| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | |
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| 3 | // Test the use of elaborated-type-specifiers to inject the names of |
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| 4 | // structs (or classes or unions) into an outer scope as described in |
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| 5 | // C++ [basic.scope.pdecl]p5. |
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| 6 | typedef struct S1 { |
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| 7 | union { |
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| 8 | struct S2 *x; |
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| 9 | struct S3 *y; |
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| 10 | }; |
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| 11 | } S1; |
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| 12 | |
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| 13 | bool test_elab(S1 *s1, struct S2 *s2, struct S3 *s3) { |
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| 14 | if (s1->x == s2) return true; |
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| 15 | if (s1->y == s3) return true; |
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| 16 | return false; |
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| 17 | } |
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| 18 | |
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| 19 | namespace NS { |
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| 20 | class X { |
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| 21 | public: |
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| 22 | void test_elab2(struct S4 *s4); // expected-note{{'NS::S4' declared here}} |
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| 23 | }; |
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| 24 | |
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| 25 | void X::test_elab2(S4 *s4) { } // expected-note{{passing argument to parameter 's4' here}} |
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| 26 | } |
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| 27 | |
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| 28 | void test_X_elab(NS::X x) { |
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| 29 | struct S4 *s4 = 0; |
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| 30 | x.test_elab2(s4); // expected-error{{cannot initialize a parameter of type 'NS::S4 *' with an lvalue of type 'struct S4 *'}} |
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| 31 | } |
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| 32 | |
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| 33 | namespace NS { |
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| 34 | S4 *get_S4(); |
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| 35 | } |
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| 36 | |
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| 37 | void test_S5_scope() { |
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| 38 | S4 *s4; // expected-error{{unknown type name 'S4'; did you mean 'NS::S4'?}} |
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| 39 | } |
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| 40 | |
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| 41 | int test_funcparam_scope(struct S5 * s5) { |
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| 42 | struct S5 { int y; } *s5_2 = 0; |
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| 43 | if (s5 == s5_2) return 1; // expected-error {{comparison of distinct pointer types ('struct S5 *' and 'struct S5 *')}} |
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| 44 | return 0; |
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| 45 | } |
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| 46 | |
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| 47 | namespace test5 { |
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| 48 | struct A { |
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| 49 | class __attribute__((visibility("hidden"))) B {}; |
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| 50 | |
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| 51 | void test(class __attribute__((visibility("hidden"), noreturn)) B b) { // expected-warning {{'noreturn' attribute only applies to functions and methods}} |
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| 52 | } |
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| 53 | }; |
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| 54 | } |
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| 55 | |
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| 56 | namespace test6 { |
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| 57 | struct C { |
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| 58 | template <typename> friend struct A; // expected-note {{'A' declared here}} |
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| 59 | }; |
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| 60 | struct B { |
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| 61 | struct A *p; // expected-error {{implicit declaration introduced by elaborated type conflicts with a template of the same name}} |
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| 62 | }; |
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| 63 | } |
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| 64 | |
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