clang/test/AST/ast-dump-using.cpp

   1 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -ast-dump %s | FileCheck -strict-whitespace %s
   2
   3 namespace a {
   4 struct S;
   5 template <typename T> T x = {};
   6 }
   7 namespace b {
   8 using a::S;
   9 // CHECK:      UsingDecl {{.*}} a::S
  10 // CHECK-NEXT: | `-NestedNameSpecifier Namespace {{.*}} 'a'
  11 // CHECK-NEXT: UsingShadowDecl {{.*}} implicit CXXRecord {{.*}} 'S'
  12 // CHECK-NEXT: `-RecordType {{.*}} 'a::S'
  13 typedef S f; // to dump the introduced type
  14 // CHECK:      TypedefDecl
  15 // CHECK-NEXT: `-ElaboratedType {{.*}} 'S' sugar
  16 // CHECK-NEXT:   `-UsingType [[TYPE_ADDR:.*]] 'a::S' sugar
  17 // CHECK-NEXT:     |-UsingShadow [[SHADOW_ADDR:.*]] 'S'
  18 // CHECK-NEXT:     `-RecordType {{.*}} 'a::S'
  19 typedef S e; // check the same UsingType is reused.
  20 // CHECK:      TypedefDecl
  21 // CHECK-NEXT: `-ElaboratedType {{.*}} 'S' sugar
  22 // CHECK-NEXT:   `-UsingType [[TYPE_ADDR]] 'a::S' sugar
  23 // CHECK-NEXT:     |-UsingShadow [[SHADOW_ADDR]] 'S'
  24 // CHECK-NEXT:     `-RecordType {{.*}} 'a::S'
  25 using a::x;
  26
  27 void foo() {
  28   x<int> = 3;
  29   // CHECK: DeclRefExpr {{.*}} 'x' {{.*}} (UsingShadow {{.*}} 'x')
  30 }
  31 }