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-rw-r--r--test/ruby/test_proc.rb20
-rw-r--r--vm_args.c3
2 files changed, 22 insertions, 1 deletions
diff --git a/test/ruby/test_proc.rb b/test/ruby/test_proc.rb
index c6572ec1ba..3f0d599a04 100644
--- a/test/ruby/test_proc.rb
+++ b/test/ruby/test_proc.rb
@@ -1087,6 +1087,26 @@ class TestProc < Test::Unit::TestCase
assert_equal([1,2,[3],4,5], r, "[ruby-core:19485]")
end
+ def test_proc_autosplat
+ def self.a(arg, kw)
+ yield arg
+ yield arg, **kw
+ yield arg, kw
+ end
+
+ arr = []
+ a([1,2,3], {}) do |arg1, arg2=0|
+ arr << [arg1, arg2]
+ end
+ assert_equal([[1, 2], [[1, 2, 3], 0], [[1, 2, 3], {}]], arr)
+
+ arr = []
+ a([1,2,3], a: 1) do |arg1, arg2=0|
+ arr << [arg1, arg2]
+ end
+ assert_equal([[1, 2], [[1, 2, 3], {a: 1}], [[1, 2, 3], {a: 1}]], arr)
+ end
+
def test_parameters
assert_equal([], proc {}.parameters)
assert_equal([], proc {||}.parameters)
diff --git a/vm_args.c b/vm_args.c
index 1efb84a0a3..cf0328d4b7 100644
--- a/vm_args.c
+++ b/vm_args.c
@@ -725,10 +725,10 @@ setup_parameters_complex(rb_execution_context_t * const ec, const rb_iseq_t * co
{
const int min_argc = iseq->body->param.lead_num + iseq->body->param.post_num;
const int max_argc = (iseq->body->param.flags.has_rest == FALSE) ? min_argc + iseq->body->param.opt_num : UNLIMITED_ARGUMENTS;
- int opt_pc = 0;
int given_argc;
int kw_splat = FALSE;
unsigned int kw_flag = ci->flag & (VM_CALL_KWARG | VM_CALL_KW_SPLAT);
+ int opt_pc = 0, allow_autosplat = !kw_flag;
struct args_info args_body, *args;
VALUE keyword_hash = Qnil;
VALUE * const orig_sp = ec->cfp->sp;
@@ -879,6 +879,7 @@ setup_parameters_complex(rb_execution_context_t * const ec, const rb_iseq_t * co
break; /* do nothing special */
case arg_setup_block:
if (given_argc == 1 &&
+ allow_autosplat &&
(min_argc > 0 || iseq->body->param.opt_num > 1 ||
iseq->body->param.flags.has_kw || iseq->body->param.flags.has_kwrest) &&
!iseq->body->param.flags.ambiguous_param0 &&