| 1 | // RUN: %clang_cc1 -fsyntax-only -std=c++03 -verify -ast-dump %s > %t-03
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| 2 | // RUN: FileCheck --input-file=%t-03 %s
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| 3 | // RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify -ast-dump %s > %t-11
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| 4 | // RUN: FileCheck --input-file=%t-11 %s
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| 5 | // RUN: FileCheck --input-file=%t-11 %s --check-prefix=CHECK-CXX11
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| 6 |
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| 7 | // http://llvm.org/PR7905
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| 8 | namespace PR7905 {
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| 9 | struct S; // expected-note {{forward declaration}}
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| 10 | void foo1() {
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| 11 | (void)(S[]) {{3}}; // expected-error {{array has incomplete element type}}
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| 12 | }
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| 13 |
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| 14 | template <typename T> struct M { T m; };
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| 15 | void foo2() {
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| 16 | (void)(M<short> []) {{3}};
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| 17 | }
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| 18 | }
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| 19 |
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| 20 | // Check compound literals mixed with C++11 list-initialization.
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| 21 | namespace brace_initializers {
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| 22 | struct POD {
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| 23 | int x, y;
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| 24 | };
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| 25 | struct HasCtor {
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| 26 | HasCtor(int x, int y);
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| 27 | };
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| 28 | struct HasDtor {
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| 29 | int x, y;
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| 30 | ~HasDtor();
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| 31 | };
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| 32 | struct HasCtorDtor {
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| 33 | HasCtorDtor(int x, int y);
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| 34 | ~HasCtorDtor();
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| 35 | };
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| 36 |
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| 37 | POD p = (POD){1, 2};
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| 38 | // CHECK-NOT: CXXBindTemporaryExpr {{.*}} 'brace_initializers::POD'
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| 39 | // CHECK: CompoundLiteralExpr {{.*}} 'brace_initializers::POD'
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| 40 | // CHECK-NEXT: InitListExpr {{.*}} 'brace_initializers::POD'
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| 41 | // CHECK-NEXT: ConstantExpr {{.*}}
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| 42 | // CHECK-NEXT: IntegerLiteral {{.*}} 1{{$}}
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| 43 | // CHECK-NEXT: ConstantExpr {{.*}}
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| 44 | // CHECK-NEXT: IntegerLiteral {{.*}} 2{{$}}
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| 45 |
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| 46 | void test() {
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| 47 | (void)(POD){1, 2};
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| 48 | // CHECK-NOT: CXXBindTemporaryExpr {{.*}} 'brace_initializers::POD'
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| 49 | // CHECK-NOT: ConstantExpr {{.*}} 'brace_initializers::POD'
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| 50 | // CHECK: CompoundLiteralExpr {{.*}} 'brace_initializers::POD'
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| 51 | // CHECK-NEXT: InitListExpr {{.*}} 'brace_initializers::POD'
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| 52 | // CHECK-NEXT: IntegerLiteral {{.*}} 1{{$}}
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| 53 | // CHECK-NEXT: IntegerLiteral {{.*}} 2{{$}}
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| 54 |
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| 55 | (void)(HasDtor){1, 2};
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| 56 | // CHECK: CXXBindTemporaryExpr {{.*}} 'brace_initializers::HasDtor'
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| 57 | // CHECK-NEXT: CompoundLiteralExpr {{.*}} 'brace_initializers::HasDtor'
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| 58 | // CHECK-NEXT: InitListExpr {{.*}} 'brace_initializers::HasDtor'
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| 59 | // CHECK-NEXT: IntegerLiteral {{.*}} 1{{$}}
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| 60 | // CHECK-NEXT: IntegerLiteral {{.*}} 2{{$}}
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| 61 |
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| 62 | #if __cplusplus >= 201103L
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| 63 | (void)(HasCtor){1, 2};
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| 64 | // CHECK-CXX11-NOT: CXXBindTemporaryExpr {{.*}} 'brace_initializers::HasCtor'
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| 65 | // CHECK-CXX11-NOT: ConstantExpr {{.*}} 'brace_initializers::HasCtor'
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| 66 | // CHECK-CXX11: CompoundLiteralExpr {{.*}} 'brace_initializers::HasCtor'
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| 67 | // CHECK-CXX11-NEXT: CXXTemporaryObjectExpr {{.*}} 'brace_initializers::HasCtor'
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| 68 | // CHECK-CXX11-NEXT: IntegerLiteral {{.*}} 1{{$}}
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| 69 | // CHECK-CXX11-NEXT: IntegerLiteral {{.*}} 2{{$}}
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| 70 |
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| 71 | (void)(HasCtorDtor){1, 2};
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| 72 | // CHECK-CXX11: CXXBindTemporaryExpr {{.*}} 'brace_initializers::HasCtorDtor'
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| 73 | // CHECK-CXX11-NOT: ConstantExpr {{.*}} 'brace_initializers::HasCtorDtor'
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| 74 | // CHECK-CXX11: CompoundLiteralExpr {{.*}} 'brace_initializers::HasCtorDtor'
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| 75 | // CHECK-CXX11-NEXT: CXXTemporaryObjectExpr {{.*}} 'brace_initializers::HasCtorDtor'
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| 76 | // CHECK-CXX11-NEXT: IntegerLiteral {{.*}} 1{{$}}
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| 77 | // CHECK-CXX11-NEXT: IntegerLiteral {{.*}} 2{{$}}
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| 78 | #endif
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| 79 | }
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| 80 |
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| 81 | struct PrivateDtor {
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| 82 | int x, y;
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| 83 | private:
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| 84 | ~PrivateDtor(); // expected-note {{declared private here}}
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| 85 | };
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| 86 |
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| 87 | void testPrivateDtor() {
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| 88 | (void)(PrivateDtor){1, 2}; // expected-error {{temporary of type 'brace_initializers::PrivateDtor' has private destructor}}
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| 89 | }
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| 90 | }
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| 91 |
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| 92 | // This doesn't necessarily need to be an error, but CodeGen can't handle it
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| 93 | // at the moment.
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| 94 | int PR17415 = (int){PR17415}; // expected-error {{initializer element is not a compile-time constant}}
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| 95 |
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| 96 | // Make sure we accept this. (Not sure if we actually should... but we do
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| 97 | // at the moment.)
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| 98 | template<unsigned> struct Value { };
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| 99 | template<typename T>
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| 100 | int &check_narrowed(Value<sizeof((T){1.1})>);
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| 101 |
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| 102 | #if __cplusplus >= 201103L
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| 103 | // Compound literals in global lambdas have automatic storage duration
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| 104 | // and are not subject to the constant-initialization rules.
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| 105 | int computed_with_lambda = [] {
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| 106 | int x = 5;
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| 107 | int result = ((int[]) { x, x + 2, x + 4, x + 6 })[0];
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| 108 | return result;
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| 109 | }();
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| 110 | #endif
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| 111 | |
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