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proc.c: frozen core methods

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* proc.c (mproc, mlambda): use frozen core methods instead of plain
  global methods, so that methods cannot be overridden.
  [ruby-core:54687] [Bug #8345]
* vm.c (Init_VM): define proc and lambda on the frozen core object.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40528 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-04-30 03:31:43 +00:00
parent e9fa3108f1
commit 787cdae5df
4 changed files with 22 additions and 3 deletions
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8
ChangeLog
View file

@ -1,4 +1,10 @@
Tue Apr 30 12:30:18 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
Tue Apr 30 12:31:40 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* proc.c (mproc, mlambda): use frozen core methods instead of plain
global methods, so that methods cannot be overridden.
[ruby-core:54687] [Bug #8345]
* vm.c (Init_VM): define proc and lambda on the frozen core object.
* include/ruby/intern.h (rb_block_lambda): add declaration instead of
deprecated rb_f_lambda.

4
proc.c
View file

@ -2000,13 +2000,13 @@ method_inspect(VALUE method)
static VALUE
mproc(VALUE method)
{
return rb_funcall(Qnil, rb_intern("proc"), 0);
return rb_funcall2(rb_mRubyVMFrozenCore, rb_intern("proc"), 0, 0);
}
static VALUE
mlambda(VALUE method)
{
return rb_funcall(Qnil, rb_intern("lambda"), 0);
return rb_funcall(rb_mRubyVMFrozenCore, rb_intern("lambda"), 0, 0);
}
static VALUE

11
test/ruby/test_proc.rb
View file

@ -1,4 +1,5 @@
require 'test/unit'
require_relative 'envutil'
class TestProc < Test::Unit::TestCase
def setup
@ -1157,4 +1158,14 @@ class TestProc < Test::Unit::TestCase
assert_equal('zot', o.method(:foo).to_proc.() {'zot'}, bug3792)
}
end
def test_overriden_lambda
bug8345 = '[ruby-core:54687] [Bug #8345]'
assert_normal_exit('def lambda; end; method(:puts).to_proc', bug8345)
end
def test_overriden_proc
bug8345 = '[ruby-core:54688] [Bug #8345]'
assert_normal_exit('def proc; end; ->{}.curry', bug8345)
end
end

2
vm.c
View file

@ -2258,6 +2258,8 @@ Init_VM(void)
rb_define_method_id(klass, id_core_hash_merge_ary, m_core_hash_merge_ary, 2);
rb_define_method_id(klass, id_core_hash_merge_ptr, m_core_hash_merge_ptr, -1);
rb_define_method_id(klass, id_core_hash_merge_kwd, m_core_hash_merge_kwd, 2);
rb_define_method(klass, "proc", rb_block_proc, 0);
rb_define_method(klass, "lambda", rb_block_lambda, 0);
rb_obj_freeze(fcore);
rb_gc_register_mark_object(fcore);
rb_mRubyVMFrozenCore = fcore;