Module: Twirp::ProtocPlugin

Defined in:
lib/twirp/protoc_plugin/process.rb,
lib/twirp/protoc_plugin/version.rb,
lib/twirp/protoc_plugin/code_generator.rb

Defined Under Namespace

Classes: CodeGenerator, Error

Constant Summary collapse

VERSION = 
"1.2.0"

Class Method Summary collapse

Class Method Details

.process(input) ⇒ String

Returns an encoded [Google::Protobuf::Compiler::CodeGeneratorResponse] message.

Parameters:

  • input (String) —

    an encoded [Google::Protobuf::Compiler::CodeGeneratorRequest] message

Returns:

  • (String) —

    an encoded [Google::Protobuf::Compiler::CodeGeneratorResponse] message

Raises:

  • (ArgumentError) —

    when a required parameter is missing, a parameter value is invalid, or an unrecognized parameter is present on the command line



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# File 'lib/twirp/protoc_plugin/process.rb', line 18

def process(input)
  request = Google::Protobuf::Compiler::CodeGeneratorRequest.decode(input)

  options = extract_options(request.parameter)

  response = Google::Protobuf::Compiler::CodeGeneratorResponse.new
  response.supported_features = Google::Protobuf::Compiler::CodeGeneratorResponse::Feature::FEATURE_PROTO3_OPTIONAL

  request.proto_file.each do |proto_file| # proto_file: <Google::Protobuf::FileDescriptorProto>
    next unless request.file_to_generate.include?(proto_file.name)
    next unless proto_file.has_service? # do not generate when no services defined

    file = Google::Protobuf::Compiler::CodeGeneratorResponse::File.new
    file.name = proto_file.twirp_output_filename
    file.content = CodeGenerator.new(proto_file, proto_file.relative_ruby_protobuf_name, options).generate

    response.file << file
  end

  response.to_proto
end