Add bin and edit workflow

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/Rakefile

@@ -0,0 +1,3 @@
+import '../../../lib/google/tasks/ffi.rake'
+
+task default: ['ffi-protobuf:default']

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/convert.c

@@ -0,0 +1,335 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+// -----------------------------------------------------------------------------
+// Ruby <-> upb data conversion functions.
+//
+// This file Also contains a few other assorted algorithms on upb_MessageValue.
+//
+// None of the algorithms in this file require any access to the internal
+// representation of Ruby or upb objects.
+// -----------------------------------------------------------------------------
+
+#include "convert.h"
+
+#include "message.h"
+#include "protobuf.h"
+#include "shared_convert.h"
+
+static upb_StringView Convert_StringData(VALUE str, upb_Arena* arena) {
+  upb_StringView ret;
+  if (arena) {
+    char* ptr = upb_Arena_Malloc(arena, RSTRING_LEN(str));
+    memcpy(ptr, RSTRING_PTR(str), RSTRING_LEN(str));
+    ret.data = ptr;
+  } else {
+    // Data is only needed temporarily (within map lookup).
+    ret.data = RSTRING_PTR(str);
+  }
+  ret.size = RSTRING_LEN(str);
+  return ret;
+}
+
+static bool is_ruby_num(VALUE value) {
+  return (TYPE(value) == T_FLOAT || TYPE(value) == T_FIXNUM ||
+          TYPE(value) == T_BIGNUM);
+}
+
+static void Convert_CheckInt(const char* name, upb_CType type, VALUE val) {
+  if (!is_ruby_num(val)) {
+    rb_raise(cTypeError,
+             "Expected number type for integral field '%s' (given %s).", name,
+             rb_class2name(CLASS_OF(val)));
+  }
+
+  // NUM2{INT,UINT,LL,ULL} macros do the appropriate range checks on upper
+  // bound; we just need to do precision checks (i.e., disallow rounding) and
+  // check for < 0 on unsigned types.
+  if (TYPE(val) == T_FLOAT) {
+    double dbl_val = NUM2DBL(val);
+    if (floor(dbl_val) != dbl_val) {
+      rb_raise(rb_eRangeError,
+               "Non-integral floating point value assigned to integer field "
+               "'%s' (given %s).",
+               name, rb_class2name(CLASS_OF(val)));
+    }
+  }
+  if (type == kUpb_CType_UInt32 || type == kUpb_CType_UInt64) {
+    if (NUM2DBL(val) < 0) {
+      rb_raise(
+          rb_eRangeError,
+          "Assigning negative value to unsigned integer field '%s' (given %s).",
+          name, rb_class2name(CLASS_OF(val)));
+    }
+  }
+}
+
+static int32_t Convert_ToEnum(VALUE value, const char* name,
+                              const upb_EnumDef* e) {
+  int32_t val;
+
+  switch (TYPE(value)) {
+    case T_FLOAT:
+    case T_FIXNUM:
+    case T_BIGNUM:
+      Convert_CheckInt(name, kUpb_CType_Int32, value);
+      val = NUM2INT(value);
+      break;
+    case T_STRING: {
+      const upb_EnumValueDef* ev = upb_EnumDef_FindValueByNameWithSize(
+          e, RSTRING_PTR(value), RSTRING_LEN(value));
+      if (!ev) goto unknownval;
+      val = upb_EnumValueDef_Number(ev);
+      break;
+    }
+    case T_SYMBOL: {
+      const upb_EnumValueDef* ev =
+          upb_EnumDef_FindValueByName(e, rb_id2name(SYM2ID(value)));
+      if (!ev) goto unknownval;
+      val = upb_EnumValueDef_Number(ev);
+      break;
+    }
+    default:
+      rb_raise(cTypeError,
+               "Expected number or symbol type for enum field '%s'.", name);
+  }
+
+  return val;
+
+unknownval:
+  rb_raise(rb_eRangeError, "Unknown symbol value for enum field '%s'.", name);
+}
+
+VALUE Convert_CheckStringUtf8(VALUE str) {
+  VALUE utf8 = rb_enc_from_encoding(rb_utf8_encoding());
+
+  if (rb_obj_encoding(str) == utf8) {
+    // Note: Just because a string is marked as having UTF-8 encoding does
+    // not mean that it is *valid* UTF-8.  We have to check separately
+    // whether it is valid.
+    if (rb_enc_str_coderange(str) == ENC_CODERANGE_BROKEN) {
+      VALUE exc =
+          rb_const_get_at(rb_cEncoding, rb_intern("InvalidByteSequenceError"));
+      rb_raise(exc, "String is invalid UTF-8");
+    }
+  } else {
+    // Note: this will not duplicate underlying string data unless
+    // necessary.
+    //
+    // This will throw an exception if the conversion cannot be performed:
+    // - Encoding::UndefinedConversionError if certain characters cannot be
+    //   converted to UTF-8.
+    // - Encoding::InvalidByteSequenceError if certain characters were invalid
+    //   in the source encoding.
+    str = rb_str_encode(str, utf8, 0, Qnil);
+    PBRUBY_ASSERT(rb_enc_str_coderange(str) != ENC_CODERANGE_BROKEN);
+  }
+
+  return str;
+}
+
+upb_MessageValue Convert_RubyToUpb(VALUE value, const char* name,
+                                   TypeInfo type_info, upb_Arena* arena) {
+  upb_MessageValue ret;
+
+  switch (type_info.type) {
+    case kUpb_CType_Float:
+      if (!is_ruby_num(value)) {
+        rb_raise(cTypeError,
+                 "Expected number type for float field '%s' (given %s).", name,
+                 rb_class2name(CLASS_OF(value)));
+      }
+      ret.float_val = NUM2DBL(value);
+      break;
+    case kUpb_CType_Double:
+      if (!is_ruby_num(value)) {
+        rb_raise(cTypeError,
+                 "Expected number type for double field '%s' (given %s).", name,
+                 rb_class2name(CLASS_OF(value)));
+      }
+      ret.double_val = NUM2DBL(value);
+      break;
+    case kUpb_CType_Bool: {
+      if (value == Qtrue) {
+        ret.bool_val = 1;
+      } else if (value == Qfalse) {
+        ret.bool_val = 0;
+      } else {
+        rb_raise(cTypeError,
+                 "Invalid argument for boolean field '%s' (given %s).", name,
+                 rb_class2name(CLASS_OF(value)));
+      }
+      break;
+    }
+    case kUpb_CType_String:
+      if (rb_obj_class(value) == rb_cSymbol) {
+        value = rb_funcall(value, rb_intern("to_s"), 0);
+      } else if (!rb_obj_is_kind_of(value, rb_cString)) {
+        rb_raise(cTypeError,
+                 "Invalid argument for string field '%s' (given %s).", name,
+                 rb_class2name(CLASS_OF(value)));
+      }
+
+      value = Convert_CheckStringUtf8(value);
+      ret.str_val = Convert_StringData(value, arena);
+      break;
+    case kUpb_CType_Bytes: {
+      VALUE bytes = rb_enc_from_encoding(rb_ascii8bit_encoding());
+      if (rb_obj_class(value) != rb_cString) {
+        rb_raise(cTypeError,
+                 "Invalid argument for bytes field '%s' (given %s).", name,
+                 rb_class2name(CLASS_OF(value)));
+      }
+
+      if (rb_obj_encoding(value) != bytes) {
+        // Note: this will not duplicate underlying string data unless
+        // necessary.
+        // TODO: is this really necessary to get raw bytes?
+        value = rb_str_encode(value, bytes, 0, Qnil);
+      }
+
+      ret.str_val = Convert_StringData(value, arena);
+      break;
+    }
+    case kUpb_CType_Message:
+      ret.msg_val =
+          Message_GetUpbMessage(value, type_info.def.msgdef, name, arena);
+      break;
+    case kUpb_CType_Enum:
+      ret.int32_val = Convert_ToEnum(value, name, type_info.def.enumdef);
+      break;
+    case kUpb_CType_Int32:
+    case kUpb_CType_Int64:
+    case kUpb_CType_UInt32:
+    case kUpb_CType_UInt64:
+      Convert_CheckInt(name, type_info.type, value);
+      switch (type_info.type) {
+        case kUpb_CType_Int32:
+          ret.int32_val = NUM2INT(value);
+          break;
+        case kUpb_CType_Int64:
+          ret.int64_val = NUM2LL(value);
+          break;
+        case kUpb_CType_UInt32:
+          ret.uint32_val = NUM2UINT(value);
+          break;
+        case kUpb_CType_UInt64:
+          ret.uint64_val = NUM2ULL(value);
+          break;
+        default:
+          rb_raise(cTypeError, "Convert_RubyToUpb(): Unexpected type %d",
+                   (int)type_info.type);
+      }
+      break;
+    default:
+      rb_raise(cTypeError, "Convert_RubyToUpb(): Unexpected type %d",
+               (int)type_info.type);
+  }
+
+  return ret;
+}
+
+VALUE Convert_UpbToRuby(upb_MessageValue upb_val, TypeInfo type_info,
+                        VALUE arena) {
+  switch (type_info.type) {
+    case kUpb_CType_Float:
+      return DBL2NUM(upb_val.float_val);
+    case kUpb_CType_Double:
+      return DBL2NUM(upb_val.double_val);
+    case kUpb_CType_Bool:
+      return upb_val.bool_val ? Qtrue : Qfalse;
+    case kUpb_CType_Int32:
+      return INT2NUM(upb_val.int32_val);
+    case kUpb_CType_Int64:
+      return LL2NUM(upb_val.int64_val);
+    case kUpb_CType_UInt32:
+      return UINT2NUM(upb_val.uint32_val);
+    case kUpb_CType_UInt64:
+      return ULL2NUM(upb_val.int64_val);
+    case kUpb_CType_Enum: {
+      const upb_EnumValueDef* ev = upb_EnumDef_FindValueByNumber(
+          type_info.def.enumdef, upb_val.int32_val);
+      if (ev) {
+        return ID2SYM(rb_intern(upb_EnumValueDef_Name(ev)));
+      } else {
+        return INT2NUM(upb_val.int32_val);
+      }
+    }
+    case kUpb_CType_String: {
+      VALUE str_rb = rb_str_new(upb_val.str_val.data, upb_val.str_val.size);
+      rb_enc_associate(str_rb, rb_utf8_encoding());
+      rb_obj_freeze(str_rb);
+      return str_rb;
+    }
+    case kUpb_CType_Bytes: {
+      VALUE str_rb = rb_str_new(upb_val.str_val.data, upb_val.str_val.size);
+      rb_enc_associate(str_rb, rb_ascii8bit_encoding());
+      rb_obj_freeze(str_rb);
+      return str_rb;
+    }
+    case kUpb_CType_Message:
+      return Message_GetRubyWrapper((upb_Message*)upb_val.msg_val,
+                                    type_info.def.msgdef, arena);
+    default:
+      rb_raise(rb_eRuntimeError, "Convert_UpbToRuby(): Unexpected type %d",
+               (int)type_info.type);
+  }
+}
+
+upb_MessageValue Msgval_DeepCopy(upb_MessageValue msgval, TypeInfo type_info,
+                                 upb_Arena* arena) {
+  upb_MessageValue new_msgval;
+
+  switch (type_info.type) {
+    default:
+      memcpy(&new_msgval, &msgval, sizeof(msgval));
+      break;
+    case kUpb_CType_String:
+    case kUpb_CType_Bytes: {
+      size_t n = msgval.str_val.size;
+      char* mem = upb_Arena_Malloc(arena, n);
+      new_msgval.str_val.data = mem;
+      new_msgval.str_val.size = n;
+      memcpy(mem, msgval.str_val.data, n);
+      break;
+    }
+    case kUpb_CType_Message:
+      new_msgval.msg_val =
+          Message_deep_copy(msgval.msg_val, type_info.def.msgdef, arena);
+      break;
+  }
+
+  return new_msgval;
+}
+
+bool Msgval_IsEqual(upb_MessageValue val1, upb_MessageValue val2,
+                    TypeInfo type_info) {
+  upb_Status status;
+  upb_Status_Clear(&status);
+  bool return_value = shared_Msgval_IsEqual(val1, val2, type_info.type,
+                                            type_info.def.msgdef, &status);
+  if (upb_Status_IsOk(&status)) {
+    return return_value;
+  } else {
+    rb_raise(rb_eRuntimeError, "Msgval_IsEqual(): %s",
+             upb_Status_ErrorMessage(&status));
+  }
+}
+
+uint64_t Msgval_GetHash(upb_MessageValue val, TypeInfo type_info,
+                        uint64_t seed) {
+  upb_Status status;
+  upb_Status_Clear(&status);
+  uint64_t return_value = shared_Msgval_GetHash(
+      val, type_info.type, type_info.def.msgdef, seed, &status);
+  if (upb_Status_IsOk(&status)) {
+    return return_value;
+  } else {
+    rb_raise(rb_eRuntimeError, "Msgval_GetHash(): %s",
+             upb_Status_ErrorMessage(&status));
+  }
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/convert.h

@@ -0,0 +1,50 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#ifndef RUBY_PROTOBUF_CONVERT_H_
+#define RUBY_PROTOBUF_CONVERT_H_
+
+#include "protobuf.h"
+#include "ruby-upb.h"
+
+// Converts |ruby_val| to a upb_MessageValue according to |type_info|.
+//
+// The |arena| parameter indicates the lifetime of the container where this
+// value will be assigned. It is used as follows:
+// - If type is string or bytes, the string data will be copied into |arena|.
+// - If type is message, and we need to auto-construct a message due to implicit
+//   conversions (eg. Time -> Google::Protobuf::Timestamp), the new message
+//   will be created in |arena|.
+// - If type is message and the Ruby value is a message instance, we will fuse
+//   the message's arena into |arena|, to ensure that this message outlives the
+//   container.
+upb_MessageValue Convert_RubyToUpb(VALUE ruby_val, const char* name,
+                                   TypeInfo type_info, upb_Arena* arena);
+
+// Converts |upb_val| to a Ruby VALUE according to |type_info|. This may involve
+// creating a Ruby wrapper object.
+//
+// The |arena| parameter indicates the arena that owns the lifetime of
+// |upb_val|. Any Ruby wrapper object that is created will reference |arena|
+// and ensure it outlives the wrapper.
+VALUE Convert_UpbToRuby(upb_MessageValue upb_val, TypeInfo type_info,
+                        VALUE arena);
+
+// Creates a deep copy of |msgval| in |arena|.
+upb_MessageValue Msgval_DeepCopy(upb_MessageValue msgval, TypeInfo type_info,
+                                 upb_Arena* arena);
+
+// Returns true if |val1| and |val2| are equal. Their type is given by
+// |type_info|.
+bool Msgval_IsEqual(upb_MessageValue val1, upb_MessageValue val2,
+                    TypeInfo type_info);
+
+// Returns a hash value for the given upb_MessageValue.
+uint64_t Msgval_GetHash(upb_MessageValue val, TypeInfo type_info,
+                        uint64_t seed);
+
+#endif  // RUBY_PROTOBUF_CONVERT_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/defs.h

@@ -0,0 +1,82 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#ifndef RUBY_PROTOBUF_DEFS_H_
+#define RUBY_PROTOBUF_DEFS_H_
+
+#include "protobuf.h"
+#include "ruby-upb.h"
+
+// -----------------------------------------------------------------------------
+// TypeInfo
+// -----------------------------------------------------------------------------
+
+// This bundles a upb_CType and msgdef/enumdef when appropriate. This is
+// convenient for functions that need type information but cannot necessarily
+// assume a upb_FieldDef will be available.
+//
+// For example, Google::Protobuf::Map and Google::Protobuf::RepeatedField can
+// be constructed with type information alone:
+//
+//   # RepeatedField will internally store the type information in a TypeInfo.
+//   Google::Protobuf::RepeatedField.new(:message, FooMessage)
+
+typedef struct {
+  upb_CType type;
+  union {
+    const upb_MessageDef* msgdef;  // When type == kUpb_CType_Message
+    const upb_EnumDef* enumdef;    // When type == kUpb_CType_Enum
+  } def;
+} TypeInfo;
+
+static inline TypeInfo TypeInfo_get(const upb_FieldDef* f) {
+  TypeInfo ret = {upb_FieldDef_CType(f), {NULL}};
+  switch (ret.type) {
+    case kUpb_CType_Message:
+      ret.def.msgdef = upb_FieldDef_MessageSubDef(f);
+      break;
+    case kUpb_CType_Enum:
+      ret.def.enumdef = upb_FieldDef_EnumSubDef(f);
+      break;
+    default:
+      break;
+  }
+  return ret;
+}
+
+TypeInfo TypeInfo_FromClass(int argc, VALUE* argv, int skip_arg,
+                            VALUE* type_class, VALUE* init_arg);
+
+static inline TypeInfo TypeInfo_from_type(upb_CType type) {
+  TypeInfo ret = {type};
+  assert(type != kUpb_CType_Message && type != kUpb_CType_Enum);
+  return ret;
+}
+
+// -----------------------------------------------------------------------------
+// Other utilities
+// -----------------------------------------------------------------------------
+
+VALUE Descriptor_DefToClass(const upb_MessageDef* m);
+
+// Returns the underlying msgdef, enumdef, or symtab (respectively) for the
+// given Descriptor, EnumDescriptor, or DescriptorPool Ruby object.
+const upb_EnumDef* EnumDescriptor_GetEnumDef(VALUE enum_desc_rb);
+const upb_DefPool* DescriptorPool_GetSymtab(VALUE desc_pool_rb);
+const upb_MessageDef* Descriptor_GetMsgDef(VALUE desc_rb);
+
+// Returns a upb field type for the given Ruby symbol
+// (eg. :float => kUpb_CType_Float).
+upb_CType ruby_to_fieldtype(VALUE type);
+
+// The singleton generated pool (a DescriptorPool object).
+extern VALUE generated_pool;
+
+// Call at startup to register all types in this module.
+void Defs_register(VALUE module);
+
+#endif  // RUBY_PROTOBUF_DEFS_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/extconf.rb

@@ -0,0 +1,38 @@
+#!/usr/bin/ruby
+
+require 'mkmf'
+
+ext_name = "google/protobuf_c"
+
+dir_config(ext_name)
+
+if ENV["CC"]
+  RbConfig::CONFIG["CC"] = RbConfig::MAKEFILE_CONFIG["CC"] = ENV["CC"]
+end
+
+if ENV["CXX"]
+  RbConfig::CONFIG["CXX"] = RbConfig::MAKEFILE_CONFIG["CXX"] = ENV["CXX"]
+end
+
+if ENV["LD"]
+  RbConfig::CONFIG["LD"] = RbConfig::MAKEFILE_CONFIG["LD"] = ENV["LD"]
+end
+
+debug_enabled = ENV["PROTOBUF_CONFIG"] == "dbg"
+
+additional_c_flags = debug_enabled ? "-O0 -fno-omit-frame-pointer -fvisibility=default -g" : "-O3 -DNDEBUG -fvisibility=hidden"
+
+if RUBY_PLATFORM =~ /darwin/ || RUBY_PLATFORM =~ /linux/ || RUBY_PLATFORM =~ /freebsd/
+  $CFLAGS += " -std=gnu99 -Wall -Wsign-compare -Wno-declaration-after-statement #{additional_c_flags}"
+else
+  $CFLAGS += " -std=gnu99 #{additional_c_flags}"
+end
+
+$VPATH << "$(srcdir)/third_party/utf8_range"
+$INCFLAGS += " -I$(srcdir)/third_party/utf8_range"
+
+$srcs = ["protobuf.c", "convert.c", "defs.c", "message.c", "repeated_field.c",
+         "map.c", "ruby-upb.c", "utf8_range.c", "shared_convert.c",
+         "shared_message.c"]
+
+create_makefile(ext_name)

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/glue.c

@@ -0,0 +1,135 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2023 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+// -----------------------------------------------------------------------------
+// Exposing inlined UPB functions. Strictly free of dependencies on
+// Ruby interpreter internals.
+
+#include "ruby-upb.h"
+
+upb_Arena* Arena_create() { return upb_Arena_Init(NULL, 0, &upb_alloc_global); }
+
+google_protobuf_FileDescriptorProto* FileDescriptorProto_parse(
+    const char* serialized_file_proto, size_t length, upb_Arena* arena) {
+  return google_protobuf_FileDescriptorProto_parse(serialized_file_proto,
+                                                   length, arena);
+}
+
+char* EnumDescriptor_serialized_options(const upb_EnumDef* enumdef,
+                                        size_t* size, upb_Arena* arena) {
+  const google_protobuf_EnumOptions* opts = upb_EnumDef_Options(enumdef);
+  char* serialized = google_protobuf_EnumOptions_serialize(opts, arena, size);
+  return serialized;
+}
+
+char* EnumDescriptor_serialized_to_proto(const upb_EnumDef* enumdef,
+                                         size_t* size, upb_Arena* arena) {
+  const google_protobuf_EnumDescriptorProto* file_proto =
+      upb_EnumDef_ToProto(enumdef, arena);
+  char* serialized =
+      google_protobuf_EnumDescriptorProto_serialize(file_proto, arena, size);
+  return serialized;
+}
+
+char* FileDescriptor_serialized_options(const upb_FileDef* filedef,
+                                        size_t* size, upb_Arena* arena) {
+  const google_protobuf_FileOptions* opts = upb_FileDef_Options(filedef);
+  char* serialized = google_protobuf_FileOptions_serialize(opts, arena, size);
+  return serialized;
+}
+
+char* FileDescriptor_serialized_to_proto(const upb_FileDef* filedef,
+                                         size_t* size, upb_Arena* arena) {
+  const google_protobuf_FileDescriptorProto* file_proto =
+      upb_FileDef_ToProto(filedef, arena);
+  char* serialized =
+      google_protobuf_FileDescriptorProto_serialize(file_proto, arena, size);
+  return serialized;
+}
+
+char* Descriptor_serialized_options(const upb_MessageDef* msgdef, size_t* size,
+                                    upb_Arena* arena) {
+  const google_protobuf_MessageOptions* opts = upb_MessageDef_Options(msgdef);
+  char* serialized =
+      google_protobuf_MessageOptions_serialize(opts, arena, size);
+  return serialized;
+}
+
+char* Descriptor_serialized_to_proto(const upb_MessageDef* msgdef, size_t* size,
+                                     upb_Arena* arena) {
+  const google_protobuf_DescriptorProto* proto =
+      upb_MessageDef_ToProto(msgdef, arena);
+  char* serialized =
+      google_protobuf_DescriptorProto_serialize(proto, arena, size);
+  return serialized;
+}
+
+char* OneOfDescriptor_serialized_options(const upb_OneofDef* oneofdef,
+                                         size_t* size, upb_Arena* arena) {
+  const google_protobuf_OneofOptions* opts = upb_OneofDef_Options(oneofdef);
+  char* serialized = google_protobuf_OneofOptions_serialize(opts, arena, size);
+  return serialized;
+}
+
+char* OneOfDescriptor_serialized_to_proto(const upb_OneofDef* oneofdef,
+                                          size_t* size, upb_Arena* arena) {
+  const google_protobuf_OneofDescriptorProto* proto =
+      upb_OneofDef_ToProto(oneofdef, arena);
+  char* serialized =
+      google_protobuf_OneofDescriptorProto_serialize(proto, arena, size);
+  return serialized;
+}
+
+char* FieldDescriptor_serialized_options(const upb_FieldDef* fielddef,
+                                         size_t* size, upb_Arena* arena) {
+  const google_protobuf_FieldOptions* opts = upb_FieldDef_Options(fielddef);
+  char* serialized = google_protobuf_FieldOptions_serialize(opts, arena, size);
+  return serialized;
+}
+
+char* FieldDescriptor_serialized_to_proto(const upb_FieldDef* fieldef,
+                                          size_t* size, upb_Arena* arena) {
+  const google_protobuf_FieldDescriptorProto* proto =
+      upb_FieldDef_ToProto(fieldef, arena);
+  char* serialized =
+      google_protobuf_FieldDescriptorProto_serialize(proto, arena, size);
+  return serialized;
+}
+
+char* ServiceDescriptor_serialized_options(const upb_ServiceDef* servicedef,
+                                           size_t* size, upb_Arena* arena) {
+  const google_protobuf_ServiceOptions* opts =
+      upb_ServiceDef_Options(servicedef);
+  char* serialized =
+      google_protobuf_ServiceOptions_serialize(opts, arena, size);
+  return serialized;
+}
+
+char* ServiceDescriptor_serialized_to_proto(const upb_ServiceDef* servicedef,
+                                            size_t* size, upb_Arena* arena) {
+  const google_protobuf_ServiceDescriptorProto* proto =
+      upb_ServiceDef_ToProto(servicedef, arena);
+  char* serialized =
+      google_protobuf_ServiceDescriptorProto_serialize(proto, arena, size);
+  return serialized;
+}
+
+char* MethodDescriptor_serialized_options(const upb_MethodDef* methoddef,
+                                          size_t* size, upb_Arena* arena) {
+  const google_protobuf_MethodOptions* opts = upb_MethodDef_Options(methoddef);
+  char* serialized = google_protobuf_MethodOptions_serialize(opts, arena, size);
+  return serialized;
+}
+
+char* MethodDescriptor_serialized_to_proto(const upb_MethodDef* methodef,
+                                           size_t* size, upb_Arena* arena) {
+  const google_protobuf_MethodDescriptorProto* proto =
+      upb_MethodDef_ToProto(methodef, arena);
+  char* serialized =
+      google_protobuf_MethodDescriptorProto_serialize(proto, arena, size);
+  return serialized;
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/map.c

