зеркало из https://github.com/mozilla/gecko-dev.git
71 строка
4.4 KiB
C++
71 строка
4.4 KiB
C++
#define MOZ_NEEDS_MEMMOVABLE_TYPE __attribute__((annotate("moz_needs_memmovable_type")))
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template<class T>
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class MOZ_NEEDS_MEMMOVABLE_TYPE Mover { T mForceInst; }; // expected-error-re 9 {{Cannot instantiate 'Mover<{{.*}}>' with non-memmovable template argument '{{.*}}'}}
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namespace std {
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// In theory defining things in std:: like this invokes undefined
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// behavior, but in practice it's good enough for this test case.
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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}}
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public:
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basic_string();
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basic_string(const basic_string&);
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basic_string(basic_string&&);
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basic_string& operator=(const basic_string&);
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basic_string& operator=(basic_string&&);
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~basic_string();
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};
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typedef basic_string<char> string;
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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 '{{.*}}'}}
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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}}
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has_nontrivial_dtor() = default;
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~has_nontrivial_dtor();
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};
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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}}
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has_nontrivial_copy() = default;
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has_nontrivial_copy(const has_nontrivial_copy&);
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has_nontrivial_copy& operator=(const has_nontrivial_copy&);
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};
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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}}
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has_nontrivial_move() = default;
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has_nontrivial_move(const has_nontrivial_move&);
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has_nontrivial_move& operator=(const has_nontrivial_move&);
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};
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struct has_trivial_dtor {
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has_trivial_dtor() = default;
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~has_trivial_dtor() = default;
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};
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struct has_trivial_copy {
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has_trivial_copy() = default;
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has_trivial_copy(const has_trivial_copy&) = default;
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has_trivial_copy& operator=(const has_trivial_copy&) = default;
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};
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struct has_trivial_move {
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has_trivial_move() = default;
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has_trivial_move(const has_trivial_move&) = default;
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has_trivial_move& operator=(const has_trivial_move&) = default;
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};
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}
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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>')}}
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static Mover<std::string> bad; // expected-note-re {{instantiation of 'Mover<std::basic_string<char>{{ ?}}>' requested here}}
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static Mover<HasString> bad_mem; // expected-note {{instantiation of 'Mover<HasString>' requested here}}
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static Mover<std::pair<bool, int>> good;
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static Mover<std::pair<bool, std::string>> not_good; // expected-note-re {{instantiation of 'Mover<std::pair<bool, std::basic_string<char>{{ ?}}>{{ ?}}>' requested here}}
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static Mover<std::has_nontrivial_dtor> nontrivial_dtor; // expected-note {{instantiation of 'Mover<std::has_nontrivial_dtor>' requested here}}
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static Mover<std::has_nontrivial_copy> nontrivial_copy; // expected-note {{instantiation of 'Mover<std::has_nontrivial_copy>' requested here}}
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static Mover<std::has_nontrivial_move> nontrivial_move; // expected-note {{instantiation of 'Mover<std::has_nontrivial_move>' requested here}}
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static Mover<std::has_trivial_dtor> trivial_dtor;
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static Mover<std::has_trivial_copy> trivial_copy;
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static Mover<std::has_trivial_move> trivial_move;
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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}}
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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}}
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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}}
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static Mover<std::pair<bool, std::has_trivial_dtor>> pair_trivial_dtor;
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static Mover<std::pair<bool, std::has_trivial_copy>> pair_trivial_copy;
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static Mover<std::pair<bool, std::has_trivial_move>> pair_trivial_move;
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