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* enumerator.c (enumerator_init_copy): prohibit cloning of

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generators since Fibers cannot be copied.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14404 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2007-12-21 05:59:20 +00:00
parent 0d49e43be2
commit 8fa21bc05f
2 changed files with 14 additions and 3 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Fri Dec 21 14:58:27 2007 Yukihiro Matsumoto <matz@ruby-lang.org>
* enumerator.c (enumerator_init_copy): prohibit cloning of
generators since Fibers cannot be copied.
Fri Dec 21 14:46:07 2007 Tanaka Akira <akr@fsij.org>
* io.c (Init_IO): define IO::BINARY even if O_BINARY is not exist.

12
enumerator.c
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@ -285,14 +285,20 @@ enumerator_initialize(int argc, VALUE *argv, VALUE obj)
static VALUE
enumerator_init_copy(VALUE obj, VALUE orig)
{
struct enumerator *ptr0 = enumerator_ptr(orig);
struct enumerator *ptr1 = enumerator_ptr(obj);
struct enumerator *ptr0, *ptr1;
ptr0 = enumerator_ptr(orig);
if (ptr1->fib) {
/* Fibers cannot be copied */
rb_raise(rb_eTypeError, "can't copy execution context");
}
ptr1 = enumerator_ptr(obj);
ptr1->method = ptr0->method;
ptr1->proc = ptr0->proc;
ptr1->iter = ptr0->iter;
ptr1->args = ptr0->args;
ptr1->fib = ptr0->fib;
ptr1->fib = 0;
return obj;
}