@@ -0,0 +1,768 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2014 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#include "convert.h"
+#include "defs.h"
+#include "message.h"
+#include "protobuf.h"
+
+// -----------------------------------------------------------------------------
+// Basic map operations on top of upb_Map.
+//
+// Note that we roll our own `Map` container here because, as for
+// `RepeatedField`, we want a strongly-typed container. This is so that any user
+// errors due to incorrect map key or value types are raised as close as
+// possible to the error site, rather than at some deferred point (e.g.,
+// serialization).
+// -----------------------------------------------------------------------------
+
+// -----------------------------------------------------------------------------
+// Map container type.
+// -----------------------------------------------------------------------------
+
+typedef struct {
+  const upb_Map* map;  // Can convert to mutable when non-frozen.
+  upb_CType key_type;
+  TypeInfo value_type_info;
+  VALUE value_type_class;
+  VALUE arena;
+} Map;
+
+static void Map_mark(void* _self) {
+  Map* self = _self;
+  rb_gc_mark(self->value_type_class);
+  rb_gc_mark(self->arena);
+}
+
+static size_t Map_memsize(const void* _self) { return sizeof(Map); }
+
+const rb_data_type_t Map_type = {
+    "Google::Protobuf::Map",
+    {Map_mark, RUBY_DEFAULT_FREE, Map_memsize},
+    .flags = RUBY_TYPED_FREE_IMMEDIATELY,
+};
+
+VALUE cMap;
+
+static Map* ruby_to_Map(VALUE _self) {
+  Map* self;
+  TypedData_Get_Struct(_self, Map, &Map_type, self);
+  return self;
+}
+
+static VALUE Map_alloc(VALUE klass) {
+  Map* self = ALLOC(Map);
+  self->map = NULL;
+  self->value_type_class = Qnil;
+  self->value_type_info.def.msgdef = NULL;
+  self->arena = Qnil;
+  return TypedData_Wrap_Struct(klass, &Map_type, self);
+}
+
+VALUE Map_GetRubyWrapper(const upb_Map* map, upb_CType key_type,
+                         TypeInfo value_type, VALUE arena) {
+  PBRUBY_ASSERT(map);
+  PBRUBY_ASSERT(arena != Qnil);
+
+  VALUE val = ObjectCache_Get(map);
+
+  if (val == Qnil) {
+    val = Map_alloc(cMap);
+    Map* self;
+    TypedData_Get_Struct(val, Map, &Map_type, self);
+    self->map = map;
+    self->arena = arena;
+    self->key_type = key_type;
+    self->value_type_info = value_type;
+    if (self->value_type_info.type == kUpb_CType_Message) {
+      const upb_MessageDef* val_m = self->value_type_info.def.msgdef;
+      self->value_type_class = Descriptor_DefToClass(val_m);
+    }
+    return ObjectCache_TryAdd(map, val);
+  }
+  return val;
+}
+
+static VALUE Map_new_this_type(Map* from) {
+  VALUE arena_rb = Arena_new();
+  upb_Map* map = upb_Map_New(Arena_get(arena_rb), from->key_type,
+                             from->value_type_info.type);
+  VALUE ret =
+      Map_GetRubyWrapper(map, from->key_type, from->value_type_info, arena_rb);
+  PBRUBY_ASSERT(ruby_to_Map(ret)->value_type_class == from->value_type_class);
+  return ret;
+}
+
+static TypeInfo Map_keyinfo(Map* self) {
+  TypeInfo ret;
+  ret.type = self->key_type;
+  ret.def.msgdef = NULL;
+  return ret;
+}
+
+static upb_Map* Map_GetMutable(VALUE _self) {
+  const upb_Map* map = ruby_to_Map(_self)->map;
+  Protobuf_CheckNotFrozen(_self, upb_Map_IsFrozen(map));
+  return (upb_Map*)map;
+}
+
+VALUE Map_CreateHash(const upb_Map* map, upb_CType key_type,
+                     TypeInfo val_info) {
+  VALUE hash = rb_hash_new();
+  TypeInfo key_info = TypeInfo_from_type(key_type);
+
+  if (!map) return hash;
+
+  size_t iter = kUpb_Map_Begin;
+  upb_MessageValue key, val;
+  while (upb_Map_Next(map, &key, &val, &iter)) {
+    VALUE key_val = Convert_UpbToRuby(key, key_info, Qnil);
+    VALUE val_val = Scalar_CreateHash(val, val_info);
+    rb_hash_aset(hash, key_val, val_val);
+  }
+
+  return hash;
+}
+
+VALUE Map_deep_copy(VALUE obj) {
+  Map* self = ruby_to_Map(obj);
+  VALUE new_arena_rb = Arena_new();
+  upb_Arena* arena = Arena_get(new_arena_rb);
+  upb_Map* new_map =
+      upb_Map_New(arena, self->key_type, self->value_type_info.type);
+  size_t iter = kUpb_Map_Begin;
+  upb_MessageValue key, val;
+  while (upb_Map_Next(self->map, &key, &val, &iter)) {
+    upb_MessageValue val_copy =
+        Msgval_DeepCopy(val, self->value_type_info, arena);
+    upb_Map_Set(new_map, key, val_copy, arena);
+  }
+
+  return Map_GetRubyWrapper(new_map, self->key_type, self->value_type_info,
+                            new_arena_rb);
+}
+
+const upb_Map* Map_GetUpbMap(VALUE val, const upb_FieldDef* field,
+                             upb_Arena* arena) {
+  const upb_FieldDef* key_field = map_field_key(field);
+  const upb_FieldDef* value_field = map_field_value(field);
+  TypeInfo value_type_info = TypeInfo_get(value_field);
+  Map* self;
+
+  if (!RB_TYPE_P(val, T_DATA) || !RTYPEDDATA_P(val) ||
+      RTYPEDDATA_TYPE(val) != &Map_type) {
+    rb_raise(cTypeError, "Expected Map instance");
+  }
+
+  self = ruby_to_Map(val);
+  if (self->key_type != upb_FieldDef_CType(key_field)) {
+    rb_raise(cTypeError, "Map key type does not match field's key type");
+  }
+  if (self->value_type_info.type != value_type_info.type) {
+    rb_raise(cTypeError, "Map value type does not match field's value type");
+  }
+  if (self->value_type_info.def.msgdef != value_type_info.def.msgdef) {
+    rb_raise(cTypeError, "Map value type has wrong message/enum class");
+  }
+
+  Arena_fuse(self->arena, arena);
+  return self->map;
+}
+
+void Map_Inspect(StringBuilder* b, const upb_Map* map, upb_CType key_type,
+                 TypeInfo val_type) {
+  bool first = true;
+  TypeInfo key_type_info = {key_type};
+  StringBuilder_Printf(b, "{");
+  if (map) {
+    size_t iter = kUpb_Map_Begin;
+    upb_MessageValue key, val;
+    while (upb_Map_Next(map, &key, &val, &iter)) {
+      if (first) {
+        first = false;
+      } else {
+        StringBuilder_Printf(b, ", ");
+      }
+      StringBuilder_PrintMsgval(b, key, key_type_info);
+      StringBuilder_Printf(b, "=>");
+      StringBuilder_PrintMsgval(b, val, val_type);
+    }
+  }
+  StringBuilder_Printf(b, "}");
+}
+
+static int merge_into_self_callback(VALUE key, VALUE val, VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  upb_Arena* arena = Arena_get(self->arena);
+  upb_MessageValue key_val =
+      Convert_RubyToUpb(key, "", Map_keyinfo(self), arena);
+  upb_MessageValue val_val =
+      Convert_RubyToUpb(val, "", self->value_type_info, arena);
+  upb_Map_Set(Map_GetMutable(_self), key_val, val_val, arena);
+  return ST_CONTINUE;
+}
+
+// Used only internally -- shared by #merge and #initialize.
+static VALUE Map_merge_into_self(VALUE _self, VALUE hashmap) {
+  if (TYPE(hashmap) == T_HASH) {
+    rb_hash_foreach(hashmap, merge_into_self_callback, _self);
+  } else if (RB_TYPE_P(hashmap, T_DATA) && RTYPEDDATA_P(hashmap) &&
+             RTYPEDDATA_TYPE(hashmap) == &Map_type) {
+    Map* self = ruby_to_Map(_self);
+    Map* other = ruby_to_Map(hashmap);
+    upb_Arena* arena = Arena_get(self->arena);
+    upb_Map* self_map = Map_GetMutable(_self);
+
+    Arena_fuse(other->arena, arena);
+
+    if (self->key_type != other->key_type ||
+        self->value_type_info.type != other->value_type_info.type ||
+        self->value_type_class != other->value_type_class) {
+      rb_raise(rb_eArgError, "Attempt to merge Map with mismatching types");
+    }
+
+    size_t iter = kUpb_Map_Begin;
+    upb_MessageValue key, val;
+    while (upb_Map_Next(other->map, &key, &val, &iter)) {
+      upb_Map_Set(self_map, key, val, arena);
+    }
+  } else {
+    rb_raise(rb_eArgError, "Unknown type merging into Map");
+  }
+  return _self;
+}
+
+/**
+ * ruby-doc: Map
+ *
+ * This class represents a Protobuf Map. It is largely automatically transformed
+ * to and from a Ruby hash.
+ */
+
+/*
+ * ruby-doc: Map#initialize
+ *
+ * Allocates a new Map container. This constructor may be called with 2, 3, or 4
+ * arguments. The first two arguments are always present and are symbols (taking
+ * on the same values as field-type symbols in message descriptors) that
+ * indicate the type of the map key and value fields.
+ *
+ * The supported key types are: :int32, :int64, :uint32, :uint64, :bool,
+ * :string, :bytes.
+ *
+ * The supported value types are: :int32, :int64, :uint32, :uint64, :bool,
+ * :string, :bytes, :enum, :message.
+ *
+ * The third argument, value_typeclass, must be present if value_type is :enum
+ * or :message. As in RepeatedField#new, this argument must be a message class
+ * (for :message) or enum module (for :enum).
+ *
+ * The last argument, if present, provides initial content for map. Note that
+ * this may be an ordinary Ruby hashmap or another Map instance with identical
+ * key and value types. Also note that this argument may be present whether or
+ * not value_typeclass is present (and it is unambiguously separate from
+ * value_typeclass because value_typeclass's presence is strictly determined by
+ * value_type). The contents of this initial hashmap or Map instance are
+ * shallow-copied into the new Map: the original map is unmodified, but
+ * references to underlying objects will be shared if the value type is a
+ * message type.
+ *
+ * @param key_type [Symbol]
+ * @param value_type [Symbol]
+ * @param value_typeclass [Class<AbstractMessage>,Module]
+ * @paramdefault value_typeclass nil
+ * @param init_hashmap [Hash,Map]
+ * @paramdefault init_hashmap {}
+ */
+static VALUE Map_init(int argc, VALUE* argv, VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  VALUE init_arg;
+
+  // We take either two args (:key_type, :value_type), three args (:key_type,
+  // :value_type, "ValueMessageType"), or four args (the above plus an initial
+  // hashmap).
+  if (argc < 2 || argc > 4) {
+    rb_raise(rb_eArgError, "Map constructor expects 2, 3 or 4 arguments.");
+  }
+
+  self->key_type = ruby_to_fieldtype(argv[0]);
+  self->value_type_info =
+      TypeInfo_FromClass(argc, argv, 1, &self->value_type_class, &init_arg);
+  self->arena = Arena_new();
+
+  // Check that the key type is an allowed type.
+  switch (self->key_type) {
+    case kUpb_CType_Int32:
+    case kUpb_CType_Int64:
+    case kUpb_CType_UInt32:
+    case kUpb_CType_UInt64:
+    case kUpb_CType_Bool:
+    case kUpb_CType_String:
+    case kUpb_CType_Bytes:
+      // These are OK.
+      break;
+    default:
+      rb_raise(rb_eArgError, "Invalid key type for map.");
+  }
+
+  self->map = upb_Map_New(Arena_get(self->arena), self->key_type,
+                          self->value_type_info.type);
+  VALUE stored = ObjectCache_TryAdd(self->map, _self);
+  (void)stored;
+  PBRUBY_ASSERT(stored == _self);
+
+  if (init_arg != Qnil) {
+    Map_merge_into_self(_self, init_arg);
+  }
+
+  return Qnil;
+}
+
+/*
+ * ruby-doc: Map#each
+ *
+ * Invokes &block on each |key, value| pair in the map, in unspecified order.
+ * Note that Map also includes Enumerable; map thus acts like a normal Ruby
+ * sequence.
+ *
+ * @yield [Object, Object]
+ * @return [nil]
+ */
+static VALUE Map_each(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  size_t iter = kUpb_Map_Begin;
+  upb_MessageValue key, val;
+
+  while (upb_Map_Next(self->map, &key, &val, &iter)) {
+    VALUE key_val = Convert_UpbToRuby(key, Map_keyinfo(self), self->arena);
+    VALUE val_val = Convert_UpbToRuby(val, self->value_type_info, self->arena);
+    rb_yield_values(2, key_val, val_val);
+  }
+
+  return Qnil;
+}
+
+/*
+ * ruby-doc: Map#keys
+ *
+ * Returns the list of keys contained in the map, in unspecified order.
+ *
+ * @return [Array<Object>]
+ */
+static VALUE Map_keys(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  size_t iter = kUpb_Map_Begin;
+  VALUE ret = rb_ary_new();
+  upb_MessageValue key, val;
+
+  while (upb_Map_Next(self->map, &key, &val, &iter)) {
+    VALUE key_val = Convert_UpbToRuby(key, Map_keyinfo(self), self->arena);
+    rb_ary_push(ret, key_val);
+  }
+
+  return ret;
+}
+
+/*
+ * ruby-doc: Map#values
+ *
+ * Returns the list of values contained in the map, in unspecified order.
+ *
+ * @return [Array<Object>]
+ */
+static VALUE Map_values(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  size_t iter = kUpb_Map_Begin;
+  VALUE ret = rb_ary_new();
+  upb_MessageValue key, val;
+
+  while (upb_Map_Next(self->map, &key, &val, &iter)) {
+    VALUE val_val = Convert_UpbToRuby(val, self->value_type_info, self->arena);
+    rb_ary_push(ret, val_val);
+  }
+
+  return ret;
+}
+
+/*
+ * ruby-doc: Map#[]
+ *
+ * Accesses the element at the given key. Throws an exception if the key type is
+ * incorrect. Returns nil when the key is not present in the map.
+ *
+ * @param key [Object]
+ * @return [Object]
+ */
+static VALUE Map_index(VALUE _self, VALUE key) {
+  Map* self = ruby_to_Map(_self);
+  upb_MessageValue key_upb =
+      Convert_RubyToUpb(key, "", Map_keyinfo(self), NULL);
+  upb_MessageValue val;
+
+  if (upb_Map_Get(self->map, key_upb, &val)) {
+    return Convert_UpbToRuby(val, self->value_type_info, self->arena);
+  } else {
+    return Qnil;
+  }
+}
+
+/*
+ * ruby-doc: Map#[]=
+ *
+ * Inserts or overwrites the value at the given key with the given new value.
+ * Throws an exception if the key type is incorrect. Returns the new value that
+ * was just inserted.
+ *
+ * @param key [Object]
+ * @param value [Object]
+ * @return [Object]
+ */
+static VALUE Map_index_set(VALUE _self, VALUE key, VALUE val) {
+  Map* self = ruby_to_Map(_self);
+  upb_Arena* arena = Arena_get(self->arena);
+  upb_MessageValue key_upb =
+      Convert_RubyToUpb(key, "", Map_keyinfo(self), NULL);
+  upb_MessageValue val_upb =
+      Convert_RubyToUpb(val, "", self->value_type_info, arena);
+
+  upb_Map_Set(Map_GetMutable(_self), key_upb, val_upb, arena);
+
+  return val;
+}
+
+/*
+ * ruby-doc: Map#has_key?
+ *
+ * Returns true if the given key is present in the map. Throws an exception if
+ * the key has the wrong type.
+ *
+ * @param key [Object]
+ * @return [Boolean]
+ */
+static VALUE Map_has_key(VALUE _self, VALUE key) {
+  Map* self = ruby_to_Map(_self);
+  upb_MessageValue key_upb =
+      Convert_RubyToUpb(key, "", Map_keyinfo(self), NULL);
+
+  if (upb_Map_Get(self->map, key_upb, NULL)) {
+    return Qtrue;
+  } else {
+    return Qfalse;
+  }
+}
+
+/*
+ * ruby-doc: Map#delete
+ *
+ * Deletes the value at the given key, if any, returning either the old value or
+ * nil if none was present. Throws an exception if the key is of the wrong type.
+ *
+ * @param key [Object]
+ * @return [Object]
+ */
+static VALUE Map_delete(VALUE _self, VALUE key) {
+  upb_Map* map = Map_GetMutable(_self);
+  Map* self = ruby_to_Map(_self);
+
+  upb_MessageValue key_upb =
+      Convert_RubyToUpb(key, "", Map_keyinfo(self), NULL);
+  upb_MessageValue val_upb;
+
+  if (upb_Map_Delete(map, key_upb, &val_upb)) {
+    return Convert_UpbToRuby(val_upb, self->value_type_info, self->arena);
+  } else {
+    return Qnil;
+  }
+}
+
+/*
+ * ruby-doc: Map#clear
+ *
+ * Removes all entries from the map.
+ *
+ * @return [nil]
+ */
+static VALUE Map_clear(VALUE _self) {
+  upb_Map_Clear(Map_GetMutable(_self));
+  return Qnil;
+}
+
+/*
+ * ruby-doc: Map#length
+ *
+ * Returns the number of entries (key-value pairs) in the map.
+ *
+ * @return [Integer]
+ */
+static VALUE Map_length(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  return ULL2NUM(upb_Map_Size(self->map));
+}
+
+/*
+ * ruby-doc: Map#dup
+ *
+ * Duplicates this map with a shallow copy. References to all non-primitive
+ * element objects (e.g., submessages) are shared.
+ *
+ * @return [Map]
+ */
+static VALUE Map_dup(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  VALUE new_map_rb = Map_new_this_type(self);
+  Map* new_self = ruby_to_Map(new_map_rb);
+  size_t iter = kUpb_Map_Begin;
+  upb_Arena* arena = Arena_get(new_self->arena);
+  upb_Map* new_map = Map_GetMutable(new_map_rb);
+
+  Arena_fuse(self->arena, arena);
+
+  upb_MessageValue key, val;
+  while (upb_Map_Next(self->map, &key, &val, &iter)) {
+    upb_Map_Set(new_map, key, val, arena);
+  }
+
+  return new_map_rb;
+}
+
+/*
+ * ruby-doc: Map#==
+ *
+ * Compares this map to another. Maps are equal if they have identical key sets,
+ * and for each key, the values in both maps compare equal. Elements are
+ * compared as per normal Ruby semantics, by calling their :== methods (or
+ * performing a more efficient comparison for primitive types).
+ *
+ * Maps with dissimilar key types or value types/typeclasses are never equal,
+ * even if value comparison (for example, between integers and floats) would
+ * have otherwise indicated that every element has equal value.
+ *
+ * @param other [Map]
+ * @return [Boolean]
+ */
+VALUE Map_eq(VALUE _self, VALUE _other) {
+  Map* self = ruby_to_Map(_self);
+  Map* other;
+
+  // Allow comparisons to Ruby hashmaps by converting to a temporary Map
+  // instance. Slow, but workable.
+  if (TYPE(_other) == T_HASH) {
+    VALUE other_map = Map_new_this_type(self);
+    Map_merge_into_self(other_map, _other);
+    _other = other_map;
+  }
+
+  other = ruby_to_Map(_other);
+
+  if (self == other) {
+    return Qtrue;
+  }
+  if (self->key_type != other->key_type ||
+      self->value_type_info.type != other->value_type_info.type ||
+      self->value_type_class != other->value_type_class) {
+    return Qfalse;
+  }
+  if (upb_Map_Size(self->map) != upb_Map_Size(other->map)) {
+    return Qfalse;
+  }
+
+  // For each member of self, check that an equal member exists at the same key
+  // in other.
+  size_t iter = kUpb_Map_Begin;
+  upb_MessageValue key, val;
+  while (upb_Map_Next(self->map, &key, &val, &iter)) {
+    upb_MessageValue other_val;
+    if (!upb_Map_Get(other->map, key, &other_val)) {
+      // Not present in other map.
+      return Qfalse;
+    }
+    if (!Msgval_IsEqual(val, other_val, self->value_type_info)) {
+      // Present but different value.
+      return Qfalse;
+    }
+  }
+
+  return Qtrue;
+}
+
+/*
+ * ruby-doc: Map#frozen?
+ *
+ * Returns true if the map is frozen in either Ruby or the underlying
+ * representation. Freezes the Ruby map object if it is not already frozen in
+ * Ruby but it is frozen in the underlying representation.
+ *
+ * @return [Boolean]
+ */
+VALUE Map_frozen(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  if (!upb_Map_IsFrozen(self->map)) {
+    PBRUBY_ASSERT(!RB_OBJ_FROZEN(_self));
+    return Qfalse;
+  }
+
+  // Lazily freeze the Ruby wrapper.
+  if (!RB_OBJ_FROZEN(_self)) RB_OBJ_FREEZE(_self);
+  return Qtrue;
+}
+
+/*
+ * ruby-doc: Map#freeze
+ *
+ * Freezes the map object. We have to intercept this so we can freeze the
+ * underlying representation, not just the Ruby wrapper.
+ *
+ * @return [self]
+ */
+VALUE Map_freeze(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  if (RB_OBJ_FROZEN(_self)) {
+    PBRUBY_ASSERT(upb_Map_IsFrozen(self->map));
+    return _self;
+  }
+
+  if (!upb_Map_IsFrozen(self->map)) {
+    if (self->value_type_info.type == kUpb_CType_Message) {
+      upb_Map_Freeze(
+          Map_GetMutable(_self),
+          upb_MessageDef_MiniTable(self->value_type_info.def.msgdef));
+    } else {
+      upb_Map_Freeze(Map_GetMutable(_self), NULL);
+    }
+  }
+
+  RB_OBJ_FREEZE(_self);
+
+  return _self;
+}
+
+VALUE Map_EmptyFrozen(const upb_FieldDef* f) {
+  PBRUBY_ASSERT(upb_FieldDef_IsMap(f));
+  VALUE val = ObjectCache_Get(f);
+
+  if (val == Qnil) {
+    const upb_FieldDef* key_f = map_field_key(f);
+    const upb_FieldDef* val_f = map_field_value(f);
+    upb_CType key_type = upb_FieldDef_CType(key_f);
+    TypeInfo value_type_info = TypeInfo_get(val_f);
+    val = Map_alloc(cMap);
+    Map* self;
+    TypedData_Get_Struct(val, Map, &Map_type, self);
+    self->arena = Arena_new();
+    self->map =
+        upb_Map_New(Arena_get(self->arena), key_type, value_type_info.type);
+    self->key_type = key_type;
+    self->value_type_info = value_type_info;
+    if (self->value_type_info.type == kUpb_CType_Message) {
+      const upb_MessageDef* val_m = value_type_info.def.msgdef;
+      self->value_type_class = Descriptor_DefToClass(val_m);
+    }
+    return ObjectCache_TryAdd(f, Map_freeze(val));
+  }
+  PBRUBY_ASSERT(RB_OBJ_FROZEN(val));
+  PBRUBY_ASSERT(upb_Map_IsFrozen(ruby_to_Map(val)->map));
+  return val;
+}
+
+/*
+ * ruby-doc: Map#hash
+ *
+ * Returns a hash value based on this map's contents.
+ *
+ * @return [Integer]
+ */
+VALUE Map_hash(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  uint64_t hash = 0;
+
+  size_t iter = kUpb_Map_Begin;
+  TypeInfo key_info = {self->key_type};
+  upb_MessageValue key, val;
+  while (upb_Map_Next(self->map, &key, &val, &iter)) {
+    hash += Msgval_GetHash(key, key_info, 0);
+    hash += Msgval_GetHash(val, self->value_type_info, 0);
+  }
+
+  return LL2NUM(hash);
+}
+
+/*
+ * ruby-doc: Map#to_h
+ *
+ * Returns a Ruby Hash object containing all the values within the map
+ *
+ * @return [Hash]
+ */
+VALUE Map_to_h(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+  return Map_CreateHash(self->map, self->key_type, self->value_type_info);
+}
+
+/*
+ * ruby-doc: Map#inspect
+ *
+ * Returns a string representing this map's elements. It will be formatted as
+ * "{key => value, key => value, ...}", with each key and value string
+ * representation computed by its own #inspect method.
+ *
+ * @return [String]
+ */
+VALUE Map_inspect(VALUE _self) {
+  Map* self = ruby_to_Map(_self);
+
+  StringBuilder* builder = StringBuilder_New();
+  Map_Inspect(builder, self->map, self->key_type, self->value_type_info);
+  VALUE ret = StringBuilder_ToRubyString(builder);
+  StringBuilder_Free(builder);
+  return ret;
+}
+
+/*
+ * ruby-doc: Map#merge
+ *
+ * Copies key/value pairs from other_map into a copy of this map. If a key is
+ * set in other_map and this map, the value from other_map overwrites the value
+ * in the new copy of this map. Returns the new copy of this map with merged
+ * contents.
+ *
+ * @param other_map [Map]
+ * @return [Map]
+ */
+static VALUE Map_merge(VALUE _self, VALUE hashmap) {
+  VALUE dupped = Map_dup(_self);
+  return Map_merge_into_self(dupped, hashmap);
+}
+
+void Map_register(VALUE module) {
+  VALUE klass = rb_define_class_under(module, "Map", rb_cObject);
+  rb_define_alloc_func(klass, Map_alloc);
+  rb_gc_register_address(&cMap);
+  cMap = klass;
+
+  rb_define_method(klass, "initialize", Map_init, -1);
+  rb_define_method(klass, "each", Map_each, 0);
+  rb_define_method(klass, "keys", Map_keys, 0);
+  rb_define_method(klass, "values", Map_values, 0);
+  rb_define_method(klass, "[]", Map_index, 1);
+  rb_define_method(klass, "[]=", Map_index_set, 2);
+  rb_define_method(klass, "has_key?", Map_has_key, 1);
+  rb_define_method(klass, "delete", Map_delete, 1);
+  rb_define_method(klass, "clear", Map_clear, 0);
+  rb_define_method(klass, "length", Map_length, 0);
+  rb_define_method(klass, "size", Map_length, 0);
+  rb_define_method(klass, "dup", Map_dup, 0);
+  // Also define #clone so that we don't inherit Object#clone.
+  rb_define_method(klass, "clone", Map_dup, 0);
+  rb_define_method(klass, "==", Map_eq, 1);
+  rb_define_method(klass, "freeze", Map_freeze, 0);
+  rb_define_method(klass, "frozen?", Map_frozen, 0);
+  rb_define_method(klass, "hash", Map_hash, 0);
+  rb_define_method(klass, "to_h", Map_to_h, 0);
+  rb_define_method(klass, "inspect", Map_inspect, 0);
+  rb_define_method(klass, "merge", Map_merge, 1);
+  rb_include_module(klass, rb_mEnumerable);
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/map.h

@@ -0,0 +1,48 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#ifndef RUBY_PROTOBUF_MAP_H_
+#define RUBY_PROTOBUF_MAP_H_
+
+#include "protobuf.h"
+#include "ruby-upb.h"
+
+// Returns a frozen sentinel Ruby wrapper object for an empty upb_Map with the
+// key and value types specified by the field. Creates one if it doesn't exist.
+VALUE Map_EmptyFrozen(const upb_FieldDef* f);
+
+// Returns a Ruby wrapper object for the given map, which will be created if
+// one does not exist already.
+VALUE Map_GetRubyWrapper(const upb_Map* map, upb_CType key_type,
+                         TypeInfo value_type, VALUE arena);
+
+// Gets the underlying upb_Map for this Ruby map object, which must have
+// key/value type that match |field|. If this is not a map or the type doesn't
+// match, raises an exception.
+const upb_Map* Map_GetUpbMap(VALUE val, const upb_FieldDef* field,
+                             upb_Arena* arena);
+
+// Implements #inspect for this map by appending its contents to |b|.
+void Map_Inspect(StringBuilder* b, const upb_Map* map, upb_CType key_type,
+                 TypeInfo val_type);
+
+// Returns a new Hash object containing the contents of this Map.
+VALUE Map_CreateHash(const upb_Map* map, upb_CType key_type, TypeInfo val_info);
+
+// Returns a deep copy of this Map object.
+VALUE Map_deep_copy(VALUE obj);
+
+// Ruby class of Google::Protobuf::Map.
+extern VALUE cMap;
+
+// Call at startup to register all types in this module.
+void Map_register(VALUE module);
+
+// Recursively freeze map
+VALUE Map_freeze(VALUE _self);
+
+#endif  // RUBY_PROTOBUF_MAP_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/message.h

@@ -0,0 +1,82 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#ifndef RUBY_PROTOBUF_MESSAGE_H_
+#define RUBY_PROTOBUF_MESSAGE_H_
+
+#include "protobuf.h"
+#include "ruby-upb.h"
+
+// Gets the underlying upb_Message* and upb_MessageDef for the given Ruby
+// message wrapper. Requires that |value| is indeed a message object.
+const upb_Message* Message_Get(VALUE value, const upb_MessageDef** m);
+
+// Like Message_Get(), but checks that the object is not frozen and returns a
+// mutable pointer.
+upb_Message* Message_GetMutable(VALUE value, const upb_MessageDef** m);
+
+// Returns the Arena object for this message.
+VALUE Message_GetArena(VALUE value);
+
+// Converts |value| into a upb_Message value of the expected upb_MessageDef
+// type, raising an error if this is not possible. Used when assigning |value|
+// to a field of another message, which means the message must be of a
+// particular type.
+//
+// This will perform automatic conversions in some cases (for example, Time ->
+// Google::Protobuf::Timestamp). If any new message is created, it will be
+// created on |arena|, and any existing message will have its arena fused with
+// |arena|.
+const upb_Message* Message_GetUpbMessage(VALUE value, const upb_MessageDef* m,
+                                         const char* name, upb_Arena* arena);
+
+// Gets or constructs a Ruby wrapper object for the given message. The wrapper
+// object will reference |arena| and ensure that it outlives this object.
+VALUE Message_GetRubyWrapper(const upb_Message* msg, const upb_MessageDef* m,
+                             VALUE arena);
+
+// Gets the given field from this message.
+VALUE Message_getfield(VALUE _self, const upb_FieldDef* f);
+
+// Implements #inspect for this message, printing the text to |b|.
+void Message_PrintMessage(StringBuilder* b, const upb_Message* msg,
+                          const upb_MessageDef* m);
+
+// Returns a hash value for the given message.
+uint64_t Message_Hash(const upb_Message* msg, const upb_MessageDef* m,
+                      uint64_t seed);
+
+// Returns a deep copy of the given message.
+upb_Message* Message_deep_copy(const upb_Message* msg, const upb_MessageDef* m,
+                               upb_Arena* arena);
+
+// Checks that this Ruby object is a message, and raises an exception if not.
+void Message_CheckClass(VALUE klass);
+
+// Returns a new Hash object containing the contents of this message.
+VALUE Scalar_CreateHash(upb_MessageValue val, TypeInfo type_info);
+
+// Creates a message class or enum module for this descriptor, respectively.
+VALUE build_class_from_descriptor(VALUE descriptor);
+VALUE build_module_from_enumdesc(VALUE _enumdesc);
+
+// Returns the Descriptor/EnumDescriptor for the given message class or enum
+// module, respectively. Returns nil if this is not a message class or enum
+// module.
+VALUE MessageOrEnum_GetDescriptor(VALUE klass);
+
+// Decodes a Message from a byte sequence.
+VALUE Message_decode_bytes(size_t size, const char* bytes, int options,
+                           VALUE klass, bool freeze);
+
+// Recursively freeze message
+VALUE Message_freeze(VALUE _self);
+
+// Call at startup to register all types in this module.
+void Message_register(VALUE protobuf);
+
+#endif  // RUBY_PROTOBUF_MESSAGE_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/protobuf.c

@@ -0,0 +1,357 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2014 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#include "protobuf.h"
+
+#include "defs.h"
+#include "map.h"
+#include "message.h"
+#include "repeated_field.h"
+
+VALUE cParseError;
+VALUE cTypeError;
+
+const upb_FieldDef* map_field_key(const upb_FieldDef* field) {
+  const upb_MessageDef* entry = upb_FieldDef_MessageSubDef(field);
+  return upb_MessageDef_FindFieldByNumber(entry, 1);
+}
+
+const upb_FieldDef* map_field_value(const upb_FieldDef* field) {
+  const upb_MessageDef* entry = upb_FieldDef_MessageSubDef(field);
+  return upb_MessageDef_FindFieldByNumber(entry, 2);
+}
+
+// -----------------------------------------------------------------------------
+// StringBuilder, for inspect
+// -----------------------------------------------------------------------------
+
+struct StringBuilder {
+  size_t size;
+  size_t cap;
+  char* data;
+};
+
+typedef struct StringBuilder StringBuilder;
+
+static size_t StringBuilder_SizeOf(size_t cap) {
+  return sizeof(StringBuilder) + cap;
+}
+
+StringBuilder* StringBuilder_New() {
+  const size_t cap = 128;
+  StringBuilder* builder = malloc(sizeof(*builder));
+  builder->size = 0;
+  builder->cap = cap;
+  builder->data = malloc(builder->cap);
+  return builder;
+}
+
+void StringBuilder_Free(StringBuilder* b) {
+  free(b->data);
+  free(b);
+}
+
+void StringBuilder_Printf(StringBuilder* b, const char* fmt, ...) {
+  size_t have = b->cap - b->size;
+  size_t n;
+  va_list args;
+
+  va_start(args, fmt);
+  n = vsnprintf(&b->data[b->size], have, fmt, args);
+  va_end(args);
+
+  if (have <= n) {
+    while (have <= n) {
+      b->cap *= 2;
+      have = b->cap - b->size;
+    }
+    b->data = realloc(b->data, StringBuilder_SizeOf(b->cap));
+    va_start(args, fmt);
+    n = vsnprintf(&b->data[b->size], have, fmt, args);
+    va_end(args);
+    PBRUBY_ASSERT(n < have);
+  }
+
+  b->size += n;
+}
+
+VALUE StringBuilder_ToRubyString(StringBuilder* b) {
+  VALUE ret = rb_str_new(b->data, b->size);
+  rb_enc_associate(ret, rb_utf8_encoding());
+  return ret;
+}
+
+static void StringBuilder_PrintEnum(StringBuilder* b, int32_t val,
+                                    const upb_EnumDef* e) {
+  const upb_EnumValueDef* ev = upb_EnumDef_FindValueByNumber(e, val);
+  if (ev) {
+    StringBuilder_Printf(b, ":%s", upb_EnumValueDef_Name(ev));
+  } else {
+    StringBuilder_Printf(b, "%" PRId32, val);
+  }
+}
+
+void StringBuilder_PrintMsgval(StringBuilder* b, upb_MessageValue val,
+                               TypeInfo info) {
+  switch (info.type) {
+    case kUpb_CType_Bool:
+      StringBuilder_Printf(b, "%s", val.bool_val ? "true" : "false");
+      break;
+    case kUpb_CType_Float: {
+      VALUE str = rb_inspect(DBL2NUM(val.float_val));
+      StringBuilder_Printf(b, "%s", RSTRING_PTR(str));
+      break;
+    }
+    case kUpb_CType_Double: {
+      VALUE str = rb_inspect(DBL2NUM(val.double_val));
+      StringBuilder_Printf(b, "%s", RSTRING_PTR(str));
+      break;
+    }
+    case kUpb_CType_Int32:
+      StringBuilder_Printf(b, "%" PRId32, val.int32_val);
+      break;
+    case kUpb_CType_UInt32:
+      StringBuilder_Printf(b, "%" PRIu32, val.uint32_val);
+      break;
+    case kUpb_CType_Int64:
+      StringBuilder_Printf(b, "%" PRId64, val.int64_val);
+      break;
+    case kUpb_CType_UInt64:
+      StringBuilder_Printf(b, "%" PRIu64, val.uint64_val);
+      break;
+    case kUpb_CType_String:
+      StringBuilder_Printf(b, "\"%.*s\"", (int)val.str_val.size,
+                           val.str_val.data);
+      break;
+    case kUpb_CType_Bytes:
+      StringBuilder_Printf(b, "\"%.*s\"", (int)val.str_val.size,
+                           val.str_val.data);
+      break;
+    case kUpb_CType_Enum:
+      StringBuilder_PrintEnum(b, val.int32_val, info.def.enumdef);
+      break;
+    case kUpb_CType_Message:
+      Message_PrintMessage(b, val.msg_val, info.def.msgdef);
+      break;
+  }
+}
+
+// -----------------------------------------------------------------------------
+// Arena
+// -----------------------------------------------------------------------------
+
+typedef struct {
+  upb_Arena* arena;
+  // IMPORTANT: WB_PROTECTED objects must only use the RB_OBJ_WRITE()
+  // macro to update VALUE references, as to trigger write barriers.
+  VALUE pinned_objs;
+} Arena;
+
+static void Arena_mark(void* data) {
+  Arena* arena = data;
+  rb_gc_mark(arena->pinned_objs);
+}
+
+static void Arena_free(void* data) {
+  Arena* arena = data;
+  upb_Arena_Free(arena->arena);
+  xfree(arena);
+}
+
+static size_t Arena_memsize(const void* data) {
+  const Arena* arena = data;
+  size_t fused_count;
+  size_t memsize = upb_Arena_SpaceAllocated(arena->arena, &fused_count);
+  if (fused_count > 1) {
+    // If other arena were fused we attribute an equal
+    // share of memory usage to each one.
+    memsize /= fused_count;
+  }
+  return memsize + sizeof(Arena);
+}
+
+static VALUE cArena;
+
+const rb_data_type_t Arena_type = {
+    "Google::Protobuf::Internal::Arena",
+    {Arena_mark, Arena_free, Arena_memsize},
+    .flags = RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED,
+};
+
+static void* ruby_upb_allocfunc(upb_alloc* alloc, void* ptr, size_t oldsize,
+                                size_t size, size_t* actual_size) {
+  if (size == 0) {
+    xfree(ptr);
+    return NULL;
+  } else {
+    return xrealloc(ptr, size);
+  }
+}
+
+upb_alloc ruby_upb_alloc = {&ruby_upb_allocfunc};
+
+static VALUE Arena_alloc(VALUE klass) {
+  Arena* arena = ALLOC(Arena);
+  arena->arena = upb_Arena_Init(NULL, 0, &ruby_upb_alloc);
+  arena->pinned_objs = Qnil;
+  return TypedData_Wrap_Struct(klass, &Arena_type, arena);
+}
+
+upb_Arena* Arena_get(VALUE _arena) {
+  Arena* arena;
+  TypedData_Get_Struct(_arena, Arena, &Arena_type, arena);
+  return arena->arena;
+}
+
+void Arena_fuse(VALUE _arena, upb_Arena* other) {
+  Arena* arena;
+  TypedData_Get_Struct(_arena, Arena, &Arena_type, arena);
+  if (!upb_Arena_Fuse(arena->arena, other)) {
+    rb_raise(rb_eRuntimeError,
+             "Unable to fuse arenas. This should never happen since Ruby does "
+             "not use initial blocks");
+  }
+}
+
+VALUE Arena_new() { return Arena_alloc(cArena); }
+
+void Arena_register(VALUE module) {
+  VALUE internal = rb_define_module_under(module, "Internal");
+  VALUE klass = rb_define_class_under(internal, "Arena", rb_cObject);
+  rb_define_alloc_func(klass, Arena_alloc);
+  rb_gc_register_address(&cArena);
+  cArena = klass;
+}
+
+// -----------------------------------------------------------------------------
+// Object Cache
+// -----------------------------------------------------------------------------
+
+// Public ObjectCache API.
+
+VALUE weak_obj_cache = Qnil;
+ID item_get;
+ID item_try_add;
+
+static void ObjectCache_Init(VALUE protobuf) {
+  item_get = rb_intern("get");
+  item_try_add = rb_intern("try_add");
+
+  rb_gc_register_address(&weak_obj_cache);
+  VALUE internal = rb_const_get(protobuf, rb_intern("Internal"));
+#if SIZEOF_LONG >= SIZEOF_VALUE
+  VALUE cache_class = rb_const_get(internal, rb_intern("ObjectCache"));
+#else
+  VALUE cache_class = rb_const_get(internal, rb_intern("LegacyObjectCache"));
+#endif
+
+  weak_obj_cache = rb_class_new_instance(0, NULL, cache_class);
+  rb_const_set(internal, rb_intern("OBJECT_CACHE"), weak_obj_cache);
+  rb_const_set(internal, rb_intern("SIZEOF_LONG"), INT2NUM(SIZEOF_LONG));
+  rb_const_set(internal, rb_intern("SIZEOF_VALUE"), INT2NUM(SIZEOF_VALUE));
+}
+
+static VALUE ObjectCache_GetKey(const void* key) {
+  VALUE key_val = (VALUE)key;
+  PBRUBY_ASSERT((key_val & 3) == 0);
+  // Ensure the key can be stored as a Fixnum since 1 bit is needed for
+  // FIXNUM_FLAG and 1 bit is needed for the sign bit.
+  VALUE new_key = LL2NUM(key_val >> 2);
+  PBRUBY_ASSERT(FIXNUM_P(new_key));
+  return new_key;
+}
+
+VALUE ObjectCache_TryAdd(const void* key, VALUE val) {
+  VALUE key_val = ObjectCache_GetKey(key);
+  return rb_funcall(weak_obj_cache, item_try_add, 2, key_val, val);
+}
+
+// Returns the cached object for this key, if any. Otherwise returns Qnil.
+VALUE ObjectCache_Get(const void* key) {
+  VALUE key_val = ObjectCache_GetKey(key);
+  return rb_funcall(weak_obj_cache, item_get, 1, key_val);
+}
+
+/*
+ * call-seq:
+ *     Google::Protobuf.discard_unknown(msg)
+ *
+ * Discard unknown fields in the given message object and recursively discard
+ * unknown fields in submessages.
+ */
+static VALUE Google_Protobuf_discard_unknown(VALUE self, VALUE msg_rb) {
+  const upb_MessageDef* m;
+  upb_Message* msg = Message_GetMutable(msg_rb, &m);
+  const upb_DefPool* ext_pool = upb_FileDef_Pool(upb_MessageDef_File(m));
+  if (!upb_Message_DiscardUnknown(msg, m, ext_pool, 128)) {
+    rb_raise(rb_eRuntimeError, "Messages nested too deeply.");
+  }
+
+  return Qnil;
+}
+
+/*
+ * call-seq:
+ *     Google::Protobuf.deep_copy(obj) => copy_of_obj
+ *
+ * Performs a deep copy of a RepeatedField instance, a Map instance, or a
+ * message object, recursively copying its members.
+ */
+VALUE Google_Protobuf_deep_copy(VALUE self, VALUE obj) {
+  VALUE klass = CLASS_OF(obj);
+  if (klass == cRepeatedField) {
+    return RepeatedField_deep_copy(obj);
+  } else if (klass == cMap) {
+    return Map_deep_copy(obj);
+  } else {
+    VALUE new_arena_rb = Arena_new();
+    upb_Arena* new_arena = Arena_get(new_arena_rb);
+    const upb_MessageDef* m;
+    const upb_Message* msg = Message_Get(obj, &m);
+    upb_Message* new_msg = Message_deep_copy(msg, m, new_arena);
+    return Message_GetRubyWrapper(new_msg, m, new_arena_rb);
+  }
+}
+
+// -----------------------------------------------------------------------------
+// Initialization/entry point.
+// -----------------------------------------------------------------------------
+
+// This must be named "Init_protobuf_c" because the Ruby module is named
+// "protobuf_c" -- the VM looks for this symbol in our .so.
+__attribute__((visibility("default"))) void Init_protobuf_c() {
+  VALUE google = rb_define_module("Google");
+  VALUE protobuf = rb_define_module_under(google, "Protobuf");
+
+  ObjectCache_Init(protobuf);
+  Arena_register(protobuf);
+  Defs_register(protobuf);
+  RepeatedField_register(protobuf);
+  Map_register(protobuf);
+  Message_register(protobuf);
+
+  cParseError = rb_const_get(protobuf, rb_intern("ParseError"));
+  rb_gc_register_mark_object(cParseError);
+  cTypeError = rb_const_get(protobuf, rb_intern("TypeError"));
+  rb_gc_register_mark_object(cTypeError);
+
+  rb_define_singleton_method(protobuf, "discard_unknown",
+                             Google_Protobuf_discard_unknown, 1);
+  rb_define_singleton_method(protobuf, "deep_copy", Google_Protobuf_deep_copy,
+                             1);
+}
+
+// -----------------------------------------------------------------------------
+// Utilities
+// -----------------------------------------------------------------------------
+
+// Raises a Ruby error if val is frozen in Ruby or UPB.
+void Protobuf_CheckNotFrozen(VALUE val, bool upb_frozen) {
+  if (RB_UNLIKELY(rb_obj_frozen_p(val) || upb_frozen)) {
+    rb_error_frozen_object(val);
+  }
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/protobuf.h

@@ -0,0 +1,100 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2014 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#ifndef __GOOGLE_PROTOBUF_RUBY_PROTOBUF_H__
+#define __GOOGLE_PROTOBUF_RUBY_PROTOBUF_H__
+
+// Ruby 3+ defines NDEBUG itself, see: https://bugs.ruby-lang.org/issues/18777
+#ifdef NDEBUG
+#include <ruby.h>
+#else
+#include <ruby.h>
+#undef NDEBUG
+#endif
+
+#include <assert.h>  // Must be included after the NDEBUG logic above.
+#include <ruby/encoding.h>
+#include <ruby/vm.h>
+
+#include "defs.h"
+#include "ruby-upb.h"
+
+// These operate on a map field (i.e., a repeated field of submessages whose
+// submessage type is a map-entry msgdef).
+const upb_FieldDef* map_field_key(const upb_FieldDef* field);
+const upb_FieldDef* map_field_value(const upb_FieldDef* field);
+
+// -----------------------------------------------------------------------------
+// Arena
+// -----------------------------------------------------------------------------
+
+// A Ruby object that wraps an underlying upb_Arena.  Any objects that are
+// allocated from this arena should reference the Arena in rb_gc_mark(), to
+// ensure that the object's underlying memory outlives any Ruby object that can
+// reach it.
+
+VALUE Arena_new();
+upb_Arena* Arena_get(VALUE arena);
+
+// Fuses this arena to another, throwing a Ruby exception if this is not
+// possible.
+void Arena_fuse(VALUE arena, upb_Arena* other);
+
+// -----------------------------------------------------------------------------
+// ObjectCache
+// -----------------------------------------------------------------------------
+
+// Global object cache from upb array/map/message/symtab to wrapper object.
+//
+// This is a conceptually "weak" cache, in that it does not prevent "val" from
+// being collected (though in Ruby <2.7 is it effectively strong, due to
+// implementation limitations).
+
+// Tries to add a new entry to the cache, returning the newly installed value or
+// the pre-existing entry.
+VALUE ObjectCache_TryAdd(const void* key, VALUE val);
+
+// Returns the cached object for this key, if any. Otherwise returns Qnil.
+VALUE ObjectCache_Get(const void* key);
+
+// -----------------------------------------------------------------------------
+// StringBuilder, for inspect
+// -----------------------------------------------------------------------------
+
+struct StringBuilder;
+typedef struct StringBuilder StringBuilder;
+
+StringBuilder* StringBuilder_New();
+void StringBuilder_Free(StringBuilder* b);
+void StringBuilder_Printf(StringBuilder* b, const char* fmt, ...);
+VALUE StringBuilder_ToRubyString(StringBuilder* b);
+
+void StringBuilder_PrintMsgval(StringBuilder* b, upb_MessageValue val,
+                               TypeInfo info);
+
+// -----------------------------------------------------------------------------
+// Utilities.
+// -----------------------------------------------------------------------------
+
+extern VALUE cTypeError;
+
+#ifdef NDEBUG
+#define PBRUBY_ASSERT(expr) \
+  do {                      \
+  } while (false && (expr))
+#else
+#define PBRUBY_ASSERT(expr) \
+  if (!(expr))              \
+  rb_bug("Assertion failed at %s:%d, expr: %s", __FILE__, __LINE__, #expr)
+#endif
+
+// Raises a Ruby error if val is frozen in Ruby or upb_frozen is true.
+void Protobuf_CheckNotFrozen(VALUE val, bool upb_frozen);
+
+#define PBRUBY_MAX(x, y) (((x) > (y)) ? (x) : (y))
+
+#endif  // __GOOGLE_PROTOBUF_RUBY_PROTOBUF_H__

