57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
// RUN: %clang_cc1 -ast-dump %s 2>&1 | FileCheck %s
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// CHECK-LABEL: example0
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void example0() {
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double d = 2.0;
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// CHECK: VarDecl{{.*}}rd 'double &'
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// CHECK-NEXT: DeclRefExpr
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double &rd = d;
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// CHECK: VarDecl{{.*}}rcd 'const double &'
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// CHECK-NEXT: ImplicitCastExpr{{.*}}'const double' lvalue <NoOp>
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const double &rcd = d;
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}
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struct A { };
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struct B : A { } b;
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// CHECK-LABEL: example1
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void example1() {
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// CHECK: VarDecl{{.*}}ra 'A &'
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// CHECK: ImplicitCastExpr{{.*}}'A' lvalue <DerivedToBase (A)>
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A &ra = b;
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// CHECK: VarDecl{{.*}}rca 'const A &'
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// CHECK: ImplicitCastExpr{{.*}}'const A' lvalue <DerivedToBase (A)>
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// CHECK-NOT: MaterializeTemporaryExpr
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// CHECK: ImplicitCastExpr{{.*}}'const B' lvalue <NoOp>
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const A& rca = b;
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}
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extern B f();
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struct X {
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operator B();
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} x;
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// CHECK-LABEL: example2
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void example2() {
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// CHECK: VarDecl{{.*}}rca 'const A &'
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// CHECK: ImplicitCastExpr{{.*}}'const A' lvalue <DerivedToBase (A)>
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// CHECK: MaterializeTemporaryExpr{{.*}}'const B'
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// CHECK: ImplicitCastExpr{{.*}}'const B' <NoOp>
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// CHECK: CallExpr{{.*}}B
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const A &rca = f();
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// CHECK: VarDecl{{.*}}r 'const A &'
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// CHECK: ImplicitCastExpr{{.*}}'const A' lvalue <DerivedToBase (A)>
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// CHECK: MaterializeTemporaryExpr{{.*}}'const B'
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// CHECK: ImplicitCastExpr{{.*}}'const B' <NoOp>
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// CHECK: CXXMemberCallExpr{{.*}}'B'
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const A& r = x;
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}
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// CHECK-LABEL: example3
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void example3() {
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// CHECK: VarDecl{{.*}}rcd2 'const double &'
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// CHECK: ImplicitCastExpr{{.*}} <IntegralToFloating>
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const double& rcd2 = 2;
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}
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