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cd2a49f3c7
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26593 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
120 lines
3.2 KiB
Ruby
Executable file
120 lines
3.2 KiB
Ruby
Executable file
# This file is interpreted by $(BASERUBY) and miniruby.
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# $(BASERUBY) is used for miniprelude.c.
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# miniruby is used for prelude.c.
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# Since $(BASERUBY) may be older than Ruby 1.9,
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# Ruby 1.9 feature should not be used.
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$:.unshift(File.expand_path("../..", __FILE__))
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preludes = ARGV.dup
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outfile = preludes.pop
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init_name = outfile[/\w+(?=_prelude.c\b)/] || 'prelude'
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C_ESC = {
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"\\" => "\\\\",
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'"' => '\"',
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"\n" => '\n',
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}
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0x00.upto(0x1f) {|ch| C_ESC[[ch].pack("C")] ||= "\\%03o" % ch }
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0x7f.upto(0xff) {|ch| C_ESC[[ch].pack("C")] = "\\%03o" % ch }
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C_ESC_PAT = Regexp.union(*C_ESC.keys)
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def c_esc(str)
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'"' + str.gsub(C_ESC_PAT) { C_ESC[$&] } + '"'
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end
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def prelude_name(*path_nests)
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prelude = path_nests.map{|prelude_path| File.basename(prelude_path, ".rb") }.join(":")
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"<internal:" + prelude + ">"
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end
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mkconf = nil
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setup_ruby_prefix = nil
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teardown_ruby_prefix = nil
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lines_list = preludes.map {|filename|
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lines = []
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need_ruby_prefix = false
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File.readlines(filename).each {|line|
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line.gsub!(/RbConfig::CONFIG\["(\w+)"\]/) {
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key = $1
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unless mkconf
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require './rbconfig'
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mkconf = RbConfig::MAKEFILE_CONFIG.merge('prefix'=>'#{TMP_RUBY_PREFIX}')
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setup_ruby_prefix = "TMP_RUBY_PREFIX = $:.reverse.find{|e|e!=\".\"}.sub(%r{(.*)/lib/.*}m, \"\\\\1\")\n"
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teardown_ruby_prefix = 'Object.class_eval { remove_const "TMP_RUBY_PREFIX" }'
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end
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if RbConfig::MAKEFILE_CONFIG.has_key? key
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val = RbConfig.expand("$(#{key})", mkconf)
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need_ruby_prefix = true if /\A\#\{TMP_RUBY_PREFIX\}/ =~ val
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c_esc(val)
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else
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"nil"
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end
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}
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if /require\s*\(?\s*(["'])(.*?)\1\s*\)?/ =~ line
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orig, path = $&, $2
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srcdir = File.expand_path("../..", __FILE__)
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path = File.expand_path(path, srcdir)
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if File.exist?(path)
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lines << c_esc("eval(")
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File.readlines(path).each do |line|
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lines << c_esc(line.dump)
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end
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lines << c_esc(", TOPLEVEL_BINDING, %s, %d)" % [ prelude_name(filename, path).dump, 1])
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else
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lines << c_esc(orig)
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end
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else
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lines << c_esc(line)
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end
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}
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setup_lines = []
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if need_ruby_prefix
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setup_lines << c_esc(setup_ruby_prefix)
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lines << c_esc(teardown_ruby_prefix)
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end
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[setup_lines, lines]
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}
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require 'erb'
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tmp = ERB.new(<<'EOS', nil, '%').result(binding)
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/* -*-c-*-
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THIS FILE WAS AUTOGENERATED BY tool/compile_prelude.rb. DO NOT EDIT.
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soruces: <%= preludes.join(', ') %>
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*/
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#include "ruby/ruby.h"
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#include "vm_core.h"
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% preludes.zip(lines_list).each_with_index {|(prelude, (setup_lines, lines)), i|
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static const char prelude_name<%=i%>[] = <%=c_esc(prelude_name(prelude))%>;
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static const char prelude_code<%=i%>[] =
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% (setup_lines+lines).each {|line|
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<%=line%>
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% }
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;
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% }
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void
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Init_<%=init_name%>(void)
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{
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% lines_list.each_with_index {|(setup_lines, lines), i|
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rb_iseq_eval(rb_iseq_compile(
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rb_usascii_str_new(prelude_code<%=i%>, sizeof(prelude_code<%=i%>) - 1),
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rb_usascii_str_new(prelude_name<%=i%>, sizeof(prelude_name<%=i%>) - 1),
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INT2FIX(<%=1-setup_lines.length%>)));
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% }
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#if 0
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% preludes.length.times {|i|
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puts(prelude_code<%=i%>);
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% }
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#endif
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}
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EOS
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open(outfile, 'w'){|f|
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f << tmp
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}
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