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/repeated_field.c

@@ -0,0 +1,735 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2014 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#include "repeated_field.h"
+
+#include "convert.h"
+#include "defs.h"
+#include "message.h"
+#include "protobuf.h"
+
+// -----------------------------------------------------------------------------
+// Repeated field container type.
+// -----------------------------------------------------------------------------
+
+typedef struct {
+  const upb_Array* array;  // Can get as mutable when non-frozen.
+  TypeInfo type_info;
+  VALUE type_class;  // To GC-root the msgdef/enumdef in type_info.
+  VALUE arena;       // To GC-root the upb_Array.
+} RepeatedField;
+
+VALUE cRepeatedField;
+
+static void RepeatedField_mark(void* _self) {
+  RepeatedField* self = (RepeatedField*)_self;
+  rb_gc_mark(self->type_class);
+  rb_gc_mark(self->arena);
+}
+
+const rb_data_type_t RepeatedField_type = {
+    "Google::Protobuf::RepeatedField",
+    {RepeatedField_mark, RUBY_DEFAULT_FREE, NULL},
+    .flags = RUBY_TYPED_FREE_IMMEDIATELY,
+};
+
+static RepeatedField* ruby_to_RepeatedField(VALUE _self) {
+  RepeatedField* self;
+  TypedData_Get_Struct(_self, RepeatedField, &RepeatedField_type, self);
+  return self;
+}
+
+static upb_Array* RepeatedField_GetMutable(VALUE _self) {
+  const upb_Array* array = ruby_to_RepeatedField(_self)->array;
+  Protobuf_CheckNotFrozen(_self, upb_Array_IsFrozen(array));
+  return (upb_Array*)array;
+}
+
+VALUE RepeatedField_alloc(VALUE klass) {
+  RepeatedField* self = ALLOC(RepeatedField);
+  self->arena = Qnil;
+  self->type_class = Qnil;
+  self->array = NULL;
+  return TypedData_Wrap_Struct(klass, &RepeatedField_type, self);
+}
+
+VALUE RepeatedField_EmptyFrozen(const upb_FieldDef* f) {
+  PBRUBY_ASSERT(upb_FieldDef_IsRepeated(f));
+  VALUE val = ObjectCache_Get(f);
+
+  if (val == Qnil) {
+    val = RepeatedField_alloc(cRepeatedField);
+    RepeatedField* self;
+    TypedData_Get_Struct(val, RepeatedField, &RepeatedField_type, self);
+    self->arena = Arena_new();
+    TypeInfo type_info = TypeInfo_get(f);
+    self->array = upb_Array_New(Arena_get(self->arena), type_info.type);
+    self->type_info = type_info;
+    if (self->type_info.type == kUpb_CType_Message) {
+      self->type_class = Descriptor_DefToClass(type_info.def.msgdef);
+    }
+    val = ObjectCache_TryAdd(f, RepeatedField_freeze(val));
+  }
+  PBRUBY_ASSERT(RB_OBJ_FROZEN(val));
+  PBRUBY_ASSERT(upb_Array_IsFrozen(ruby_to_RepeatedField(val)->array));
+  return val;
+}
+
+VALUE RepeatedField_GetRubyWrapper(const upb_Array* array, TypeInfo type_info,
+                                   VALUE arena) {
+  PBRUBY_ASSERT(array);
+  PBRUBY_ASSERT(arena != Qnil);
+  VALUE val = ObjectCache_Get(array);
+
+  if (val == Qnil) {
+    val = RepeatedField_alloc(cRepeatedField);
+    RepeatedField* self;
+    TypedData_Get_Struct(val, RepeatedField, &RepeatedField_type, self);
+    self->array = array;
+    self->arena = arena;
+    self->type_info = type_info;
+    if (self->type_info.type == kUpb_CType_Message) {
+      self->type_class = Descriptor_DefToClass(type_info.def.msgdef);
+    }
+    val = ObjectCache_TryAdd(array, val);
+  }
+
+  PBRUBY_ASSERT(ruby_to_RepeatedField(val)->type_info.type == type_info.type);
+  PBRUBY_ASSERT(ruby_to_RepeatedField(val)->type_info.def.msgdef ==
+                type_info.def.msgdef);
+  PBRUBY_ASSERT(ruby_to_RepeatedField(val)->array == array);
+  return val;
+}
+
+static VALUE RepeatedField_new_this_type(RepeatedField* from) {
+  VALUE arena_rb = Arena_new();
+  upb_Array* array = upb_Array_New(Arena_get(arena_rb), from->type_info.type);
+  VALUE ret = RepeatedField_GetRubyWrapper(array, from->type_info, arena_rb);
+  PBRUBY_ASSERT(ruby_to_RepeatedField(ret)->type_class == from->type_class);
+  return ret;
+}
+
+void RepeatedField_Inspect(StringBuilder* b, const upb_Array* array,
+                           TypeInfo info) {
+  bool first = true;
+  StringBuilder_Printf(b, "[");
+  size_t n = array ? upb_Array_Size(array) : 0;
+  for (size_t i = 0; i < n; i++) {
+    if (first) {
+      first = false;
+    } else {
+      StringBuilder_Printf(b, ", ");
+    }
+    StringBuilder_PrintMsgval(b, upb_Array_Get(array, i), info);
+  }
+  StringBuilder_Printf(b, "]");
+}
+
+VALUE RepeatedField_deep_copy(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  VALUE new_rptfield = RepeatedField_new_this_type(self);
+  RepeatedField* new_self = ruby_to_RepeatedField(new_rptfield);
+  VALUE arena_rb = new_self->arena;
+  upb_Array* new_array = RepeatedField_GetMutable(new_rptfield);
+  upb_Arena* arena = Arena_get(arena_rb);
+  size_t elements = upb_Array_Size(self->array);
+
+  upb_Array_Resize(new_array, elements, arena);
+
+  size_t size = upb_Array_Size(self->array);
+  for (size_t i = 0; i < size; i++) {
+    upb_MessageValue msgval = upb_Array_Get(self->array, i);
+    upb_MessageValue copy = Msgval_DeepCopy(msgval, self->type_info, arena);
+    upb_Array_Set(new_array, i, copy);
+  }
+
+  return new_rptfield;
+}
+
+const upb_Array* RepeatedField_GetUpbArray(VALUE val, const upb_FieldDef* field,
+                                           upb_Arena* arena) {
+  RepeatedField* self;
+  TypeInfo type_info = TypeInfo_get(field);
+
+  if (!RB_TYPE_P(val, T_DATA) || !RTYPEDDATA_P(val) ||
+      RTYPEDDATA_TYPE(val) != &RepeatedField_type) {
+    rb_raise(cTypeError, "Expected repeated field array");
+  }
+
+  self = ruby_to_RepeatedField(val);
+  if (self->type_info.type != type_info.type) {
+    rb_raise(cTypeError, "Repeated field array has wrong element type");
+  }
+
+  if (self->type_info.def.msgdef != type_info.def.msgdef) {
+    rb_raise(cTypeError, "Repeated field array has wrong message/enum class");
+  }
+
+  Arena_fuse(self->arena, arena);
+  return self->array;
+}
+
+static int index_position(VALUE _index, RepeatedField* repeated_field) {
+  int index = NUM2INT(_index);
+  if (index < 0) index += upb_Array_Size(repeated_field->array);
+  return index;
+}
+
+static VALUE RepeatedField_subarray(RepeatedField* self, long beg, long len) {
+  long size = (long)upb_Array_Size(self->array);
+
+  // Match Ruby Array#[beg, len] semantics and avoid an out-of-bounds read
+  // through upb_Array_Get (which only has a debug-only UPB_ASSERT for
+  // bounds): clamp len to what is actually available, and reject negative
+  // len up front.
+  if (len < 0) return Qnil;
+  if (beg < 0 || beg > size) return Qnil;
+  if (len > size - beg) len = size - beg;
+
+  VALUE ary = rb_ary_new2(len);
+  for (long i = beg; i < beg + len; i++) {
+    upb_MessageValue msgval = upb_Array_Get(self->array, i);
+    VALUE elem = Convert_UpbToRuby(msgval, self->type_info, self->arena);
+    rb_ary_push(ary, elem);
+  }
+  return ary;
+}
+
+/**
+ * ruby-doc: RepeatedField
+ *
+ */
+
+/*
+ * ruby-doc: RepeatedField#each
+ *
+ * Invokes the block once for each element of the repeated field. RepeatedField
+ * also includes Enumerable; combined with this method, the repeated field thus
+ * acts like an ordinary Ruby sequence.
+ *
+ * @yield [Object]
+ * @return [self]
+ */
+static VALUE RepeatedField_each(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  int size = upb_Array_Size(self->array);
+  int i;
+
+  for (i = 0; i < size; i++) {
+    upb_MessageValue msgval = upb_Array_Get(self->array, i);
+    VALUE val = Convert_UpbToRuby(msgval, self->type_info, self->arena);
+    rb_yield(val);
+  }
+  return _self;
+}
+
+/*
+ * ruby-doc: RepeatedField#[]
+ *
+ * Accesses the element at the given index. Returns nil on out-of-bounds
+ *
+ * @param index [Integer]
+ * @return [Object,nil]
+ */
+static VALUE RepeatedField_index(int argc, VALUE* argv, VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  long size = upb_Array_Size(self->array);
+
+  VALUE arg = argv[0];
+  long beg, len;
+
+  if (argc == 1) {
+    if (FIXNUM_P(arg)) {
+      /* standard case */
+      upb_MessageValue msgval;
+      int index = index_position(argv[0], self);
+      if (index < 0 || (size_t)index >= upb_Array_Size(self->array)) {
+        return Qnil;
+      }
+      msgval = upb_Array_Get(self->array, index);
+      return Convert_UpbToRuby(msgval, self->type_info, self->arena);
+    } else {
+      /* check if idx is Range */
+      switch (rb_range_beg_len(arg, &beg, &len, size, 0)) {
+        case Qfalse:
+          break;
+        case Qnil:
+          return Qnil;
+        default:
+          return RepeatedField_subarray(self, beg, len);
+      }
+    }
+  }
+
+  /* assume 2 arguments */
+  beg = NUM2LONG(argv[0]);
+  len = NUM2LONG(argv[1]);
+  if (beg < 0) {
+    beg += size;
+  }
+  if (beg > size) {
+    return Qnil;
+  }
+  return RepeatedField_subarray(self, beg, len);
+}
+
+/*
+ * ruby-doc: RepeatedField#[]=
+ *
+ * Sets the element at the given index. On out-of-bounds assignments, extends
+ * the array and fills the hole (if any) with default values.
+ *
+ * @param index [Integer]
+ * @param value [Object
+ * @return [nil]
+ */
+static VALUE RepeatedField_index_set(VALUE _self, VALUE _index, VALUE val) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  int size = upb_Array_Size(self->array);
+  upb_Array* array = RepeatedField_GetMutable(_self);
+  upb_Arena* arena = Arena_get(self->arena);
+  upb_MessageValue msgval = Convert_RubyToUpb(val, "", self->type_info, arena);
+
+  int index = index_position(_index, self);
+  if (index < 0 || index >= (INT_MAX - 1)) {
+    return Qnil;
+  }
+
+  if (index >= size) {
+    upb_Array_Resize(array, index + 1, arena);
+    upb_MessageValue fill;
+    memset(&fill, 0, sizeof(fill));
+    for (int i = size; i < index; i++) {
+      // Fill default values.
+      // TODO: should this happen at the upb level?
+      upb_Array_Set(array, i, fill);
+    }
+  }
+
+  upb_Array_Set(array, index, msgval);
+  return Qnil;
+}
+
+/*
+ * ruby-doc: RepeatedField#push
+ *
+ * Adds a new element to the repeated field.
+ *
+ * @param value [Object]
+ * @return [self]
+ */
+static VALUE RepeatedField_push_vararg(int argc, VALUE* argv, VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  upb_Arena* arena = Arena_get(self->arena);
+  upb_Array* array = RepeatedField_GetMutable(_self);
+  int i;
+
+  for (i = 0; i < argc; i++) {
+    upb_MessageValue msgval =
+        Convert_RubyToUpb(argv[i], "", self->type_info, arena);
+    upb_Array_Append(array, msgval, arena);
+  }
+
+  return _self;
+}
+
+/*
+ * ruby-doc: RepeatedField#<<
+ *
+ * Adds a new element to the repeated field.
+ *
+ * @param value [Object]
+ * @return [self]
+ */
+static VALUE RepeatedField_push(VALUE _self, VALUE val) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  upb_Arena* arena = Arena_get(self->arena);
+  upb_Array* array = RepeatedField_GetMutable(_self);
+
+  upb_MessageValue msgval = Convert_RubyToUpb(val, "", self->type_info, arena);
+  upb_Array_Append(array, msgval, arena);
+
+  return _self;
+}
+
+/*
+ * Private ruby method, used by RepeatedField.pop
+ */
+static VALUE RepeatedField_pop_one(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  size_t size = upb_Array_Size(self->array);
+  upb_Array* array = RepeatedField_GetMutable(_self);
+  upb_MessageValue last;
+  VALUE ret;
+
+  if (size == 0) {
+    return Qnil;
+  }
+
+  last = upb_Array_Get(self->array, size - 1);
+  ret = Convert_UpbToRuby(last, self->type_info, self->arena);
+
+  upb_Array_Resize(array, size - 1, Arena_get(self->arena));
+  return ret;
+}
+
+/*
+ * ruby-doc: RepeatedField#replace
+ *
+ * Replaces the contents of the repeated field with the given list of elements.
+ *
+ * @param list [Array]
+ * @return [Array]
+ */
+static VALUE RepeatedField_replace(VALUE _self, VALUE list) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  upb_Array* array = RepeatedField_GetMutable(_self);
+  int i;
+
+  Check_Type(list, T_ARRAY);
+  upb_Array_Resize(array, 0, Arena_get(self->arena));
+
+  for (i = 0; i < RARRAY_LEN(list); i++) {
+    RepeatedField_push(_self, rb_ary_entry(list, i));
+  }
+
+  return list;
+}
+
+/*
+ * ruby-doc: RepeatedField#clear
+ *
+ * Clears (removes all elements from) this repeated field.
+ *
+ * @return [self]
+ */
+static VALUE RepeatedField_clear(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  upb_Array* array = RepeatedField_GetMutable(_self);
+  upb_Array_Resize(array, 0, Arena_get(self->arena));
+  return _self;
+}
+
+/*
+ * ruby-doc: RepeatedField#length
+ *
+ * Returns the length of this repeated field.
+ *
+ * @return [Integer]
+ */
+static VALUE RepeatedField_length(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  return INT2NUM(upb_Array_Size(self->array));
+}
+
+/*
+ * ruby-doc: RepeatedField#dup
+ *
+ * Duplicates this repeated field with a shallow copy. References to all
+ * non-primitive element objects (e.g., submessages) are shared.
+ *
+ * @return [RepeatedField]
+ */
+static VALUE RepeatedField_dup(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  VALUE new_rptfield = RepeatedField_new_this_type(self);
+  RepeatedField* new_rptfield_self = ruby_to_RepeatedField(new_rptfield);
+  upb_Array* new_array = RepeatedField_GetMutable(new_rptfield);
+  upb_Arena* arena = Arena_get(new_rptfield_self->arena);
+  int size = upb_Array_Size(self->array);
+  int i;
+
+  Arena_fuse(self->arena, arena);
+
+  for (i = 0; i < size; i++) {
+    upb_MessageValue msgval = upb_Array_Get(self->array, i);
+    upb_Array_Append(new_array, msgval, arena);
+  }
+
+  return new_rptfield;
+}
+
+/*
+ * ruby-doc: RepeatedField#to_ary
+ *
+ * Used when converted implicitly into array, e.g. compared to an Array.
+ * Also called as a fallback of Object#to_a
+ *
+ * @return [Array]
+ */
+VALUE RepeatedField_to_ary(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  int size = upb_Array_Size(self->array);
+  VALUE ary = rb_ary_new2(size);
+  int i;
+
+  for (i = 0; i < size; i++) {
+    upb_MessageValue msgval = upb_Array_Get(self->array, i);
+    VALUE val = Convert_UpbToRuby(msgval, self->type_info, self->arena);
+    rb_ary_push(ary, val);
+  }
+
+  return ary;
+}
+
+/*
+ * ruby-doc: RepeatedField#==
+ *
+ * Compares this repeated field to another. Repeated fields are equal if their
+ * element types are equal, their lengths are equal, and each element is equal.
+ * Elements are compared as per normal Ruby semantics, by calling their :==
+ * methods (or performing a more efficient comparison for primitive types).
+ *
+ * Repeated fields with dissimilar element types are never equal, even if value
+ * comparison (for example, between integers and floats) would have otherwise
+ * indicated that every element has equal value.
+ *
+ * @param other [RepeatedField]
+ * @return [Boolean]
+ */
+VALUE RepeatedField_eq(VALUE _self, VALUE _other) {
+  RepeatedField* self;
+  RepeatedField* other;
+
+  if (_self == _other) {
+    return Qtrue;
+  }
+
+  if (TYPE(_other) == T_ARRAY) {
+    VALUE self_ary = RepeatedField_to_ary(_self);
+    return rb_equal(self_ary, _other);
+  }
+
+  self = ruby_to_RepeatedField(_self);
+  other = ruby_to_RepeatedField(_other);
+  size_t n = upb_Array_Size(self->array);
+
+  if (self->type_info.type != other->type_info.type ||
+      self->type_class != other->type_class ||
+      upb_Array_Size(other->array) != n) {
+    return Qfalse;
+  }
+
+  for (size_t i = 0; i < n; i++) {
+    upb_MessageValue val1 = upb_Array_Get(self->array, i);
+    upb_MessageValue val2 = upb_Array_Get(other->array, i);
+    if (!Msgval_IsEqual(val1, val2, self->type_info)) {
+      return Qfalse;
+    }
+  }
+
+  return Qtrue;
+}
+
+/*
+ * ruby-doc: RepeatedField#frozen?
+ *
+ * Returns true if the repeated field is frozen in either Ruby or the underlying
+ * representation. Freezes the Ruby repeated field object if it is not already
+ * frozen in Ruby but it is frozen in the underlying representation.
+ *
+ * @return [Boolean]
+ */
+VALUE RepeatedField_frozen(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  if (!upb_Array_IsFrozen(self->array)) {
+    PBRUBY_ASSERT(!RB_OBJ_FROZEN(_self));
+    return Qfalse;
+  }
+
+  // Lazily freeze the Ruby wrapper.
+  if (!RB_OBJ_FROZEN(_self)) RB_OBJ_FREEZE(_self);
+  return Qtrue;
+}
+
+/*
+ * ruby-doc: RepeatedField#freeze
+ *
+ * Freezes the repeated field object. We have to intercept this so we can freeze
+ * the underlying representation, not just the Ruby wrapper.
+ *
+ * @return [self]
+ */
+VALUE RepeatedField_freeze(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  if (RB_OBJ_FROZEN(_self)) {
+    PBRUBY_ASSERT(upb_Array_IsFrozen(self->array));
+    return _self;
+  }
+
+  if (!upb_Array_IsFrozen(self->array)) {
+    if (self->type_info.type == kUpb_CType_Message) {
+      upb_Array_Freeze(RepeatedField_GetMutable(_self),
+                       upb_MessageDef_MiniTable(self->type_info.def.msgdef));
+    } else {
+      upb_Array_Freeze(RepeatedField_GetMutable(_self), NULL);
+    }
+  }
+  RB_OBJ_FREEZE(_self);
+  return _self;
+}
+
+/*
+ * ruby-doc: RepeatedField#hash
+ *
+ * Returns a hash value computed from this repeated field's elements.
+ *
+ * @return [Integer]
+ */
+VALUE RepeatedField_hash(VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  uint64_t hash = 0;
+  size_t n = upb_Array_Size(self->array);
+
+  for (size_t i = 0; i < n; i++) {
+    upb_MessageValue val = upb_Array_Get(self->array, i);
+    hash = Msgval_GetHash(val, self->type_info, hash);
+  }
+
+  return LL2NUM(hash);
+}
+
+/*
+ * ruby-doc: RepeatedField#+
+ *
+ * Returns a new repeated field that contains the concatenated list of this
+ * repeated field's elements and other's elements. The other (second) list may
+ * be either another repeated field or a Ruby array.
+ *
+ * @param other [Array,RepeatedField]
+ * @return [RepeatedField]
+ */
+VALUE RepeatedField_plus(VALUE _self, VALUE list) {
+  VALUE dupped_ = RepeatedField_dup(_self);
+
+  if (TYPE(list) == T_ARRAY) {
+    int i;
+    for (i = 0; i < RARRAY_LEN(list); i++) {
+      VALUE elem = rb_ary_entry(list, i);
+      RepeatedField_push(dupped_, elem);
+    }
+  } else if (RB_TYPE_P(list, T_DATA) && RTYPEDDATA_P(list) &&
+             RTYPEDDATA_TYPE(list) == &RepeatedField_type) {
+    RepeatedField* self = ruby_to_RepeatedField(_self);
+    RepeatedField* list_rptfield = ruby_to_RepeatedField(list);
+    RepeatedField* dupped = ruby_to_RepeatedField(dupped_);
+    upb_Array* dupped_array = RepeatedField_GetMutable(dupped_);
+    upb_Arena* arena = Arena_get(dupped->arena);
+    Arena_fuse(list_rptfield->arena, arena);
+    int size = upb_Array_Size(list_rptfield->array);
+    int i;
+
+    if (self->type_info.type != list_rptfield->type_info.type ||
+        self->type_class != list_rptfield->type_class) {
+      rb_raise(rb_eArgError,
+               "Attempt to append RepeatedField with different element type.");
+    }
+
+    for (i = 0; i < size; i++) {
+      upb_MessageValue msgval = upb_Array_Get(list_rptfield->array, i);
+      upb_Array_Append(dupped_array, msgval, arena);
+    }
+  } else {
+    rb_raise(rb_eArgError, "Unknown type appending to RepeatedField");
+  }
+
+  return dupped_;
+}
+
+/*
+ * ruby-doc: RepeatedField#concat
+ *
+ * concats the passed in array to self.  Returns a Ruby array.
+ *
+ * @param other [RepeatedField]
+ * @return [Array]
+ */
+VALUE RepeatedField_concat(VALUE _self, VALUE list) {
+  int i;
+
+  Check_Type(list, T_ARRAY);
+  for (i = 0; i < RARRAY_LEN(list); i++) {
+    RepeatedField_push(_self, rb_ary_entry(list, i));
+  }
+  return _self;
+}
+
+/*
+ * ruby-doc: RepeatedField#initialize
+ *
+ * Creates a new repeated field. The provided type must be a Ruby symbol, and
+ * can take on the same values as those accepted by {FieldDescriptor#type=}. If
+ * the type is :message or :enum, type_class must be non-nil, and must be the
+ * Ruby class or module returned by {Descriptor#msgclass} or
+ * {EnumDescriptor#enummodule}, respectively. An initial list of elements may
+ * also be provided.
+ *
+ * @param type [Symbol]
+ * @param type_class [Class<AbstractMessage>, Module]
+ * @paramdefault type_class nil
+ * @param initial_elems [Array]
+ * @paramdefault initial_elems []
+ * @return [RepeatedField]
+ */
+VALUE RepeatedField_init(int argc, VALUE* argv, VALUE _self) {
+  RepeatedField* self = ruby_to_RepeatedField(_self);
+  upb_Arena* arena;
+  VALUE ary = Qnil;
+
+  self->arena = Arena_new();
+  arena = Arena_get(self->arena);
+
+  if (argc < 1) {
+    rb_raise(rb_eArgError, "Expected at least 1 argument.");
+  }
+
+  self->type_info = TypeInfo_FromClass(argc, argv, 0, &self->type_class, &ary);
+  self->array = upb_Array_New(arena, self->type_info.type);
+  VALUE stored_val = ObjectCache_TryAdd(self->array, _self);
+  PBRUBY_ASSERT(stored_val == _self);
+
+  if (ary != Qnil) {
+    if (!RB_TYPE_P(ary, T_ARRAY)) {
+      rb_raise(rb_eArgError, "Expected array as initialize argument");
+    }
+    for (int i = 0; i < RARRAY_LEN(ary); i++) {
+      RepeatedField_push(_self, rb_ary_entry(ary, i));
+    }
+  }
+  return Qnil;
+}
+
+void RepeatedField_register(VALUE module) {
+  VALUE klass = rb_define_class_under(module, "RepeatedField", rb_cObject);
+  rb_define_alloc_func(klass, RepeatedField_alloc);
+  rb_gc_register_address(&cRepeatedField);
+  cRepeatedField = klass;
+
+  rb_define_method(klass, "initialize", RepeatedField_init, -1);
+  rb_define_method(klass, "each", RepeatedField_each, 0);
+  rb_define_method(klass, "[]", RepeatedField_index, -1);
+  rb_define_method(klass, "at", RepeatedField_index, -1);
+  rb_define_method(klass, "[]=", RepeatedField_index_set, 2);
+  rb_define_method(klass, "push", RepeatedField_push_vararg, -1);
+  rb_define_method(klass, "<<", RepeatedField_push, 1);
+  rb_define_private_method(klass, "pop_one", RepeatedField_pop_one, 0);
+  rb_define_method(klass, "replace", RepeatedField_replace, 1);
+  rb_define_method(klass, "clear", RepeatedField_clear, 0);
+  rb_define_method(klass, "length", RepeatedField_length, 0);
+  rb_define_method(klass, "size", RepeatedField_length, 0);
+  rb_define_method(klass, "dup", RepeatedField_dup, 0);
+  // Also define #clone so that we don't inherit Object#clone.
+  rb_define_method(klass, "clone", RepeatedField_dup, 0);
+  rb_define_method(klass, "==", RepeatedField_eq, 1);
+  rb_define_method(klass, "to_ary", RepeatedField_to_ary, 0);
+  rb_define_method(klass, "freeze", RepeatedField_freeze, 0);
+  rb_define_method(klass, "frozen?", RepeatedField_frozen, 0);
+  rb_define_method(klass, "hash", RepeatedField_hash, 0);
+  rb_define_method(klass, "+", RepeatedField_plus, 1);
+  rb_define_method(klass, "concat", RepeatedField_concat, 1);
+  rb_include_module(klass, rb_mEnumerable);
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/repeated_field.h

@@ -0,0 +1,45 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+#ifndef RUBY_PROTOBUF_REPEATED_FIELD_H_
+#define RUBY_PROTOBUF_REPEATED_FIELD_H_
+
+#include "protobuf.h"
+#include "ruby-upb.h"
+
+// Returns a frozen sentinel Ruby wrapper object for an empty upb_Array of the
+// type specified by the field. Creates one if it doesn't exist.
+VALUE RepeatedField_EmptyFrozen(const upb_FieldDef* f);
+
+// Returns a Ruby wrapper object for the given upb_Array, which will be created
+// if one does not exist already.
+VALUE RepeatedField_GetRubyWrapper(const upb_Array* msg, TypeInfo type_info,
+                                   VALUE arena);
+
+// Gets the underlying upb_Array for this Ruby RepeatedField object, which must
+// have a type that matches |f|. If this is not a repeated field or the type
+// doesn't match, raises an exception.
+const upb_Array* RepeatedField_GetUpbArray(VALUE value, const upb_FieldDef* f,
+                                           upb_Arena* arena);
+
+// Implements #inspect for this repeated field by appending its contents to |b|.
+void RepeatedField_Inspect(StringBuilder* b, const upb_Array* array,
+                           TypeInfo info);
+
+// Returns a deep copy of this RepeatedField object.
+VALUE RepeatedField_deep_copy(VALUE obj);
+
+// Ruby class of Google::Protobuf::RepeatedField.
+extern VALUE cRepeatedField;
+
+// Call at startup to register all types in this module.
+void RepeatedField_register(VALUE module);
+
+// Recursively freeze RepeatedField.
+VALUE RepeatedField_freeze(VALUE _self);
+
+#endif  // RUBY_PROTOBUF_REPEATED_FIELD_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/shared_convert.c

@@ -0,0 +1,69 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2023 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+// -----------------------------------------------------------------------------
+// Ruby <-> upb data conversion functions. Strictly free of dependencies on
+// Ruby interpreter internals.
+
+#include "shared_convert.h"
+
+bool shared_Msgval_IsEqual(upb_MessageValue val1, upb_MessageValue val2,
+                           upb_CType type, const upb_MessageDef* msgdef,
+                           upb_Status* status) {
+  switch (type) {
+    case kUpb_CType_Bool:
+      return memcmp(&val1, &val2, 1) == 0;
+    case kUpb_CType_Float:
+    case kUpb_CType_Int32:
+    case kUpb_CType_UInt32:
+    case kUpb_CType_Enum:
+      return memcmp(&val1, &val2, 4) == 0;
+    case kUpb_CType_Double:
+    case kUpb_CType_Int64:
+    case kUpb_CType_UInt64:
+      return memcmp(&val1, &val2, 8) == 0;
+    case kUpb_CType_String:
+    case kUpb_CType_Bytes:
+      return val1.str_val.size == val2.str_val.size &&
+             memcmp(val1.str_val.data, val2.str_val.data, val1.str_val.size) ==
+                 0;
+    case kUpb_CType_Message: {
+      const upb_MiniTable* m = upb_MessageDef_MiniTable(msgdef);
+      const int options = 0;
+      return upb_Message_IsEqual(val1.msg_val, val2.msg_val, m, options);
+    }
+    default:
+      upb_Status_SetErrorMessage(status, "Internal error, unexpected type");
+      return false;
+  }
+}
+
+uint64_t shared_Msgval_GetHash(upb_MessageValue val, upb_CType type,
+                               const upb_MessageDef* msgdef, uint64_t seed,
+                               upb_Status* status) {
+  switch (type) {
+    case kUpb_CType_Bool:
+      return _upb_Hash(&val, 1, seed);
+    case kUpb_CType_Float:
+    case kUpb_CType_Int32:
+    case kUpb_CType_UInt32:
+    case kUpb_CType_Enum:
+      return _upb_Hash(&val, 4, seed);
+    case kUpb_CType_Double:
+    case kUpb_CType_Int64:
+    case kUpb_CType_UInt64:
+      return _upb_Hash(&val, 8, seed);
+    case kUpb_CType_String:
+    case kUpb_CType_Bytes:
+      return _upb_Hash(val.str_val.data, val.str_val.size, seed);
+    case kUpb_CType_Message:
+      return shared_Message_Hash(val.msg_val, msgdef, seed, status);
+    default:
+      upb_Status_SetErrorMessage(status, "Internal error, unexpected type");
+      return 0;
+  }
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/shared_convert.h

@@ -0,0 +1,26 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2023 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+// -----------------------------------------------------------------------------
+// Ruby <-> upb data conversion functions. Strictly free of dependencies on
+// Ruby interpreter internals.
+
+#ifndef RUBY_PROTOBUF_SHARED_CONVERT_H_
+#define RUBY_PROTOBUF_SHARED_CONVERT_H_
+
+#include "ruby-upb.h"
+#include "shared_message.h"
+
+bool shared_Msgval_IsEqual(upb_MessageValue val1, upb_MessageValue val2,
+                           upb_CType type, const upb_MessageDef* msgdef,
+                           upb_Status* status);
+
+uint64_t shared_Msgval_GetHash(upb_MessageValue val, upb_CType type,
+                               const upb_MessageDef* msgdef, uint64_t seed,
+                               upb_Status* status);
+
+#endif  // RUBY_PROTOBUF_SHARED_CONVERT_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/shared_message.c

@@ -0,0 +1,37 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2023 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+// -----------------------------------------------------------------------------
+// Ruby Message functions. Strictly free of dependencies on
+// Ruby interpreter internals.
+
+#include "shared_message.h"
+
+// Support function for Message_Hash. Returns a hash value for the given
+// message.
+uint64_t shared_Message_Hash(const upb_Message* msg, const upb_MessageDef* m,
+                             uint64_t seed, upb_Status* status) {
+  upb_Arena* arena = upb_Arena_New();
+  char* data;
+  size_t size;
+
+  // Hash a deterministically serialized payloads with no unknown fields.
+  upb_EncodeStatus encode_status = upb_Encode(
+      msg, upb_MessageDef_MiniTable(m),
+      kUpb_EncodeOption_SkipUnknown | kUpb_EncodeOption_Deterministic, arena,
+      &data, &size);
+
+  if (encode_status == kUpb_EncodeStatus_Ok) {
+    uint64_t ret = _upb_Hash(data, size, seed);
+    upb_Arena_Free(arena);
+    return ret;
+  }
+
+  upb_Arena_Free(arena);
+  upb_Status_SetErrorMessage(status, "Error calculating hash");
+  return 0;
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/shared_message.h

@@ -0,0 +1,21 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2023 Google Inc.  All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+// -----------------------------------------------------------------------------
+// Ruby Message functions. Strictly free of dependencies on
+// Ruby interpreter internals.
+
+#ifndef RUBY_PROTOBUF_SHARED_MESSAGE_H_
+#define RUBY_PROTOBUF_SHARED_MESSAGE_H_
+
+#include "ruby-upb.h"
+
+// Returns a hash value for the given message.
+uint64_t shared_Message_Hash(const upb_Message* msg, const upb_MessageDef* m,
+                             uint64_t seed, upb_Status* status);
+
+#endif  // RUBY_PROTOBUF_SHARED_MESSAGE_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/third_party/utf8_range/LICENSE

@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) 2019 Yibo Cai
+Copyright 2022 Google LLC
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/third_party/utf8_range/utf8_range.c

@@ -0,0 +1,207 @@
+// Copyright 2023 Google LLC
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
+/* This is a wrapper for the Google range-sse.cc algorithm which checks whether
+ * a sequence of bytes is a valid UTF-8 sequence and finds the longest valid
+ * prefix of the UTF-8 sequence.
+ *
+ * The key difference is that it checks for as much ASCII symbols as possible
+ * and then falls back to the range-sse.cc algorithm. The changes to the
+ * algorithm are cosmetic, mostly to trick the clang compiler to produce optimal
+ * code.
+ *
+ * For API see the utf8_validity.h header.
+ */
+#include "utf8_range.h"
+
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#if defined(__GNUC__)
+#define FORCE_INLINE_ATTR __attribute__((always_inline)) inline
+#elif defined(_MSC_VER)
+#define FORCE_INLINE_ATTR __forceinline
+#else
+#define FORCE_INLINE_ATTR inline
+#endif
+
+static FORCE_INLINE_ATTR uint64_t utf8_range_UnalignedLoad64(
+    const void* p) {
+  uint64_t t;
+  memcpy(&t, p, sizeof t);
+  return t;
+}
+
+static FORCE_INLINE_ATTR int utf8_range_AsciiIsAscii(unsigned char c) {
+  return c < 128;
+}
+
+static FORCE_INLINE_ATTR int utf8_range_IsTrailByteOk(const char c) {
+  return (int8_t)(c) <= (int8_t)(0xBF);
+}
+
+/* If return_position is false then it returns 1 if |data| is a valid utf8
+ * sequence, otherwise returns 0.
+ * If return_position is set to true, returns the length in bytes of the prefix
+   of |data| that is all structurally valid UTF-8.
+ */
+static size_t utf8_range_ValidateUTF8Naive(const char* data, const char* end,
+                                           int return_position) {
+  /* We return err_pos in the loop which is always 0 if !return_position */
+  size_t err_pos = 0;
+  size_t codepoint_bytes = 0;
+  /* The early check is done because of early continue's on codepoints of all
+   * sizes, i.e. we first check for ascii and if it is, we call continue, then
+   * for 2 byte codepoints, etc. This is done in order to reduce indentation and
+   * improve readability of the codepoint validity check.
+   */
+  while (data + codepoint_bytes < end) {
+    if (return_position) {
+      err_pos += codepoint_bytes;
+    }
+    data += codepoint_bytes;
+    const size_t len = end - data;
+    const unsigned char byte1 = data[0];
+
+    /* We do not skip many ascii bytes at the same time as this function is
+       used for tail checking (< 16 bytes) and for non x86 platforms. We also
+       don't think that cases where non-ASCII codepoints are followed by ascii
+       happen often. For small strings it also introduces some penalty. For
+       purely ascii UTF8 strings (which is the overwhelming case) we call
+       SkipAscii function which is multiplatform and extremely fast.
+     */
+    /* [00..7F] ASCII -> 1 byte */
+    if (utf8_range_AsciiIsAscii(byte1)) {
+      codepoint_bytes = 1;
+      continue;
+    }
+    /* [C2..DF], [80..BF] -> 2 bytes */
+    if (len >= 2 && byte1 >= 0xC2 && byte1 <= 0xDF &&
+        utf8_range_IsTrailByteOk(data[1])) {
+      codepoint_bytes = 2;
+      continue;
+    }
+    if (len >= 3) {
+      const unsigned char byte2 = data[1];
+      const unsigned char byte3 = data[2];
+
+      /* Is byte2, byte3 between [0x80, 0xBF]
+       * Check for 0x80 was done above.
+       */
+      if (!utf8_range_IsTrailByteOk(byte2) ||
+          !utf8_range_IsTrailByteOk(byte3)) {
+        return err_pos;
+      }
+
+      if (/* E0, A0..BF, 80..BF */
+          ((byte1 == 0xE0 && byte2 >= 0xA0) ||
+           /* E1..EC, 80..BF, 80..BF */
+           (byte1 >= 0xE1 && byte1 <= 0xEC) ||
+           /* ED, 80..9F, 80..BF */
+           (byte1 == 0xED && byte2 <= 0x9F) ||
+           /* EE..EF, 80..BF, 80..BF */
+           (byte1 >= 0xEE && byte1 <= 0xEF))) {
+        codepoint_bytes = 3;
+        continue;
+      }
+      if (len >= 4) {
+        const unsigned char byte4 = data[3];
+        /* Is byte4 between 0x80 ~ 0xBF */
+        if (!utf8_range_IsTrailByteOk(byte4)) {
+          return err_pos;
+        }
+
+        if (/* F0, 90..BF, 80..BF, 80..BF */
+            ((byte1 == 0xF0 && byte2 >= 0x90) ||
+             /* F1..F3, 80..BF, 80..BF, 80..BF */
+             (byte1 >= 0xF1 && byte1 <= 0xF3) ||
+             /* F4, 80..8F, 80..BF, 80..BF */
+             (byte1 == 0xF4 && byte2 <= 0x8F))) {
+          codepoint_bytes = 4;
+          continue;
+        }
+      }
+    }
+    return err_pos;
+  }
+  if (return_position) {
+    err_pos += codepoint_bytes;
+  }
+  /* if return_position is false, this returns 1.
+   * if return_position is true, this returns err_pos.
+   */
+  return err_pos + (1 - return_position);
+}
+
+#if defined(__SSE4_1__) || (defined(__ARM_NEON) && defined(__ARM_64BIT_STATE))
+/* Returns the number of bytes needed to skip backwards to get to the first
+   byte of codepoint.
+ */
+static inline int utf8_range_CodepointSkipBackwards(int32_t codepoint_word) {
+  const int8_t* const codepoint = (const int8_t*)(&codepoint_word);
+  if (!utf8_range_IsTrailByteOk(codepoint[3])) {
+    return 1;
+  } else if (!utf8_range_IsTrailByteOk(codepoint[2])) {
+    return 2;
+  } else if (!utf8_range_IsTrailByteOk(codepoint[1])) {
+    return 3;
+  }
+  return 0;
+}
+#endif  // __SSE4_1__
+
+/* Skipping over ASCII as much as possible, per 8 bytes. It is intentional
+   as most strings to check for validity consist only of 1 byte codepoints.
+ */
+static inline const char* utf8_range_SkipAscii(const char* data,
+                                               const char* end) {
+  while (8 <= end - data &&
+         (utf8_range_UnalignedLoad64(data) & 0x8080808080808080) == 0) {
+    data += 8;
+  }
+  while (data < end && utf8_range_AsciiIsAscii(*data)) {
+    ++data;
+  }
+  return data;
+}
+
+#if defined(__SSE4_1__)
+#include "utf8_range_sse.inc"
+#elif defined(__ARM_NEON) && defined(__ARM_64BIT_STATE)
+#include "utf8_range_neon.inc"
+#endif
+
+static FORCE_INLINE_ATTR size_t utf8_range_Validate(
+    const char* data, size_t len, int return_position) {
+  if (len == 0) return 1 - return_position;
+  // Save buffer start address for later use
+  const char* const data_original = data;
+  const char* const end = data + len;
+  data = utf8_range_SkipAscii(data, end);
+  /* SIMD algorithm always outperforms the naive version for any data of
+     length >=16.
+   */
+  if (end - data < 16) {
+    return (return_position ? (data - data_original) : 0) +
+           utf8_range_ValidateUTF8Naive(data, end, return_position);
+  }
+#if defined(__SSE4_1__) || (defined(__ARM_NEON) && defined(__ARM_64BIT_STATE))
+  return utf8_range_ValidateUTF8Simd(
+      data_original, data, end, return_position);
+#else
+  return (return_position ? (data - data_original) : 0) +
+         utf8_range_ValidateUTF8Naive(data, end, return_position);
+#endif
+}
+
+bool utf8_range_IsValid(const char* data, size_t len) {
+  return utf8_range_Validate(data, len, /*return_position=*/0) != 0;
+}
+
+size_t utf8_range_ValidPrefix(const char* data, size_t len) {
+  return utf8_range_Validate(data, len, /*return_position=*/1);
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/third_party/utf8_range/utf8_range.h

