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* vm_insnhelper.c (vm_invoke_block): returning from lambda proc

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now always exits from the Proc. [ruby-core:56193] [Feature #8693]

* NEWS, test/ruby/test_lambda.rb: ditto. Patch by nobu.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42455 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ktsj 2013-08-09 01:49:38 +00:00
parent 4a7afb71ec
commit 214cbdc943
4 changed files with 37 additions and 2 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
Fri Aug 9 10:42:11 2013 Kazuki Tsujimoto <kazuki@callcc.net>
* vm_insnhelper.c (vm_invoke_block): returning from lambda proc
now always exits from the Proc. [ruby-core:56193] [Feature #8693]
* NEWS, test/ruby/test_lambda.rb: ditto. Patch by nobu.
Fri Aug 9 00:10:32 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* enumerator.c (lazy_zip_func): fix non-single argument. fix

5
NEWS
View file

@ -97,6 +97,11 @@ with all sufficient information, see the ChangeLog file.
* Raises TypeError instead of ArgumentError if the receiver doesn't have
to_r method.
* Proc
* Returning from lambda proc now always exits from the Proc, not from the
method where the lambda is created. Returing from non-lambda proc exits
from the method, same as the former behavior.
=== Stdlib updates (outstanding ones only)
* Digest

20
test/ruby/test_lambda.rb
View file

@ -89,4 +89,24 @@ class TestLambdaParameters < Test::Unit::TestCase
assert_send([e.backtrace.first, :start_with?, "#{__FILE__}:#{line}:"], bug6151)
assert_equal(0, called)
end
def return_in_current(val)
1.tap &->(*) {return 0}
val
end
def yield_block
yield
end
def return_in_callee(val)
yield_block &->(*) {return 0}
val
end
def test_return
feature8693 = '[ruby-core:56193] [Feature #8693]'
assert_equal(42, return_in_current(42), feature8693)
assert_equal(42, return_in_callee(42), feature8693)
end
end

7
vm_insnhelper.c
View file

@ -2328,12 +2328,15 @@ vm_invoke_block(rb_thread_t *th, rb_control_frame_t *reg_cfp, rb_call_info_t *ci
if (BUILTIN_TYPE(iseq) != T_NODE) {
int opt_pc;
const int arg_size = iseq->arg_size;
int is_lambda = block_proc_is_lambda(block->proc);
VALUE * const rsp = GET_SP() - ci->argc;
SET_SP(rsp);
opt_pc = vm_yield_setup_args(th, iseq, ci->argc, rsp, 0, block_proc_is_lambda(block->proc));
opt_pc = vm_yield_setup_args(th, iseq, ci->argc, rsp, 0, is_lambda);
vm_push_frame(th, iseq, VM_FRAME_MAGIC_BLOCK, block->self,
vm_push_frame(th, iseq,
is_lambda ? VM_FRAME_MAGIC_LAMBDA : VM_FRAME_MAGIC_BLOCK,
block->self,
block->klass,
VM_ENVVAL_PREV_EP_PTR(block->ep),
iseq->iseq_encoded + opt_pc,