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Diffstat (limited to '')
| -rw-r--r-- | build/clang-plugin/tests/TestNonMemMovableStd.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestNonMemMovableStd.cpp b/build/clang-plugin/tests/TestNonMemMovableStd.cpp new file mode 100644 index 0000000000..b380d07186 --- /dev/null +++ b/build/clang-plugin/tests/TestNonMemMovableStd.cpp @@ -0,0 +1,70 @@ +#define MOZ_NEEDS_MEMMOVABLE_TYPE __attribute__((annotate("moz_needs_memmovable_type"))) + +template<class T> +class MOZ_NEEDS_MEMMOVABLE_TYPE Mover { T mForceInst; }; // expected-error-re 9 {{Cannot instantiate 'Mover<{{.*}}>' with non-memmovable template argument '{{.*}}'}} + +namespace std { +// In theory defining things in std:: like this invokes undefined +// behavior, but in practice it's good enough for this test case. +template<class C> class basic_string { // expected-note 2 {{'std::basic_string<char>' is a non-memmove()able type because it is an stl-provided type not guaranteed to be memmove-able}} expected-note {{'std::string' (aka 'basic_string<char>') is a non-memmove()able type because it is an stl-provided type not guaranteed to be memmove-able}} + public: + basic_string(); + basic_string(const basic_string&); + basic_string(basic_string&&); + basic_string& operator=(const basic_string&); + basic_string& operator=(basic_string&&); + ~basic_string(); +}; +typedef basic_string<char> string; +template<class T, class U> class pair { T mT; U mU; }; // expected-note-re 4 {{'std::pair<bool, {{.*}}>' is a non-memmove()able type because it has a template argument non-memmove()able type '{{.*}}'}} + +struct has_nontrivial_dtor { // expected-note 2 {{'std::has_nontrivial_dtor' is a non-memmove()able type because it is an stl-provided type not guaranteed to be memmove-able}} + has_nontrivial_dtor() = default; + ~has_nontrivial_dtor(); +}; +struct has_nontrivial_copy { // expected-note 2 {{'std::has_nontrivial_copy' is a non-memmove()able type because it is an stl-provided type not guaranteed to be memmove-able}} + has_nontrivial_copy() = default; + has_nontrivial_copy(const has_nontrivial_copy&); + has_nontrivial_copy& operator=(const has_nontrivial_copy&); +}; +struct has_nontrivial_move { // expected-note 2 {{'std::has_nontrivial_move' is a non-memmove()able type because it is an stl-provided type not guaranteed to be memmove-able}} + has_nontrivial_move() = default; + has_nontrivial_move(const has_nontrivial_move&); + has_nontrivial_move& operator=(const has_nontrivial_move&); +}; +struct has_trivial_dtor { + has_trivial_dtor() = default; + ~has_trivial_dtor() = default; +}; +struct has_trivial_copy { + has_trivial_copy() = default; + has_trivial_copy(const has_trivial_copy&) = default; + has_trivial_copy& operator=(const has_trivial_copy&) = default; +}; +struct has_trivial_move { + has_trivial_move() = default; + has_trivial_move(const has_trivial_move&) = default; + has_trivial_move& operator=(const has_trivial_move&) = default; +}; +} + +class HasString { std::string m; }; // expected-note {{'HasString' is a non-memmove()able type because member 'm' is a non-memmove()able type 'std::string' (aka 'basic_string<char>')}} + +static Mover<std::string> bad; // expected-note-re {{instantiation of 'Mover<std::basic_string<char>{{ ?}}>' requested here}} +static Mover<HasString> bad_mem; // expected-note {{instantiation of 'Mover<HasString>' requested here}} +static Mover<std::pair<bool, int>> good; +static Mover<std::pair<bool, std::string>> not_good; // expected-note-re {{instantiation of 'Mover<std::pair<bool, std::basic_string<char>{{ ?}}>{{ ?}}>' requested here}} + +static Mover<std::has_nontrivial_dtor> nontrivial_dtor; // expected-note {{instantiation of 'Mover<std::has_nontrivial_dtor>' requested here}} +static Mover<std::has_nontrivial_copy> nontrivial_copy; // expected-note {{instantiation of 'Mover<std::has_nontrivial_copy>' requested here}} +static Mover<std::has_nontrivial_move> nontrivial_move; // expected-note {{instantiation of 'Mover<std::has_nontrivial_move>' requested here}} +static Mover<std::has_trivial_dtor> trivial_dtor; +static Mover<std::has_trivial_copy> trivial_copy; +static Mover<std::has_trivial_move> trivial_move; + +static Mover<std::pair<bool, std::has_nontrivial_dtor>> pair_nontrivial_dtor; // expected-note {{instantiation of 'Mover<std::pair<bool, std::has_nontrivial_dtor>>' requested here}} +static Mover<std::pair<bool, std::has_nontrivial_copy>> pair_nontrivial_copy; // expected-note {{instantiation of 'Mover<std::pair<bool, std::has_nontrivial_copy>>' requested here}} +static Mover<std::pair<bool, std::has_nontrivial_move>> pair_nontrivial_move; // expected-note {{instantiation of 'Mover<std::pair<bool, std::has_nontrivial_move>>' requested here}} +static Mover<std::pair<bool, std::has_trivial_dtor>> pair_trivial_dtor; +static Mover<std::pair<bool, std::has_trivial_copy>> pair_trivial_copy; +static Mover<std::pair<bool, std::has_trivial_move>> pair_trivial_move; |