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merge revision(s) ed6fbb79e1: [Backport #19339]

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Fix crash when defining ivars on special constants

	[Bug #19339]
	---
	 test/ruby/test_variable.rb | 6 ++++++
	 vm_insnhelper.c            | 5 +++++
	 2 files changed, 11 insertions(+)
This commit is contained in:
NARUSE, Yui 2023-01-20 17:01:47 +09:00
parent 373e62248c
commit c0df0a85de
3 changed files with 12 additions and 1 deletions
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6
test/ruby/test_variable.rb
View file

@ -261,6 +261,12 @@ class TestVariable < Test::Unit::TestCase
v.instance_variable_set(:@foo, :bar)
end
assert_raise_with_message(FrozenError, msg, "[Bug #19339]") do
v.instance_eval do
@a = 1
end
end
assert_nil EnvUtil.suppress_warning {v.instance_variable_get(:@foo)}
assert_not_send([v, :instance_variable_defined?, :@foo])

2
version.h
View file

@ -11,7 +11,7 @@
# define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
#define RUBY_VERSION_TEENY 0
#define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
#define RUBY_PATCHLEVEL 16
#define RUBY_PATCHLEVEL 17
#include "ruby/version.h"
#include "ruby/internal/abi.h"

5
vm_insnhelper.c
View file

@ -1562,6 +1562,11 @@ vm_getinstancevariable(const rb_iseq_t *iseq, VALUE obj, ID id, IVC ic)
static inline void
vm_setinstancevariable(const rb_iseq_t *iseq, VALUE obj, ID id, VALUE val, IVC ic)
{
if (RB_SPECIAL_CONST_P(obj)) {
rb_error_frozen_object(obj);
return;
}
shape_id_t dest_shape_id;
attr_index_t index;
vm_ic_atomic_shape_and_index(ic, &dest_shape_id, &index);