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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /build/clang-plugin/tests/TestKungFuDeathGrip.cpp | |
parent | Initial commit. (diff) | |
download | firefox-upstream.tar.xz firefox-upstream.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'build/clang-plugin/tests/TestKungFuDeathGrip.cpp')
-rw-r--r-- | build/clang-plugin/tests/TestKungFuDeathGrip.cpp | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestKungFuDeathGrip.cpp b/build/clang-plugin/tests/TestKungFuDeathGrip.cpp new file mode 100644 index 0000000000..0218015807 --- /dev/null +++ b/build/clang-plugin/tests/TestKungFuDeathGrip.cpp @@ -0,0 +1,142 @@ +#include <utility> + +#define MOZ_IMPLICIT __attribute__((annotate("moz_implicit"))) + +template <typename T> +class already_AddRefed { +public: + already_AddRefed(); + T* mPtr; +}; + +template <typename T> +class RefPtr { +public: + RefPtr(); + MOZ_IMPLICIT RefPtr(T* aIn); + MOZ_IMPLICIT RefPtr(already_AddRefed<T> aIn); + + RefPtr(const RefPtr<T>& aOther) = default; + RefPtr& operator=(const RefPtr<T>&) = default; + + // We must define non-defaulted move operations as in the real RefPtr to make + // the type non-trivially-copyable. + RefPtr(RefPtr<T>&&); + RefPtr& operator=(RefPtr<T>&&); + + void swap(RefPtr<T>& aOther); + + ~RefPtr(); + T* mPtr; +}; + +template <typename T> +class nsCOMPtr { +public: + nsCOMPtr(); + MOZ_IMPLICIT nsCOMPtr(T* aIn); + MOZ_IMPLICIT nsCOMPtr(already_AddRefed<T> aIn); + ~nsCOMPtr(); + T* mPtr; +}; + +class Type { +public: + static nsCOMPtr<Type> someStaticCOMPtr; + + void f(nsCOMPtr<Type> ignoredArgument, Type *param) { + nsCOMPtr<Type> never_referenced; + nsCOMPtr<Type> kfdg_t1(this); + nsCOMPtr<Type> kfdg_t2 = this; + nsCOMPtr<Type> kfdg_t3 = (this); + + nsCOMPtr<Type> kfdg_m1(p); // expected-error {{Unused "kungFuDeathGrip" 'nsCOMPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m1', or explicitly pass 'kfdg_m1' to `mozilla::Unused`}} + nsCOMPtr<Type> kfdg_m2 = p; // expected-error {{Unused "kungFuDeathGrip" 'nsCOMPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m2', or explicitly pass 'kfdg_m2' to `mozilla::Unused`}} + nsCOMPtr<Type> kfdg_m3(p); + kfdg_m3.mPtr->f(nullptr, nullptr); + nsCOMPtr<Type> kfdg_m4 = p; + kfdg_m4.mPtr->f(nullptr, nullptr); + + nsCOMPtr<Type> kfdg_a1((already_AddRefed<Type>())); + nsCOMPtr<Type> kfdg_a2 = already_AddRefed<Type>(); + + nsCOMPtr<Type> kfdg_p1(param); + nsCOMPtr<Type> kfdg_p2 = param; + + + RefPtr<Type> never_referenced2; + RefPtr<Type> kfdg_t4(this); + RefPtr<Type> kfdg_t5 = this; + RefPtr<Type> kfdg_t6 = (this); + + RefPtr<Type> kfdg_m5(p); // expected-error {{Unused "kungFuDeathGrip" 'RefPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m5', or explicitly pass 'kfdg_m5' to `mozilla::Unused`}} + RefPtr<Type> kfdg_m6 = p; // expected-error {{Unused "kungFuDeathGrip" 'RefPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m6', or explicitly pass 'kfdg_m6' to `mozilla::Unused`}} + RefPtr<Type> kfdg_m7(p); + kfdg_m7.mPtr->f(nullptr, nullptr); + RefPtr<Type> kfdg_m8 = p; + kfdg_m8.mPtr->f(nullptr, nullptr); + + RefPtr<Type> kfdg_a3((already_AddRefed<Type>())); + RefPtr<Type> kfdg_a4 = already_AddRefed<Type>(); + + RefPtr<Type> kfdg_p3(param); + RefPtr<Type> kfdg_p4 = param; + } + + Type *p; +}; + +struct Type2 { + void f() { + mWeakRef->f(nullptr, nullptr); + } + + void g() { + RefPtr<Type> kfdg; + kfdg.swap(mStrongRef); + f(); + } + + void h() { + RefPtr<Type> kfdg = std::move(mStrongRef); + f(); + } + + RefPtr<Type> mStrongRef; + Type* mWeakRef; +}; + +void f(nsCOMPtr<Type> ignoredArgument, Type *param) { + nsCOMPtr<Type> never_referenced; + Type t; + // Type *p = nullptr; + nsCOMPtr<Type> kfdg_m1(t.p); // expected-error {{Unused "kungFuDeathGrip" 'nsCOMPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m1', or explicitly pass 'kfdg_m1' to `mozilla::Unused`}} + nsCOMPtr<Type> kfdg_m2 = t.p; // expected-error {{Unused "kungFuDeathGrip" 'nsCOMPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m2', or explicitly pass 'kfdg_m2' to `mozilla::Unused`}} + nsCOMPtr<Type> kfdg_m3(t.p); + kfdg_m3.mPtr->f(nullptr, nullptr); + nsCOMPtr<Type> kfdg_m4 = t.p; + kfdg_m4.mPtr->f(nullptr, nullptr); + + nsCOMPtr<Type> kfdg_a1((already_AddRefed<Type>())); + nsCOMPtr<Type> kfdg_a2 = already_AddRefed<Type>(); + + nsCOMPtr<Type> kfdg_p1(param); + nsCOMPtr<Type> kfdg_p2 = param; + + + RefPtr<Type> never_referenced2; + RefPtr<Type> kfdg_m5(t.p); // expected-error {{Unused "kungFuDeathGrip" 'RefPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m5', or explicitly pass 'kfdg_m5' to `mozilla::Unused`}} + RefPtr<Type> kfdg_m6 = t.p; // expected-error {{Unused "kungFuDeathGrip" 'RefPtr<Type>' objects constructed from members are prohibited}} expected-note {{Please switch all accesses to this member to go through 'kfdg_m6', or explicitly pass 'kfdg_m6' to `mozilla::Unused`}} + RefPtr<Type> kfdg_m7(t.p); + kfdg_m7.mPtr->f(nullptr, nullptr); + RefPtr<Type> kfdg_m8 = t.p; + kfdg_m8.mPtr->f(nullptr, nullptr); + + RefPtr<Type> kfdg_a3((already_AddRefed<Type>())); + RefPtr<Type> kfdg_a4 = already_AddRefed<Type>(); + + RefPtr<Type> kfdg_p3(param); + RefPtr<Type> kfdg_p4 = param; +} + +nsCOMPtr<Type> Type::someStaticCOMPtr(nullptr); |