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NARUSE, Yui authored
Fix frozen status loss when moving objects [Bug #19536] When objects are moved between size pools, their frozen status is lost in the shape. This will cause the frozen check to be bypassed when there is an inline cache. For example, the following script should raise a FrozenError, but doesn't on Ruby 3.2 and master. class A def add_ivars @a = @b = @c = @d = 1 end def set_a @a = 10 end end a = A.new a.add_ivars a.freeze b = A.new b.add_ivars b.set_a # Set the inline cache in set_a GC.verify_compaction_references(expand_heap: true, toward: :empty) a.set_a --- shape.c | 2 +- test/ruby/test_gc_compact.rb | 28 ++++++++++++++++++++++++++++ 2 files changed, 29 insertions(+), 1 deletion(-)
NARUSE, Yui authoredFix frozen status loss when moving objects [Bug #19536] When objects are moved between size pools, their frozen status is lost in the shape. This will cause the frozen check to be bypassed when there is an inline cache. For example, the following script should raise a FrozenError, but doesn't on Ruby 3.2 and master. class A def add_ivars @a = @b = @c = @d = 1 end def set_a @a = 10 end end a = A.new a.add_ivars a.freeze b = A.new b.add_ivars b.set_a # Set the inline cache in set_a GC.verify_compaction_references(expand_heap: true, toward: :empty) a.set_a --- shape.c | 2 +- test/ruby/test_gc_compact.rb | 28 ++++++++++++++++++++++++++++ 2 files changed, 29 insertions(+), 1 deletion(-)
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