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Diffstat (limited to 'tool/ruby_vm/loaders/insns_def.rb')
-rw-r--r-- | tool/ruby_vm/loaders/insns_def.rb | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/tool/ruby_vm/loaders/insns_def.rb b/tool/ruby_vm/loaders/insns_def.rb new file mode 100644 index 0000000000..58748c3ca6 --- /dev/null +++ b/tool/ruby_vm/loaders/insns_def.rb @@ -0,0 +1,92 @@ +#! /your/favourite/path/to/ruby +# -*- mode: ruby; coding: utf-8; indent-tabs-mode: nil; ruby-indent-level: 2 -*- +# -*- frozen_string_literal: true; -*- +# -*- warn_indent: true; -*- +# +# Copyright (c) 2017 Urabe, Shyouhei. All rights reserved. +# +# This file is a part of the programming language Ruby. Permission is hereby +# granted, to either redistribute and/or modify this file, provided that the +# conditions mentioned in the file COPYING are met. Consult the file for +# details. + +require_relative '../helpers/scanner' + +json = [] +scanner = RubyVM::Scanner.new '../../../insns.def' +path = scanner.__FILE__ +grammar = %r' + (?<comment> /[*] [^*]* [*]+ (?: [^*/] [^*]* [*]+ )* / ){0} + (?<keyword> typedef | extern | static | auto | register | + struct | union | enum ){0} + (?<C> (?: \g<block> | [^{}]+ )* ){0} + (?<block> \{ \g<ws>* ^ \g<C> $ \g<ws>* \} ){0} + (?<ws> \g<comment> | \s ){0} + (?<ident> [_a-zA-Z] [0-9_a-zA-Z]* ){0} + (?<type> (?: \g<keyword> \g<ws>+ )* \g<ident> ){0} + (?<arg> \g<type> \g<ws>+ \g<ident> | \.\.\. ){0} + (?<argv> (?# empty ) | + void | + \g<arg> (?: \g<ws>* , \g<ws>* \g<arg> \g<ws>* )* ){0} + (?<pragma> \g<ws>* // \s* attr \g<ws>+ + (?<pragma:type> \g<type> ) \g<ws>+ + (?<pragma:name> \g<ident> ) \g<ws>* + = \g<ws>* + (?<pragma:expr> .+?; ) \g<ws>* ){0} + (?<insn> DEFINE_INSN \g<ws>+ + (?<insn:name> \g<ident> ) \g<ws>* + [(] \g<ws>* (?<insn:opes> \g<argv> ) \g<ws>* [)] \g<ws>* + [(] \g<ws>* (?<insn:pops> \g<argv> ) \g<ws>* [)] \g<ws>* + [(] \g<ws>* (?<insn:rets> \g<argv> ) \g<ws>* [)] \g<ws>* ){0} +'x + +until scanner.eos? do + next if scanner.scan(/#{grammar}\g<ws>+/o) + split = -> (v) { + case v when /\Avoid\z/ then + [] + else + v.split(/, */) + end + } + + l1 = scanner.scan!(/#{grammar}\g<insn>/o) + name = scanner["insn:name"] + ope = split.(scanner["insn:opes"]) + pop = split.(scanner["insn:pops"]) + ret = split.(scanner["insn:rets"]) + + attrs = [] + while l2 = scanner.scan(/#{grammar}\g<pragma>/o) do + attrs << { + location: [path, l2], + name: scanner["pragma:name"], + type: scanner["pragma:type"], + expr: scanner["pragma:expr"], + } + end + + l3 = scanner.scan!(/#{grammar}\g<block>/o) + json << { + name: name, + location: [path, l1], + signature: { + name: name, + ope: ope, + pop: pop, + ret: ret, + }, + attributes: attrs, + expr: { + location: [path, l3], + expr: scanner["block"], + }, + } +end + +RubyVM::InsnsDef = json + +if __FILE__ == $0 then + require 'json' + JSON.dump RubyVM::InsnsDef, STDOUT +end |