From 150b50cfcde95f74419ade2811d963224e96fc98 Mon Sep 17 00:00:00 2001 From: George Marques Date: Fri, 24 Feb 2023 15:41:48 -0300 Subject: [PATCH] Make freed object different than null in comparison operators This is so everything is consistent, as a freed object is not equivalent to `null` in general. The booleanization of a freed object still returns `false` to work as an easy check for validity of objects. Similarly, the negation of a freed object returns `true`. Also makes freed objects different from each other (if they are not the same reference). --- core/variant/variant.cpp | 2 +- core/variant/variant_op.h | 32 ++++++++++++++++---------------- 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/core/variant/variant.cpp b/core/variant/variant.cpp index 8a0289898de..0e4f494da96 100644 --- a/core/variant/variant.cpp +++ b/core/variant/variant.cpp @@ -931,7 +931,7 @@ bool Variant::is_zero() const { return *reinterpret_cast(_data._mem) == ::RID(); } case OBJECT: { - return _get_obj().obj == nullptr; + return get_validated_object() == nullptr; } case CALLABLE: { return reinterpret_cast(_data._mem)->is_null(); diff --git a/core/variant/variant_op.h b/core/variant/variant_op.h index fc1f7828a29..dabe40a4323 100644 --- a/core/variant/variant_op.h +++ b/core/variant/variant_op.h @@ -549,14 +549,14 @@ public: class OperatorEvaluatorEqualObject { public: static void evaluate(const Variant &p_left, const Variant &p_right, Variant *r_ret, bool &r_valid) { - const Object *a = p_left.get_validated_object(); - const Object *b = p_right.get_validated_object(); + const ObjectID &a = VariantInternal::get_object_id(&p_left); + const ObjectID &b = VariantInternal::get_object_id(&p_right); *r_ret = a == b; r_valid = true; } static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) { - const Object *a = left->get_validated_object(); - const Object *b = right->get_validated_object(); + const ObjectID &a = VariantInternal::get_object_id(left); + const ObjectID &b = VariantInternal::get_object_id(right); *VariantGetInternalPtr::get_ptr(r_ret) = a == b; } static void ptr_evaluate(const void *left, const void *right, void *r_ret) { @@ -568,12 +568,12 @@ public: class OperatorEvaluatorEqualObjectNil { public: static void evaluate(const Variant &p_left, const Variant &p_right, Variant *r_ret, bool &r_valid) { - const Object *a = p_left.get_validated_object(); + const Object *a = p_left.operator Object *(); *r_ret = a == nullptr; r_valid = true; } static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) { - const Object *a = left->get_validated_object(); + const Object *a = left->operator Object *(); *VariantGetInternalPtr::get_ptr(r_ret) = a == nullptr; } static void ptr_evaluate(const void *left, const void *right, void *r_ret) { @@ -585,12 +585,12 @@ public: class OperatorEvaluatorEqualNilObject { public: static void evaluate(const Variant &p_left, const Variant &p_right, Variant *r_ret, bool &r_valid) { - const Object *b = p_right.get_validated_object(); + const Object *b = p_right.operator Object *(); *r_ret = nullptr == b; r_valid = true; } static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) { - const Object *b = right->get_validated_object(); + const Object *b = right->operator Object *(); *VariantGetInternalPtr::get_ptr(r_ret) = nullptr == b; } static void ptr_evaluate(const void *left, const void *right, void *r_ret) { @@ -620,14 +620,14 @@ public: class OperatorEvaluatorNotEqualObject { public: static void evaluate(const Variant &p_left, const Variant &p_right, Variant *r_ret, bool &r_valid) { - Object *a = p_left.get_validated_object(); - Object *b = p_right.get_validated_object(); + const ObjectID &a = VariantInternal::get_object_id(&p_left); + const ObjectID &b = VariantInternal::get_object_id(&p_right); *r_ret = a != b; r_valid = true; } static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) { - Object *a = left->get_validated_object(); - Object *b = right->get_validated_object(); + const ObjectID &a = VariantInternal::get_object_id(left); + const ObjectID &b = VariantInternal::get_object_id(right); *VariantGetInternalPtr::get_ptr(r_ret) = a != b; } static void ptr_evaluate(const void *left, const void *right, void *r_ret) { @@ -639,12 +639,12 @@ public: class OperatorEvaluatorNotEqualObjectNil { public: static void evaluate(const Variant &p_left, const Variant &p_right, Variant *r_ret, bool &r_valid) { - Object *a = p_left.get_validated_object(); + Object *a = p_left.operator Object *(); *r_ret = a != nullptr; r_valid = true; } static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) { - Object *a = left->get_validated_object(); + Object *a = left->operator Object *(); *VariantGetInternalPtr::get_ptr(r_ret) = a != nullptr; } static void ptr_evaluate(const void *left, const void *right, void *r_ret) { @@ -656,12 +656,12 @@ public: class OperatorEvaluatorNotEqualNilObject { public: static void evaluate(const Variant &p_left, const Variant &p_right, Variant *r_ret, bool &r_valid) { - Object *b = p_right.get_validated_object(); + Object *b = p_right.operator Object *(); *r_ret = nullptr != b; r_valid = true; } static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) { - Object *b = right->get_validated_object(); + Object *b = right->operator Object *(); *VariantGetInternalPtr::get_ptr(r_ret) = nullptr != b; } static void ptr_evaluate(const void *left, const void *right, void *r_ret) {