137 lines
3.1 KiB
Ruby
137 lines
3.1 KiB
Ruby
# frozen_string_literal: true
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module Sass
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# The abstract base class of Sass's value types.
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#
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# @see https://sass-lang.com/documentation/js-api/classes/value/
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module Value
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# @return [::String, nil]
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def separator
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nil
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end
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# @return [::Boolean]
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def bracketed?
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false
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end
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# @return [::Boolean]
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def eql?(other)
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self == other
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end
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# @param index [Numeric]
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# @return [Value]
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def [](index)
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at(index)
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end
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# @param index [Numeric]
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# @return [Value]
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def at(index)
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index < 1 && index >= -1 ? self : nil
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end
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# @return [Array<Value>]
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def to_a
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[self]
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end
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# @return [::Boolean]
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def to_bool # rubocop:disable Naming/PredicateMethod
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true
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end
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# @return [Map, nil]
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def to_map
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nil
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end
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# @return [Value, nil]
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def to_nil
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self
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end
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# @return [Boolean]
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# @raise [ScriptError]
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def assert_boolean(name = nil)
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raise Sass::ScriptError.new("#{self} is not a boolean", name)
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end
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# @return [Calculation]
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# @raise [ScriptError]
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def assert_calculation(name = nil)
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raise Sass::ScriptError.new("#{self} is not a calculation", name)
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end
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# @return [Color]
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# @raise [ScriptError]
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def assert_color(name = nil)
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raise Sass::ScriptError.new("#{self} is not a color", name)
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end
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# @return [Function]
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# @raise [ScriptError]
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def assert_function(name = nil)
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raise Sass::ScriptError.new("#{self} is not a function", name)
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end
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# @return [Map]
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# @raise [ScriptError]
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def assert_map(name = nil)
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raise Sass::ScriptError.new("#{self} is not a map", name)
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end
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# @return [Mixin]
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# @raise [ScriptError]
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def assert_mixin(name = nil)
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raise Sass::ScriptError.new("#{self} is not a mixin", name)
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end
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# @return [Number]
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# @raise [ScriptError]
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def assert_number(name = nil)
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raise Sass::ScriptError.new("#{self} is not a number", name)
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end
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# @return [String]
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# @raise [ScriptError]
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def assert_string(name = nil)
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raise Sass::ScriptError.new("#{self} is not a string", name)
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end
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# @param sass_index [Number]
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# @return [Integer]
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def sass_index_to_array_index(sass_index, name = nil)
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index = sass_index.assert_number(name).assert_integer(name)
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raise Sass::ScriptError.new('List index may not be 0', name) if index.zero?
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if index.abs > to_a_length
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raise Sass::ScriptError.new("Invalid index #{sass_index} for a list with #{to_a_length} elements", name)
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end
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index.negative? ? to_a_length + index : index - 1
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end
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private
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def to_a_length
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1
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end
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end
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end
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require_relative 'calculation_value'
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require_relative 'value/list'
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require_relative 'value/argument_list'
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require_relative 'value/boolean'
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require_relative 'value/calculation'
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require_relative 'value/color'
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require_relative 'value/function'
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require_relative 'value/fuzzy_math'
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require_relative 'value/map'
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require_relative 'value/mixin'
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require_relative 'value/null'
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require_relative 'value/number'
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require_relative 'value/string'
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