Add bin and edit workflow

bin/gems/pry-0.15.2/lib/pry/exceptions.rb

@@ -0,0 +1,73 @@
+# frozen_string_literal: true
+
+class Pry
+  # As a REPL, we often want to catch any unexpected exceptions that may have
+  # been raised; however we don't want to go overboard and prevent the user
+  # from exiting Pry when they want to.
+  module RescuableException
+    def self.===(exception)
+      case exception
+        # Catch when the user hits ^C (Interrupt < SignalException), and assume
+        # that they just wanted to stop the in-progress command (just like bash
+        # etc.)
+      when Interrupt
+        true
+        # Don't catch signals (particularly not SIGTERM) as these are unlikely
+        # to be intended for pry itself. We should also make sure that
+        # Kernel#exit works.
+      when *Pry.config.unrescued_exceptions
+        false
+        # All other exceptions will be caught.
+      else
+        true
+      end
+    end
+  end
+
+  # Catches SecurityErrors if $SAFE is set
+  module TooSafeException
+    def self.===(exception)
+      if Pry::HAS_SAFE_LEVEL
+        $SAFE > 0 && exception.is_a?(SecurityError)
+      else
+        exception.is_a?(SecurityError)
+      end
+    end
+  end
+
+  # An Exception Tag (cf. Exceptional Ruby) that instructs Pry to show the error
+  # in a more user-friendly manner. This should be used when the exception
+  # happens within Pry itself as a direct consequence of the user typing
+  # something wrong.
+  #
+  # This allows us to distinguish between the user typing:
+  #
+  # pry(main)> def )
+  # SyntaxError: unexpected )
+  #
+  # pry(main)> method_that_evals("def )")
+  # SyntaxError: (eval):1: syntax error, unexpected ')'
+  # from ./a.rb:2 in `eval'
+  module UserError; end
+
+  # When we try to get a binding for an object, we try to define a method on
+  # that Object's singleton class. This doesn't work for "frozen" Object's, and
+  # the exception is just a vanilla RuntimeError.
+  module FrozenObjectException
+    def self.===(exception)
+      [
+        "can't modify frozen class/module",
+        "can't modify frozen Class",
+        "can't modify frozen object"
+      ].include?(exception.message)
+    end
+  end
+
+  # CommandErrors are caught by the REPL loop and displayed to the user. They
+  # indicate an exceptional condition that's fatal to the current command.
+  class CommandError < StandardError; end
+  class MethodNotFound < CommandError; end
+
+  # indicates obsolete API
+  class ObsoleteError < StandardError; end
+end