forked from OSchip/llvm-project
124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=gnu2x -verify %s
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enum [[]] E {
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One [[]],
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Two,
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Three [[]]
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};
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enum [[]] { Four };
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[[]] enum E2 { Five }; // expected-error {{misplaced attributes}}
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// FIXME: this diagnostic can be improved.
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enum { [[]] Six }; // expected-error {{expected identifier}}
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// FIXME: this diagnostic can be improved.
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enum E3 [[]] { Seven }; // expected-error {{expected identifier or '('}}
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struct [[]] S1 {
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int i [[]];
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int [[]] j;
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int k[10] [[]];
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int l[[]][10];
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[[]] int m, n;
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int o [[]] : 12;
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};
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[[]] struct S2 { int a; }; // expected-error {{misplaced attributes}}
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struct S3 [[]] { int a; }; // expected-error {{an attribute list cannot appear here}}
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union [[]] U {
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double d [[]];
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[[]] int i;
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};
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[[]] union U2 { double d; }; // expected-error {{misplaced attributes}}
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union U3 [[]] { double d; }; // expected-error {{an attribute list cannot appear here}}
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struct [[]] IncompleteStruct;
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union [[]] IncompleteUnion;
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enum [[]] IncompleteEnum;
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enum __attribute__((deprecated)) IncompleteEnum2;
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[[]] void f1(void);
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void [[]] f2(void);
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void f3 [[]] (void);
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void f4(void) [[]];
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void f5(int i [[]], [[]] int j, int [[]] k);
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void f6(a, b) [[]] int a; int b; { // expected-error {{an attribute list cannot appear here}}
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}
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// FIXME: technically, an attribute list cannot appear here, but we currently
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// parse it as part of the return type of the function, which is reasonable
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// behavior given that we *don't* want to parse it as part of the K&R parameter
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// declarations. It is disallowed to avoid a parsing ambiguity we already
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// handle well.
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int (*f7(a, b))(int, int) [[]] int a; int b; {
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return 0;
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}
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[[]] int a, b;
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int c [[]], d [[]];
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void f8(void) [[]] {
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[[]] int i, j;
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int k, l [[]];
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}
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[[]] void f9(void) {
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int i[10] [[]];
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int (*fp1)(void)[[]];
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int (*fp2 [[]])(void);
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int * [[]] *ipp;
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}
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void f10(int j[static 10] [[]], int k[*] [[]]);
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void f11(void) {
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[[]] {}
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[[]] if (1) {}
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[[]] switch (1) {
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[[]] case 1: [[]] break;
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[[]] default: break;
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}
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goto foo;
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[[]] foo: (void)1;
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[[]] for (;;);
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[[]] while (1);
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[[]] do [[]] { } while(1);
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[[]] (void)1;
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[[]];
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(void)sizeof(int [4][[]]);
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(void)sizeof(struct [[]] S3 { int a [[]]; });
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[[]] return;
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}
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[[attr]] void f12(void); // expected-warning {{unknown attribute 'attr' ignored}}
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[[vendor::attr]] void f13(void); // expected-warning {{unknown attribute 'attr' ignored}}
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// Ensure that asm statements properly handle double colons.
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void test_asm(void) {
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asm("ret" :::);
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asm("foo" :: "r" (xx)); // expected-error {{use of undeclared identifier 'xx'}}
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}
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// Do not allow 'using' to introduce vendor attribute namespaces.
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[[using vendor: attr1, attr2]] void f14(void); // expected-error {{expected ']'}} \
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// expected-warning {{unknown attribute 'vendor' ignored}} \
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// expected-warning {{unknown attribute 'using' ignored}}
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struct [[]] S4 *s; // expected-error {{an attribute list cannot appear here}}
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struct S5 {};
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int c = sizeof(struct [[]] S5); // expected-error {{an attribute list cannot appear here}}
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