@@ -0,0 +1,23 @@
+#ifndef THIRD_PARTY_UTF8_RANGE_UTF8_RANGE_H_
+#define THIRD_PARTY_UTF8_RANGE_UTF8_RANGE_H_
+
+#include <stdbool.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Returns 1 if the sequence of characters is a valid UTF-8 sequence, otherwise
+// 0.
+bool utf8_range_IsValid(const char* data, size_t len);
+
+// Returns the length in bytes of the prefix of str that is all
+// structurally valid UTF-8.
+size_t utf8_range_ValidPrefix(const char* data, size_t len);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // THIRD_PARTY_UTF8_RANGE_UTF8_RANGE_H_

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/third_party/utf8_range/utf8_range_neon.inc

@@ -0,0 +1,117 @@
+#include <arm_neon.h>
+
+/* This code is almost the same as SSE implementation, please reference
+ * utf8-range-sse.inc for detailed explanation.
+ * The only difference is the range adjustment step. NEON code is more
+ * straightforward.
+ */
+
+static FORCE_INLINE_ATTR size_t utf8_range_ValidateUTF8Simd(
+    const char* data_original, const char* data, const char* end,
+    int return_position) {
+  const uint8x16_t first_len_tbl = {
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3,
+  };
+  const uint8x16_t first_range_tbl = {
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8,
+  };
+  const uint8x16_t range_min_tbl = {
+      0x00, 0x80, 0x80, 0x80, 0xA0, 0x80, 0x90, 0x80,
+      0xC2, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+  };
+  const uint8x16_t range_max_tbl = {
+      0x7F, 0xBF, 0xBF, 0xBF, 0xBF, 0x9F, 0xBF, 0x8F,
+      0xF4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  };
+  /* Range adjustment in NEON uint8x16x2 table. Note that lanes are interleaved
+   * in register. The table below is plotted vertically to ease understanding.
+   * The 1st column is for E0~EF, 2nd column for F0~FF.
+   */
+  // clang-format off
+  const uint8_t range_adjust_tbl_data[] = {
+    /* index -> 0~15  16~31 <- index */
+    /*  E0 -> */ 2,     3, /* <- F0  */
+                 0,     0,
+                 0,     0,
+                 0,     0,
+                 0,     4, /* <- F4  */
+                 0,     0,
+                 0,     0,
+                 0,     0,
+                 0,     0,
+                 0,     0,
+                 0,     0,
+                 0,     0,
+                 0,     0,
+    /*  ED -> */ 3,     0,
+                 0,     0,
+                 0,     0,
+  };
+  // clang-format on
+  const uint8x16x2_t range_adjust_tbl = vld2q_u8(range_adjust_tbl_data);
+
+  const uint8x16_t const_1 = vdupq_n_u8(1);
+  const uint8x16_t const_2 = vdupq_n_u8(2);
+  const uint8x16_t const_e0 = vdupq_n_u8(0xE0);
+
+  uint8x16_t prev_input = vdupq_n_u8(0);
+  uint8x16_t prev_first_len = vdupq_n_u8(0);
+  uint8x16_t error = vdupq_n_u8(0);
+
+  while (end - data >= 16) {
+    const uint8x16_t input = vld1q_u8((const uint8_t*)data);
+
+    const uint8x16_t high_nibbles = vshrq_n_u8(input, 4);
+
+    const uint8x16_t first_len = vqtbl1q_u8(first_len_tbl, high_nibbles);
+
+    uint8x16_t range = vqtbl1q_u8(first_range_tbl, high_nibbles);
+
+    range = vorrq_u8(range, vextq_u8(prev_first_len, first_len, 15));
+
+    uint8x16_t shift2 = vextq_u8(prev_first_len, first_len, 14);
+    shift2 = vqsubq_u8(shift2, const_1);
+    range = vorrq_u8(range, shift2);
+
+    uint8x16_t shift3 = vextq_u8(prev_first_len, first_len, 13);
+    shift3 = vqsubq_u8(shift3, const_2);
+    range = vorrq_u8(range, shift3);
+
+    uint8x16_t shift1 = vextq_u8(prev_input, input, 15);
+    shift1 = vsubq_u8(shift1, const_e0);
+    range = vaddq_u8(range, vqtbl2q_u8(range_adjust_tbl, shift1));
+
+    const uint8x16_t min_range = vqtbl1q_u8(range_min_tbl, range);
+    const uint8x16_t max_range = vqtbl1q_u8(range_max_tbl, range);
+
+    if (return_position) {
+      error = vcltq_u8(input, min_range);
+      error = vorrq_u8(error, vcgtq_u8(input, max_range));
+      if (vmaxvq_u32(vreinterpretq_u32_u8(error))) {
+        break;
+      }
+    } else {
+      error = vorrq_u8(error, vcltq_u8(input, min_range));
+      error = vorrq_u8(error, vcgtq_u8(input, max_range));
+    }
+
+    prev_input = input;
+    prev_first_len = first_len;
+
+    data += 16;
+  }
+
+  if (return_position && data == data_original) {
+    return utf8_range_ValidateUTF8Naive(data, end, return_position);
+  }
+  const int32_t prev = vgetq_lane_s32(vreinterpretq_s32_u8(prev_input), 3);
+  data -= utf8_range_CodepointSkipBackwards(prev);
+  if (return_position) {
+    return (data - data_original) +
+           utf8_range_ValidateUTF8Naive(data, end, return_position);
+  }
+  if (vmaxvq_u32(vreinterpretq_u32_u8(error))) {
+    return 0;
+  }
+  return utf8_range_ValidateUTF8Naive(data, end, return_position);
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/ext/google/protobuf_c/third_party/utf8_range/utf8_range_sse.inc

@@ -0,0 +1,272 @@
+#include <emmintrin.h>
+#include <smmintrin.h>
+#include <tmmintrin.h>
+
+static FORCE_INLINE_ATTR size_t utf8_range_ValidateUTF8Simd(
+    const char* data_original, const char* data, const char* end,
+    int return_position) {
+  /* This code checks that utf-8 ranges are structurally valid 16 bytes at once
+   * using superscalar instructions.
+   * The mapping between ranges of codepoint and their corresponding utf-8
+   * sequences is below.
+   */
+
+  /*
+   * U+0000...U+007F     00...7F
+   * U+0080...U+07FF     C2...DF 80...BF
+   * U+0800...U+0FFF     E0      A0...BF 80...BF
+   * U+1000...U+CFFF     E1...EC 80...BF 80...BF
+   * U+D000...U+D7FF     ED      80...9F 80...BF
+   * U+E000...U+FFFF     EE...EF 80...BF 80...BF
+   * U+10000...U+3FFFF   F0      90...BF 80...BF 80...BF
+   * U+40000...U+FFFFF   F1...F3 80...BF 80...BF 80...BF
+   * U+100000...U+10FFFF F4      80...8F 80...BF 80...BF
+   */
+
+  /* First we compute the type for each byte, as given by the table below.
+   * This type will be used as an index later on.
+   */
+
+  /*
+   * Index  Min Max Byte Type
+   *  0     00  7F  Single byte sequence
+   *  1,2,3 80  BF  Second, third and fourth byte for many of the sequences.
+   *  4     A0  BF  Second byte after E0
+   *  5     80  9F  Second byte after ED
+   *  6     90  BF  Second byte after F0
+   *  7     80  8F  Second byte after F4
+   *  8     C2  F4  First non ASCII byte
+   *  9..15 7F  80  Invalid byte
+   */
+
+  /* After the first step we compute the index for all bytes, then we permute
+     the bytes according to their indices to check the ranges from the range
+     table.
+   * The range for a given type can be found in the range_min_table and
+     range_max_table, the range for type/index X is in range_min_table[X] ...
+     range_max_table[X].
+   */
+
+  /* Algorithm:
+   * Put index zero to all bytes.
+   * Find all non ASCII characters, give them index 8.
+   * For each tail byte in a codepoint sequence, give it an index corresponding
+     to the 1 based index from the end.
+   * If the first byte of the codepoint is in the [C0...DF] range, we write
+     index 1 in the following byte.
+   * If the first byte of the codepoint is in the range [E0...EF], we write
+     indices 2 and 1 in the next two bytes.
+   * If the first byte of the codepoint is in the range [F0...FF] we write
+     indices 3,2,1 into the next three bytes.
+   * For finding the number of bytes we need to look at high nibbles (4 bits)
+     and do the lookup from the table, it can be done with shift by 4 + shuffle
+     instructions. We call it `first_len`.
+   * Then we shift first_len by 8 bits to get the indices of the 2nd bytes.
+   * Saturating sub 1 and shift by 8 bits to get the indices of the 3rd bytes.
+   * Again to get the indices of the 4th bytes.
+   * Take OR of all that 4 values and check within range.
+   */
+  /* For example:
+   * input       C3 80 68 E2 80 20 A6 F0 A0 80 AC 20 F0 93 80 80
+   * first_len   1  0  0  2  0  0  0  3  0  0  0  0  3  0  0  0
+   * 1st byte    8  0  0  8  0  0  0  8  0  0  0  0  8  0  0  0
+   * 2nd byte    0  1  0  0  2  0  0  0  3  0  0  0  0  3  0  0 // Shift + sub
+   * 3rd byte    0  0  0  0  0  1  0  0  0  2  0  0  0  0  2  0 // Shift + sub
+   * 4th byte    0  0  0  0  0  0  0  0  0  0  1  0  0  0  0  1 // Shift + sub
+   * Index       8  1  0  8  2  1  0  8  3  2  1  0  8  3  2  1 // OR of results
+   */
+
+  /* Checking for errors:
+   * Error checking is done by looking up the high nibble (4 bits) of each byte
+     against an error checking table.
+   * Because the lookup value for the second byte depends of the value of the
+     first byte in codepoint, we use saturated operations to adjust the index.
+   * Specifically we need to add 2 for E0, 3 for ED, 3 for F0 and 4 for F4 to
+     match the correct index.
+       * If we subtract from all bytes EF then EO -> 241, ED -> 254, F0 -> 1,
+         F4 -> 5
+       * Do saturating sub 240, then E0 -> 1, ED -> 14 and we can do lookup to
+         match the adjustment
+       * Add saturating 112, then F0 -> 113, F4 -> 117, all that were > 16 will
+         be more 128 and lookup in ef_fe_table will return 0 but for F0
+         and F4 it will be 4 and 5 accordingly
+   */
+  /*
+   * Then just check the appropriate ranges with greater/smaller equal
+     instructions. Check tail with a naive algorithm.
+   * To save from previous 16 byte checks we just align previous_first_len to
+     get correct continuations of the codepoints.
+   */
+
+  /*
+   * Map high nibble of "First Byte" to legal character length minus 1
+   * 0x00 ~ 0xBF --> 0
+   * 0xC0 ~ 0xDF --> 1
+   * 0xE0 ~ 0xEF --> 2
+   * 0xF0 ~ 0xFF --> 3
+   */
+  const __m128i first_len_table =
+      _mm_setr_epi8(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3);
+
+  /* Map "First Byte" to 8-th item of range table (0xC2 ~ 0xF4) */
+  const __m128i first_range_table =
+      _mm_setr_epi8(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8);
+
+  /*
+   * Range table, map range index to min and max values
+   */
+  const __m128i range_min_table =
+      _mm_setr_epi8(0x00, 0x80, 0x80, 0x80, 0xA0, 0x80, 0x90, 0x80, 0xC2, 0x7F,
+                    0x7F, 0x7F, 0x7F, 0x7F, 0x7F, 0x7F);
+
+  const __m128i range_max_table =
+      _mm_setr_epi8(0x7F, 0xBF, 0xBF, 0xBF, 0xBF, 0x9F, 0xBF, 0x8F, 0xF4, 0x80,
+                    0x80, 0x80, 0x80, 0x80, 0x80, 0x80);
+
+  /*
+   * Tables for fast handling of four special First Bytes(E0,ED,F0,F4), after
+   * which the Second Byte are not 80~BF. It contains "range index adjustment".
+   * +------------+---------------+------------------+----------------+
+   * | First Byte | original range| range adjustment | adjusted range |
+   * +------------+---------------+------------------+----------------+
+   * | E0         | 2             | 2                | 4              |
+   * +------------+---------------+------------------+----------------+
+   * | ED         | 2             | 3                | 5              |
+   * +------------+---------------+------------------+----------------+
+   * | F0         | 3             | 3                | 6              |
+   * +------------+---------------+------------------+----------------+
+   * | F4         | 4             | 4                | 8              |
+   * +------------+---------------+------------------+----------------+
+   */
+
+  /* df_ee_table[1] -> E0, df_ee_table[14] -> ED as ED - E0 = 13 */
+  // The values represent the adjustment in the Range Index table for a correct
+  // index.
+  const __m128i df_ee_table =
+      _mm_setr_epi8(0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0);
+
+  /* ef_fe_table[1] -> F0, ef_fe_table[5] -> F4, F4 - F0 = 4 */
+  // The values represent the adjustment in the Range Index table for a correct
+  // index.
+  const __m128i ef_fe_table =
+      _mm_setr_epi8(0, 3, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+
+  __m128i prev_input = _mm_set1_epi8(0);
+  __m128i prev_first_len = _mm_set1_epi8(0);
+  __m128i error = _mm_set1_epi8(0);
+
+  while (end - data >= 16) {
+    const __m128i input = _mm_loadu_si128((const __m128i*)(data));
+
+    /* high_nibbles = input >> 4 */
+    const __m128i high_nibbles =
+        _mm_and_si128(_mm_srli_epi16(input, 4), _mm_set1_epi8(0x0F));
+
+    /* first_len = legal character length minus 1 */
+    /* 0 for 00~7F, 1 for C0~DF, 2 for E0~EF, 3 for F0~FF */
+    /* first_len = first_len_table[high_nibbles] */
+    __m128i first_len = _mm_shuffle_epi8(first_len_table, high_nibbles);
+
+    /* First Byte: set range index to 8 for bytes within 0xC0 ~ 0xFF */
+    /* range = first_range_table[high_nibbles] */
+    __m128i range = _mm_shuffle_epi8(first_range_table, high_nibbles);
+
+    /* Second Byte: set range index to first_len */
+    /* 0 for 00~7F, 1 for C0~DF, 2 for E0~EF, 3 for F0~FF */
+    /* range |= (first_len, prev_first_len) << 1 byte */
+    range = _mm_or_si128(range, _mm_alignr_epi8(first_len, prev_first_len, 15));
+
+    /* Third Byte: set range index to saturate_sub(first_len, 1) */
+    /* 0 for 00~7F, 0 for C0~DF, 1 for E0~EF, 2 for F0~FF */
+    __m128i tmp1;
+    __m128i tmp2;
+    /* tmp1 = saturate_sub(first_len, 1) */
+    tmp1 = _mm_subs_epu8(first_len, _mm_set1_epi8(1));
+    /* tmp2 = saturate_sub(prev_first_len, 1) */
+    tmp2 = _mm_subs_epu8(prev_first_len, _mm_set1_epi8(1));
+    /* range |= (tmp1, tmp2) << 2 bytes */
+    range = _mm_or_si128(range, _mm_alignr_epi8(tmp1, tmp2, 14));
+
+    /* Fourth Byte: set range index to saturate_sub(first_len, 2) */
+    /* 0 for 00~7F, 0 for C0~DF, 0 for E0~EF, 1 for F0~FF */
+    /* tmp1 = saturate_sub(first_len, 2) */
+    tmp1 = _mm_subs_epu8(first_len, _mm_set1_epi8(2));
+    /* tmp2 = saturate_sub(prev_first_len, 2) */
+    tmp2 = _mm_subs_epu8(prev_first_len, _mm_set1_epi8(2));
+    /* range |= (tmp1, tmp2) << 3 bytes */
+    range = _mm_or_si128(range, _mm_alignr_epi8(tmp1, tmp2, 13));
+
+    /*
+     * Now we have below range indices calculated
+     * Correct cases:
+     * - 8 for C0~FF
+     * - 3 for 1st byte after F0~FF
+     * - 2 for 1st byte after E0~EF or 2nd byte after F0~FF
+     * - 1 for 1st byte after C0~DF or 2nd byte after E0~EF or
+     *         3rd byte after F0~FF
+     * - 0 for others
+     * Error cases:
+     *   >9 for non ascii First Byte overlapping
+     *   E.g., F1 80 C2 90 --> 8 3 10 2, where 10 indicates error
+     */
+
+    /* Adjust Second Byte range for special First Bytes(E0,ED,F0,F4) */
+    /* Overlaps lead to index 9~15, which are illegal in range table */
+    __m128i shift1;
+    __m128i pos;
+    __m128i range2;
+    /* shift1 = (input, prev_input) << 1 byte */
+    shift1 = _mm_alignr_epi8(input, prev_input, 15);
+    pos = _mm_sub_epi8(shift1, _mm_set1_epi8(0xEF));
+    /*
+     * shift1:  | EF  F0 ... FE | FF  00  ... ...  DE | DF  E0 ... EE |
+     * pos:     | 0   1      15 | 16  17           239| 240 241    255|
+     * pos-240: | 0   0      0  | 0   0            0  | 0   1      15 |
+     * pos+112: | 112 113    127|       >= 128        |     >= 128    |
+     */
+    tmp1 = _mm_subs_epu8(pos, _mm_set1_epi8(-16));
+    range2 = _mm_shuffle_epi8(df_ee_table, tmp1);
+    tmp2 = _mm_adds_epu8(pos, _mm_set1_epi8(112));
+    range2 = _mm_add_epi8(range2, _mm_shuffle_epi8(ef_fe_table, tmp2));
+
+    range = _mm_add_epi8(range, range2);
+
+    /* Load min and max values per calculated range index */
+    __m128i min_range = _mm_shuffle_epi8(range_min_table, range);
+    __m128i max_range = _mm_shuffle_epi8(range_max_table, range);
+
+    /* Check value range */
+    if (return_position) {
+      error = _mm_cmplt_epi8(input, min_range);
+      error = _mm_or_si128(error, _mm_cmpgt_epi8(input, max_range));
+      /* 5% performance drop from this conditional branch */
+      if (!_mm_testz_si128(error, error)) {
+        break;
+      }
+    } else {
+      error = _mm_or_si128(error, _mm_cmplt_epi8(input, min_range));
+      error = _mm_or_si128(error, _mm_cmpgt_epi8(input, max_range));
+    }
+
+    prev_input = input;
+    prev_first_len = first_len;
+
+    data += 16;
+  }
+  /* If we got to the end, we don't need to skip any bytes backwards */
+  if (return_position && data == data_original) {
+    return utf8_range_ValidateUTF8Naive(data, end, return_position);
+  }
+  /* Find previous codepoint (not 80~BF) */
+  data -= utf8_range_CodepointSkipBackwards(_mm_extract_epi32(prev_input, 3));
+  if (return_position) {
+    return (data - data_original) +
+           utf8_range_ValidateUTF8Naive(data, end, return_position);
+  }
+  /* Test if there was any error */
+  if (!_mm_testz_si128(error, error)) {
+    return 0;
+  }
+  /* Check the tail */
+  return utf8_range_ValidateUTF8Naive(data, end, return_position);
+}

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf.rb

@@ -0,0 +1,61 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2008 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+# require mixins before we hook them into the java & c code
+require 'google/protobuf/message_exts'
+require 'google/protobuf/internal/object_cache'
+
+# We define these before requiring the platform-specific modules.
+# That way the module init can grab references to these.
+module Google
+  module Protobuf
+    class Error < StandardError; end
+    class ParseError < Error; end
+    class TypeError < ::TypeError; end
+
+    PREFER_FFI = case ENV['PROTOCOL_BUFFERS_RUBY_IMPLEMENTATION']
+                 when nil, "", /^native$/i
+                   false
+                 when /^ffi$/i
+                   true
+                 else
+                   warn "Unexpected value `#{ENV['PROTOCOL_BUFFERS_RUBY_IMPLEMENTATION']}` for environment variable `PROTOCOL_BUFFERS_RUBY_IMPLEMENTATION`. Should be either \"FFI\", \"NATIVE\"."
+                   false
+                 end
+
+    def self.encode(msg, options = {})
+      msg.to_proto(options)
+    end
+
+    def self.encode_json(msg, options = {})
+      msg.to_json(options)
+    end
+
+    def self.decode(klass, proto, options = {})
+      klass.decode(proto, options)
+    end
+
+    def self.decode_json(klass, json, options = {})
+      klass.decode_json(json, options)
+    end
+
+    IMPLEMENTATION = if PREFER_FFI
+      begin
+        require 'google/protobuf_ffi'
+        :FFI
+      rescue LoadError
+        warn "Caught exception `#{$!.message}` while loading FFI implementation of google/protobuf."
+        warn "Falling back to native implementation."
+        require 'google/protobuf_native'
+        :NATIVE
+      end
+    else
+      require 'google/protobuf_native'
+      :NATIVE
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/any_pb.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/any.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n\x19google/protobuf/any.proto\x12\x0fgoogle.protobuf\"&\n\x03\x41ny\x12\x10\n\x08type_url\x18\x01 \x01(\t\x12\r\n\x05value\x18\x02 \x01(\x0c\x42v\n\x13\x63om.google.protobufB\x08\x41nyProtoP\x01Z,google.golang.org/protobuf/types/known/anypb\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    Any = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Any").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/api_pb.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/api.proto
+
+require 'google/protobuf'
+
+require 'google/protobuf/source_context_pb'
+require 'google/protobuf/type_pb'
+
+
+descriptor_data = "\n\x19google/protobuf/api.proto\x12\x0fgoogle.protobuf\x1a$google/protobuf/source_context.proto\x1a\x1agoogle/protobuf/type.proto\"\x92\x02\n\x03\x41pi\x12\x0c\n\x04name\x18\x01 \x01(\t\x12(\n\x07methods\x18\x02 \x03(\x0b\x32\x17.google.protobuf.Method\x12(\n\x07options\x18\x03 \x03(\x0b\x32\x17.google.protobuf.Option\x12\x0f\n\x07version\x18\x04 \x01(\t\x12\x36\n\x0esource_context\x18\x05 \x01(\x0b\x32\x1e.google.protobuf.SourceContext\x12&\n\x06mixins\x18\x06 \x03(\x0b\x32\x16.google.protobuf.Mixin\x12\'\n\x06syntax\x18\x07 \x01(\x0e\x32\x17.google.protobuf.Syntax\x12\x0f\n\x07\x65\x64ition\x18\x08 \x01(\t\"\xee\x01\n\x06Method\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x18\n\x10request_type_url\x18\x02 \x01(\t\x12\x19\n\x11request_streaming\x18\x03 \x01(\x08\x12\x19\n\x11response_type_url\x18\x04 \x01(\t\x12\x1a\n\x12response_streaming\x18\x05 \x01(\x08\x12(\n\x07options\x18\x06 \x03(\x0b\x32\x17.google.protobuf.Option\x12+\n\x06syntax\x18\x07 \x01(\x0e\x32\x17.google.protobuf.SyntaxB\x02\x18\x01\x12\x13\n\x07\x65\x64ition\x18\x08 \x01(\tB\x02\x18\x01\"#\n\x05Mixin\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x0c\n\x04root\x18\x02 \x01(\tBv\n\x13\x63om.google.protobufB\x08\x41piProtoP\x01Z,google.golang.org/protobuf/types/known/apipb\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    Api = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Api").msgclass
+    Method = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Method").msgclass
+    Mixin = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Mixin").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/duration_pb.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/duration.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n\x1egoogle/protobuf/duration.proto\x12\x0fgoogle.protobuf\"*\n\x08\x44uration\x12\x0f\n\x07seconds\x18\x01 \x01(\x03\x12\r\n\x05nanos\x18\x02 \x01(\x05\x42\x83\x01\n\x13\x63om.google.protobufB\rDurationProtoP\x01Z1google.golang.org/protobuf/types/known/durationpb\xf8\x01\x01\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    Duration = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Duration").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/empty_pb.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/empty.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n\x1bgoogle/protobuf/empty.proto\x12\x0fgoogle.protobuf\"\x07\n\x05\x45mptyB}\n\x13\x63om.google.protobufB\nEmptyProtoP\x01Z.google.golang.org/protobuf/types/known/emptypb\xf8\x01\x01\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    Empty = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Empty").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/descriptor.rb

@@ -0,0 +1,175 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    ##
+    # Message Descriptor - Descriptor for short.
+    class Descriptor
+      attr :descriptor_pool, :msg_class
+      include Enumerable
+
+      # FFI Interface methods and setup
+      extend ::FFI::DataConverter
+      native_type ::FFI::Type::POINTER
+
+      class << self
+        prepend Google::Protobuf::Internal::TypeSafety
+        include Google::Protobuf::Internal::PointerHelper
+
+        # @param value [Descriptor] Descriptor to convert to an FFI native type
+        # @param _ [Object] Unused
+        def to_native(value, _ = nil)
+          msg_def_ptr = value.nil? ? nil : value.instance_variable_get(:@msg_def)
+          return ::FFI::Pointer::NULL if msg_def_ptr.nil?
+          raise "Underlying msg_def was null!" if msg_def_ptr.null?
+          msg_def_ptr
+        end
+
+        ##
+        # @param msg_def [::FFI::Pointer] MsgDef pointer to be wrapped
+        # @param _ [Object] Unused
+        def from_native(msg_def, _ = nil)
+          return nil if msg_def.nil? or msg_def.null?
+          file_def = Google::Protobuf::FFI.get_message_file_def msg_def
+          descriptor_from_file_def(file_def, msg_def)
+        end
+      end
+
+      def to_native
+        self.class.to_native(self)
+      end
+
+      ##
+      # Great write up of this strategy:
+      # See https://blog.appsignal.com/2018/08/07/ruby-magic-changing-the-way-ruby-creates-objects.html
+      def self.new(*arguments, &block)
+        raise "Descriptor objects may not be created from Ruby."
+      end
+
+      def to_s
+        inspect
+      end
+
+      def inspect
+        "Descriptor - (not the message class) #{name}"
+      end
+
+      def file_descriptor
+        @descriptor_pool.send(:get_file_descriptor, Google::Protobuf::FFI.get_message_file_def(@msg_def))
+      end
+
+      def name
+        @name ||= Google::Protobuf::FFI.get_message_fullname(self)
+      end
+
+      def each_oneof &block
+        n = Google::Protobuf::FFI.oneof_count(self)
+        0.upto(n-1) do |i|
+          yield(Google::Protobuf::FFI.get_oneof_by_index(self, i))
+        end
+        nil
+      end
+
+      def each &block
+        n = Google::Protobuf::FFI.field_count(self)
+        0.upto(n-1) do |i|
+          yield(Google::Protobuf::FFI.get_field_by_index(self, i))
+        end
+        nil
+      end
+
+      def lookup(name)
+        Google::Protobuf::FFI.get_field_by_name(self, name, name.size)
+      end
+
+      def lookup_oneof(name)
+        Google::Protobuf::FFI.get_oneof_by_name(self, name, name.size)
+      end
+
+      def msgclass
+        @msg_class ||= build_message_class
+      end
+
+      def options
+        @options ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.message_options(self, size_ptr, temporary_arena)
+          opts = Google::Protobuf::MessageOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+          opts.clear_features()
+          opts.freeze
+        end
+      end
+
+      def to_proto
+        @to_proto ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.message_to_proto(self, size_ptr, temporary_arena)
+          Google::Protobuf::DescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+        end
+      end
+
+      private
+
+      extend Google::Protobuf::Internal::Convert
+
+      def initialize(msg_def, descriptor_pool)
+        @msg_def = msg_def
+        @msg_class = nil
+        @descriptor_pool = descriptor_pool
+      end
+
+      def self.private_constructor(msg_def, descriptor_pool)
+        instance = allocate
+        instance.send(:initialize, msg_def, descriptor_pool)
+        instance
+      end
+
+      def wrapper?
+        if defined? @wrapper
+          @wrapper
+        else
+          @wrapper = case Google::Protobuf::FFI.get_well_known_type self
+          when :DoubleValue, :FloatValue, :Int64Value, :UInt64Value, :Int32Value, :UInt32Value, :StringValue, :BytesValue, :BoolValue
+            true
+          else
+            false
+          end
+        end
+      end
+
+      def self.get_message(msg, descriptor, arena)
+        return nil if msg.nil? or msg.null?
+        message = OBJECT_CACHE.get(msg.address)
+        if message.nil?
+          message = descriptor.msgclass.send(:private_constructor, arena, msg: msg)
+        end
+        message
+      end
+
+      def pool
+        @descriptor_pool
+      end
+    end
+
+    class FFI
+      # MessageDef
+      attach_function :new_message_from_def, :upb_Message_New,                        [MiniTable.by_ref, Internal::Arena], :Message
+      attach_function :field_count,          :upb_MessageDef_FieldCount,              [Descriptor], :int
+      attach_function :get_message_file_def, :upb_MessageDef_File,                    [:pointer], :FileDef
+      attach_function :get_message_fullname, :upb_MessageDef_FullName,                [Descriptor], :string
+      attach_function :get_mini_table,       :upb_MessageDef_MiniTable,               [Descriptor], MiniTable.ptr
+      attach_function :oneof_count,          :upb_MessageDef_OneofCount,              [Descriptor], :int
+      attach_function :message_options,      :Descriptor_serialized_options,          [Descriptor, :pointer, Internal::Arena], :pointer
+      attach_function :get_well_known_type,  :upb_MessageDef_WellKnownType,           [Descriptor], WellKnown
+      attach_function :find_msg_def_by_name, :upb_MessageDef_FindByNameWithSize,      [Descriptor, :string, :size_t, :FieldDefPointer, :OneofDefPointer], :bool
+      attach_function :message_to_proto,     :Descriptor_serialized_to_proto,         [Descriptor, :pointer, Internal::Arena], :pointer
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/descriptor_pool.rb

@@ -0,0 +1,83 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class FFI
+      # DefPool
+      attach_function :add_serialized_file,   :upb_DefPool_AddFile,            [:DefPool, :FileDescriptorProto, Status.by_ref], :FileDef
+      attach_function :free_descriptor_pool,  :upb_DefPool_Free,               [:DefPool], :void
+      attach_function :create_descriptor_pool,:upb_DefPool_New,                [], :DefPool
+      attach_function :disable_closed_enum_checking, :upb_DefPool_DisableClosedEnumChecking, [:DefPool], :void
+      attach_function :get_extension_registry,:upb_DefPool_ExtensionRegistry,  [:DefPool],  :ExtensionRegistry
+      attach_function :lookup_enum,           :upb_DefPool_FindEnumByName,     [:DefPool, :string], EnumDescriptor
+      attach_function :lookup_extension,      :upb_DefPool_FindExtensionByName,[:DefPool, :string], FieldDescriptor
+      attach_function :lookup_msg,            :upb_DefPool_FindMessageByName,  [:DefPool, :string], Descriptor
+      attach_function :lookup_service,        :upb_DefPool_FindServiceByName,  [:DefPool, :string], ServiceDescriptor
+      attach_function :lookup_file,           :upb_DefPool_FindFileByName,     [:DefPool, :string], FileDescriptor
+
+        # FileDescriptorProto
+      attach_function :parse,                 :FileDescriptorProto_parse,      [:binary_string, :size_t, Internal::Arena], :FileDescriptorProto
+    end
+    class DescriptorPool
+      attr :descriptor_pool
+      attr_accessor :descriptor_class_by_def
+
+      def initialize
+        @descriptor_pool = ::FFI::AutoPointer.new(Google::Protobuf::FFI.create_descriptor_pool, Google::Protobuf::FFI.method(:free_descriptor_pool))
+        @descriptor_class_by_def = {}
+
+        # Ruby treats all enums as open.
+        Google::Protobuf::FFI.disable_closed_enum_checking(@descriptor_pool)
+
+        # Should always be the last expression of the initializer to avoid
+        # leaking references to this object before construction is complete.
+        Google::Protobuf::OBJECT_CACHE.try_add @descriptor_pool.address, self
+      end
+
+      def add_serialized_file(file_contents)
+        # Allocate memory sized to file_contents
+        memBuf = ::FFI::MemoryPointer.new(:char, file_contents.bytesize)
+        # Insert the data
+        memBuf.put_bytes(0, file_contents)
+        temporary_arena = Google::Protobuf::FFI.create_arena
+        file_descriptor_proto = Google::Protobuf::FFI.parse memBuf, file_contents.bytesize, temporary_arena
+        raise ArgumentError.new("Unable to parse FileDescriptorProto") if file_descriptor_proto.null?
+
+        status = Google::Protobuf::FFI::Status.new
+        file_descriptor = Google::Protobuf::FFI.add_serialized_file @descriptor_pool, file_descriptor_proto, status
+        if file_descriptor.null?
+          raise TypeError.new("Unable to build file to DescriptorPool: #{Google::Protobuf::FFI.error_message(status)}")
+        else
+          @descriptor_class_by_def[file_descriptor.address] = FileDescriptor.new file_descriptor, self
+        end
+      end
+
+      def lookup name
+        Google::Protobuf::FFI.lookup_msg(@descriptor_pool, name) ||
+          Google::Protobuf::FFI.lookup_enum(@descriptor_pool, name) ||
+          Google::Protobuf::FFI.lookup_extension(@descriptor_pool, name) ||
+          Google::Protobuf::FFI.lookup_service(@descriptor_pool, name) ||
+          Google::Protobuf::FFI.lookup_file(@descriptor_pool, name)
+      end
+
+      def self.generated_pool
+        @@generated_pool ||= DescriptorPool.new
+      end
+
+      private
+
+      # Implementation details below are subject to breaking changes without
+      # warning and are intended for use only within the gem.
+
+      def get_file_descriptor file_def
+        return nil if file_def.null?
+        @descriptor_class_by_def[file_def.address] ||= FileDescriptor.new(file_def, self)
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/enum_descriptor.rb

@@ -0,0 +1,183 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class EnumDescriptor
+      attr :descriptor_pool, :enum_def
+      include Enumerable
+
+      # FFI Interface methods and setup
+      extend ::FFI::DataConverter
+      native_type ::FFI::Type::POINTER
+
+      class << self
+        prepend Google::Protobuf::Internal::TypeSafety
+        include Google::Protobuf::Internal::PointerHelper
+
+        # @param value [EnumDescriptor] EnumDescriptor to convert to an FFI native type
+        # @param _ [Object] Unused
+        def to_native(value, _)
+          value.instance_variable_get(:@enum_def) || ::FFI::Pointer::NULL
+        end
+
+        ##
+        # @param enum_def [::FFI::Pointer] EnumDef pointer to be wrapped
+        # @param _ [Object] Unused
+        def from_native(enum_def, _)
+          return nil if enum_def.nil? or enum_def.null?
+          file_def = Google::Protobuf::FFI.get_message_file_def enum_def
+          descriptor_from_file_def(file_def, enum_def)
+        end
+      end
+
+      def self.new(*arguments, &block)
+        raise "Descriptor objects may not be created from Ruby."
+      end
+
+      def file_descriptor
+        @descriptor_pool.send(:get_file_descriptor, Google::Protobuf::FFI.get_enum_file_descriptor(self))
+      end
+
+      def name
+        Google::Protobuf::FFI.get_enum_fullname(self)
+      end
+
+      def to_s
+        inspect
+      end
+
+      def inspect
+        "#{self.class.name}: #{name}"
+      end
+
+      def lookup_name(name)
+        self.class.send(:lookup_name, self, name)
+      end
+
+      def lookup_value(number)
+        self.class.send(:lookup_value, self, number)
+      end
+
+      def each &block
+        n = Google::Protobuf::FFI.enum_value_count(self)
+        0.upto(n - 1) do |i|
+          enum_value = Google::Protobuf::FFI.enum_value_by_index(self, i)
+          yield(Google::Protobuf::FFI.enum_name(enum_value).to_sym, Google::Protobuf::FFI.enum_number(enum_value))
+        end
+        nil
+      end
+
+      def enummodule
+        if @module.nil?
+          @module = build_enum_module
+        end
+        @module
+      end
+
+      def options
+        @options ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.enum_options(self, size_ptr, temporary_arena)
+          opts = Google::Protobuf::EnumOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+          opts.clear_features()
+          opts.freeze
+        end
+      end
+
+      def to_proto
+        @to_proto ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.enum_to_proto(self, size_ptr, temporary_arena)
+          Google::Protobuf::EnumDescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+        end
+      end
+
+      private
+
+      def initialize(enum_def, descriptor_pool)
+        @descriptor_pool = descriptor_pool
+        @enum_def = enum_def
+        @module = nil
+      end
+
+      def self.private_constructor(enum_def, descriptor_pool)
+        instance = allocate
+        instance.send(:initialize, enum_def, descriptor_pool)
+        instance
+      end
+
+      def self.lookup_value(enum_def, number)
+        enum_value = Google::Protobuf::FFI.enum_value_by_number(enum_def, number)
+        if enum_value.null?
+          nil
+        else
+          Google::Protobuf::FFI.enum_name(enum_value).to_sym
+        end
+      end
+
+      def self.lookup_name(enum_def, name)
+        enum_value = Google::Protobuf::FFI.enum_value_by_name(enum_def, name.to_s, name.size)
+        if enum_value.null?
+          nil
+        else
+          Google::Protobuf::FFI.enum_number(enum_value)
+        end
+      end
+
+      def build_enum_module
+        descriptor = self
+        dynamic_module = Module.new do
+          @descriptor = descriptor
+
+          class << self
+            attr_accessor :descriptor
+          end
+
+          def self.lookup(number)
+            descriptor.lookup_value number
+          end
+
+          def self.resolve(name)
+            descriptor.lookup_name name
+          end
+        end
+
+        self.each do |name, value|
+          if name[0] < 'A' || name[0] > 'Z'
+            if name[0] >= 'a' and name[0] <= 'z'
+              name = name[0].upcase + name[1..-1] # auto capitalize
+            else
+              warn(
+                "Enum value '#{name}' does not start with an uppercase letter " +
+                  "as is required for Ruby constants.")
+              next
+            end
+          end
+          dynamic_module.const_set(name.to_sym, value)
+        end
+        dynamic_module
+      end
+    end
+
+    class FFI
+      # EnumDescriptor
+      attach_function :get_enum_file_descriptor,  :upb_EnumDef_File,                   [EnumDescriptor], :FileDef
+      attach_function :enum_value_by_name,        :upb_EnumDef_FindValueByNameWithSize,[EnumDescriptor, :string, :size_t], :EnumValueDef
+      attach_function :enum_value_by_number,      :upb_EnumDef_FindValueByNumber,      [EnumDescriptor, :int], :EnumValueDef
+      attach_function :get_enum_fullname,         :upb_EnumDef_FullName,               [EnumDescriptor], :string
+      attach_function :enum_options,              :EnumDescriptor_serialized_options,  [EnumDescriptor, :pointer, Internal::Arena], :pointer
+      attach_function :enum_to_proto,             :EnumDescriptor_serialized_to_proto, [EnumDescriptor, :pointer, Internal::Arena], :pointer
+      attach_function :enum_value_by_index,       :upb_EnumDef_Value,                  [EnumDescriptor, :int], :EnumValueDef
+      attach_function :enum_value_count,          :upb_EnumDef_ValueCount,             [EnumDescriptor], :int
+      attach_function :enum_name,                 :upb_EnumValueDef_Name,              [:EnumValueDef], :string
+      attach_function :enum_number,               :upb_EnumValueDef_Number,            [:EnumValueDef], :int
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/ffi.rb

