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Diffstat (limited to '')
| -rw-r--r-- | build/clang-plugin/tests/TestNonMemMovableStd.cpp | 21 |
1 files changed, 21 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..c821e6db15 --- /dev/null +++ b/build/clang-plugin/tests/TestNonMemMovableStd.cpp @@ -0,0 +1,21 @@ +#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 4 {{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}} +typedef basic_string<char> string; +template<class T, class U> class pair { T mT; U mU; }; // expected-note-re {{std::pair<bool, std::basic_string<char>{{ ?}}>' is a non-memmove()able type because member 'mU' is a non-memmove()able type 'std::basic_string<char>'}} +class arbitrary_name { }; // expected-note {{'std::arbitrary_name' is a non-memmove()able type because it is an stl-provided type not guaranteed to be memmove-able}} +} + +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::arbitrary_name> assumed_bad; // expected-note {{instantiation of 'Mover<std::arbitrary_name>' 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}} |