Class: Code::Object::Function

Inherits:
Code::Object show all
Defined in:
lib/code/object/function.rb

Constant Summary

Constants inherited from Code::Object

NUMBER_CLASSES

Instance Attribute Summary collapse

Attributes included from Concerns::Shared

#methods, #raw

Instance Method Summary collapse

Methods inherited from Code::Object

code_new, #code_new, maybe, #name, repeat, |

Methods included from Concerns::Shared

#<=>, #==, #as_json, #code_and, #code_as_json, #code_compare, #code_deep_duplicate, #code_different, #code_duplicate, #code_equal, #code_exclamation_mark, #code_exclusive_range, #code_falsy?, code_fetch, #code_fetch, code_get, #code_get, #code_greater, #code_greater_or_equal, #code_inclusive_range, #code_inspect, #code_less, #code_less_or_equal, #code_methods, #code_name, #code_nothing?, #code_or, #code_self, #code_set, code_set, #code_something?, #code_strict_different, #code_strict_equal, #code_to_boolean, #code_to_class, #code_to_date, #code_to_decimal, #code_to_dictionary, #code_to_duration, #code_to_integer, #code_to_json, #code_to_list, #code_to_nothing, #code_to_parameter, #code_to_range, #code_to_string, #code_to_time, #code_truthy?, #eql?, #falsy?, #hash, #inspect, #multi_fetch, #nothing?, #sig, #something?, #succ, #to_code, #to_i, #to_json, #to_s, #truthy?

Constructor Details

#initialize(*args, **_kargs, &_block) ⇒ Function

Returns a new instance of Function.



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# File 'lib/code/object/function.rb', line 8

def initialize(*args, **_kargs, &_block)
  @code_parameters =
    List
      .new(args.first)
      .raw
      .map { |parameter| Parameter.new(parameter) }
      .to_code

  @code_body = Code.new(args.second.presence)

  self.raw = List.new([code_parameters, code_body])
end

Instance Attribute Details

#code_body ⇒ Object (readonly)

Returns the value of attribute code_body.



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# File 'lib/code/object/function.rb', line 6

def code_body
  @code_body
end

#code_parameters ⇒ Object (readonly)

Returns the value of attribute code_parameters.



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# File 'lib/code/object/function.rb', line 6

def code_parameters
  @code_parameters
end

Instance Method Details

#call(**args) ⇒ Object 



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# File 'lib/code/object/function.rb', line 21

def call(**args)
  code_operator = args.fetch(:operator, nil).to_code
  code_arguments = args.fetch(:arguments, List.new).to_code
  globals = multi_fetch(args, *GLOBALS)

  case code_operator.to_s
  when "", "call"
    sig(args) { signature_for_call }
    code_call(*code_arguments.raw, **globals)
  else
    super
  end
end

#code_call(*arguments, **globals) ⇒ Object 



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# File 'lib/code/object/function.rb', line 35

def code_call(*arguments, **globals)
  code_arguments = arguments.to_code
  code_context = Context.new({}, globals[:context])

  code_parameters.raw.each.with_index do |code_parameter, index|
    code_argument =
      if code_parameter.spread?
        code_arguments
      elsif code_parameter.regular_splat?
        code_arguments
      elsif code_parameter.keyword_splat?
        code_arguments.raw.detect do |code_argument|
          code_argument.is_a?(Dictionary)
        end || Dictionary.new
      elsif code_parameter.block?
        code_arguments
          .raw
          .detect { |code_argument| code_argument.is_a?(Function) }
          .to_code
      elsif code_parameter.keyword?
        code_arguments
          .raw
          .select { |code_argument| code_argument.is_a?(Dictionary) }
          .detect do |code_dictionary|
            code_dictionary.code_has_key?(
              code_parameter.code_name
            ).truthy?
          end
          &.code_get(code_parameter.code_name)
          .to_code
      else
        code_arguments.raw[index].to_code
      end

    code_argument = code_parameter.code_default if code_argument.nothing?

    code_context.code_set(code_parameter.code_name, code_argument)
  end

  code_body.code_evaluate(**globals, context: code_context)
end

#signature_for_call ⇒ Object 



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# File 'lib/code/object/function.rb', line 77

def signature_for_call
  code_parameters
    .raw
    .inject([]) do |signature, code_parameter|
      if code_parameter.spread?
        signature + [Object.repeat]
      elsif code_parameter.block?
        signature + [Function]
      elsif code_parameter.keyword_splat?
        signature + [Dictionary.maybe]
      elsif code_parameter.regular_splat?
        signature + [Object.repeat]
      elsif code_parameter.keyword? && code_parameter.required?
        if signature.last.is_a?(::Hash)
          signature.last[code_parameter.code_name] = Object
          signature
        else
          signature + [{ code_parameter.code_name => Object }]
        end
      elsif code_parameter.keyword?
        if signature.last.is_a?(::Hash)
          signature.last[code_parameter.code_name] = Object.maybe
          signature
        else
          signature + [{ code_parameter.code_name => Object.maybe }]
        end
      elsif code_parameter.required?
        signature + [Object]
      else
        signature + [Object.maybe]
      end
    end + [Object.repeat]
end