@@ -0,0 +1,213 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class FFI
+      extend ::FFI::Library
+      # Workaround for Bazel's use of symlinks + JRuby's __FILE__ and `caller`
+      # that resolves them.
+      if ENV['BAZEL'] == 'true'
+        ffi_lib ::FFI::Compiler::Loader.find 'protobuf_c_ffi', ENV['PWD']
+      else
+        ffi_lib ::FFI::Compiler::Loader.find 'protobuf_c_ffi'
+      end
+
+      ## Map
+      Upb_Map_Begin = -1
+
+      ## Encoding Status
+      Upb_Status_MaxMessage = 511
+      Upb_Encode_Deterministic = 1
+      Upb_Encode_SkipUnknown = 2
+
+      ## JSON Encoding options
+      # When set, emits 0/default values.  TODO: proto3 only?
+      Upb_JsonEncode_EmitDefaults = 1
+      # When set, use normal (snake_case) field names instead of JSON (camelCase) names.
+      Upb_JsonEncode_UseProtoNames = 2
+      # When set, emits enums as their integer values instead of as their names.
+      Upb_JsonEncode_FormatEnumsAsIntegers = 4
+
+      ## JSON Decoding options
+      Upb_JsonDecode_IgnoreUnknown = 1
+
+      ## JSON Decoding results
+      Upb_JsonDecodeResult_Ok = 0
+      Upb_JsonDecodeResult_Error = 2
+
+      typedef :pointer, :Array
+      typedef :pointer, :DefPool
+      typedef :pointer, :EnumValueDef
+      typedef :pointer, :ExtensionRegistry
+      typedef :pointer, :FieldDefPointer
+      typedef :pointer, :FileDef
+      typedef :pointer, :FileDescriptorProto
+      typedef :pointer, :Map
+      typedef :pointer, :Message    # Instances of a message
+      typedef :pointer, :OneofDefPointer
+      typedef :pointer, :binary_string
+      if ::FFI::Platform::ARCH == "aarch64"
+        typedef :u_int8_t, :uint8_t
+        typedef :u_int16_t, :uint16_t
+        typedef :u_int32_t, :uint32_t
+        typedef :u_int64_t, :uint64_t
+      end
+
+      FieldType = enum(
+        :double, 1,
+        :float,
+        :int64,
+        :uint64,
+        :int32,
+        :fixed64,
+        :fixed32,
+        :bool,
+        :string,
+        :group,
+        :message,
+        :bytes,
+        :uint32,
+        :enum,
+        :sfixed32,
+        :sfixed64,
+        :sint32,
+        :sint64
+      )
+
+      CType = enum(
+        :bool, 1,
+        :float,
+        :int32,
+        :uint32,
+        :enum,
+        :message,
+        :double,
+        :int64,
+        :uint64,
+        :string,
+        :bytes
+      )
+
+      Label = enum(
+        :optional, 1,
+        :required,
+        :repeated
+      )
+
+      # All the different kind of well known type messages. For simplicity of check,
+      # number wrappers and string wrappers are grouped together. Make sure the
+      # order and merber of these groups are not changed.
+
+      WellKnown = enum(
+        :Unspecified,
+        :Any,
+        :FieldMask,
+        :Duration,
+        :Timestamp,
+        # number wrappers
+        :DoubleValue,
+        :FloatValue,
+        :Int64Value,
+        :UInt64Value,
+        :Int32Value,
+        :UInt32Value,
+        # string wrappers
+        :StringValue,
+        :BytesValue,
+        :BoolValue,
+        :Value,
+        :ListValue,
+        :Struct
+      )
+
+      DecodeStatus = enum(
+        :Ok,
+        :Malformed,         # Wire format was corrupt
+        :OutOfMemory,       # Arena alloc failed
+        :BadUtf8,           # String field had bad UTF-8
+        :MaxDepthExceeded,  # Exceeded UPB_DECODE_MAXDEPTH
+
+        # CheckRequired failed, but the parse otherwise succeeded.
+        :MissingRequired,
+      )
+
+      EncodeStatus = enum(
+        :Ok,
+        :OutOfMemory,       # Arena alloc failed
+        :MaxDepthExceeded,  # Exceeded UPB_DECODE_MAXDEPTH
+
+        # CheckRequired failed, but the parse otherwise succeeded.
+        :MissingRequired,
+      )
+
+      class StringView < ::FFI::Struct
+        layout :data, :pointer,
+               :size, :size_t
+      end
+
+      class MiniTable < ::FFI::Struct
+        layout :fields, :pointer,
+               :size, :uint16_t,
+               :field_count, :uint16_t,
+               :ext, :uint8_t,  # upb_ExtMode, declared as uint8_t so sizeof(ext) == 1
+               :dense_below, :uint8_t,
+               :table_mask, :uint8_t,
+               :required_count, :uint8_t  # Required fields have the lowest hasbits.
+        # To statically initialize the tables of variable length, we need a flexible
+        # array member, and we need to compile in gnu99 mode (constant initialization
+        # of flexible array members is a GNU extension, not in C99 unfortunately. */
+        #       _upb_FastTable_Entry fasttable[];
+      end
+
+      class Status < ::FFI::Struct
+        layout :ok, :bool,
+               :msg, [:char, Upb_Status_MaxMessage]
+
+        def initialize
+          super
+          FFI.clear self
+        end
+      end
+
+      class MessageValue < ::FFI::Union
+        layout :bool_val, :bool,
+               :float_val, :float,
+               :double_val, :double,
+               :int32_val, :int32_t,
+               :int64_val, :int64_t,
+               :uint32_val, :uint32_t,
+               :uint64_val,:uint64_t,
+               :map_val, :pointer,
+               :msg_val, :pointer,
+               :array_val,:pointer,
+               :str_val, StringView
+      end
+
+      Upb_Message_Begin = -1
+
+      class MutableMessageValue < ::FFI::Union
+        layout :map, :Map,
+               :msg, :Message,
+               :array, :Array
+      end
+
+      # Status
+      attach_function :clear,                 :upb_Status_Clear, [Status.by_ref], :void
+      attach_function :error_message,         :upb_Status_ErrorMessage, [Status.by_ref], :string
+
+      # Generic
+      attach_function :memcmp, [:pointer, :pointer, :size_t], :int
+      attach_function :memcpy, [:pointer, :pointer, :size_t], :int
+
+      # Alternatives to pre-processor macros
+      def self.decode_max_depth(i)
+        i << 16
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/field_descriptor.rb

@@ -0,0 +1,346 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class FieldDescriptor
+      attr :field_def, :descriptor_pool
+
+      include Google::Protobuf::Internal::Convert
+
+      # FFI Interface methods and setup
+      extend ::FFI::DataConverter
+      native_type ::FFI::Type::POINTER
+
+      class << self
+        prepend Google::Protobuf::Internal::TypeSafety
+        include Google::Protobuf::Internal::PointerHelper
+
+        # @param value [FieldDescriptor] FieldDescriptor to convert to an FFI native type
+        # @param _ [Object] Unused
+        def to_native(value, _)
+          field_def_ptr = value.instance_variable_get(:@field_def)
+          warn "Underlying field_def was nil!" if field_def_ptr.nil?
+          raise "Underlying field_def was null!" if !field_def_ptr.nil? and field_def_ptr.null?
+          field_def_ptr
+        end
+
+        ##
+        # @param field_def [::FFI::Pointer] FieldDef pointer to be wrapped
+        # @param _ [Object] Unused
+        def from_native(field_def, _ = nil)
+          return nil if field_def.nil? or field_def.null?
+          file_def = Google::Protobuf::FFI.file_def_by_raw_field_def(field_def)
+          descriptor_from_file_def(file_def, field_def)
+        end
+      end
+
+      def self.new(*arguments, &block)
+        raise "Descriptor objects may not be created from Ruby."
+      end
+
+      def to_s
+        inspect
+      end
+
+      def inspect
+        "#{self.class.name}: #{name}"
+      end
+
+      def name
+        @name ||= Google::Protobuf::FFI.get_full_name(self)
+      end
+
+      def json_name
+        @json_name ||= Google::Protobuf::FFI.get_json_name(self)
+      end
+
+      def number
+        @number ||= Google::Protobuf::FFI.get_number(self)
+      end
+
+      def type
+        @type ||= Google::Protobuf::FFI.get_type(self)
+      end
+
+      # DEPRECATED: Use required? or repeated? instead.
+      def label
+        @label ||= Google::Protobuf::FFI.get_label(self)
+      end
+
+      def default
+        return nil if Google::Protobuf::FFI.is_sub_message(self)
+        if Google::Protobuf::FFI.is_repeated(self)
+          message_value = Google::Protobuf::FFI::MessageValue.new
+        else
+          message_value = Google::Protobuf::FFI.get_default(self)
+        end
+        enum_def = Google::Protobuf::FFI.get_subtype_as_enum(self)
+        if enum_def.null?
+          convert_upb_to_ruby message_value, c_type
+        else
+          convert_upb_to_ruby message_value, c_type, enum_def
+        end
+      end
+
+      def submsg_name
+        if defined? @submsg_name
+          @submsg_name
+        else
+          @submsg_name = case c_type
+            when :enum
+              Google::Protobuf::FFI.get_enum_fullname Google::Protobuf::FFI.get_subtype_as_enum self
+            when :message
+              Google::Protobuf::FFI.get_message_fullname Google::Protobuf::FFI.get_subtype_as_message self
+            else
+              nil
+            end
+        end
+      end
+
+      ##
+      # Tests if this field has been set on the argument message.
+      #
+      # @param msg [Google::Protobuf::Message]
+      # @return [Object] Value of the field on this message.
+      # @raise [TypeError] If the field is not defined on this message.
+      def get(msg)
+        if msg.class.descriptor == Google::Protobuf::FFI.get_containing_message_def(self)
+          msg.send :get_field, self
+        else
+          raise TypeError.new "get method called on wrong message type"
+        end
+      end
+
+      def subtype
+        if defined? @subtype
+          @subtype
+        else
+          @subtype = case c_type
+            when :enum
+              Google::Protobuf::FFI.get_subtype_as_enum(self)
+            when :message
+              Google::Protobuf::FFI.get_subtype_as_message(self)
+            else
+              nil
+            end
+        end
+      end
+
+      ##
+      # Tests if this field has been set on the argument message.
+      #
+      # @param msg [Google::Protobuf::Message]
+      # @return [Boolean] True iff message has this field set
+      # @raise [TypeError] If this field does not exist on the message
+      # @raise [ArgumentError] If this field does not track presence
+      def has?(msg)
+        if msg.class.descriptor != Google::Protobuf::FFI.get_containing_message_def(self)
+          raise TypeError.new "has method called on wrong message type"
+        end
+        unless has_presence?
+          raise ArgumentError.new "does not track presence"
+        end
+
+        Google::Protobuf::FFI.get_message_has msg.instance_variable_get(:@msg), self
+      end
+
+      ##
+      # Tests if this field tracks presence.
+      #
+      # @return [Boolean] True iff this field tracks presence
+      def has_presence?
+        @has_presence ||= Google::Protobuf::FFI.get_has_presence(self)
+      end
+
+      ##
+      # Tests if this is a repeated field that uses packed encoding.
+      #
+      # @return [Boolean] True iff this field is packed
+      def is_packed?
+        @is_packed ||= Google::Protobuf::FFI.get_is_packed(self)
+      end
+
+      # @param msg [Google::Protobuf::Message]
+      def clear(msg)
+        if msg.class.descriptor != Google::Protobuf::FFI.get_containing_message_def(self)
+          raise TypeError.new "clear method called on wrong message type"
+        end
+        Google::Protobuf::FFI.clear_message_field msg.instance_variable_get(:@msg), self
+        nil
+      end
+
+      ##
+      # call-seq:
+      #     FieldDescriptor.set(message, value)
+      #
+      # Sets the value corresponding to this field to the given value on the given
+      # message. Raises an exception if message is of the wrong type. Performs the
+      # ordinary type-checks for field setting.
+      #
+      # @param msg [Google::Protobuf::Message]
+      # @param value [Object]
+      def set(msg, value)
+        if msg.class.descriptor != Google::Protobuf::FFI.get_containing_message_def(self)
+          raise TypeError.new "set method called on wrong message type"
+        end
+        unless set_value_on_message value, msg.instance_variable_get(:@msg), msg.instance_variable_get(:@arena)
+          raise RuntimeError.new "allocation failed"
+        end
+        nil
+      end
+
+      def map?
+        @map ||= Google::Protobuf::FFI.is_map self
+      end
+
+      def required?
+        @required ||= Google::Protobuf::FFI.is_required self
+      end
+
+      def repeated?
+        @repeated ||= Google::Protobuf::FFI.is_repeated self
+      end
+
+      def sub_message?
+        @sub_message ||= Google::Protobuf::FFI.is_sub_message self
+      end
+
+      def wrapper?
+        if defined? @wrapper
+          @wrapper
+        else
+          message_descriptor = Google::Protobuf::FFI.get_subtype_as_message(self)
+          @wrapper = message_descriptor.nil? ? false : message_descriptor.send(:wrapper?)
+        end
+      end
+
+      def options
+        @options ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.field_options(self, size_ptr, temporary_arena)
+          opts = Google::Protobuf::FieldOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+          opts.clear_features()
+          opts.freeze
+        end
+      end
+
+      def to_proto
+        @to_proto ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.field_to_proto(self, size_ptr, temporary_arena)
+          Google::Protobuf::FieldDescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+        end
+      end
+
+      private
+
+      def initialize(field_def, descriptor_pool)
+        @field_def = field_def
+        @descriptor_pool = descriptor_pool
+      end
+
+      def self.private_constructor(field_def, descriptor_pool)
+        instance = allocate
+        instance.send(:initialize, field_def, descriptor_pool)
+        instance
+      end
+
+      # TODO Can this be added to the public API?
+      def real_containing_oneof
+        @real_containing_oneof ||= Google::Protobuf::FFI.real_containing_oneof self
+      end
+
+      # Implementation details below are subject to breaking changes without
+      # warning and are intended for use only within the gem.
+
+      ##
+      # Sets the field this FieldDescriptor represents to the given value on the given message.
+      # @param value [Object] Value to be set
+      # @param msg [::FFI::Pointer] Pointer the the upb_Message
+      # @param arena [Arena] Arena of the message that owns msg
+      def set_value_on_message(value, msg, arena, wrap: false)
+        message_to_alter = msg
+        field_def_to_set = self
+        if map?
+          raise TypeError.new "Expected map" unless value.is_a? Google::Protobuf::Map
+          message_descriptor = subtype
+
+          key_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 1)
+          key_field_type = Google::Protobuf::FFI.get_type(key_field_def)
+          raise TypeError.new "Map key type does not match field's key type" unless key_field_type == value.send(:key_type)
+
+          value_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 2)
+          value_field_type = Google::Protobuf::FFI.get_type(value_field_def)
+          raise TypeError.new "Map value type does not match field's value type" unless value_field_type == value.send(:value_type)
+
+          raise TypeError.new "Map value type has wrong message/enum class" unless value_field_def.subtype == value.send(:descriptor)
+
+          arena.fuse(value.send(:arena))
+          message_value = Google::Protobuf::FFI::MessageValue.new
+          message_value[:map_val] = value.send(:map_ptr)
+        elsif repeated?
+          raise TypeError.new "Expected repeated field array" unless value.is_a? RepeatedField
+          raise TypeError.new "Repeated field array has wrong message/enum class" unless value.send(:type) == type
+          arena.fuse(value.send(:arena))
+          message_value = Google::Protobuf::FFI::MessageValue.new
+          message_value[:array_val] = value.send(:array)
+        else
+          if value.nil? and (sub_message? or !real_containing_oneof.nil?)
+            Google::Protobuf::FFI.clear_message_field message_to_alter, field_def_to_set
+            return true
+          end
+          if wrap
+            value_field_def = Google::Protobuf::FFI.get_field_by_number subtype, 1
+            type_for_conversion = Google::Protobuf::FFI.get_c_type(value_field_def)
+            raise RuntimeError.new "Not expecting to get a msg or enum when unwrapping" if [:enum, :message].include? type_for_conversion
+            message_value = convert_ruby_to_upb(value, arena, type_for_conversion, nil)
+            message_to_alter = Google::Protobuf::FFI.get_mutable_message(msg, self, arena)[:msg]
+            field_def_to_set = value_field_def
+          else
+            message_value = convert_ruby_to_upb(value, arena, c_type, subtype)
+          end
+        end
+        Google::Protobuf::FFI.set_message_field message_to_alter, field_def_to_set, message_value, arena
+      end
+
+      def c_type
+        @c_type ||= Google::Protobuf::FFI.get_c_type(self)
+      end
+    end
+
+    class FFI
+      # MessageDef
+      attach_function :get_field_by_index,   :upb_MessageDef_Field,                  [Descriptor, :int], FieldDescriptor
+      attach_function :get_field_by_name,    :upb_MessageDef_FindFieldByNameWithSize,[Descriptor, :string, :size_t], FieldDescriptor
+      attach_function :get_field_by_number,  :upb_MessageDef_FindFieldByNumber,      [Descriptor, :uint32_t], FieldDescriptor
+
+      # FieldDescriptor
+      attach_function :field_options,              :FieldDescriptor_serialized_options, [FieldDescriptor, :pointer, Internal::Arena], :pointer
+      attach_function :get_containing_message_def, :upb_FieldDef_ContainingType,        [FieldDescriptor], Descriptor
+      attach_function :get_c_type,                 :upb_FieldDef_CType,                 [FieldDescriptor], CType
+      attach_function :get_default,                :upb_FieldDef_Default,               [FieldDescriptor], MessageValue.by_value
+      attach_function :get_subtype_as_enum,        :upb_FieldDef_EnumSubDef,            [FieldDescriptor], EnumDescriptor
+      attach_function :get_has_presence,           :upb_FieldDef_HasPresence,           [FieldDescriptor], :bool
+      attach_function :get_is_packed,              :upb_FieldDef_IsPacked,              [FieldDescriptor], :bool
+      attach_function :is_map,                     :upb_FieldDef_IsMap,                 [FieldDescriptor], :bool
+      attach_function :is_required,                :upb_FieldDef_IsRequired,            [FieldDescriptor], :bool
+      attach_function :is_repeated,                :upb_FieldDef_IsRepeated,            [FieldDescriptor], :bool
+      attach_function :is_sub_message,             :upb_FieldDef_IsSubMessage,          [FieldDescriptor], :bool
+      attach_function :get_json_name,              :upb_FieldDef_JsonName,              [FieldDescriptor], :string
+      attach_function :get_label,                  :upb_FieldDef_Label,                 [FieldDescriptor], Label
+      attach_function :get_subtype_as_message,     :upb_FieldDef_MessageSubDef,         [FieldDescriptor], Descriptor
+      attach_function :get_full_name,              :upb_FieldDef_Name,                  [FieldDescriptor], :string
+      attach_function :get_number,                 :upb_FieldDef_Number,                [FieldDescriptor], :uint32_t
+      attach_function :get_type,                   :upb_FieldDef_Type,                  [FieldDescriptor], FieldType
+      attach_function :file_def_by_raw_field_def,  :upb_FieldDef_File,                  [:pointer], :FileDef
+      attach_function :field_to_proto,             :FieldDescriptor_serialized_to_proto,[FieldDescriptor, :pointer, Internal::Arena], :pointer
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/file_descriptor.rb

@@ -0,0 +1,85 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class FFI
+      # FileDescriptor
+      attach_function :file_def_name,   :upb_FileDef_Name,   [:FileDef], :string
+      attach_function :file_def_pool,   :upb_FileDef_Pool,   [:FileDef], :DefPool
+      attach_function :file_options,    :FileDescriptor_serialized_options,  [:FileDef, :pointer, Internal::Arena], :pointer
+      attach_function :file_to_proto,   :FileDescriptor_serialized_to_proto,  [:FileDef, :pointer, Internal::Arena], :pointer
+    end
+
+    class FileDescriptor
+      attr :descriptor_pool, :file_def
+
+      # FFI Interface methods and setup
+      extend ::FFI::DataConverter
+      native_type ::FFI::Type::POINTER
+
+      class << self
+        prepend Google::Protobuf::Internal::TypeSafety
+        include Google::Protobuf::Internal::PointerHelper
+
+        # @param value [FileDescriptor] FileDescriptor to convert to an FFI native type
+        # @param _ [Object] Unused
+        def to_native(value, _)
+          file_def_ptr = value.nil? ? nil : value.instance_variable_get(:@file_def)
+          return ::FFI::Pointer::NULL if file_def_ptr.nil?
+          raise "Underlying file_def was null!" if file_def_ptr.null?
+          file_def_ptr
+        end
+
+        ##
+        # @param file_def [::FFI::Pointer] FileDef pointer to be wrapped
+        # @param _ [Object] Unused
+        def from_native(file_def, _ = nil)
+          return nil if file_def.nil? or file_def.null?
+          descriptor_from_file_def(file_def)
+        end
+      end
+
+      def initialize(file_def, descriptor_pool)
+        @descriptor_pool = descriptor_pool
+        @file_def = file_def
+      end
+
+      def to_s
+        inspect
+      end
+
+      def inspect
+        "#{self.class.name}: #{name}"
+      end
+
+      def name
+        Google::Protobuf::FFI.file_def_name(@file_def)
+      end
+
+      def options
+        @options ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.file_options(@file_def, size_ptr, temporary_arena)
+          opts = Google::Protobuf::FileOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+          opts.clear_features()
+          opts.freeze
+        end
+      end
+
+      def to_proto
+        @to_proto ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.file_to_proto(@file_def, size_ptr, temporary_arena)
+          Google::Protobuf::FileDescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+        end
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/internal/arena.rb

@@ -0,0 +1,60 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+##
+# Implementation details below are subject to breaking changes without
+# warning and are intended for use only within the gem.
+module Google
+  module Protobuf
+    module Internal
+      class Arena
+        # FFI Interface methods and setup
+        extend ::FFI::DataConverter
+        native_type ::FFI::Type::POINTER
+
+        class << self
+          prepend Google::Protobuf::Internal::TypeSafety
+
+          # @param value [Arena] Arena to convert to an FFI native type
+          # @param _ [Object] Unused
+          def to_native(value, _)
+            value.instance_variable_get(:@arena) || ::FFI::Pointer::NULL
+          end
+
+          ##
+          # @param value [::FFI::Pointer] Arena pointer to be wrapped
+          # @param _ [Object] Unused
+          def from_native(value, _)
+            new(value)
+          end
+        end
+
+        def initialize(pointer)
+          @arena = ::FFI::AutoPointer.new(pointer, Google::Protobuf::FFI.method(:free_arena))
+          @pinned_messages = []
+        end
+
+        def fuse(other_arena)
+          return if other_arena == self
+          unless Google::Protobuf::FFI.fuse_arena(self, other_arena)
+            raise RuntimeError.new "Unable to fuse arenas. This should never happen since Ruby does not use initial blocks"
+          end
+        end
+      end
+    end
+
+    class FFI
+      # Arena
+      attach_function :create_arena, :Arena_create,         [], Internal::Arena
+      attach_function :fuse_arena,   :upb_Arena_Fuse,       [Internal::Arena, Internal::Arena], :bool
+      # Argument takes a :pointer rather than a typed Arena here due to
+      # implementation details of FFI::AutoPointer.
+      attach_function :free_arena,   :upb_Arena_Free,       [:pointer], :void
+      attach_function :arena_malloc, :upb_Arena_Malloc,     [Internal::Arena, :size_t], :pointer
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/internal/convert.rb

@@ -0,0 +1,292 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+##
+# Implementation details below are subject to breaking changes without
+# warning and are intended for use only within the gem.
+module Google
+  module Protobuf
+    module Internal
+      module Convert
+
+        # Arena should be the
+        # @param value [Object] Value to convert
+        # @param arena [Arena] Arena that owns the Message where the MessageValue
+        #   will be set
+        # @return [Google::Protobuf::FFI::MessageValue]
+        def convert_ruby_to_upb(value, arena, c_type, msg_or_enum_def)
+          raise ArgumentError.new "Expected Descriptor or EnumDescriptor, instead got #{msg_or_enum_def.class}" unless [NilClass, Descriptor, EnumDescriptor].include? msg_or_enum_def.class
+          return_value = Google::Protobuf::FFI::MessageValue.new
+          case c_type
+          when :float
+            raise TypeError.new "Expected number type for float field '#{name}' (given #{value.class})." unless value.respond_to? :to_f
+            return_value[:float_val] = value.to_f
+          when :double
+            raise TypeError.new "Expected number type for double field '#{name}' (given #{value.class})." unless value.respond_to? :to_f
+            return_value[:double_val] = value.to_f
+          when :bool
+            raise TypeError.new "Invalid argument for boolean field '#{name}' (given #{value.class})." unless [TrueClass, FalseClass].include? value.class
+            return_value[:bool_val] = value
+          when :string
+            raise TypeError.new "Invalid argument for string field '#{name}' (given #{value.class})." unless value.is_a?(String) or value.is_a?(Symbol)
+            value = value.to_s if value.is_a?(Symbol)
+            if value.encoding == Encoding::UTF_8
+              unless value.valid_encoding?
+                raise Encoding::InvalidByteSequenceError.new "String is invalid UTF-8"
+              end
+              string_value = value
+            else
+              string_value = value.to_s.encode("UTF-8")
+            end
+            return_value[:str_val][:size] = string_value.bytesize
+            return_value[:str_val][:data] = Google::Protobuf::FFI.arena_malloc(arena, string_value.bytesize)
+            # TODO - how important is it to still use arena malloc, versus the following?
+            # buffer = ::FFI::MemoryPointer.new(:char, string_value.bytesize)
+            # buffer.put_bytes(0, string_value)
+            # return_value[:str_val][:data] = buffer
+            raise NoMemoryError.new "Cannot allocate #{string_value.bytesize} bytes for string on Arena" if return_value[:str_val][:data].nil? || return_value[:str_val][:data].null?
+            return_value[:str_val][:data].write_string(string_value)
+          when :bytes
+            raise TypeError.new "Invalid argument for bytes field '#{name}' (given #{value.class})." unless value.is_a? String
+            string_value = value.encode("ASCII-8BIT")
+            return_value[:str_val][:size] = string_value.bytesize
+            return_value[:str_val][:data] = Google::Protobuf::FFI.arena_malloc(arena, string_value.bytesize)
+            raise NoMemoryError.new "Cannot allocate #{string_value.bytesize} bytes for bytes on Arena" if return_value[:str_val][:data].nil? || return_value[:str_val][:data].null?
+            return_value[:str_val][:data].write_string_length(string_value, string_value.bytesize)
+          when :message
+            raise TypeError.new "nil message not allowed here." if value.nil?
+            if value.is_a? Hash
+              raise RuntimeError.new "Attempted to initialize message from Hash for field #{name} but have no definition" if msg_or_enum_def.nil?
+              new_message = msg_or_enum_def.msgclass.
+                send(:private_constructor, arena, initial_value: value)
+              return_value[:msg_val] = new_message.instance_variable_get(:@msg)
+              return return_value
+            end
+
+            descriptor = value.class.respond_to?(:descriptor) ? value.class.descriptor : nil
+            if descriptor != msg_or_enum_def
+              wkt = Google::Protobuf::FFI.get_well_known_type(msg_or_enum_def)
+              case wkt
+              when :Timestamp
+                raise TypeError.new "Invalid type #{value.class} to assign to submessage field '#{name}'." unless value.kind_of? Time
+                new_message = Google::Protobuf::FFI.new_message_from_def Google::Protobuf::FFI.get_mini_table(msg_or_enum_def), arena
+                sec = Google::Protobuf::FFI::MessageValue.new
+                sec[:int64_val] = value.tv_sec
+                sec_field_def = Google::Protobuf::FFI.get_field_by_number msg_or_enum_def, 1
+                raise "Should be impossible" unless Google::Protobuf::FFI.set_message_field new_message, sec_field_def, sec, arena
+                nsec_field_def = Google::Protobuf::FFI.get_field_by_number msg_or_enum_def, 2
+                nsec = Google::Protobuf::FFI::MessageValue.new
+                nsec[:int32_val] = value.tv_nsec
+                raise "Should be impossible" unless Google::Protobuf::FFI.set_message_field new_message, nsec_field_def, nsec, arena
+                return_value[:msg_val] = new_message
+              when :Duration
+                raise TypeError.new "Invalid type #{value.class} to assign to submessage field '#{name}'." unless value.kind_of? Numeric
+                new_message = Google::Protobuf::FFI.new_message_from_def Google::Protobuf::FFI.get_mini_table(msg_or_enum_def), arena
+                sec = Google::Protobuf::FFI::MessageValue.new
+                sec[:int64_val] = value
+                sec_field_def = Google::Protobuf::FFI.get_field_by_number msg_or_enum_def, 1
+                raise "Should be impossible" unless Google::Protobuf::FFI.set_message_field new_message, sec_field_def, sec, arena
+                nsec_field_def = Google::Protobuf::FFI.get_field_by_number msg_or_enum_def, 2
+                nsec = Google::Protobuf::FFI::MessageValue.new
+                nsec[:int32_val] = ((value.to_f - value.to_i) * 1000000000).round
+                raise "Should be impossible" unless Google::Protobuf::FFI.set_message_field new_message, nsec_field_def, nsec, arena
+                return_value[:msg_val] = new_message
+              else
+                raise TypeError.new "Invalid type #{value.class} to assign to submessage field '#{name}'."
+              end
+            else
+              arena.fuse(value.instance_variable_get(:@arena))
+              return_value[:msg_val] = value.instance_variable_get :@msg
+            end
+          when :enum
+            return_value[:int32_val] = case value
+              when Numeric
+                value.to_i
+              when String, Symbol
+                enum_number = EnumDescriptor.send(:lookup_name, msg_or_enum_def, value.to_s)
+                #TODO add the bad value to the error message after tests pass
+                raise RangeError.new "Unknown symbol value for enum field '#{name}'." if enum_number.nil?
+                enum_number
+              else
+                raise TypeError.new "Expected number or symbol type for enum field '#{name}'."
+              end
+          #TODO After all tests pass, improve error message across integer type by including actual offending value
+          when :int32
+            raise TypeError.new "Expected number type for integral field '#{name}' (given #{value.class})." unless value.is_a? Numeric
+            raise RangeError.new "Non-integral floating point value assigned to integer field '#{name}' (given #{value.class})." if value.floor != value
+            raise RangeError.new "Value assigned to int32 field '#{name}' (given #{value.class}) with more than 32-bits." unless value.to_i.bit_length < 32
+            return_value[:int32_val] = value.to_i
+          when :uint32
+            raise TypeError.new "Expected number type for integral field '#{name}' (given #{value.class})." unless value.is_a? Numeric
+            raise RangeError.new "Non-integral floating point value assigned to integer field '#{name}' (given #{value.class})." if value.floor != value
+            raise RangeError.new "Assigning negative value to unsigned integer field '#{name}' (given #{value.class})." if value < 0
+            raise RangeError.new "Value assigned to uint32 field '#{name}' (given #{value.class}) with more than 32-bits." unless value.to_i.bit_length < 33
+            return_value[:uint32_val] = value.to_i
+          when :int64
+            raise TypeError.new "Expected number type for integral field '#{name}' (given #{value.class})." unless value.is_a? Numeric
+            raise RangeError.new "Non-integral floating point value assigned to integer field '#{name}' (given #{value.class})." if value.floor != value
+            raise RangeError.new "Value assigned to int64 field '#{name}' (given #{value.class}) with more than 64-bits." unless value.to_i.bit_length < 64
+            return_value[:int64_val] = value.to_i
+          when :uint64
+            raise TypeError.new "Expected number type for integral field '#{name}' (given #{value.class})." unless value.is_a? Numeric
+            raise RangeError.new "Non-integral floating point value assigned to integer field '#{name}' (given #{value.class})." if value.floor != value
+            raise RangeError.new "Assigning negative value to unsigned integer field '#{name}' (given #{value.class})." if value < 0
+            raise RangeError.new "Value assigned to uint64 field '#{name}' (given #{value.class}) with more than 64-bits." unless value.to_i.bit_length < 65
+            return_value[:uint64_val] = value.to_i
+          else
+            raise RuntimeError.new "Unsupported type #{c_type}"
+          end
+          return_value
+        end
+
+        ##
+        # Safe to call without an arena if the caller has checked that c_type
+        # is not :message.
+        # @param message_value [Google::Protobuf::FFI::MessageValue] Value to be converted.
+        # @param c_type [Google::Protobuf::FFI::CType] Enum representing the type of message_value
+        # @param msg_or_enum_def [::FFI::Pointer] Pointer to the MsgDef or EnumDef definition
+        # @param arena [Google::Protobuf::Internal::Arena] Arena to create Message instances, if needed
+        def convert_upb_to_ruby(message_value, c_type, msg_or_enum_def = nil, arena = nil)
+          throw TypeError.new "Expected MessageValue but got #{message_value.class}" unless message_value.is_a? Google::Protobuf::FFI::MessageValue
+
+          case c_type
+          when :bool
+            message_value[:bool_val]
+          when :int32
+            message_value[:int32_val]
+          when :uint32
+            message_value[:uint32_val]
+          when :double
+            message_value[:double_val]
+          when :int64
+            message_value[:int64_val]
+          when :uint64
+            message_value[:uint64_val]
+          when :string
+            if message_value[:str_val][:size].zero?
+              ""
+            else
+              message_value[:str_val][:data].read_string_length(message_value[:str_val][:size]).force_encoding("UTF-8").freeze
+            end
+          when :bytes
+            if message_value[:str_val][:size].zero?
+              ""
+            else
+              message_value[:str_val][:data].read_string_length(message_value[:str_val][:size]).force_encoding("ASCII-8BIT").freeze
+            end
+          when :float
+            message_value[:float_val]
+          when :enum
+            EnumDescriptor.send(:lookup_value, msg_or_enum_def, message_value[:int32_val]) || message_value[:int32_val]
+          when :message
+            raise "Null Arena for message" if arena.nil?
+            Descriptor.send(:get_message, message_value[:msg_val], msg_or_enum_def, arena)
+          else
+            raise RuntimeError.new "Unexpected type #{c_type}"
+          end
+        end
+
+        def to_h_internal(msg, message_descriptor)
+          return nil if msg.nil? or msg.null?
+          hash = {}
+          iter = ::FFI::MemoryPointer.new(:size_t, 1)
+          iter.write(:size_t, Google::Protobuf::FFI::Upb_Message_Begin)
+          message_value = Google::Protobuf::FFI::MessageValue.new
+          field_def_ptr = ::FFI::MemoryPointer.new :pointer
+
+          while Google::Protobuf::FFI::message_next(msg, message_descriptor, nil, field_def_ptr, message_value, iter) do
+            field_descriptor = FieldDescriptor.from_native field_def_ptr.get_pointer(0)
+
+            if field_descriptor.map?
+              hash_entry = map_create_hash(message_value[:map_val], field_descriptor)
+            elsif field_descriptor.repeated?
+              hash_entry = repeated_field_create_array(message_value[:array_val], field_descriptor, field_descriptor.type)
+            else
+              hash_entry = scalar_create_hash(message_value, field_descriptor.type, field_descriptor: field_descriptor)
+            end
+
+            hash[field_descriptor.name.to_sym] = hash_entry
+          end
+
+          hash
+        end
+
+        def map_create_hash(map_ptr, field_descriptor)
+          return {} if map_ptr.nil? or map_ptr.null?
+          return_value = {}
+
+          message_descriptor = field_descriptor.send(:subtype)
+          key_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 1)
+          key_field_type = Google::Protobuf::FFI.get_type(key_field_def)
+
+          value_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 2)
+          value_field_type = Google::Protobuf::FFI.get_type(value_field_def)
+
+          iter = ::FFI::MemoryPointer.new(:size_t, 1)
+          iter.write(:size_t, Google::Protobuf::FFI::Upb_Map_Begin)
+          while Google::Protobuf::FFI.map_next(map_ptr, iter) do
+            iter_size_t = iter.read(:size_t)
+            key_message_value = Google::Protobuf::FFI.map_key(map_ptr, iter_size_t)
+            value_message_value = Google::Protobuf::FFI.map_value(map_ptr, iter_size_t)
+            hash_key = convert_upb_to_ruby(key_message_value, key_field_type)
+            hash_value = scalar_create_hash(value_message_value, value_field_type, msg_or_enum_descriptor: value_field_def.subtype)
+            return_value[hash_key] = hash_value
+          end
+          return_value
+        end
+
+        def repeated_field_create_array(array, field_descriptor, type)
+          return_value = []
+          n = (array.nil? || array.null?) ? 0 : Google::Protobuf::FFI.array_size(array)
+          0.upto(n - 1) do |i|
+            message_value = Google::Protobuf::FFI.get_msgval_at(array, i)
+            return_value << scalar_create_hash(message_value, type, field_descriptor: field_descriptor)
+          end
+          return_value
+        end
+
+        # @param field_descriptor [FieldDescriptor] Descriptor of the field to convert to a hash.
+        def scalar_create_hash(message_value, type, field_descriptor: nil, msg_or_enum_descriptor: nil)
+          if [:message, :enum].include? type
+            if field_descriptor.nil?
+              if msg_or_enum_descriptor.nil?
+                raise "scalar_create_hash requires either a FieldDescriptor, MessageDescriptor, or EnumDescriptor as an argument, but received only nil"
+              end
+            else
+              msg_or_enum_descriptor = field_descriptor.subtype
+            end
+            if type == :message
+              to_h_internal(message_value[:msg_val], msg_or_enum_descriptor)
+            elsif type == :enum
+              convert_upb_to_ruby message_value, type, msg_or_enum_descriptor
+            end
+          else
+            convert_upb_to_ruby message_value, type
+          end
+        end
+
+        def message_value_deep_copy(message_value, type, descriptor, arena)
+          raise unless message_value.is_a? Google::Protobuf::FFI::MessageValue
+          new_message_value = Google::Protobuf::FFI::MessageValue.new
+          case type
+          when :string, :bytes
+            # TODO - how important is it to still use arena malloc, versus using FFI MemoryPointers?
+            new_message_value[:str_val][:size] = message_value[:str_val][:size]
+            new_message_value[:str_val][:data] = Google::Protobuf::FFI.arena_malloc(arena, message_value[:str_val][:size])
+            raise NoMemoryError.new "Allocation failed" if  new_message_value[:str_val][:data].nil? or new_message_value[:str_val][:data].null?
+            Google::Protobuf::FFI.memcpy(new_message_value[:str_val][:data], message_value[:str_val][:data], message_value[:str_val][:size])
+          when :message
+            new_message_value[:msg_val] = descriptor.msgclass.send(:deep_copy, message_value[:msg_val], arena).instance_variable_get(:@msg)
+          else
+            Google::Protobuf::FFI.memcpy(new_message_value.to_ptr, message_value.to_ptr, Google::Protobuf::FFI::MessageValue.size)
+          end
+          new_message_value
+        end
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/internal/pointer_helper.rb

