Module: Protobug::Compiler::Descriptor

Included in:
DescriptorProto, EnumDescriptorProto, EnumValueDescriptorProto, FieldDescriptorProto, FileDescriptorProto, OneofDescriptorProto, ServiceDescriptorProto
Defined in:
lib/protobug/compiler.rb

Defined Under Namespace

Modules: ClassMethods

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#descriptor ⇒ Object (readonly)

Returns the value of attribute descriptor.



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# File 'lib/protobug/compiler.rb', line 62

def descriptor
  @descriptor
end

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'lib/protobug/compiler.rb', line 62

def file
  @file
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/protobug/compiler.rb', line 62

def parent
  @parent
end

#source_loc ⇒ Object (readonly)

Returns the value of attribute source_loc.



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# File 'lib/protobug/compiler.rb', line 62

def source_loc
  @source_loc
end

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/protobug/compiler.rb', line 110

def self.included(base)
  base.extend(ClassMethods)
  base.class_eval do
    methods = []

    fields_by_name.each do |name, field|
      unless field.is_a?(Field::MessageField) &&
             /\Agoogle\.protobuf\.([^.]*Descriptor[^.]*)\z/ =~ field.message_type
        next
      end
      raise "expected #{self}.#{name} to be repeated" unless field.repeated?

      message_name = Regexp.last_match(1)

      methods << name

      define_method(name) do
        field_type = Compiler.const_get(message_name)
        super().map.with_index { |d, idx| field_type.new(d, self, path: @path + [field.number, idx]) }
      end
    end

    define_method(:each_declaration) do |&blk|
      return enum_for(__method__) unless blk # rubocop:disable Lint/ToEnumArguments

      decls = methods.flat_map { send(_1) }
      decls.sort_by! { |d| d.source_loc&.span || [] }
      decls.each(&blk)
      nil
    end
  end
end

Instance Method Details

#full_name ⇒ Object 



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# File 'lib/protobug/compiler.rb', line 88

def full_name
  if parent
    "#{parent.full_name}.#{name}"
  else
    descriptor.package
  end
end

#initialize(descriptor, parent, path:) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/protobug/compiler.rb', line 64

def initialize(descriptor, parent, path:)
  unless descriptor.is_a?(self.class.descriptor_class)
    raise ArgumentError,
          "#{descriptor.class} (#{descriptor}) is not #{self.class.descriptor_class}"
  end

  raise ArgumentError, "parent must be a Descriptor" if parent && !parent.is_a?(Descriptor)

  @descriptor = descriptor
  @parent = parent
  @file = parent&.file || self
  @path = path

  super(descriptor)

  @source_loc = if parent
                  file.source_code_info.location.find do |loc|
                    loc.path == path
                  end
                else
                  source_code_info.location[1]
                end
end

#to_constant ⇒ Object 



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# File 'lib/protobug/compiler.rb', line 96

def to_constant
  if parent
    "#{parent.to_constant}::#{name}"
  else
    return file.options.ruby_package if file.options&.ruby_package?

    parts = descriptor.package.split(".")
    parts.map! do |part|
      part.split("_").map(&:capitalize).join
    end
    parts.join("::")
  end
end