summaryrefslogtreecommitdiff
path: root/tool/ruby_vm/models/c_expr.rb
diff options
context:
space:
mode:
authorshyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-01-09 13:30:31 +0000
committershyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-01-09 13:30:31 +0000
commit55317a74f7df73bb3531ade54418c4bf6f95b30b (patch)
treee83ff5745104434e1373cafe8bb5a859a05b59c2 /tool/ruby_vm/models/c_expr.rb
parentae4045f0cab0a9188124a00f55fdb804a3ec1cfd (diff)
delete tool/instruction.rb
Previous commit changed insns.def format. Now is the time for its generators. In doing so I chose to modernize the system, not just patch. My attempt includes - extensive use of Onigumo regular expressions - split from one big file (instruction.rb) into separated MVC - partial view Also, let me take this opportunity to kill old unused features such as - stack caching - minsns / yasmdata which are never seriously used - yarvarch document generation (moved to doc/) - vast majority of unused arguments to insns2vm.rb This commit generates VM source codes that cleanly compile, and the generated binary passes tests. At least for me. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'tool/ruby_vm/models/c_expr.rb')
-rw-r--r--tool/ruby_vm/models/c_expr.rb41
1 files changed, 41 insertions, 0 deletions
diff --git a/tool/ruby_vm/models/c_expr.rb b/tool/ruby_vm/models/c_expr.rb
new file mode 100644
index 0000000000..b19dd8bb48
--- /dev/null
+++ b/tool/ruby_vm/models/c_expr.rb
@@ -0,0 +1,41 @@
+#! /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/c_escape.rb'
+
+class RubyVM::CExpr
+ include RubyVM::CEscape
+
+ attr_reader :__FILE__, :__LINE__, :expr
+
+ def initialize location:, expr:
+ @__FILE__ = location[0]
+ @__LINE__ = location[1]
+ @expr = expr
+ end
+
+ # blank, in sense of C program.
+ RE = %r'\A{\g<s>*}\z|\A(?<s>\s|/[*][^*]*[*]+([^*/][^*]*[*]+)*/)*\z'
+ if RUBY_VERSION > '2.4' then
+ def blank?
+ RE.match? @expr
+ end
+ else
+ def blank?
+ RE =~ @expr
+ end
+ end
+
+ def inspect
+ sprintf "#<%s:%d %s>", @__FILE__, @__LINE__, @expr
+ end
+end