@@ -0,0 +1,36 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2023 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    module Internal
+      module PointerHelper
+        # Utility code to defensively walk the object graph from a file_def to
+        # the pool, and either retrieve the wrapper object for the given pointer
+        # or create one. Assumes that the caller is the wrapper class for the
+        # given pointer and that it implements `private_constructor`.
+        def descriptor_from_file_def(file_def, pointer = nil)
+          pointer = file_def if pointer.nil?
+          raise RuntimeError.new "FileDef is nil" if file_def.nil?
+          raise RuntimeError.new "FileDef is null" if file_def.null?
+          pool_def = Google::Protobuf::FFI.file_def_pool file_def
+          raise RuntimeError.new "PoolDef is nil" if pool_def.nil?
+          raise RuntimeError.new "PoolDef is null" if pool_def.null?
+          pool = Google::Protobuf::OBJECT_CACHE.get(pool_def.address)
+          raise "Cannot find pool in ObjectCache!" if pool.nil?
+          descriptor = pool.descriptor_class_by_def[pointer.address]
+          if descriptor.nil?
+            pool.descriptor_class_by_def[pointer.address] = private_constructor(pointer, pool)
+          else
+            descriptor
+          end
+        end
+      end
+    end
+  end
+end
+

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/internal/type_safety.rb

@@ -0,0 +1,25 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+# A to_native DataConverter method that raises an error if the value is not of the same type.
+# Adapted from to https://www.varvet.com/blog/advanced-topics-in-ruby-ffi/
+module Google
+  module Protobuf
+    module Internal
+      module TypeSafety
+        def to_native(value, ctx = nil)
+          if value.kind_of?(self) or value.nil?
+            super
+          else
+            raise TypeError.new "Expected a kind of #{name}, was #{value.class}"
+          end
+        end
+      end
+    end
+  end
+end
+

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/map.rb

@@ -0,0 +1,433 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class FFI
+      # Map
+      attach_function :map_clear,   :upb_Map_Clear,         [:Map], :void
+      attach_function :map_delete,  :upb_Map_Delete,        [:Map, MessageValue.by_value, MessageValue.by_ref], :bool
+      attach_function :map_get,     :upb_Map_Get,           [:Map, MessageValue.by_value, MessageValue.by_ref], :bool
+      attach_function :create_map,  :upb_Map_New,           [Internal::Arena, CType, CType], :Map
+      attach_function :map_size,    :upb_Map_Size,          [:Map], :size_t
+      attach_function :map_set,     :upb_Map_Set,           [:Map, MessageValue.by_value, MessageValue.by_value, Internal::Arena], :bool
+      attach_function :map_freeze,  :upb_Map_Freeze,        [:Map, MiniTable.by_ref], :void
+      attach_function :map_frozen?, :upb_Map_IsFrozen,      [:Map], :bool
+
+      # MapIterator
+      attach_function :map_next,    :upb_MapIterator_Next,  [:Map, :pointer], :bool
+      attach_function :map_done,    :upb_MapIterator_Done,  [:Map, :size_t], :bool
+      attach_function :map_key,     :upb_MapIterator_Key,   [:Map, :size_t], MessageValue.by_value
+      attach_function :map_value,   :upb_MapIterator_Value, [:Map, :size_t], MessageValue.by_value
+    end
+    class Map
+      include Enumerable
+      ##
+      # call-seq:
+      #    Map.new(key_type, value_type, value_typeclass = nil, init_hashmap = {})
+      #    => new map
+      #
+      # Allocates a new Map container. This constructor may be called with 2, 3, or 4
+      # arguments. The first two arguments are always present and are symbols (taking
+      # on the same values as field-type symbols in message descriptors) that
+      # indicate the type of the map key and value fields.
+      #
+      # The supported key types are: :int32, :int64, :uint32, :uint64, :bool,
+      # :string, :bytes.
+      #
+      # The supported value types are: :int32, :int64, :uint32, :uint64, :bool,
+      # :string, :bytes, :enum, :message.
+      #
+      # The third argument, value_typeclass, must be present if value_type is :enum
+      # or :message. As in RepeatedField#new, this argument must be a message class
+      # (for :message) or enum module (for :enum).
+      #
+      # The last argument, if present, provides initial content for map. Note that
+      # this may be an ordinary Ruby hashmap or another Map instance with identical
+      # key and value types. Also note that this argument may be present whether or
+      # not value_typeclass is present (and it is unambiguously separate from
+      # value_typeclass because value_typeclass's presence is strictly determined by
+      # value_type). The contents of this initial hashmap or Map instance are
+      # shallow-copied into the new Map: the original map is unmodified, but
+      # references to underlying objects will be shared if the value type is a
+      # message type.
+      def self.new(key_type, value_type, value_typeclass = nil, init_hashmap = {})
+        instance = allocate
+        # TODO This argument mangling doesn't agree with the type signature,
+        # but does align with the text of the comments and is required to make unit tests pass.
+        if init_hashmap.empty? and ![:enum, :message].include?(value_type)
+          init_hashmap = value_typeclass
+          value_typeclass = nil
+        end
+        instance.send(:initialize, key_type, value_type, value_type_class: value_typeclass, initial_values: init_hashmap)
+        instance
+      end
+
+      ##
+      # call-seq:
+      #     Map.keys => [list_of_keys]
+      #
+      # Returns the list of keys contained in the map, in unspecified order.
+      def keys
+        return_value = []
+        internal_iterator do |iterator|
+          key_message_value = Google::Protobuf::FFI.map_key(@map_ptr, iterator)
+          return_value << convert_upb_to_ruby(key_message_value, key_type)
+        end
+        return_value
+      end
+
+      ##
+      # call-seq:
+      #     Map.values => [list_of_values]
+      #
+      # Returns the list of values contained in the map, in unspecified order.
+      def values
+        return_value = []
+        internal_iterator do |iterator|
+          value_message_value = Google::Protobuf::FFI.map_value(@map_ptr, iterator)
+          return_value << convert_upb_to_ruby(value_message_value, value_type, descriptor, arena)
+        end
+        return_value
+      end
+
+      ##
+      # call-seq:
+      #    Map.[](key) => value
+      #
+      #  Accesses the element at the given key. Throws an exception if the key type is
+      #  incorrect. Returns nil when the key is not present in the map.
+      def [](key)
+        value = Google::Protobuf::FFI::MessageValue.new
+        key_message_value = convert_ruby_to_upb(key, arena, key_type, nil)
+        if Google::Protobuf::FFI.map_get(@map_ptr, key_message_value, value)
+           convert_upb_to_ruby(value, value_type, descriptor, arena)
+        end
+      end
+
+      ##
+      # call-seq:
+      #     Map.[]=(key, value) => value
+      #
+      # Inserts or overwrites the value at the given key with the given new value.
+      # Throws an exception if the key type is incorrect. Returns the new value that
+      # was just inserted.
+      def []=(key, value)
+        raise FrozenError.new "can't modify frozen #{self.class}" if frozen?
+        key_message_value = convert_ruby_to_upb(key, arena, key_type, nil)
+        value_message_value = convert_ruby_to_upb(value, arena, value_type, descriptor)
+        Google::Protobuf::FFI.map_set(@map_ptr, key_message_value, value_message_value, arena)
+        value
+      end
+
+      def has_key?(key)
+        key_message_value = convert_ruby_to_upb(key, arena, key_type, nil)
+        Google::Protobuf::FFI.map_get(@map_ptr, key_message_value, nil)
+      end
+
+      ##
+      # call-seq:
+      #    Map.delete(key) => old_value
+      #
+      # Deletes the value at the given key, if any, returning either the old value or
+      # nil if none was present. Throws an exception if the key is of the wrong type.
+      def delete(key)
+        raise FrozenError.new "can't modify frozen #{self.class}" if frozen?
+        value = Google::Protobuf::FFI::MessageValue.new
+        key_message_value = convert_ruby_to_upb(key, arena, key_type, nil)
+        if Google::Protobuf::FFI.map_delete(@map_ptr, key_message_value, value)
+          convert_upb_to_ruby(value, value_type, descriptor, arena)
+        else
+          nil
+        end
+      end
+
+      def clear
+        raise FrozenError.new "can't modify frozen #{self.class}" if frozen?
+        Google::Protobuf::FFI.map_clear(@map_ptr)
+        nil
+      end
+
+      def length
+        Google::Protobuf::FFI.map_size(@map_ptr)
+      end
+      alias size length
+
+      ##
+      # Is this object frozen?
+      # Returns true if either this Ruby wrapper or the underlying
+      # representation are frozen. Freezes the wrapper if the underlying
+      # representation is already frozen but this wrapper isn't.
+      def frozen?
+        unless Google::Protobuf::FFI.map_frozen? @map_ptr
+          raise RuntimeError.new "Ruby frozen Map with mutable representation" if super
+          return false
+        end
+        method(:freeze).super_method.call unless super
+        true
+      end
+
+      ##
+      # Freezes the map object. We have to intercept this so we can freeze the
+      # underlying representation, not just the Ruby wrapper. Returns self.
+      def freeze
+        if method(:frozen?).super_method.call
+          unless Google::Protobuf::FFI.map_frozen? @map_ptr
+            raise RuntimeError.new "Underlying representation of map still mutable despite frozen wrapper"
+          end
+          return self
+        end
+        unless Google::Protobuf::FFI.map_frozen? @map_ptr
+          mini_table = (value_type == :message) ? Google::Protobuf::FFI.get_mini_table(@descriptor) : nil
+          Google::Protobuf::FFI.map_freeze(@map_ptr, mini_table)
+        end
+        super
+      end
+
+      ##
+      # call-seq:
+      #    Map.dup => new_map
+      #
+      # Duplicates this map with a shallow copy. References to all non-primitive
+      # element objects (e.g., submessages) are shared.
+      def dup
+        internal_dup
+      end
+      alias clone dup
+
+      ##
+      # call-seq:
+      #     Map.==(other) => boolean
+      #
+      # Compares this map to another. Maps are equal if they have identical key sets,
+      # and for each key, the values in both maps compare equal. Elements are
+      # compared as per normal Ruby semantics, by calling their :== methods (or
+      # performing a more efficient comparison for primitive types).
+      #
+      # Maps with dissimilar key types or value types/typeclasses are never equal,
+      # even if value comparison (for example, between integers and floats) would
+      # have otherwise indicated that every element has equal value.
+      def ==(other)
+        if other.is_a? Hash
+          other = self.class.send(:private_constructor, key_type, value_type, descriptor, initial_values: other)
+        elsif !other.is_a? Google::Protobuf::Map
+          return false
+        end
+
+        return true if object_id == other.object_id
+        return false if key_type != other.send(:key_type) or value_type != other.send(:value_type) or descriptor != other.send(:descriptor) or length != other.length
+        other_map_ptr = other.send(:map_ptr)
+        each_msg_val do |key_message_value, value_message_value|
+          other_value = Google::Protobuf::FFI::MessageValue.new
+          return false unless Google::Protobuf::FFI.map_get(other_map_ptr, key_message_value, other_value)
+          return false unless Google::Protobuf::FFI.message_value_equal(value_message_value, other_value, value_type, descriptor)
+        end
+        true
+      end
+
+      def hash
+        return_value = 0
+        each_msg_val do |key_message_value, value_message_value|
+          return_value += Google::Protobuf::FFI.message_value_hash(key_message_value, key_type, nil, 0)
+          return_value += Google::Protobuf::FFI.message_value_hash(value_message_value, value_type, descriptor, 0)
+        end
+        return_value
+      end
+
+      ##
+      # call-seq:
+      #    Map.to_h => {}
+      #
+      # Returns a Ruby Hash object containing all the values within the map
+      def to_h
+        return {} if map_ptr.nil? or map_ptr.null?
+        return_value = {}
+        each_msg_val do |key_message_value, value_message_value|
+          hash_key = convert_upb_to_ruby(key_message_value, key_type)
+          hash_value = scalar_create_hash(value_message_value, value_type, msg_or_enum_descriptor: descriptor)
+          return_value[hash_key] = hash_value
+        end
+        return_value
+      end
+
+      def inspect
+        key_value_pairs = []
+        each_msg_val do |key_message_value, value_message_value|
+          key_string = convert_upb_to_ruby(key_message_value, key_type).inspect
+          if value_type == :message
+            sub_msg_descriptor = Google::Protobuf::FFI.get_subtype_as_message(descriptor)
+            value_string = sub_msg_descriptor.msgclass.send(:inspect_internal, value_message_value[:msg_val])
+          else
+            value_string = convert_upb_to_ruby(value_message_value, value_type, descriptor).inspect
+          end
+          key_value_pairs << "#{key_string}=>#{value_string}"
+        end
+        "{#{key_value_pairs.join(", ")}}"
+      end
+
+      ##
+      # call-seq:
+      #    Map.merge(other_map) => map
+      #
+      # Copies key/value pairs from other_map into a copy of this map. If a key is
+      # set in other_map and this map, the value from other_map overwrites the value
+      # in the new copy of this map. Returns the new copy of this map with merged
+      # contents.
+      def merge(other)
+        internal_merge(other)
+      end
+
+      ##
+      # call-seq:
+      #    Map.each(&block)
+      #
+      # Invokes &block on each |key, value| pair in the map, in unspecified order.
+      # Note that Map also includes Enumerable; map thus acts like a normal Ruby
+      # sequence.
+      def each &block
+        each_msg_val do |key_message_value, value_message_value|
+          key_value = convert_upb_to_ruby(key_message_value, key_type)
+          value_value = convert_upb_to_ruby(value_message_value, value_type, descriptor, arena)
+          yield key_value, value_value
+        end
+        nil
+      end
+
+      private
+      attr :arena, :map_ptr, :key_type, :value_type, :descriptor, :name
+
+      include Google::Protobuf::Internal::Convert
+
+      def internal_iterator
+        iter = ::FFI::MemoryPointer.new(:size_t, 1)
+        iter.write(:size_t, Google::Protobuf::FFI::Upb_Map_Begin)
+        while Google::Protobuf::FFI.map_next(@map_ptr, iter) do
+          iter_size_t = iter.read(:size_t)
+          yield iter_size_t
+        end
+      end
+
+      def each_msg_val &block
+        internal_iterator do |iterator|
+          key_message_value = Google::Protobuf::FFI.map_key(@map_ptr, iterator)
+          value_message_value = Google::Protobuf::FFI.map_value(@map_ptr, iterator)
+          yield key_message_value, value_message_value
+        end
+      end
+
+      def internal_dup
+        instance = self.class.send(:private_constructor, key_type, value_type, descriptor, arena: arena)
+        new_map_ptr = instance.send(:map_ptr)
+        each_msg_val do |key_message_value, value_message_value|
+          Google::Protobuf::FFI.map_set(new_map_ptr, key_message_value, value_message_value, arena)
+        end
+        instance
+      end
+
+      def internal_merge_into_self(other)
+        case other
+        when Hash
+          other.each do |key, value|
+            key_message_value = convert_ruby_to_upb(key, arena, key_type, nil)
+            value_message_value = convert_ruby_to_upb(value, arena, value_type, descriptor)
+            Google::Protobuf::FFI.map_set(@map_ptr, key_message_value, value_message_value, arena)
+          end
+        when Google::Protobuf::Map
+          unless key_type == other.send(:key_type) and value_type == other.send(:value_type) and descriptor == other.descriptor
+            raise ArgumentError.new "Attempt to merge Map with mismatching types" #TODO Improve error message by adding type information
+          end
+          arena.fuse(other.send(:arena))
+          iter = ::FFI::MemoryPointer.new(:size_t, 1)
+          iter.write(:size_t, Google::Protobuf::FFI::Upb_Map_Begin)
+          other.send(:each_msg_val) do |key_message_value, value_message_value|
+            Google::Protobuf::FFI.map_set(@map_ptr, key_message_value, value_message_value, arena)
+          end
+        else
+          raise ArgumentError.new "Unknown type merging into Map" #TODO improve this error message by including type information
+        end
+        self
+      end
+
+      def internal_merge(other)
+        internal_dup.internal_merge_into_self(other)
+      end
+
+      def initialize(key_type, value_type, value_type_class: nil, initial_values: nil, arena: nil, map: nil, descriptor: nil, name: nil)
+        @name = name || 'Map'
+
+        unless [:int32, :int64, :uint32, :uint64, :bool, :string, :bytes].include? key_type
+          raise ArgumentError.new "Invalid key type for map." #TODO improve error message to include what type was passed
+        end
+        @key_type = key_type
+
+        unless [:int32, :int64, :uint32, :uint64, :bool, :string, :bytes, :enum, :message].include? value_type
+          raise ArgumentError.new "Invalid value type for map." #TODO improve error message to include what type was passed
+        end
+        @value_type = value_type
+
+        if !descriptor.nil?
+          raise ArgumentError "Expected descriptor to be a Descriptor or EnumDescriptor" unless [EnumDescriptor, Descriptor].include? descriptor.class
+          @descriptor = descriptor
+        elsif [:message, :enum].include? value_type
+          raise ArgumentError.new "Expected at least 3 arguments for message/enum." if value_type_class.nil?
+          descriptor = value_type_class.respond_to?(:descriptor) ? value_type_class.descriptor : nil
+          raise ArgumentError.new "Type class #{value_type_class} has no descriptor. Please pass a class or enum as returned by the DescriptorPool." if descriptor.nil?
+          @descriptor = descriptor
+        else
+          @descriptor = nil
+        end
+
+        @arena = arena || Google::Protobuf::FFI.create_arena
+        @map_ptr = map || Google::Protobuf::FFI.create_map(@arena, @key_type, @value_type)
+
+        internal_merge_into_self(initial_values) unless initial_values.nil?
+
+        # Should always be the last expression of the initializer to avoid
+        # leaking references to this object before construction is complete.
+        OBJECT_CACHE.try_add(@map_ptr.address, self)
+      end
+
+      ##
+      # Constructor that uses the type information from the given
+      # FieldDescriptor to configure the new Map instance.
+      # @param field [FieldDescriptor] Type information for the new Map
+      # @param arena [Arena] Owning message's arena
+      # @param value [Hash|Map] Initial value
+      # @param map [::FFI::Pointer] Existing upb_Map
+      def self.construct_for_field(field, arena: nil, value: nil, map: nil)
+        raise ArgumentError.new "Expected Hash object as initializer value for map field '#{field.name}' (given #{value.class})." unless value.nil? or value.is_a? Hash
+        instance = allocate
+        raise ArgumentError.new "Expected field with type :message, instead got #{field.class}" unless field.type == :message
+        message_descriptor = field.send(:subtype)
+        key_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 1)
+        key_field_type = Google::Protobuf::FFI.get_type(key_field_def)
+
+        value_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 2)
+        value_field_type = Google::Protobuf::FFI.get_type(value_field_def)
+        instance.send(:initialize, key_field_type, value_field_type, initial_values: value, name: field.name, arena: arena, map: map, descriptor: value_field_def.subtype)
+        instance
+      end
+
+      def self.private_constructor(key_type, value_type, descriptor, initial_values: nil, arena: nil)
+        instance = allocate
+        instance.send(:initialize, key_type, value_type, descriptor: descriptor, initial_values: initial_values, arena: arena)
+        instance
+      end
+
+      extend Google::Protobuf::Internal::Convert
+
+      def self.deep_copy(map)
+        instance = allocate
+        instance.send(:initialize, map.send(:key_type), map.send(:value_type), descriptor: map.send(:descriptor))
+        map.send(:each_msg_val) do |key_message_value, value_message_value|
+          Google::Protobuf::FFI.map_set(instance.send(:map_ptr), key_message_value, message_value_deep_copy(value_message_value, map.send(:value_type), map.send(:descriptor), instance.send(:arena)), instance.send(:arena))
+        end
+        instance
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/message.rb

@@ -0,0 +1,785 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2023 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+
+# Decorates Descriptor with the `build_message_class` method that defines
+# Message classes.
+module Google
+  module Protobuf
+    class FFI
+      # Message
+      attach_function :clear_message_field,     :upb_Message_ClearFieldByDef, [:Message, FieldDescriptor], :void
+      attach_function :get_message_value,       :upb_Message_GetFieldByDef,   [:Message, FieldDescriptor], MessageValue.by_value
+      attach_function :get_message_has,         :upb_Message_HasFieldByDef,   [:Message, FieldDescriptor], :bool
+      attach_function :set_message_field,       :upb_Message_SetFieldByDef,   [:Message, FieldDescriptor, MessageValue.by_value, Internal::Arena], :bool
+      attach_function :encode_message,          :upb_Encode,                  [:Message, MiniTable.by_ref, :size_t, Internal::Arena, :pointer, :pointer], EncodeStatus
+      attach_function :json_decode_message_detecting_nonconformance,     :upb_JsonDecodeDetectingNonconformance,   [:binary_string, :size_t, :Message, Descriptor, :DefPool, :int, Internal::Arena, Status.by_ref], :int
+      attach_function :json_encode_message,     :upb_JsonEncode,              [:Message, Descriptor, :DefPool, :int, :binary_string, :size_t, Status.by_ref], :size_t
+      attach_function :decode_message,          :upb_Decode,                  [:binary_string, :size_t, :Message, MiniTable.by_ref, :ExtensionRegistry, :int, Internal::Arena], DecodeStatus
+      attach_function :get_mutable_message,     :upb_Message_Mutable,         [:Message, FieldDescriptor, Internal::Arena], MutableMessageValue.by_value
+      attach_function :get_message_which_oneof, :upb_Message_WhichOneofByDef, [:Message, OneofDescriptor], FieldDescriptor
+      attach_function :message_discard_unknown, :upb_Message_DiscardUnknown,  [:Message, Descriptor, :DefPool, :int], :bool
+      attach_function :message_next,            :upb_Message_Next,            [:Message, Descriptor, :DefPool, :FieldDefPointer, MessageValue.by_ref, :pointer], :bool
+      attach_function :message_freeze,          :upb_Message_Freeze,          [:Message, MiniTable.by_ref], :void
+      attach_function :message_frozen?,         :upb_Message_IsFrozen,        [:Message], :bool
+      attach_function :message_shallow_copy,    :upb_Message_ShallowCopy,     [:Message, :Message, MiniTable.by_ref, Internal::Arena], :bool
+
+      # MessageValue
+      attach_function :message_value_equal,     :shared_Msgval_IsEqual,       [MessageValue.by_value, MessageValue.by_value, CType, Descriptor], :bool
+      attach_function :message_value_hash,      :shared_Msgval_GetHash,       [MessageValue.by_value, CType, Descriptor, :uint64_t], :uint64_t
+    end
+
+    class Descriptor
+      def build_message_class
+        descriptor = self
+        Class.new(Google::Protobuf::const_get(:AbstractMessage)) do
+          @descriptor = descriptor
+          class << self
+            attr_accessor :descriptor
+            private
+            attr_accessor :oneof_field_names
+            include ::Google::Protobuf::Internal::Convert
+          end
+
+          alias original_method_missing method_missing
+          def method_missing(method_name, *args)
+            method_missing_internal method_name, *args, mode: :method_missing
+          end
+
+          def respond_to_missing?(method_name, include_private = false)
+            method_missing_internal(method_name, mode: :respond_to_missing?) || super
+          end
+
+          ##
+          # Public constructor. Automatically allocates from a new Arena.
+          def self.new(initial_value = nil)
+            instance = allocate
+            instance.send(:initialize, initial_value)
+            instance
+          end
+
+          ##
+          # Is this object frozen?
+          # Returns true if either this Ruby wrapper or the underlying
+          # representation are frozen. Freezes the wrapper if the underlying
+          # representation is already frozen but this wrapper isn't.
+          def frozen?
+            unless Google::Protobuf::FFI.message_frozen? @msg
+              raise RuntimeError.new "Ruby frozen Message with mutable representation" if super
+              return false
+            end
+            method(:freeze).super_method.call unless super
+            true
+          end
+
+          ##
+          # Freezes the map object. We have to intercept this so we can freeze the
+          # underlying representation, not just the Ruby wrapper. Returns self.
+          def freeze
+            if method(:frozen?).super_method.call
+              unless Google::Protobuf::FFI.message_frozen? @msg
+                raise RuntimeError.new "Underlying representation of message still mutable despite frozen wrapper"
+              end
+              return self
+            end
+            unless Google::Protobuf::FFI.message_frozen? @msg
+              Google::Protobuf::FFI.message_freeze(@msg, Google::Protobuf::FFI.get_mini_table(self.class.descriptor))
+            end
+            super
+         end
+
+          def dup
+            mini_table = Google::Protobuf::FFI.get_mini_table(self.class.descriptor)
+            new_msg = Google::Protobuf::FFI.new_message_from_def(mini_table, @arena)
+            unless Google::Protobuf::FFI.message_shallow_copy(new_msg, @msg, mini_table, @arena)
+              raise RuntimeError.new "Failed to shallow copy message."
+            end
+            self.class.private_constructor(@arena, msg: new_msg)
+          end
+          alias clone dup
+
+          def eql?(other)
+            return false unless self.class === other
+            encoding_options = Google::Protobuf::FFI::Upb_Encode_Deterministic | Google::Protobuf::FFI::Upb_Encode_SkipUnknown
+            temporary_arena = Google::Protobuf::FFI.create_arena
+            mini_table = Google::Protobuf::FFI.get_mini_table(self.class.descriptor)
+            size_one = ::FFI::MemoryPointer.new(:size_t, 1)
+            encoding_one = ::FFI::MemoryPointer.new(:pointer, 1)
+            encoding_status = Google::Protobuf::FFI.encode_message(@msg, mini_table, encoding_options, temporary_arena, encoding_one.to_ptr, size_one)
+            raise ParseError.new "Error comparing messages due to #{encoding_status} while encoding LHS of `eql?()`" unless encoding_status == :Ok
+
+            size_two = ::FFI::MemoryPointer.new(:size_t, 1)
+            encoding_two = ::FFI::MemoryPointer.new(:pointer, 1)
+            encoding_status = Google::Protobuf::FFI.encode_message(other.instance_variable_get(:@msg), mini_table, encoding_options, temporary_arena, encoding_two.to_ptr, size_two)
+            raise ParseError.new "Error comparing messages due to #{encoding_status} while encoding RHS of `eql?()`" unless encoding_status == :Ok
+
+            if encoding_one.null? or encoding_two.null?
+              raise ParseError.new "Error comparing messages"
+            end
+            size_one.read(:size_t) == size_two.read(:size_t) and Google::Protobuf::FFI.memcmp(encoding_one.read(:pointer), encoding_two.read(:pointer), size_one.read(:size_t)).zero?
+          end
+          alias == eql?
+
+          def hash
+            encoding_options = Google::Protobuf::FFI::Upb_Encode_Deterministic | Google::Protobuf::FFI::Upb_Encode_SkipUnknown
+            temporary_arena = Google::Protobuf::FFI.create_arena
+            mini_table_ptr = Google::Protobuf::FFI.get_mini_table(self.class.descriptor)
+            size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+            encoding = ::FFI::MemoryPointer.new(:pointer, 1)
+            encoding_status = Google::Protobuf::FFI.encode_message(@msg, mini_table_ptr, encoding_options, temporary_arena, encoding.to_ptr, size_ptr)
+            if encoding_status != :Ok or encoding.null?
+              raise ParseError.new "Error calculating hash"
+            end
+            encoding.read(:pointer).read_string(size_ptr.read(:size_t)).hash
+          end
+
+          def to_h
+            to_h_internal @msg, self.class.descriptor
+          end
+
+          ##
+          # call-seq:
+          #     Message.inspect => string
+          #
+          # Returns a human-readable string representing this message. It will be
+          # formatted as "<MessageType: field1: value1, field2: value2, ...>". Each
+          # field's value is represented according to its own #inspect method.
+          def inspect
+            self.class.inspect_internal @msg
+          end
+
+          def to_s
+            self.inspect
+          end
+
+          ##
+          # call-seq:
+          #     Message.[](index) => value
+          # Accesses a field's value by field name. The provided field name
+          # should be a string.
+          def [](name)
+            raise TypeError.new "Expected String for name but got #{name.class}" unless name.is_a? String
+            index_internal name
+          end
+
+          ##
+          # call-seq:
+          #     Message.[]=(index, value)
+          # Sets a field's value by field name. The provided field name should
+          # be a string.
+          # @param name [String] Name of the field to be set
+          # @param value [Object] Value to set the field to
+          def []=(name, value)
+            raise TypeError.new "Expected String for name but got #{name.class}" unless name.is_a? String
+            index_assign_internal(value, name: name)
+          end
+
+          ##
+          # call-seq:
+          #    MessageClass.decode(data, options) => message
+          #
+          # Decodes the given data (as a string containing bytes in protocol buffers wire
+          # format) under the interpretation given by this message class's definition
+          # and returns a message object with the corresponding field values.
+          # @param data [String] Binary string in Protobuf wire format to decode
+          # @param options [Hash] options for the decoder
+          # @option options [Integer] :recursion_limit Set to maximum decoding depth for message (default is 64)
+          def self.decode(data, options = {})
+            raise ArgumentError.new "Expected hash arguments." unless options.is_a? Hash
+            raise ArgumentError.new "Expected string for binary protobuf data." unless data.is_a? String
+            decoding_options = 0
+            depth = options[:recursion_limit]
+
+            if depth.is_a? Numeric
+              decoding_options |= Google::Protobuf::FFI.decode_max_depth(depth.to_i)
+            end
+
+            message = new
+            mini_table_ptr = Google::Protobuf::FFI.get_mini_table(message.class.descriptor)
+            status = Google::Protobuf::FFI.decode_message(
+              data,
+              data.bytesize,
+              message.instance_variable_get(:@msg),
+              mini_table_ptr,
+              Google::Protobuf::FFI.get_extension_registry(message.class.descriptor.send(:pool).descriptor_pool),
+              decoding_options,
+              message.instance_variable_get(:@arena)
+            )
+            raise ParseError.new "Error occurred during parsing" unless status == :Ok
+            message
+          end
+
+          ##
+          # call-seq:
+          #    MessageClass.encode(msg, options) => bytes
+          #
+          # Encodes the given message object to its serialized form in protocol buffers
+          # wire format.
+          # @param options [Hash] options for the encoder
+          # @option options [Integer] :recursion_limit Set to maximum encoding depth for message (default is 64)
+          def self.encode(message, options = {})
+            raise ArgumentError.new "Message of wrong type." unless message.is_a? self
+            raise ArgumentError.new "Expected hash arguments." unless options.is_a? Hash
+
+            encoding_options = 0
+            depth = options[:recursion_limit]
+
+            if depth.is_a? Numeric
+              encoding_options |= Google::Protobuf::FFI.decode_max_depth(depth.to_i)
+            end
+
+            encode_internal(message.instance_variable_get(:@msg), encoding_options) do |encoding, size, _|
+              if encoding.nil? or encoding.null?
+                raise RuntimeError.new "Exceeded maximum depth (possibly cycle)"
+              else
+                encoding.read_string_length(size).force_encoding("ASCII-8BIT").freeze
+              end
+            end
+          end
+
+          ##
+          # all-seq:
+          #    MessageClass.decode_json(data, options = {}) => message
+          #
+          # Decodes the given data (as a string containing bytes in protocol buffers wire
+          # format) under the interpretation given by this message class's definition
+          # and returns a message object with the corresponding field values.
+          #
+          # @param options [Hash] options for the decoder
+          # @option options [Boolean] :ignore_unknown_fields Set true to ignore unknown fields (default is to raise an error)
+          # @return [Message]
+          def self.decode_json(data, options = {})
+            decoding_options = 0
+            unless options.is_a? Hash
+              if options.respond_to? :to_h
+                options = options.to_h
+              else
+                #TODO can this error message be improve to include what was received?
+                raise ArgumentError.new "Expected hash arguments"
+              end
+            end
+            raise ArgumentError.new "Expected string for JSON data." unless data.is_a? String
+            raise RuntimeError.new "Cannot parse a wrapper directly" if descriptor.send(:wrapper?)
+
+            if options[:ignore_unknown_fields]
+              decoding_options |= Google::Protobuf::FFI::Upb_JsonDecode_IgnoreUnknown
+            end
+
+            message = new
+            pool_def = message.class.descriptor.instance_variable_get(:@descriptor_pool).descriptor_pool
+            status = Google::Protobuf::FFI::Status.new
+            result = Google::Protobuf::FFI.json_decode_message_detecting_nonconformance(data, data.bytesize, message.instance_variable_get(:@msg), message.class.descriptor, pool_def, decoding_options, message.instance_variable_get(:@arena), status)
+            case result
+            when Google::Protobuf::FFI::Upb_JsonDecodeResult_Error
+              raise ParseError.new "Error occurred during parsing: #{Google::Protobuf::FFI.error_message(status)}"
+            end
+            message
+          end
+
+          def self.encode_json(message, options = {})
+            encoding_options = 0
+            unless options.is_a? Hash
+              if options.respond_to? :to_h
+                options = options.to_h
+              else
+                #TODO can this error message be improve to include what was received?
+                raise ArgumentError.new "Expected hash arguments"
+              end
+            end
+
+            if options[:preserve_proto_fieldnames]
+              encoding_options |= Google::Protobuf::FFI::Upb_JsonEncode_UseProtoNames
+            end
+            if options[:emit_defaults]
+              encoding_options |= Google::Protobuf::FFI::Upb_JsonEncode_EmitDefaults
+            end
+            if options[:format_enums_as_integers]
+              encoding_options |= Google::Protobuf::FFI::Upb_JsonEncode_FormatEnumsAsIntegers
+            end
+
+            buffer_size = 1024
+            buffer = ::FFI::MemoryPointer.new(:char, buffer_size)
+            status = Google::Protobuf::FFI::Status.new
+            msg = message.instance_variable_get(:@msg)
+            pool_def = message.class.descriptor.instance_variable_get(:@descriptor_pool).descriptor_pool
+            size = Google::Protobuf::FFI::json_encode_message(msg, message.class.descriptor, pool_def, encoding_options, buffer, buffer_size, status)
+            unless status[:ok]
+              raise ParseError.new "Error occurred during encoding: #{Google::Protobuf::FFI.error_message(status)}"
+            end
+
+            if size >= buffer_size
+              buffer_size = size + 1
+              buffer = ::FFI::MemoryPointer.new(:char, buffer_size)
+              status.clear
+              size = Google::Protobuf::FFI::json_encode_message(msg, message.class.descriptor, pool_def, encoding_options, buffer, buffer_size, status)
+              unless status[:ok]
+                raise ParseError.new "Error occurred during encoding: #{Google::Protobuf::FFI.error_message(status)}"
+              end
+              if size >= buffer_size
+                raise ParseError.new "Inconsistent JSON encoding sizes - was #{buffer_size - 1}, now #{size}"
+              end
+            end
+
+            buffer.read_string_length(size).force_encoding("UTF-8").freeze
+          end
+
+          private
+          # Implementation details below are subject to breaking changes without
+          # warning and are intended for use only within the gem.
+
+          include Google::Protobuf::Internal::Convert
+
+          ##
+          # Checks ObjectCache for a sentinel empty frozen Map of the key and
+          # value types matching the field descriptor's MessageDef and returns
+          # the cache entry. If an entry is not found, one is created and added
+          # to the cache keyed by the MessageDef pointer first.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def empty_frozen_map(field_descriptor)
+            sub_message_def = Google::Protobuf::FFI.get_subtype_as_message field_descriptor
+            frozen_map = OBJECT_CACHE.get sub_message_def
+            if frozen_map.nil?
+              frozen_map = Google::Protobuf::Map.send(:construct_for_field, field_descriptor)
+              OBJECT_CACHE.try_add(sub_message_def, frozen_map.freeze)
+            end
+            raise "Empty Frozen Map is not frozen" unless frozen_map.frozen?
+            frozen_map
+          end
+
+          ##
+          # Returns a frozen Map instance for the given field. If the message
+          # already has a value for that field, it is used. If not, a sentinel
+          # (per FieldDescriptor) empty frozen Map is returned instead.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def frozen_map_from_field_descriptor(field_descriptor)
+            message_value = Google::Protobuf::FFI.get_message_value @msg, field_descriptor
+            return empty_frozen_map field_descriptor if message_value[:map_val].null?
+            get_map_field(message_value[:map_val], field_descriptor).freeze
+          end
+
+          ##
+          # Returns a Map instance for the given field. If the message is frozen
+          # the return value is also frozen. If not, a mutable instance is
+          # returned instead.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def map_from_field_descriptor(field_descriptor)
+            return frozen_map_from_field_descriptor field_descriptor if frozen?
+            mutable_message_value = Google::Protobuf::FFI.get_mutable_message @msg, field_descriptor, @arena
+            get_map_field(mutable_message_value[:map], field_descriptor)
+          end
+
+          ##
+          # Checks ObjectCache for a sentinel empty frozen RepeatedField of the
+          # value type matching the field descriptor's MessageDef and returns
+          # the cache entry. If an entry is not found, one is created and added
+          # to the cache keyed by the MessageDef pointer first.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def empty_frozen_repeated_field(field_descriptor)
+            sub_message_def = Google::Protobuf::FFI.get_subtype_as_message field_descriptor
+            frozen_repeated_field = OBJECT_CACHE.get sub_message_def
+            if frozen_repeated_field.nil?
+              frozen_repeated_field = Google::Protobuf::RepeatedField.send(:construct_for_field, field_descriptor)
+              OBJECT_CACHE.try_add(sub_message_def, frozen_repeated_field.freeze)
+            end
+            raise "Empty frozen RepeatedField is not frozen" unless frozen_repeated_field.frozen?
+            frozen_repeated_field
+          end
+
+          ##
+          # Returns a frozen RepeatedField instance for the given field. If the
+          # message already has a value for that field, it is used. If not, a
+          # sentinel (per FieldDescriptor) empty frozen RepeatedField is
+          # returned instead.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def frozen_repeated_field_from_field_descriptor(field_descriptor)
+            message_value = Google::Protobuf::FFI.get_message_value @msg, field_descriptor
+            return empty_frozen_repeated_field field_descriptor if message_value[:array_val].null?
+            get_repeated_field(message_value[:array_val], field_descriptor).freeze
+          end
+
+          ##
+          # Returns a RepeatedField instance for the given field. If the message
+          # is frozen the return value is also frozen. If not, a mutable
+          # instance is returned instead.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def repeated_field_from_field_descriptor(field_descriptor)
+            return frozen_repeated_field_from_field_descriptor field_descriptor if frozen?
+            mutable_message_value = Google::Protobuf::FFI.get_mutable_message @msg, field_descriptor, @arena
+            get_repeated_field(mutable_message_value[:array], field_descriptor)
+          end
+
+          ##
+          # Returns a Message instance for the given field. If the message
+          # is frozen nil is always returned. Otherwise, a mutable instance is
+          # returned instead.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def message_from_field_descriptor(field_descriptor)
+            return nil if frozen?
+            return nil unless Google::Protobuf::FFI.get_message_has @msg, field_descriptor
+            mutable_message = Google::Protobuf::FFI.get_mutable_message @msg, field_descriptor, @arena
+            sub_message = mutable_message[:msg]
+            sub_message_def = Google::Protobuf::FFI.get_subtype_as_message field_descriptor
+            Descriptor.send(:get_message, sub_message, sub_message_def, @arena)
+          end
+
+          ##
+          # Returns a scalar value for the given field. If the message
+          # is frozen the return value is also frozen.
+          # @param field_descriptor [FieldDescriptor] Field to retrieve.
+          def scalar_from_field_descriptor(field_descriptor)
+            c_type = field_descriptor.send(:c_type)
+            message_value = Google::Protobuf::FFI.get_message_value @msg, field_descriptor
+            msg_or_enum_def = c_type == :enum ? Google::Protobuf::FFI.get_subtype_as_enum(field_descriptor) : nil
+            return_value = convert_upb_to_ruby message_value, c_type, msg_or_enum_def
+            frozen? ? return_value.freeze : return_value
+          end
+
+          ##
+          # Dynamically define accessors methods for every field of @descriptor.
+          # Methods with names that conflict with existing methods are skipped.
+          def self.setup_accessors!
+            @descriptor.each do |field_descriptor|
+              field_name = field_descriptor.name
+              unless instance_methods(true).include?(field_name.to_sym)
+                # Dispatching to either index_internal or get_field is logically
+                # correct, but slightly slower due to having to perform extra
+                # lookups on each invocation rather than doing it once here.
+                if field_descriptor.map?
+                  define_method(field_name) do
+                    map_from_field_descriptor field_descriptor
+                  end
+                elsif field_descriptor.repeated?
+                  define_method(field_name) do
+                    repeated_field_from_field_descriptor field_descriptor
+                  end
+                elsif field_descriptor.sub_message?
+                  define_method(field_name) do
+                    message_from_field_descriptor field_descriptor
+                  end
+                else
+                  define_method(field_name) do
+                    scalar_from_field_descriptor field_descriptor
+                  end
+                end
+                define_method("#{field_name}=") do |value|
+                  index_assign_internal(value, field_descriptor: field_descriptor)
+                end
+                define_method("clear_#{field_name}") do
+                  clear_internal(field_descriptor)
+                end
+                if field_descriptor.type == :enum
+                  if field_descriptor.repeated?
+                    define_method("#{field_name}_const") do
+                      return_value = []
+                      repeated_field_from_field_descriptor(field_descriptor).send(:each_msg_val) do |msg_val|
+                        return_value << msg_val[:int32_val]
+                      end
+                      return_value
+                    end
+                  else
+                    define_method("#{field_name}_const") do
+                      message_value = Google::Protobuf::FFI.get_message_value @msg, field_descriptor
+                      message_value[:int32_val]
+                    end
+                  end
+                end
+                if !field_descriptor.repeated? and field_descriptor.wrapper?
+                  define_method("#{field_name}_as_value") do
+                    get_field(field_descriptor, unwrap: true)
+                  end
+                  define_method("#{field_name}_as_value=") do |value|
+                    if value.nil?
+                      clear_internal(field_descriptor)
+                    else
+                      index_assign_internal(value, field_descriptor: field_descriptor, wrap: true)
+                    end
+                  end
+                end
+                if field_descriptor.has_presence?
+                  define_method("has_#{field_name}?") do
+                    Google::Protobuf::FFI.get_message_has(@msg, field_descriptor)
+                  end
+                end
+              end
+            end
+          end
+
+          ##
+          # Dynamically define accessors methods for every OneOf field of
+          # @descriptor.
+          def self.setup_oneof_accessors!
+            @oneof_field_names = []
+            @descriptor.each_oneof do |oneof_descriptor|
+              self.add_oneof_accessors_for! oneof_descriptor
+            end
+          end
+
+          ##
+          # Dynamically define accessors methods for the given OneOf field.
+          # Methods with names that conflict with existing methods are skipped.
+          # @param oneof_descriptor [OneofDescriptor] Field to create accessors
+          # for.
+          def self.add_oneof_accessors_for!(oneof_descriptor)
+            field_name = oneof_descriptor.name.to_sym
+            @oneof_field_names << field_name
+            unless instance_methods(true).include?(field_name)
+              define_method(field_name) do
+                field_descriptor = Google::Protobuf::FFI.get_message_which_oneof(@msg, oneof_descriptor)
+                if field_descriptor.nil?
+                  return
+                else
+                  return field_descriptor.name.to_sym
+                end
+              end
+              define_method("clear_#{field_name}") do
+                field_descriptor = Google::Protobuf::FFI.get_message_which_oneof(@msg, oneof_descriptor)
+                unless field_descriptor.nil?
+                  clear_internal(field_descriptor)
+                end
+              end
+              define_method("has_#{field_name}?") do
+                !Google::Protobuf::FFI.get_message_which_oneof(@msg, oneof_descriptor).nil?
+              end
+            end
+          end
+
+          setup_accessors!
+          setup_oneof_accessors!
+
+          def self.private_constructor(arena, msg: nil, initial_value: nil)
+            instance = allocate
+            instance.send(:initialize, initial_value, arena, msg)
+            instance
+          end
+
+          def self.inspect_field(field_descriptor, c_type, message_value)
+            if field_descriptor.sub_message?
+              sub_msg_descriptor = Google::Protobuf::FFI.get_subtype_as_message(field_descriptor)
+              sub_msg_descriptor.msgclass.send(:inspect_internal, message_value[:msg_val])
+            else
+              convert_upb_to_ruby(message_value, c_type, field_descriptor.subtype).inspect
+            end
+          end
+
+          # @param msg [::FFI::Pointer] Pointer to the Message
+          def self.inspect_internal(msg)
+            field_output = []
+            descriptor.each do |field_descriptor|
+              next if field_descriptor.has_presence? && !Google::Protobuf::FFI.get_message_has(msg, field_descriptor)
+              if field_descriptor.map?
+                # TODO Adapted - from map#each_msg_val and map#inspect- can this be refactored to reduce echo without introducing a arena allocation?
+                message_descriptor = field_descriptor.subtype
+                key_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 1)
+                key_field_type = Google::Protobuf::FFI.get_type(key_field_def)
+
+                value_field_def = Google::Protobuf::FFI.get_field_by_number(message_descriptor, 2)
+                value_field_type = Google::Protobuf::FFI.get_type(value_field_def)
+
+                message_value = Google::Protobuf::FFI.get_message_value(msg, field_descriptor)
+                iter = ::FFI::MemoryPointer.new(:size_t, 1)
+                iter.write(:size_t, Google::Protobuf::FFI::Upb_Map_Begin)
+                key_value_pairs = []
+                while Google::Protobuf::FFI.map_next(message_value[:map_val], iter) do
+                  iter_size_t = iter.read(:size_t)
+                  key_message_value = Google::Protobuf::FFI.map_key(message_value[:map_val], iter_size_t)
+                  value_message_value = Google::Protobuf::FFI.map_value(message_value[:map_val], iter_size_t)
+                  key_string = convert_upb_to_ruby(key_message_value, key_field_type).inspect
+                  value_string = inspect_field(value_field_def, value_field_type, value_message_value)
+                  key_value_pairs << "#{key_string}=>#{value_string}"
+                end
+                field_output << "#{field_descriptor.name}: {#{key_value_pairs.join(", ")}}"
+              elsif field_descriptor.repeated?
+                # TODO Adapted - from repeated_field#each - can this be refactored to reduce echo?
+                repeated_field_output = []
+                message_value = Google::Protobuf::FFI.get_message_value(msg, field_descriptor)
+                array = message_value[:array_val]
+                n = array.null? ? 0 : Google::Protobuf::FFI.array_size(array)
+                0.upto(n - 1) do |i|
+                  element = Google::Protobuf::FFI.get_msgval_at(array, i)
+                  repeated_field_output << inspect_field(field_descriptor, field_descriptor.send(:c_type), element)
+                end
+                field_output << "#{field_descriptor.name}: [#{repeated_field_output.join(", ")}]"
+              else
+                message_value = Google::Protobuf::FFI.get_message_value msg, field_descriptor
+                rendered_value = inspect_field(field_descriptor, field_descriptor.send(:c_type), message_value)
+                field_output << "#{field_descriptor.name}: #{rendered_value}"
+              end
+            end
+            "<#{name}: #{field_output.join(', ')}>"
+          end
+
+          def self.deep_copy(msg, arena = nil)
+            arena ||= Google::Protobuf::FFI.create_arena
+            encode_internal(msg) do |encoding, size, mini_table_ptr|
+              message = private_constructor(arena)
+              if encoding.nil? or encoding.null? or Google::Protobuf::FFI.decode_message(encoding, size, message.instance_variable_get(:@msg), mini_table_ptr, nil, 0, arena) != :Ok
+                raise ParseError.new "Error occurred copying proto"
+              end
+              message
+            end
+          end
+
+          def self.encode_internal(msg, encoding_options = 0)
+            temporary_arena = Google::Protobuf::FFI.create_arena
+
+            mini_table_ptr = Google::Protobuf::FFI.get_mini_table(descriptor)
+            size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+            pointer_ptr = ::FFI::MemoryPointer.new(:pointer, 1)
+            encoding_status = Google::Protobuf::FFI.encode_message(msg, mini_table_ptr, encoding_options, temporary_arena, pointer_ptr.to_ptr, size_ptr)
+            raise "Encoding failed due to #{encoding_status}" unless encoding_status == :Ok
+            yield pointer_ptr.read(:pointer), size_ptr.read(:size_t), mini_table_ptr
+          end
+
+          def method_missing_internal(method_name, *args, mode: nil)
+            raise ArgumentError.new "method_missing_internal called with invalid mode #{mode.inspect}" unless [:respond_to_missing?, :method_missing].include? mode
+
+            #TODO not being allowed is not the same thing as not responding, but this is needed to pass tests
+            if method_name.to_s.end_with? '='
+              if self.class.send(:oneof_field_names).include? method_name.to_s[0..-2].to_sym
+                return false if mode == :respond_to_missing?
+                raise RuntimeError.new "Oneof accessors are read-only."
+              end
+            end
+
+            original_method_missing(method_name, *args) if mode == :method_missing
+          end
+
+          def clear_internal(field_def)
+            raise FrozenError.new "can't modify frozen #{self.class}" if frozen?
+            Google::Protobuf::FFI.clear_message_field(@msg, field_def)
+          end
+
+          # Accessor for field by name. Does not delegate to methods setup by
+          # self.setup_accessors! in order to avoid conflicts with bad field
+          # names e.g. `dup` or `class` which are perfectly valid for proto
+          # fields.
+          def index_internal(name)
+            field_descriptor = self.class.descriptor.lookup(name)
+            get_field field_descriptor unless field_descriptor.nil?
+          end
+
+          #TODO - well known types keeps us on our toes by overloading methods.
+          # How much of the public API needs to be defended?
+          def index_assign_internal(value, name: nil, field_descriptor: nil, wrap: false)
+            raise FrozenError.new "can't modify frozen #{self.class}" if frozen?
+            if field_descriptor.nil?
+              field_descriptor = self.class.descriptor.lookup(name)
+              if field_descriptor.nil?
+                raise ArgumentError.new "Unknown field: #{name}"
+              end
+            end
+            unless field_descriptor.send :set_value_on_message, value, @msg, @arena, wrap: wrap
+              raise RuntimeError.new "allocation failed"
+            end
+          end
+
+          ##
+          # @param initial_value [Object] initial value of this Message
+          # @param arena [Arena] Optional; Arena where this message will be allocated
+          # @param msg [::FFI::Pointer] Optional; Message to initialize; creates
+          #   one if omitted or nil.
+          def initialize(initial_value = nil, arena = nil, msg = nil)
+            @arena = arena || Google::Protobuf::FFI.create_arena
+            @msg = msg || Google::Protobuf::FFI.new_message_from_def(Google::Protobuf::FFI.get_mini_table(self.class.descriptor), @arena)
+
+            unless initial_value.nil?
+              raise ArgumentError.new "Expected hash arguments or message, not #{initial_value.class}" unless initial_value.respond_to? :each
+
+              field_def_ptr = ::FFI::MemoryPointer.new :pointer
+              oneof_def_ptr = ::FFI::MemoryPointer.new :pointer
+
+              initial_value.each do |key, value|
+                raise ArgumentError.new "Expected string or symbols as hash keys when initializing proto from hash." unless [String, Symbol].include? key.class
+
+                unless Google::Protobuf::FFI.find_msg_def_by_name self.class.descriptor, key.to_s, key.to_s.bytesize, field_def_ptr, oneof_def_ptr
+                  raise ArgumentError.new "Unknown field name '#{key}' in initialization map entry."
+                end
+                raise NotImplementedError.new "Haven't added oneofsupport yet" unless oneof_def_ptr.get_pointer(0).null?
+                raise NotImplementedError.new "Expected a field def" if field_def_ptr.get_pointer(0).null?
+
+                field_descriptor = FieldDescriptor.from_native field_def_ptr.get_pointer(0)
+
+                next if value.nil?
+                if field_descriptor.map?
+                  index_assign_internal(Google::Protobuf::Map.send(:construct_for_field, field_descriptor, arena: @arena, value: value), name: key.to_s)
+                elsif field_descriptor.repeated?
+                  index_assign_internal(RepeatedField.send(:construct_for_field, field_descriptor, arena: @arena, values: value), name: key.to_s)
+                else
+                  index_assign_internal(value, name: key.to_s)
+                end
+              end
+            end
+
+            # Should always be the last expression of the initializer to avoid
+            # leaking references to this object before construction is complete.
+            Google::Protobuf::OBJECT_CACHE.try_add @msg.address, self
+          end
+
+          ##
+          # Gets a field of this message identified by FieldDescriptor.
+          #
+          # @param field [FieldDescriptor] Field to retrieve.
+          # @param unwrap [Boolean](false) If true, unwraps wrappers.
+          def get_field(field, unwrap: false)
+            if field.map?
+              map_from_field_descriptor field
+            elsif field.repeated?
+              repeated_field_from_field_descriptor field
+            elsif field.sub_message?
+              return nil unless Google::Protobuf::FFI.get_message_has @msg, field
+              if unwrap
+                if field.has?(self)
+                  sub_message_def = Google::Protobuf::FFI.get_subtype_as_message field
+                  wrapper_message_value = Google::Protobuf::FFI.get_message_value @msg, field
+                  fields = Google::Protobuf::FFI.field_count(sub_message_def)
+                  raise "Sub message has #{fields} fields! Expected exactly 1." unless fields == 1
+                  value_field_def = Google::Protobuf::FFI.get_field_by_number sub_message_def, 1
+                  message_value = Google::Protobuf::FFI.get_message_value wrapper_message_value[:msg_val], value_field_def
+                  convert_upb_to_ruby message_value, Google::Protobuf::FFI.get_c_type(value_field_def)
+                else
+                  nil
+                end
+              else
+                message_from_field_descriptor field
+              end
+            else
+              scalar_from_field_descriptor field
+            end
+          end
+
+          ##
+          # Gets a RepeatedField from the ObjectCache or creates a new one.
+          # @param array [::FFI::Pointer] Pointer to the upb_Array
+          # @param field [Google::Protobuf::FieldDescriptor] Type of the repeated field
+          def get_repeated_field(array, field)
+            return nil if array.nil? or array.null?
+            repeated_field = OBJECT_CACHE.get(array.address)
+            if repeated_field.nil?
+              repeated_field = RepeatedField.send(:construct_for_field, field, arena: @arena, array: array)
+              repeated_field.freeze if frozen?
+            end
+            repeated_field
+          end
+
+          ##
+          # Gets a Map from the ObjectCache or creates a new one.
+          # @param map [::FFI::Pointer] Pointer to the upb_Map
+          # @param field [Google::Protobuf::FieldDescriptor] Type of the map field
+          def get_map_field(map, field)
+            return nil if map.nil? or map.null?
+            map_field = OBJECT_CACHE.get(map.address)
+            if map_field.nil?
+              map_field = Google::Protobuf::Map.send(:construct_for_field, field, arena: @arena, map: map)
+              map_field.freeze if frozen?
+            end
+            map_field
+          end
+        end
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/method_descriptor.rb

