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* vm_insnhelper.c (vm_defined): check respond_to_missing?

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at defined?(func()).
* test/ruby/test_defined.rb: add a test for this fix.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50738 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2015-06-02 19:49:22 +00:00
parent 5bcae57c6f
commit a54da1c050
3 changed files with 42 additions and 7 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
Wed Jun 3 04:48:05 2015 Koichi Sasada <ko1@atdot.net>
* vm_insnhelper.c (vm_defined): check respond_to_missing?
at defined?(func()).
* test/ruby/test_defined.rb: add a test for this fix.
Wed Jun 3 04:34:39 2015 Koichi Sasada <ko1@atdot.net>
* vm_insnhelper.c (vm_defined): skip respond_to_missing? when

15
test/ruby/test_defined.rb
View File

@ -223,6 +223,14 @@ class TestDefined < Test::Unit::TestCase
def existing_method
end
def func_defined_existing_func
defined?(existing_method())
end
def func_defined_non_existing_func
defined?(non_existing_method())
end
end
def test_method_by_respond_to_missing
@ -232,5 +240,12 @@ class TestDefined < Test::Unit::TestCase
assert_equal(false, obj.called, bug_11211)
assert_equal(nil, defined?(obj.non_existing_method), bug_11211)
assert_equal(true, obj.called, bug_11211)
bug_11212 = '[Bug #11212]'
obj = ExampleRespondToMissing.new
assert_equal("method", obj.func_defined_existing_func, bug_11212)
assert_equal(false, obj.called, bug_11212)
assert_equal(nil, obj.func_defined_non_existing_func, bug_11212)
assert_equal(true, obj.called, bug_11212)
end
end

27
vm_insnhelper.c
View File

@ -2409,6 +2409,22 @@ FUNC_FASTCALL(rb_vm_opt_struct_aset)(rb_thread_t *th, rb_control_frame_t *reg_cf
/* defined insn */
static enum defined_type
check_resopnd_to_missing(VALUE obj, VALUE v)
{
VALUE args[2];
VALUE r;
args[0] = obj; args[1] = Qfalse;
r = rb_check_funcall(v, idRespond_to_missing, 2, args);
if (r != Qundef && RTEST(r)) {
return DEFINED_METHOD;
}
else {
return 0;
}
}
static VALUE
vm_defined(rb_thread_t *th, rb_control_frame_t *reg_cfp, rb_num_t op_type, VALUE obj, VALUE needstr, VALUE v)
{
@ -2449,6 +2465,9 @@ vm_defined(rb_thread_t *th, rb_control_frame_t *reg_cfp, rb_num_t op_type, VALUE
if (rb_method_boundp(klass, SYM2ID(obj), 0)) {
expr_type = DEFINED_METHOD;
}
else {
expr_type = check_resopnd_to_missing(obj, v);
}
break;
case DEFINED_METHOD:{
VALUE klass = CLASS_OF(v);
@ -2462,13 +2481,7 @@ vm_defined(rb_thread_t *th, rb_control_frame_t *reg_cfp, rb_num_t op_type, VALUE
}
}
else {
VALUE args[2];
VALUE r;
args[0] = obj; args[1] = Qfalse;
r = rb_check_funcall(v, idRespond_to_missing, 2, args);
if (r != Qundef && RTEST(r))
expr_type = DEFINED_METHOD;
expr_type = check_resopnd_to_missing(obj, v);
}
break;
}