llvm-project/clang/test/Frontend/backend-attribute-error-war...

62 lines
2.7 KiB
C

// RUN: %clang_cc1 -verify=expected,enabled -emit-codegen-only %s
// RUN: %clang_cc1 -verify=expected,enabled -emit-codegen-only %s -x c++
// RUN: %clang_cc1 -verify -emit-codegen-only -Wno-attribute-warning %s
// RUN: %clang_cc1 -verify -emit-codegen-only -Wno-attribute-warning %s -x c++
__attribute__((error("oh no foo"))) void foo(void);
__attribute__((error("oh no bar"))) void bar(void);
int x(void) {
return 8 % 2 == 1;
}
__attribute__((warning("oh no quux"))) void quux(void);
__attribute__((error("demangle me"))) void __compiletime_assert_455(void);
__attribute__((error("one"), error("two"))) // expected-warning {{attribute 'error' is already applied with different arguments}}
void // expected-note@-1 {{previous attribute is here}}
duplicate_errors(void);
__attribute__((warning("one"), warning("two"))) // expected-warning {{attribute 'warning' is already applied with different arguments}}
void // expected-note@-1 {{previous attribute is here}}
duplicate_warnings(void);
void baz(void) {
foo(); // expected-error {{call to 'foo' declared with 'error' attribute: oh no foo}}
if (x())
bar(); // expected-error {{call to 'bar' declared with 'error' attribute: oh no bar}}
quux(); // enabled-warning {{call to 'quux' declared with 'warning' attribute: oh no quux}}
__compiletime_assert_455(); // expected-error {{call to '__compiletime_assert_455' declared with 'error' attribute: demangle me}}
duplicate_errors(); // expected-error {{call to 'duplicate_errors' declared with 'error' attribute: two}}
duplicate_warnings(); // enabled-warning {{call to 'duplicate_warnings' declared with 'warning' attribute: two}}
}
#ifdef __cplusplus
template <typename T>
__attribute__((error("demangle me, too")))
T
nocall(T t);
struct Widget {
__attribute__((warning("don't call me!")))
operator int() { return 42; }
};
void baz_cpp(void) {
foo(); // expected-error {{call to 'foo' declared with 'error' attribute: oh no foo}}
if (x())
bar(); // expected-error {{call to 'bar' declared with 'error' attribute: oh no bar}}
quux(); // enabled-warning {{call to 'quux' declared with 'warning' attribute: oh no quux}}
// Test that we demangle correctly in the diagnostic for C++.
__compiletime_assert_455(); // expected-error {{call to '__compiletime_assert_455' declared with 'error' attribute: demangle me}}
nocall<int>(42); // expected-error {{call to 'nocall<int>' declared with 'error' attribute: demangle me, too}}
Widget W;
int w = W; // enabled-warning {{'operator int' declared with 'warning' attribute: don't call me!}}
}
#endif