@@ -0,0 +1,124 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2024 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class MethodDescriptor
+      attr :method_def, :descriptor_pool
+
+      include Google::Protobuf::Internal::Convert
+
+      # FFI Interface methods and setup
+      extend ::FFI::DataConverter
+      native_type ::FFI::Type::POINTER
+
+      class << self
+        prepend Google::Protobuf::Internal::TypeSafety
+        include Google::Protobuf::Internal::PointerHelper
+
+        # @param value [MethodDescriptor] MethodDescriptor to convert to an FFI native type
+        # @param _ [Object] Unused
+        def to_native(value, _)
+          method_def_ptr = value.nil? ? nil : value.instance_variable_get(:@method_def)
+          return ::FFI::Pointer::NULL if method_def_ptr.nil?
+          raise "Underlying method_def was null!" if method_def_ptr.null?
+          method_def_ptr
+        end
+
+        ##
+        # @param service_def [::FFI::Pointer] MethodDef pointer to be wrapped
+        # @param _ [Object] Unused
+        def from_native(method_def, _ = nil)
+          return nil if method_def.nil? or method_def.null?
+          service_def = Google::Protobuf::FFI.raw_service_def_by_raw_method_def(method_def)
+          file_def = Google::Protobuf::FFI.file_def_by_raw_service_def(service_def)
+          descriptor_from_file_def(file_def, method_def)
+        end
+      end
+
+      def self.new(*arguments, &block)
+        raise "Descriptor objects may not be created from Ruby."
+      end
+
+      def to_s
+        inspect
+      end
+
+      def inspect
+        "#{self.class.name}: #{name}"
+      end
+
+      def name
+        @name ||= Google::Protobuf::FFI.get_method_name(self)
+      end
+
+      def options
+        @options ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.method_options(self, size_ptr, temporary_arena)
+          Google::Protobuf::MethodOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze).freeze
+        end
+      end
+
+      def input_type
+        @input_type ||= Google::Protobuf::FFI.method_input_type(self)
+      end
+
+      def output_type
+        @output_type ||= Google::Protobuf::FFI.method_output_type(self)
+      end
+
+      def client_streaming
+        @client_streaming ||= Google::Protobuf::FFI.method_client_streaming(self)
+      end
+
+      def server_streaming
+        @server_streaming ||= Google::Protobuf::FFI.method_server_streaming(self)
+      end
+
+      def to_proto
+        @to_proto ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.method_to_proto(self, size_ptr, temporary_arena)
+          Google::Protobuf::MethodDescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+        end
+      end
+
+      private
+
+      def initialize(method_def, descriptor_pool)
+        @method_def = method_def
+        @descriptor_pool = descriptor_pool
+      end
+
+      def self.private_constructor(method_def, descriptor_pool)
+        instance = allocate
+        instance.send(:initialize, method_def, descriptor_pool)
+        instance
+      end
+
+      def c_type
+        @c_type ||= Google::Protobuf::FFI.get_c_type(self)
+      end
+    end
+
+    class FFI
+      # MethodDef
+      attach_function :raw_service_def_by_raw_method_def, :upb_MethodDef_Service,                 [:pointer], :pointer
+      attach_function :get_method_name,                   :upb_MethodDef_Name,                    [MethodDescriptor], :string
+      attach_function :method_options,                    :MethodDescriptor_serialized_options,   [MethodDescriptor, :pointer, Internal::Arena], :pointer
+      attach_function :method_input_type,                 :upb_MethodDef_InputType,               [MethodDescriptor], Descriptor
+      attach_function :method_output_type,                :upb_MethodDef_OutputType,              [MethodDescriptor], Descriptor
+      attach_function :method_client_streaming,           :upb_MethodDef_ClientStreaming,         [MethodDescriptor], :bool
+      attach_function :method_server_streaming,           :upb_MethodDef_ServerStreaming,         [MethodDescriptor], :bool
+      attach_function :method_to_proto,                   :MethodDescriptor_serialized_to_proto,  [MethodDescriptor, :pointer, Internal::Arena], :pointer
+    end
+  end
+end
+

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/object_cache.rb

@@ -0,0 +1,30 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    private
+
+    SIZEOF_LONG = ::FFI::MemoryPointer.new(:long).size
+    SIZEOF_VALUE = ::FFI::Pointer::SIZE
+
+    def self.interpreter_supports_non_finalized_keys_in_weak_map?
+      ! defined? JRUBY_VERSION
+    end
+
+    def self.cache_implementation
+      if interpreter_supports_non_finalized_keys_in_weak_map? and SIZEOF_LONG >= SIZEOF_VALUE
+        Google::Protobuf::Internal::ObjectCache
+      else
+        Google::Protobuf::Internal::LegacyObjectCache
+      end
+    end
+
+    public
+    OBJECT_CACHE = cache_implementation.new
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/oneof_descriptor.rb

@@ -0,0 +1,107 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2022 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class OneofDescriptor
+      attr :descriptor_pool, :oneof_def
+      include Enumerable
+
+      # FFI Interface methods and setup
+      extend ::FFI::DataConverter
+      native_type ::FFI::Type::POINTER
+
+      class << self
+        prepend Google::Protobuf::Internal::TypeSafety
+        include Google::Protobuf::Internal::PointerHelper
+
+        # @param value [OneofDescriptor] FieldDescriptor to convert to an FFI native type
+        # @param _ [Object] Unused
+        def to_native(value, _ = nil)
+          value.instance_variable_get(:@oneof_def) || ::FFI::Pointer::NULL
+        end
+
+        ##
+        # @param oneof_def [::FFI::Pointer] OneofDef pointer to be wrapped
+        # @param _ [Object] Unused
+        def from_native(oneof_def, _ = nil)
+          return nil if oneof_def.nil? or oneof_def.null?
+          message_descriptor = Google::Protobuf::FFI.get_oneof_containing_type oneof_def
+          raise RuntimeError.new "Message Descriptor is nil" if message_descriptor.nil?
+          file_def = Google::Protobuf::FFI.get_message_file_def message_descriptor.to_native
+          descriptor_from_file_def(file_def, oneof_def)
+        end
+      end
+
+      def self.new(*arguments, &block)
+        raise "OneofDescriptor objects may not be created from Ruby."
+      end
+
+      def name
+        Google::Protobuf::FFI.get_oneof_name(self)
+      end
+
+      def each &block
+        n = Google::Protobuf::FFI.get_oneof_field_count(self)
+        0.upto(n-1) do |i|
+          yield(Google::Protobuf::FFI.get_oneof_field_by_index(self, i))
+        end
+        nil
+      end
+
+      def options
+        @options ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.oneof_options(self, size_ptr, temporary_arena)
+          opts = Google::Protobuf::OneofOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+          opts.clear_features()
+          opts.freeze
+       end
+      end
+
+      def to_proto
+        @to_proto ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.oneof_to_proto(self, size_ptr, temporary_arena)
+          Google::Protobuf::OneofDescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+        end
+      end
+
+      private
+
+      def initialize(oneof_def, descriptor_pool)
+        @descriptor_pool = descriptor_pool
+        @oneof_def = oneof_def
+      end
+
+      def self.private_constructor(oneof_def, descriptor_pool)
+        instance = allocate
+        instance.send(:initialize, oneof_def, descriptor_pool)
+        instance
+      end
+    end
+
+    class FFI
+      # MessageDef
+      attach_function :get_oneof_by_name,        :upb_MessageDef_FindOneofByNameWithSize, [Descriptor, :string, :size_t], OneofDescriptor
+      attach_function :get_oneof_by_index,       :upb_MessageDef_Oneof,                   [Descriptor, :int], OneofDescriptor
+
+      # OneofDescriptor
+      attach_function :get_oneof_name,           :upb_OneofDef_Name,                      [OneofDescriptor], :string
+      attach_function :get_oneof_field_count,    :upb_OneofDef_FieldCount,                [OneofDescriptor], :int
+      attach_function :get_oneof_field_by_index, :upb_OneofDef_Field,                     [OneofDescriptor, :int], FieldDescriptor
+      attach_function :get_oneof_containing_type,:upb_OneofDef_ContainingType,            [:pointer], Descriptor
+      attach_function :oneof_options,            :OneOfDescriptor_serialized_options,     [OneofDescriptor, :pointer, Internal::Arena], :pointer
+      attach_function :oneof_to_proto,           :OneOfDescriptor_serialized_to_proto,    [OneofDescriptor, :pointer, Internal::Arena], :pointer
+
+      # FieldDescriptor
+      attach_function :real_containing_oneof,    :upb_FieldDef_RealContainingOneof,       [FieldDescriptor], OneofDescriptor
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/repeated_field.rb

@@ -0,0 +1,411 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2008 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+#
+# This class makes RepeatedField act (almost-) like a Ruby Array.
+# It has convenience methods that extend the core C or Java based
+# methods.
+#
+# This is a best-effort to mirror Array behavior.  Two comments:
+#  1) patches always welcome :)
+#  2) if performance is an issue, feel free to rewrite the method
+#     in C.  The source code has plenty of examples
+#
+# KNOWN ISSUES
+#   - #[]= doesn't allow less used approaches such as `arr[1, 2] = 'fizz'`
+#   - #concat should return the orig array
+#   - #push should accept multiple arguments and push them all at the same time
+#
+module Google
+  module Protobuf
+    class FFI
+      # Array
+      attach_function :append_array,  :upb_Array_Append,   [:Array, MessageValue.by_value, Internal::Arena], :bool
+      attach_function :get_msgval_at, :upb_Array_Get,      [:Array, :size_t], MessageValue.by_value
+      attach_function :create_array,  :upb_Array_New,      [Internal::Arena, CType], :Array
+      attach_function :array_resize,  :upb_Array_Resize,   [:Array, :size_t, Internal::Arena], :bool
+      attach_function :array_set,     :upb_Array_Set,      [:Array, :size_t, MessageValue.by_value], :void
+      attach_function :array_size,    :upb_Array_Size,     [:Array], :size_t
+      attach_function :array_freeze,  :upb_Array_Freeze,   [:Array, MiniTable.by_ref], :void
+      attach_function :array_frozen?, :upb_Array_IsFrozen, [:Array], :bool
+    end
+
+    class RepeatedField
+      include Enumerable
+
+      ##
+      # call-seq:
+      #     RepeatedField.new(type, type_class = nil, initial_values = [])
+      #
+      # Creates a new repeated field. The provided type must be a Ruby symbol, and
+      # an take on the same values as those accepted by FieldDescriptor#type=. If
+      # the type is :message or :enum, type_class must be non-nil, and must be the
+      # Ruby class or module returned by Descriptor#msgclass or
+      # EnumDescriptor#enummodule, respectively. An initial list of elements may also
+      # be provided.
+      def self.new(type, type_class = nil, initial_values = [])
+        instance = allocate
+        # TODO This argument mangling doesn't agree with the type signature in the comments
+        # but is required to make unit tests pass;
+        if type_class.is_a?(Enumerable) and initial_values.empty? and ![:enum, :message].include?(type)
+          initial_values = type_class
+          type_class = nil
+        end
+        instance.send(:initialize, type, type_class: type_class, initial_values: initial_values)
+        instance
+      end
+
+      ##
+      # call-seq:
+      #     RepeatedField.each(&block)
+      #
+      # Invokes the block once for each element of the repeated field. RepeatedField
+      # also includes Enumerable; combined with this method, the repeated field thus
+      # acts like an ordinary Ruby sequence.
+      def each &block
+        each_msg_val do |element|
+          yield(convert_upb_to_ruby(element, type, descriptor, arena))
+        end
+        self
+      end
+
+      def [](*args)
+        count = length
+        if args.size < 1
+          raise ArgumentError.new "Index or range is a required argument."
+        end
+        if args[0].is_a? Range
+          if args.size > 1
+            raise ArgumentError.new "Expected 1 when passing Range argument, but got #{args.size}"
+          end
+          range = args[0]
+          # Handle begin-less and/or endless ranges, when supported.
+          index_of_first = range.respond_to?(:begin) ? range.begin : range.last
+          index_of_first = 0 if index_of_first.nil?
+          end_of_range = range.respond_to?(:end) ? range.end : range.last
+          index_of_last = end_of_range.nil? ? -1 : end_of_range
+
+          if index_of_last < 0
+            index_of_last += count
+          end
+          unless range.exclude_end? and !end_of_range.nil?
+            index_of_last += 1
+          end
+          index_of_first += count if index_of_first < 0
+          length = index_of_last - index_of_first
+          return [] if length.zero?
+        elsif args[0].is_a? Integer
+          index_of_first = args[0]
+          index_of_first += count if index_of_first < 0
+          if args.size > 2
+            raise ArgumentError.new "Expected 1 or 2 arguments, but got #{args.size}"
+          end
+          if args.size == 1 # No length specified, return one element
+            if array.null? or index_of_first < 0 or index_of_first >= count
+              return nil
+            else
+              return convert_upb_to_ruby(Google::Protobuf::FFI.get_msgval_at(array, index_of_first), type, descriptor, arena)
+            end
+          else
+            length = [args[1],count].min
+          end
+        else
+          raise NotImplementedError
+        end
+
+        if array.null? or index_of_first < 0 or index_of_first > count
+          nil
+        else
+          if index_of_first + length > count
+            length = count - index_of_first
+          end
+          if length < 0
+            nil
+          else
+            subarray(index_of_first, length)
+          end
+        end
+      end
+      alias at []
+
+
+      def []=(index, value)
+        raise FrozenError if frozen?
+        count = length
+        index += count if index < 0
+        return nil if index < 0
+        if index >= count
+          resize(index+1)
+          empty_message_value = Google::Protobuf::FFI::MessageValue.new # Implicitly clear
+          count.upto(index-1) do |i|
+            Google::Protobuf::FFI.array_set(array, i, empty_message_value)
+          end
+        end
+        Google::Protobuf::FFI.array_set(array, index, convert_ruby_to_upb(value, arena, type, descriptor))
+        nil
+      end
+
+      def push(*elements)
+        raise FrozenError if frozen?
+        internal_push(*elements)
+      end
+
+      def <<(element)
+        raise FrozenError if frozen?
+        push element
+      end
+
+      def replace(replacements)
+        raise FrozenError if frozen?
+        clear
+        push(*replacements)
+      end
+
+      def clear
+        raise FrozenError if frozen?
+        resize 0
+        self
+      end
+
+      def length
+        array.null? ? 0 : Google::Protobuf::FFI.array_size(array)
+      end
+      alias size :length
+
+      ##
+      # Is this object frozen?
+      # Returns true if either this Ruby wrapper or the underlying
+      # representation are frozen. Freezes the wrapper if the underlying
+      # representation is already frozen but this wrapper isn't.
+      def frozen?
+        unless Google::Protobuf::FFI.array_frozen? array
+          raise RuntimeError.new "Ruby frozen RepeatedField with mutable representation" if super
+          return false
+        end
+        method(:freeze).super_method.call unless super
+        true
+      end
+
+      ##
+      # Freezes the RepeatedField object. We have to intercept this so we can
+      # freeze the underlying representation, not just the Ruby wrapper. Returns
+      # self.
+      def freeze
+        if method(:frozen?).super_method.call
+          unless Google::Protobuf::FFI.array_frozen? array
+            raise RuntimeError.new "Underlying representation of repeated field still mutable despite frozen wrapper"
+          end
+          return self
+        end
+        unless Google::Protobuf::FFI.array_frozen? array
+          mini_table = (type == :message) ? Google::Protobuf::FFI.get_mini_table(@descriptor) : nil
+          Google::Protobuf::FFI.array_freeze(array, mini_table)
+        end
+        super
+      end
+
+      def dup
+        instance = self.class.allocate
+        instance.send(:initialize, type, descriptor: descriptor, arena: arena)
+        each_msg_val do |element|
+          instance.send(:append_msg_val, element)
+        end
+        instance
+      end
+      alias clone dup
+
+      def ==(other)
+        return true if other.object_id == object_id
+        if other.is_a? RepeatedField
+          return false unless other.length == length
+          each_msg_val_with_index do |msg_val, i|
+            other_msg_val = Google::Protobuf::FFI.get_msgval_at(other.send(:array), i)
+            unless Google::Protobuf::FFI.message_value_equal(msg_val, other_msg_val, type, descriptor)
+              return false
+            end
+          end
+          return true
+        elsif other.is_a? Enumerable
+          return to_ary == other.to_a
+        end
+        false
+      end
+
+      ##
+      # call-seq:
+      #    RepeatedField.to_ary => array
+      #
+      # Used when converted implicitly into array, e.g. compared to an Array.
+      # Also called as a fallback of Object#to_a
+      def to_ary
+        return_value = []
+        each do |element|
+          return_value << element
+        end
+        return_value
+      end
+
+      def hash
+        return_value = 0
+        each_msg_val do |msg_val|
+          return_value = Google::Protobuf::FFI.message_value_hash(msg_val, type, descriptor, return_value)
+        end
+        return_value
+      end
+
+      def +(other)
+        if other.is_a? RepeatedField
+          if type != other.instance_variable_get(:@type) or descriptor != other.instance_variable_get(:@descriptor)
+            raise ArgumentError.new "Attempt to append RepeatedField with different element type."
+          end
+          fuse_arena(other.send(:arena))
+          super_set = dup
+          other.send(:each_msg_val) do |msg_val|
+            super_set.send(:append_msg_val, msg_val)
+          end
+          super_set
+        elsif other.is_a? Enumerable
+          super_set = dup
+          super_set.push(*other.to_a)
+        else
+          raise ArgumentError.new "Unknown type appending to RepeatedField"
+        end
+      end
+
+      def concat(other)
+        raise ArgumentError.new "Expected Enumerable, but got #{other.class}" unless other.is_a? Enumerable
+        push(*other.to_a)
+      end
+
+      private
+      include Google::Protobuf::Internal::Convert
+
+      attr :name, :arena, :array, :type, :descriptor
+
+      def internal_push(*elements)
+        elements.each do |element|
+          append_msg_val convert_ruby_to_upb(element, arena, type, descriptor)
+        end
+        self
+      end
+
+      def pop_one
+        raise FrozenError if frozen?
+        count = length
+        return nil if length.zero?
+        last_element = Google::Protobuf::FFI.get_msgval_at(array, count-1)
+        return_value = convert_upb_to_ruby(last_element, type, descriptor, arena)
+        resize(count-1)
+        return_value
+      end
+
+      def subarray(start, length)
+        return_result = []
+        (start..(start + length - 1)).each do |i|
+          element = Google::Protobuf::FFI.get_msgval_at(array, i)
+          return_result << convert_upb_to_ruby(element, type, descriptor, arena)
+        end
+        return_result
+      end
+
+      def each_msg_val_with_index &block
+        n = array.null? ? 0 : Google::Protobuf::FFI.array_size(array)
+        0.upto(n-1) do |i|
+          yield Google::Protobuf::FFI.get_msgval_at(array, i), i
+        end
+      end
+
+      def each_msg_val &block
+        each_msg_val_with_index do |msg_val, _|
+          yield msg_val
+        end
+      end
+
+      # @param msg_val [Google::Protobuf::FFI::MessageValue] Value to append
+      def append_msg_val(msg_val)
+        unless Google::Protobuf::FFI.append_array(array, msg_val, arena)
+          raise NoMemoryError.new "Could not allocate room for #{msg_val} in Arena"
+        end
+      end
+
+      # @param new_size [Integer] New size of the array
+      def resize(new_size)
+        unless Google::Protobuf::FFI.array_resize(array, new_size, arena)
+          raise NoMemoryError.new "Array resize to #{new_size} failed!"
+        end
+      end
+
+      def initialize(type, type_class: nil, initial_values: nil, name: nil, arena: nil, array: nil, descriptor: nil)
+        @name = name || 'RepeatedField'
+        raise ArgumentError.new "Expected argument type to be a Symbol" unless type.is_a? Symbol
+        field_number = Google::Protobuf::FFI::FieldType[type]
+        raise ArgumentError.new "Unsupported type '#{type}'" if field_number.nil?
+        if !descriptor.nil?
+          @descriptor = descriptor
+        elsif [:message, :enum].include? type
+          raise ArgumentError.new "Expected at least 2 arguments for message/enum." if type_class.nil?
+          descriptor = type_class.respond_to?(:descriptor) ? type_class.descriptor : nil
+          raise ArgumentError.new "Type class #{type_class} has no descriptor. Please pass a class or enum as returned by the DescriptorPool." if descriptor.nil?
+          @descriptor = descriptor
+        else
+          @descriptor = nil
+        end
+        @type = type
+
+        @arena = arena || Google::Protobuf::FFI.create_arena
+        @array = array || Google::Protobuf::FFI.create_array(@arena, @type)
+        unless initial_values.nil?
+          unless initial_values.is_a? Enumerable
+            raise ArgumentError.new "Expected array as initializer value for repeated field '#{name}' (given #{initial_values.class})."
+          end
+          internal_push(*initial_values)
+        end
+
+        # Should always be the last expression of the initializer to avoid
+        # leaking references to this object before construction is complete.
+        OBJECT_CACHE.try_add(@array.address, self)
+      end
+
+      ##
+      # Constructor that uses the type information from the given
+      # FieldDescriptor to configure the new RepeatedField instance.
+      # @param field [FieldDescriptor] Type information for the new RepeatedField
+      # @param arena [Arena] Owning message's arena
+      # @param values [Enumerable] Initial values
+      # @param array [::FFI::Pointer] Existing upb_Array
+      def self.construct_for_field(field, arena: nil, values: nil, array: nil)
+        instance = allocate
+        options = {initial_values: values, name: field.name, arena: arena, array: array}
+        if [:enum, :message].include? field.type
+          options[:descriptor] = field.subtype
+        end
+        instance.send(:initialize, field.type, **options)
+        instance
+      end
+
+      def fuse_arena(other_arena)
+        @arena.fuse(other_arena)
+      end
+
+      extend Google::Protobuf::Internal::Convert
+
+      def self.deep_copy(repeated_field)
+        instance = allocate
+        instance.send(:initialize, repeated_field.send(:type), descriptor: repeated_field.send(:descriptor))
+        instance.send(:resize, repeated_field.length)
+        new_array = instance.send(:array)
+        repeated_field.send(:each_msg_val_with_index) do |element, i|
+          Google::Protobuf::FFI.array_set(new_array, i, message_value_deep_copy(element, repeated_field.send(:type), repeated_field.send(:descriptor), instance.send(:arena)))
+        end
+        instance
+      end
+
+    end
+  end
+end
+
+require 'google/protobuf/repeated_field'

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/ffi/service_descriptor.rb

@@ -0,0 +1,117 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2024 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    class ServiceDescriptor
+      attr :service_def, :descriptor_pool
+      include Enumerable
+
+      include Google::Protobuf::Internal::Convert
+
+      # FFI Interface methods and setup
+      extend ::FFI::DataConverter
+      native_type ::FFI::Type::POINTER
+
+      class << self
+        prepend Google::Protobuf::Internal::TypeSafety
+        include Google::Protobuf::Internal::PointerHelper
+
+        # @param value [ServiceDescriptor] ServiceDescriptor to convert to an FFI native type
+        # @param _ [Object] Unused
+        def to_native(value, _)
+          service_def_ptr = value.nil? ? nil : value.instance_variable_get(:@service_def)
+          return ::FFI::Pointer::NULL if service_def_ptr.nil?
+          raise "Underlying service_def was null!" if service_def_ptr.null?
+          service_def_ptr
+        end
+
+        ##
+        # @param service_def [::FFI::Pointer] ServiceDef pointer to be wrapped
+        # @param _ [Object] Unused
+        def from_native(service_def, _ = nil)
+          return nil if service_def.nil? or service_def.null?
+          file_def = Google::Protobuf::FFI.file_def_by_raw_service_def(service_def)
+          descriptor_from_file_def(file_def, service_def)
+        end
+      end
+
+      def self.new(*arguments, &block)
+        raise "Descriptor objects may not be created from Ruby."
+      end
+
+      def to_s
+        inspect
+      end
+
+      def inspect
+        "#{self.class.name}: #{name}"
+      end
+
+      def name
+        @name ||= Google::Protobuf::FFI.get_service_full_name(self)
+      end
+
+      def file_descriptor
+        @descriptor_pool.send(:get_file_descriptor, Google::Protobuf::FFI.file_def_by_raw_service_def(@service_def))
+      end
+
+      def each &block
+        n = Google::Protobuf::FFI.method_count(self)
+        0.upto(n-1) do |i|
+          yield(Google::Protobuf::FFI.get_method_by_index(self, i))
+        end
+        nil
+      end
+
+      def options
+        @options ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.service_options(self, size_ptr, temporary_arena)
+          Google::Protobuf::ServiceOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze).freeze
+        end
+      end
+
+      def to_proto
+        @to_proto ||= begin
+          size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
+          temporary_arena = Google::Protobuf::FFI.create_arena
+          buffer = Google::Protobuf::FFI.service_to_proto(self, size_ptr, temporary_arena)
+          Google::Protobuf::ServiceDescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
+        end
+      end
+
+      private
+
+      def initialize(service_def, descriptor_pool)
+        @service_def = service_def
+        @descriptor_pool = descriptor_pool
+      end
+
+      def self.private_constructor(service_def, descriptor_pool)
+        instance = allocate
+        instance.send(:initialize, service_def, descriptor_pool)
+        instance
+      end
+
+      def c_type
+        @c_type ||= Google::Protobuf::FFI.get_c_type(self)
+      end
+    end
+
+    class FFI
+      # ServiceDef
+      attach_function :file_def_by_raw_service_def, :upb_ServiceDef_File,                   [:pointer], :FileDef
+      attach_function :get_service_full_name,       :upb_ServiceDef_FullName,               [ServiceDescriptor], :string
+      attach_function :method_count,                :upb_ServiceDef_MethodCount,            [ServiceDescriptor], :int
+      attach_function :get_method_by_index,         :upb_ServiceDef_Method,                 [ServiceDescriptor, :int], MethodDescriptor
+      attach_function :service_options,             :ServiceDescriptor_serialized_options,  [ServiceDescriptor, :pointer, Internal::Arena], :pointer
+      attach_function :service_to_proto,            :ServiceDescriptor_serialized_to_proto, [ServiceDescriptor, :pointer, Internal::Arena], :pointer
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/field_mask_pb.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/field_mask.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n google/protobuf/field_mask.proto\x12\x0fgoogle.protobuf\"\x1a\n\tFieldMask\x12\r\n\x05paths\x18\x01 \x03(\tB\x85\x01\n\x13\x63om.google.protobufB\x0e\x46ieldMaskProtoP\x01Z2google.golang.org/protobuf/types/known/fieldmaskpb\xf8\x01\x01\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    FieldMask = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.FieldMask").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/internal/object_cache.rb

@@ -0,0 +1,99 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2023 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    module Internal
+      # A pointer -> Ruby Object cache that keeps references to Ruby wrapper
+      # objects.  This allows us to look up any Ruby wrapper object by the address
+      # of the object it is wrapping. That way we can avoid ever creating two
+      # different wrapper objects for the same C object, which saves memory and
+      # preserves object identity.
+      #
+      # We use WeakMap for the cache. If sizeof(long) > sizeof(VALUE), we also
+      # need a secondary Hash to store WeakMap keys, because our pointer keys may
+      # need to be stored as Bignum instead of Fixnum.  Since WeakMap is weak for
+      # both keys and values, a Bignum key will cause the WeakMap entry to be
+      # collected immediately unless there is another reference to the Bignum.
+      # This happens on 64-bit Windows, on which pointers are 64 bits but longs
+      # are 32 bits. In this case, we enable the secondary Hash to hold the keys
+      # and prevent them from being collected.
+      class ObjectCache
+        def initialize
+          @map = ObjectSpace::WeakMap.new
+          @mutex = Mutex.new
+        end
+
+        def get(key)
+          @map[key]
+        end
+
+        def try_add(key, value)
+          @map[key] || @mutex.synchronize do
+            @map[key] ||= value
+          end
+        end
+      end
+
+      class LegacyObjectCache
+        def initialize
+          @secondary_map = {}
+          @map = ObjectSpace::WeakMap.new
+          @mutex = Mutex.new
+        end
+
+        def get(key)
+          value = if secondary_key = @secondary_map[key]
+            @map[secondary_key]
+          else
+            @mutex.synchronize do
+              @map[(@secondary_map[key] ||= Object.new)]
+            end
+          end
+
+          # GC if we could remove at least 2000 entries or 20% of the table size
+          # (whichever is greater).  Since the cost of the GC pass is O(N), we
+          # want to make sure that we condition this on overall table size, to
+          # avoid O(N^2) CPU costs.
+          cutoff = (@secondary_map.size * 0.2).ceil
+          cutoff = 2_000 if cutoff < 2_000
+          if (@secondary_map.size - @map.size) > cutoff
+            purge
+          end
+
+          value
+        end
+
+        def try_add(key, value)
+          if secondary_key = @secondary_map[key]
+            if old_value = @map[secondary_key]
+              return old_value
+            end
+          end
+
+          @mutex.synchronize do
+            secondary_key ||= (@secondary_map[key] ||= Object.new)
+            @map[secondary_key] ||= value
+          end
+        end
+
+        private
+
+        def purge
+          @mutex.synchronize do
+            @secondary_map.each do |key, secondary_key|
+              unless @map.key?(secondary_key)
+                @secondary_map.delete(key)
+              end
+            end
+          end
+          nil
+        end
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/json_enumvalue_options_pb.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/json_enumvalue_options.proto
+
+require 'google/protobuf'
+
+require 'google/protobuf/descriptor_pb'
+
+
+descriptor_data = "\n,google/protobuf/json_enumvalue_options.proto\x12\x0cpb.enumvalue\x1a google/protobuf/descriptor.proto\"(\n\x14JsonEnumValueOptions\x12\x0e\n\x06string\x18\x01 \x01(\tX\x01:\\\n\x04json\x12!.google.protobuf.EnumValueOptions\x18\xe6\x07 \x01(\x0b\x32\".pb.enumvalue.JsonEnumValueOptionsB\x06\xb2\x01\x03\x08\xea\x07\x42\x1a\n\x18\x63om.google.protobuf.utilb\x08\x65\x64itionsp\xe9\x07"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Pb
+  module Enumvalue
+    JsonEnumValueOptions = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("pb.enumvalue.JsonEnumValueOptions").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/json_options_pb.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/json_options.proto
+
+require 'google/protobuf'
+
+require 'google/protobuf/json_enumvalue_options_pb'
+
+
+descriptor_data = "\n\"google/protobuf/json_options.proto\x12\x02pb\x1a,google/protobuf/json_enumvalue_options.protoB\x1a\n\x18\x63om.google.protobuf.utilP\x00\x62\x08\x65\x64itionsp\xe9\x07"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Pb
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/message_exts.rb

@@ -0,0 +1,39 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2008 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+module Google
+  module Protobuf
+    module MessageExts
+
+      #this is only called in jruby; mri loades the ClassMethods differently
+      def self.included(klass)
+        klass.extend(ClassMethods)
+      end
+
+      module ClassMethods
+      end
+
+      def to_json(options = {})
+        self.class.encode_json(self, options)
+      end
+
+      def to_proto(options = {})
+        self.class.encode(self, options)
+      end
+
+      def to_hash
+        self.to_h
+      end
+
+    end
+    class AbstractMessage
+      include MessageExts
+      extend MessageExts::ClassMethods
+    end
+    private_constant :AbstractMessage
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/plugin_pb.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/compiler/plugin.proto
+
+require 'google/protobuf'
+
+require 'google/protobuf/descriptor_pb'
+
+
+descriptor_data = "\n%google/protobuf/compiler/plugin.proto\x12\x18google.protobuf.compiler\x1a google/protobuf/descriptor.proto\"F\n\x07Version\x12\r\n\x05major\x18\x01 \x01(\x05\x12\r\n\x05minor\x18\x02 \x01(\x05\x12\r\n\x05patch\x18\x03 \x01(\x05\x12\x0e\n\x06suffix\x18\x04 \x01(\t\"\x81\x02\n\x14\x43odeGeneratorRequest\x12\x18\n\x10\x66ile_to_generate\x18\x01 \x03(\t\x12\x11\n\tparameter\x18\x02 \x01(\t\x12\x38\n\nproto_file\x18\x0f \x03(\x0b\x32$.google.protobuf.FileDescriptorProto\x12\x45\n\x17source_file_descriptors\x18\x11 \x03(\x0b\x32$.google.protobuf.FileDescriptorProto\x12;\n\x10\x63ompiler_version\x18\x03 \x01(\x0b\x32!.google.protobuf.compiler.Version\"\x92\x03\n\x15\x43odeGeneratorResponse\x12\r\n\x05\x65rror\x18\x01 \x01(\t\x12\x1a\n\x12supported_features\x18\x02 \x01(\x04\x12\x17\n\x0fminimum_edition\x18\x03 \x01(\x05\x12\x17\n\x0fmaximum_edition\x18\x04 \x01(\x05\x12\x42\n\x04\x66ile\x18\x0f \x03(\x0b\x32\x34.google.protobuf.compiler.CodeGeneratorResponse.File\x1a\x7f\n\x04\x46ile\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x17\n\x0finsertion_point\x18\x02 \x01(\t\x12\x0f\n\x07\x63ontent\x18\x0f \x01(\t\x12?\n\x13generated_code_info\x18\x10 \x01(\x0b\x32\".google.protobuf.GeneratedCodeInfo\"W\n\x07\x46\x65\x61ture\x12\x10\n\x0c\x46\x45\x41TURE_NONE\x10\x00\x12\x1b\n\x17\x46\x45\x41TURE_PROTO3_OPTIONAL\x10\x01\x12\x1d\n\x19\x46\x45\x41TURE_SUPPORTS_EDITIONS\x10\x02\x42r\n\x1c\x63om.google.protobuf.compilerB\x0cPluginProtosZ)google.golang.org/protobuf/types/pluginpb\xaa\x02\x18Google.Protobuf.Compiler"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    module Compiler
+      Version = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.compiler.Version").msgclass
+      CodeGeneratorRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.compiler.CodeGeneratorRequest").msgclass
+      CodeGeneratorResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.compiler.CodeGeneratorResponse").msgclass
+      CodeGeneratorResponse::File = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.compiler.CodeGeneratorResponse.File").msgclass
+      CodeGeneratorResponse::Feature = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.compiler.CodeGeneratorResponse.Feature").enummodule
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/repeated_field.rb

@@ -0,0 +1,177 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2008 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+require 'forwardable'
+
+#
+# This class makes RepeatedField act (almost-) like a Ruby Array.
+# It has convenience methods that extend the core C or Java based
+# methods.
+#
+# This is a best-effort to mirror Array behavior.  Two comments:
+#  1) patches always welcome :)
+#  2) if performance is an issue, feel free to rewrite the method
+#     in jruby and C.  The source code has plenty of examples
+#
+# KNOWN ISSUES
+#   - #[]= doesn't allow less used approaches such as `arr[1, 2] = 'fizz'`
+#   - #concat should return the orig array
+#   - #push should accept multiple arguments and push them all at the same time
+#
+module Google
+  module Protobuf
+    class RepeatedField
+      extend Forwardable
+
+      # methods defined in C or Java:
+      #   +
+      #   [], at
+      #   []=
+      #   concat
+      #   clear
+      #   dup, clone
+      #   each
+      #   push, <<
+      #   replace
+      #   length, size
+      #   ==
+      #   to_ary, to_a
+      #   also all enumerable
+      #
+      # NOTE:  using delegators rather than method_missing to make the
+      #        relationship explicit instead of implicit
+      def_delegators :to_ary,
+        :&, :*, :-, :'<=>',
+        :assoc, :bsearch, :bsearch_index, :combination, :compact, :count,
+        :cycle, :difference, :dig, :drop, :drop_while, :eql?, :fetch, :find_index, :flatten,
+        :include?, :index, :inspect, :intersection, :join,
+        :pack, :permutation, :product, :pretty_print, :pretty_print_cycle,
+        :rassoc, :repeated_combination, :repeated_permutation, :reverse,
+        :rindex, :rotate, :sample, :shuffle, :shelljoin,
+        :to_s, :transpose, :union, :uniq, :|
+
+
+      def first(n=nil)
+        if n.nil?
+          return self[0]
+        elsif n < 0
+          raise ArgumentError, "negative array size"
+        else
+          return self[0...n]
+        end
+      end
+
+
+      def last(n=nil)
+        if n.nil?
+          return self[-1]
+        elsif n < 0
+          raise ArgumentError, "negative array size"
+        else
+          start = [self.size-n, 0].max
+          return self[start...self.size]
+        end
+      end
+
+
+      def pop(n=nil)
+        if n
+          results = []
+          n.times{ results << pop_one }
+          return results
+        else
+          return pop_one
+        end
+      end
+
+
+      def empty?
+        self.size == 0
+      end
+
+      # array aliases into enumerable
+      alias_method :slice, :[]
+      alias_method :values_at, :select
+      alias_method :map, :collect
+
+
+      class << self
+        def define_array_wrapper_method(method_name)
+          define_method(method_name) do |*args, &block|
+            arr = self.to_a
+            result = arr.send(method_name, *args)
+            self.replace(arr)
+            return result if result
+            return block ? block.call : result
+          end
+        end
+        private :define_array_wrapper_method
+
+
+        def define_array_wrapper_with_result_method(method_name)
+          define_method(method_name) do |*args, &block|
+            # result can be an Enumerator, Array, or nil
+            # Enumerator can sometimes be returned if a block is an optional argument and it is not passed in
+            # nil usually specifies that no change was made
+            result = self.to_a.send(method_name, *args, &block)
+            if result
+              new_arr = result.to_a
+              self.replace(new_arr)
+              if result.is_a?(Enumerator)
+                # generate a fresh enum; rewinding the exiting one, in Ruby 2.2, will
+                # reset the enum with the same length, but all the #next calls will
+                # return nil
+                result = new_arr.to_enum
+                # generate a wrapper enum so any changes which occur by a chained
+                # enum can be captured
+                ie = ProxyingEnumerator.new(self, result)
+                result = ie.to_enum
+              end
+            end
+            result
+          end
+        end
+        private :define_array_wrapper_with_result_method
+      end
+
+
+      %w(delete delete_at shift slice! unshift).each do |method_name|
+        define_array_wrapper_method(method_name)
+      end
+
+
+      %w(collect! compact! delete_if each_index fill flatten! insert reverse!
+        rotate! select! shuffle! sort! sort_by! uniq!).each do |method_name|
+        define_array_wrapper_with_result_method(method_name)
+      end
+      alias_method :keep_if, :select!
+      alias_method :map!, :collect!
+      alias_method :reject!, :delete_if
+
+
+      # propagates changes made by user of enumerator back to the original repeated field.
+      # This only applies in cases where the calling function which created the enumerator,
+      # such as #sort!, modifies itself rather than a new array, such as #sort
+      class ProxyingEnumerator < Struct.new(:repeated_field, :external_enumerator)
+        def each(*args, &block)
+          results = []
+          external_enumerator.each_with_index do |val, i|
+            result = yield(val)
+            results << result
+            #nil means no change occurred from yield; usually occurs when #to_a is called
+            if result
+              repeated_field[i] = result if result != val
+            end
+          end
+          results
+        end
+      end
+
+
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/source_context_pb.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/source_context.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n$google/protobuf/source_context.proto\x12\x0fgoogle.protobuf\"\"\n\rSourceContext\x12\x11\n\tfile_name\x18\x01 \x01(\tB\x8a\x01\n\x13\x63om.google.protobufB\x12SourceContextProtoP\x01Z6google.golang.org/protobuf/types/known/sourcecontextpb\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    SourceContext = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.SourceContext").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/struct_pb.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/struct.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n\x1cgoogle/protobuf/struct.proto\x12\x0fgoogle.protobuf\"\x84\x01\n\x06Struct\x12\x33\n\x06\x66ields\x18\x01 \x03(\x0b\x32#.google.protobuf.Struct.FieldsEntry\x1a\x45\n\x0b\x46ieldsEntry\x12\x0b\n\x03key\x18\x01 \x01(\t\x12%\n\x05value\x18\x02 \x01(\x0b\x32\x16.google.protobuf.Value:\x02\x38\x01\"\xea\x01\n\x05Value\x12\x30\n\nnull_value\x18\x01 \x01(\x0e\x32\x1a.google.protobuf.NullValueH\x00\x12\x16\n\x0cnumber_value\x18\x02 \x01(\x01H\x00\x12\x16\n\x0cstring_value\x18\x03 \x01(\tH\x00\x12\x14\n\nbool_value\x18\x04 \x01(\x08H\x00\x12/\n\x0cstruct_value\x18\x05 \x01(\x0b\x32\x17.google.protobuf.StructH\x00\x12\x30\n\nlist_value\x18\x06 \x01(\x0b\x32\x1a.google.protobuf.ListValueH\x00\x42\x06\n\x04kind\"3\n\tListValue\x12&\n\x06values\x18\x01 \x03(\x0b\x32\x16.google.protobuf.Value*\x1b\n\tNullValue\x12\x0e\n\nNULL_VALUE\x10\x00\x42\x7f\n\x13\x63om.google.protobufB\x0bStructProtoP\x01Z/google.golang.org/protobuf/types/known/structpb\xf8\x01\x01\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    Struct = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Struct").msgclass
+    Value = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Value").msgclass
+    ListValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.ListValue").msgclass
+    NullValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.NullValue").enummodule
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/timestamp_pb.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/timestamp.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n\x1fgoogle/protobuf/timestamp.proto\x12\x0fgoogle.protobuf\"+\n\tTimestamp\x12\x0f\n\x07seconds\x18\x01 \x01(\x03\x12\r\n\x05nanos\x18\x02 \x01(\x05\x42\x85\x01\n\x13\x63om.google.protobufB\x0eTimestampProtoP\x01Z2google.golang.org/protobuf/types/known/timestamppb\xf8\x01\x01\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    Timestamp = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Timestamp").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/type_pb.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/type.proto
+
+require 'google/protobuf'
+
+require 'google/protobuf/any_pb'
+require 'google/protobuf/source_context_pb'
+
+
+descriptor_data = "\n\x1agoogle/protobuf/type.proto\x12\x0fgoogle.protobuf\x1a\x19google/protobuf/any.proto\x1a$google/protobuf/source_context.proto\"\xe8\x01\n\x04Type\x12\x0c\n\x04name\x18\x01 \x01(\t\x12&\n\x06\x66ields\x18\x02 \x03(\x0b\x32\x16.google.protobuf.Field\x12\x0e\n\x06oneofs\x18\x03 \x03(\t\x12(\n\x07options\x18\x04 \x03(\x0b\x32\x17.google.protobuf.Option\x12\x36\n\x0esource_context\x18\x05 \x01(\x0b\x32\x1e.google.protobuf.SourceContext\x12\'\n\x06syntax\x18\x06 \x01(\x0e\x32\x17.google.protobuf.Syntax\x12\x0f\n\x07\x65\x64ition\x18\x07 \x01(\t\"\xd5\x05\n\x05\x46ield\x12)\n\x04kind\x18\x01 \x01(\x0e\x32\x1b.google.protobuf.Field.Kind\x12\x37\n\x0b\x63\x61rdinality\x18\x02 \x01(\x0e\x32\".google.protobuf.Field.Cardinality\x12\x0e\n\x06number\x18\x03 \x01(\x05\x12\x0c\n\x04name\x18\x04 \x01(\t\x12\x10\n\x08type_url\x18\x06 \x01(\t\x12\x13\n\x0boneof_index\x18\x07 \x01(\x05\x12\x0e\n\x06packed\x18\x08 \x01(\x08\x12(\n\x07options\x18\t \x03(\x0b\x32\x17.google.protobuf.Option\x12\x11\n\tjson_name\x18\n \x01(\t\x12\x15\n\rdefault_value\x18\x0b \x01(\t\"\xc8\x02\n\x04Kind\x12\x10\n\x0cTYPE_UNKNOWN\x10\x00\x12\x0f\n\x0bTYPE_DOUBLE\x10\x01\x12\x0e\n\nTYPE_FLOAT\x10\x02\x12\x0e\n\nTYPE_INT64\x10\x03\x12\x0f\n\x0bTYPE_UINT64\x10\x04\x12\x0e\n\nTYPE_INT32\x10\x05\x12\x10\n\x0cTYPE_FIXED64\x10\x06\x12\x10\n\x0cTYPE_FIXED32\x10\x07\x12\r\n\tTYPE_BOOL\x10\x08\x12\x0f\n\x0bTYPE_STRING\x10\t\x12\x0e\n\nTYPE_GROUP\x10\n\x12\x10\n\x0cTYPE_MESSAGE\x10\x0b\x12\x0e\n\nTYPE_BYTES\x10\x0c\x12\x0f\n\x0bTYPE_UINT32\x10\r\x12\r\n\tTYPE_ENUM\x10\x0e\x12\x11\n\rTYPE_SFIXED32\x10\x0f\x12\x11\n\rTYPE_SFIXED64\x10\x10\x12\x0f\n\x0bTYPE_SINT32\x10\x11\x12\x0f\n\x0bTYPE_SINT64\x10\x12\"t\n\x0b\x43\x61rdinality\x12\x17\n\x13\x43\x41RDINALITY_UNKNOWN\x10\x00\x12\x18\n\x14\x43\x41RDINALITY_OPTIONAL\x10\x01\x12\x18\n\x14\x43\x41RDINALITY_REQUIRED\x10\x02\x12\x18\n\x14\x43\x41RDINALITY_REPEATED\x10\x03\"\xdf\x01\n\x04\x45num\x12\x0c\n\x04name\x18\x01 \x01(\t\x12-\n\tenumvalue\x18\x02 \x03(\x0b\x32\x1a.google.protobuf.EnumValue\x12(\n\x07options\x18\x03 \x03(\x0b\x32\x17.google.protobuf.Option\x12\x36\n\x0esource_context\x18\x04 \x01(\x0b\x32\x1e.google.protobuf.SourceContext\x12\'\n\x06syntax\x18\x05 \x01(\x0e\x32\x17.google.protobuf.Syntax\x12\x0f\n\x07\x65\x64ition\x18\x06 \x01(\t\"S\n\tEnumValue\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x0e\n\x06number\x18\x02 \x01(\x05\x12(\n\x07options\x18\x03 \x03(\x0b\x32\x17.google.protobuf.Option\";\n\x06Option\x12\x0c\n\x04name\x18\x01 \x01(\t\x12#\n\x05value\x18\x02 \x01(\x0b\x32\x14.google.protobuf.Any*C\n\x06Syntax\x12\x11\n\rSYNTAX_PROTO2\x10\x00\x12\x11\n\rSYNTAX_PROTO3\x10\x01\x12\x13\n\x0fSYNTAX_EDITIONS\x10\x02\x42{\n\x13\x63om.google.protobufB\tTypeProtoP\x01Z-google.golang.org/protobuf/types/known/typepb\xf8\x01\x01\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    Type = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Type").msgclass
+    Field = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Field").msgclass
+    Field::Kind = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Field.Kind").enummodule
+    Field::Cardinality = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Field.Cardinality").enummodule
+    Enum = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Enum").msgclass
+    EnumValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.EnumValue").msgclass
+    Option = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Option").msgclass
+    Syntax = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Syntax").enummodule
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/well_known_types.rb

@@ -0,0 +1,211 @@
+#!/usr/bin/ruby
+# Protocol Buffers - Google's data interchange format
+# Copyright 2008 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+require 'google/protobuf/any_pb'
+require 'google/protobuf/duration_pb'
+require 'google/protobuf/field_mask_pb'
+require 'google/protobuf/struct_pb'
+require 'google/protobuf/timestamp_pb'
+
+module Google
+  module Protobuf
+
+    Any.class_eval do
+      def self.pack(msg, type_url_prefix='type.googleapis.com/')
+        any = self.new
+        any.pack(msg, type_url_prefix)
+        any
+      end
+
+      def pack(msg, type_url_prefix='type.googleapis.com/')
+        if type_url_prefix.empty? or type_url_prefix[-1] != '/' then
+          self.type_url = "#{type_url_prefix}/#{msg.class.descriptor.name}"
+        else
+          self.type_url = "#{type_url_prefix}#{msg.class.descriptor.name}"
+        end
+        self.value = msg.to_proto
+      end
+
+      def unpack(klass)
+        if self.is(klass) then
+          klass.decode(self.value)
+        else
+          nil
+        end
+      end
+
+      def type_name
+        return self.type_url.split("/")[-1]
+      end
+
+      def is(klass)
+        return self.type_name == klass.descriptor.name
+      end
+    end
+
+    Timestamp.class_eval do
+      def to_time
+        Time.at(seconds, nanos, :nanosecond)
+      end
+
+      def self.from_time(time)
+        new.from_time(time)
+      end
+
+      def from_time(time)
+        self.seconds = time.to_i
+        self.nanos = time.nsec
+        self
+      end
+
+      def to_i
+        self.seconds
+      end
+
+      def to_f
+        self.seconds + (self.nanos.quo(1_000_000_000))
+      end
+    end
+
+    Duration.class_eval do
+      def to_f
+        self.seconds + (self.nanos.to_f / 1_000_000_000)
+      end
+    end
+
+    class UnexpectedStructType < Google::Protobuf::Error; end
+
+    Value.class_eval do
+      def to_ruby(recursive = false)
+        case self.kind
+        when :struct_value
+          if recursive
+            self.struct_value.to_h
+          else
+            self.struct_value
+          end
+        when :list_value
+          if recursive
+            self.list_value.to_a
+          else
+            self.list_value
+          end
+        when :null_value
+          nil
+        when :number_value
+          self.number_value
+        when :string_value
+          self.string_value
+        when :bool_value
+          self.bool_value
+        else
+          raise UnexpectedStructType
+        end
+      end
+
+      def self.from_ruby(value)
+        self.new.from_ruby(value)
+      end
+
+      def from_ruby(value)
+        case value
+        when NilClass
+          self.null_value = :NULL_VALUE
+        when Numeric
+          self.number_value = value
+        when String
+          self.string_value = value
+        when TrueClass
+          self.bool_value = true
+        when FalseClass
+          self.bool_value = false
+        when Struct
+          self.struct_value = value
+        when Hash
+          self.struct_value = Struct.from_hash(value)
+        when ListValue
+          self.list_value = value
+        when Array
+          self.list_value = ListValue.from_a(value)
+        else
+          raise UnexpectedStructType
+        end
+
+        self
+      end
+    end
+
+    Struct.class_eval do
+      def [](key)
+        self.fields[key].to_ruby
+      rescue NoMethodError
+        nil
+      end
+
+      def []=(key, value)
+        unless key.is_a?(String)
+          raise UnexpectedStructType, "Struct keys must be strings."
+        end
+        self.fields[key] ||= Google::Protobuf::Value.new
+        self.fields[key].from_ruby(value)
+      end
+
+      def to_h
+        ret = {}
+        self.fields.each { |key, val| ret[key] = val.to_ruby(true) }
+        ret
+      end
+
+      def self.from_hash(hash)
+        ret = Struct.new
+        hash.each { |key, val| ret[key] = val }
+        ret
+      end
+
+      def has_key?(key)
+        self.fields.has_key?(key)
+      end
+    end
+
+    ListValue.class_eval do
+      include Enumerable
+
+      def length
+        self.values.length
+      end
+
+      def [](index)
+        self.values[index].to_ruby
+      end
+
+      def []=(index, value)
+        self.values[index].from_ruby(value)
+      end
+
+      def <<(value)
+        wrapper = Google::Protobuf::Value.new
+        wrapper.from_ruby(value)
+        self.values << wrapper
+      end
+
+      def each
+        self.values.each { |x| yield(x.to_ruby) }
+      end
+
+      def to_a
+        self.values.map { |x| x.to_ruby(true) }
+      end
+
+      def self.from_a(arr)
+        ret = ListValue.new
+        arr.each { |val| ret << val }
+        ret
+      end
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf/wrappers_pb.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: google/protobuf/wrappers.proto
+
+require 'google/protobuf'
+
+
+descriptor_data = "\n\x1egoogle/protobuf/wrappers.proto\x12\x0fgoogle.protobuf\"\x1c\n\x0b\x44oubleValue\x12\r\n\x05value\x18\x01 \x01(\x01\"\x1b\n\nFloatValue\x12\r\n\x05value\x18\x01 \x01(\x02\"\x1b\n\nInt64Value\x12\r\n\x05value\x18\x01 \x01(\x03\"\x1c\n\x0bUInt64Value\x12\r\n\x05value\x18\x01 \x01(\x04\"\x1b\n\nInt32Value\x12\r\n\x05value\x18\x01 \x01(\x05\"\x1c\n\x0bUInt32Value\x12\r\n\x05value\x18\x01 \x01(\r\"\x1a\n\tBoolValue\x12\r\n\x05value\x18\x01 \x01(\x08\"\x1c\n\x0bStringValue\x12\r\n\x05value\x18\x01 \x01(\t\"\x1b\n\nBytesValue\x12\r\n\x05value\x18\x01 \x01(\x0c\x42\x83\x01\n\x13\x63om.google.protobufB\rWrappersProtoP\x01Z1google.golang.org/protobuf/types/known/wrapperspb\xf8\x01\x01\xa2\x02\x03GPB\xaa\x02\x1eGoogle.Protobuf.WellKnownTypesb\x06proto3"
+
+pool = ::Google::Protobuf::DescriptorPool.generated_pool
+pool.add_serialized_file(descriptor_data)
+
+module Google
+  module Protobuf
+    DoubleValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.DoubleValue").msgclass
+    FloatValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.FloatValue").msgclass
+    Int64Value = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Int64Value").msgclass
+    UInt64Value = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.UInt64Value").msgclass
+    Int32Value = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.Int32Value").msgclass
+    UInt32Value = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.UInt32Value").msgclass
+    BoolValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.BoolValue").msgclass
+    StringValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.StringValue").msgclass
+    BytesValue = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("google.protobuf.BytesValue").msgclass
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf_ffi.rb

@@ -0,0 +1,52 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2023 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+require 'ffi-compiler/loader'
+require 'google/protobuf/ffi/ffi'
+require 'google/protobuf/ffi/internal/type_safety'
+require 'google/protobuf/ffi/internal/pointer_helper'
+require 'google/protobuf/ffi/internal/arena'
+require 'google/protobuf/ffi/internal/convert'
+require 'google/protobuf/ffi/descriptor'
+require 'google/protobuf/ffi/enum_descriptor'
+require 'google/protobuf/ffi/field_descriptor'
+require 'google/protobuf/ffi/oneof_descriptor'
+require 'google/protobuf/ffi/method_descriptor'
+require 'google/protobuf/ffi/service_descriptor'
+require 'google/protobuf/ffi/file_descriptor'
+require 'google/protobuf/ffi/descriptor_pool'
+require 'google/protobuf/ffi/map'
+require 'google/protobuf/ffi/object_cache'
+require 'google/protobuf/ffi/repeated_field'
+require 'google/protobuf/ffi/message'
+
+module Google
+  module Protobuf
+    def self.deep_copy(object)
+      case object
+      when RepeatedField
+        RepeatedField.send(:deep_copy, object)
+      when Google::Protobuf::Map
+        Google::Protobuf::Map.deep_copy(object)
+      when Google::Protobuf::MessageExts
+        object.class.send(:deep_copy, object.instance_variable_get(:@msg))
+      else
+        raise NotImplementedError
+      end
+    end
+
+    def self.discard_unknown(message)
+      raise FrozenError if message.frozen?
+      raise ArgumentError.new "Expected message, got #{message.class} instead." if message.instance_variable_get(:@msg).nil?
+      pool_def = message.class.descriptor.instance_variable_get(:@descriptor_pool).descriptor_pool
+      unless Google::Protobuf::FFI.message_discard_unknown(message.instance_variable_get(:@msg), message.class.descriptor, pool_def, 128)
+        raise RuntimeError.new "Messages nested too deeply."
+      end
+      nil
+    end
+  end
+end

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/protobuf_native.rb

@@ -0,0 +1,19 @@
+# Protocol Buffers - Google's data interchange format
+# Copyright 2023 Google Inc.  All rights reserved.
+#
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+if RUBY_PLATFORM == "java"
+  require 'json'
+  require 'google/protobuf_java'
+else
+  begin
+    require "google/#{RUBY_VERSION.sub(/\.\d+$/, '')}/protobuf_c"
+  rescue LoadError
+    require 'google/protobuf_c'
+  end
+end
+
+require 'google/protobuf/repeated_field'

bin/gems/google-protobuf-4.36.1-x86_64-linux-gnu/lib/google/tasks/ffi.rake

@@ -0,0 +1,100 @@
+# # @param task [FFI::Compiler::CompileTask] task to configure
+def configure_common_compile_task(task)
+  if FileUtils.pwd.include? 'ext'
+    src_dir = '.'
+    third_party_path = 'third_party/utf8_range'
+  else
+    src_dir = 'ext/google/protobuf_c'
+    third_party_path = 'ext/google/protobuf_c/third_party/utf8_range'
+  end
+
+  task.add_include_path third_party_path
+  task.add_define 'NDEBUG'
+  task.cflags << "-std=gnu99 -O3"
+  [
+    :convert, :defs, :map, :message, :protobuf, :repeated_field
+  ].each { |file| task.exclude << "/#{file}.c" }
+  task.ext_dir = src_dir
+  task.source_dirs = [src_dir]
+  if RbConfig::CONFIG['target_os'] =~ /darwin|linux/
+    task.cflags << "-Wall -Wsign-compare -Wno-declaration-after-statement"
+  end
+end
+
+# FFI::CompilerTask's constructor walks the filesystem at task definition time
+# to create subtasks for each source file, so files from third_party must be
+# copied into place before the task is defined for it to work correctly.
+# TODO Is there a sane way to check for generated protos under lib too?
+def with_generated_files
+  expected_path = FileUtils.pwd.include?('ext') ? 'third_party/utf8_range' : 'ext/google/protobuf_c/third_party/utf8_range'
+  if File.directory?(expected_path)
+    yield
+  else
+    task :default do
+      # It is possible, especially in cases like the first invocation of
+      # `rake test` following `rake clean` or a fresh checkout that the
+      # `copy_third_party` task has been executed since initial task definition.
+      # If so, run the task definition block now and invoke it explicitly.
+      if File.directory?(expected_path)
+        yield
+        Rake::Task[:default].invoke
+      else
+        raise "Missing directory #{File.absolute_path(expected_path)}." +
+                " Did you forget to run `rake copy_third_party` before building" +
+                " native extensions?"
+      end
+    end
+  end
+end
+
+begin
+  require "ffi-compiler/compile_task"
+
+  desc "Compile Protobuf library for FFI"
+  namespace "ffi-protobuf" do
+    with_generated_files do
+      # Compile Ruby UPB separately in order to limit use of -DUPB_BUILD_API to one
+      # compilation unit.
+      desc "Compile UPB library for FFI"
+      namespace "ffi-upb" do
+        with_generated_files do
+          FFI::Compiler::CompileTask.new('ruby-upb') do |c|
+            configure_common_compile_task c
+            c.add_define "UPB_BUILD_API"
+            c.exclude << "/glue.c"
+            c.exclude << "/shared_message.c"
+            c.exclude << "/shared_convert.c"
+            if RbConfig::CONFIG['target_os'] =~ /darwin|linux/
+              c.cflags << "-fvisibility=hidden"
+            end
+          end
+        end
+      end
+
+      FFI::Compiler::CompileTask.new 'protobuf_c_ffi' do |c|
+        configure_common_compile_task c
+        # Ruby UPB was already compiled with different flags.
+        c.exclude << "/utf8_range.c"
+        c.exclude << "/ruby-upb.c"
+      end
+
+      # Setup dependencies so that the .o files generated by building ffi-upb are
+      # available to link here.
+      # TODO Can this be simplified? Can the single shared library be used
+      # instead of the object files?
+      protobuf_c_task = Rake::Task[:default]
+      protobuf_c_shared_lib_task = Rake::Task[protobuf_c_task.prereqs.last]
+      ruby_upb_shared_lib_task = Rake::Task[:"ffi-upb:default"].prereqs.first
+      Rake::Task[ruby_upb_shared_lib_task].prereqs.each do |dependency|
+        protobuf_c_shared_lib_task.prereqs.prepend dependency
+      end
+    end
+  end
+rescue LoadError
+  desc "Compile Protobuf library for FFI"
+  namespace "ffi-protobuf" do
+    task :default do
+      warn "Skipping build of FFI; `gem install ffi-compiler` to enable."
+    end
+  end
+end