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

   1 // Test without serialization:
   2 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -ast-dump %s \
   3 // RUN: | FileCheck -strict-whitespace %s
   4 //
   5 // Test with serialization:
   6 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-pch -o %t %s
   7 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -x c++ -include-pch %t -ast-dump-all /dev/null \
   8 // RUN: | FileCheck -strict-whitespace %s
   9
  10 void test_type_trait() {
  11   // An unary type trait.
  12   enum E {};
  13   (void) __is_enum(E);
  14   // A binary type trait.
  15   (void) __is_same(int ,float);
  16   // An n-ary type trait.
  17   (void) __is_constructible(int, int, int, int);
  18 }
  19
  20 void test_array_type_trait() {
  21   // An array type trait.
  22   (void) __array_rank(int[10][20]);
  23 }
  24
  25 void test_expression_trait() {
  26   // An expression trait.
  27   (void) __is_lvalue_expr(1);
  28 }
  29
  30 void test_unary_expr_or_type_trait() {
  31   // Some UETTs.
  32   (void) sizeof(int);
  33   (void) alignof(int);
  34   (void) __alignof(int);
  35 }
  36 // CHECK: TranslationUnitDecl {{.*}} <<invalid sloc>> <invalid sloc>{{( <undeserialized declarations>)?}}
  37 // CHECK: |-FunctionDecl {{.*}} <{{.*}}ast-dump-traits.cpp:10:1, line:18:1> line:10:6{{( imported)?}} test_type_trait 'void ()'
  38 // CHECK-NEXT: | `-CompoundStmt {{.*}} <col:24, line:18:1>
  39 // CHECK-NEXT: |   |-DeclStmt {{.*}} <line:12:3, col:12>
  40 // CHECK-NEXT: |   | `-EnumDecl {{.*}} <col:3, col:11> col:8{{( imported)?}} referenced E
  41 // CHECK-NEXT: |   |-CStyleCastExpr {{.*}} <line:13:3, col:21> 'void' <ToVoid>
  42 // CHECK-NEXT: |   | `-TypeTraitExpr {{.*}} <col:10, col:21> 'bool' __is_enum
  43 // CHECK-NEXT: |   |-CStyleCastExpr {{.*}} <line:15:3, col:30> 'void' <ToVoid>
  44 // CHECK-NEXT: |   | `-TypeTraitExpr {{.*}} <col:10, col:30> 'bool' __is_same
  45 // CHECK-NEXT: |   `-CStyleCastExpr {{.*}} <line:17:3, col:47> 'void' <ToVoid>
  46 // CHECK-NEXT: |     `-TypeTraitExpr {{.*}} <col:10, col:47> 'bool' __is_constructible
  47 // CHECK-NEXT: |-FunctionDecl {{.*}} <line:20:1, line:23:1> line:20:6{{( imported)?}} test_array_type_trait 'void ()'
  48 // CHECK-NEXT: | `-CompoundStmt {{.*}} <col:30, line:23:1>
  49 // CHECK-NEXT: |   `-CStyleCastExpr {{.*}} <line:22:3, col:34> 'void' <ToVoid>
  50 // CHECK-NEXT: |     `-ArrayTypeTraitExpr {{.*}} <col:10, col:34> 'unsigned long' __array_rank
  51 // CHECK-NEXT: |-FunctionDecl {{.*}} <line:25:1, line:28:1> line:25:6{{( imported)?}} test_expression_trait 'void ()'
  52 // CHECK-NEXT: | `-CompoundStmt {{.*}} <col:30, line:28:1>
  53 // CHECK-NEXT: |   `-CStyleCastExpr {{.*}} <line:27:3, col:28> 'void' <ToVoid>
  54 // CHECK-NEXT: |     `-ExpressionTraitExpr {{.*}} <col:10, col:28> 'bool' __is_lvalue_expr
  55 // CHECK-NEXT: `-FunctionDecl {{.*}} <line:30:1, line:35:1> line:30:6{{( imported)?}} test_unary_expr_or_type_trait 'void ()'
  56 // CHECK-NEXT:   `-CompoundStmt {{.*}} <col:38, line:35:1>
  57 // CHECK-NEXT:     |-CStyleCastExpr {{.*}} <line:32:3, col:20> 'void' <ToVoid>
  58 // CHECK-NEXT:     | `-UnaryExprOrTypeTraitExpr {{.*}} <col:10, col:20> 'unsigned long' sizeof 'int'
  59 // CHECK-NEXT:     |-CStyleCastExpr {{.*}} <line:33:3, col:21> 'void' <ToVoid>
  60 // CHECK-NEXT:     | `-UnaryExprOrTypeTraitExpr {{.*}} <col:10, col:21> 'unsigned long' alignof 'int'
  61 // CHECK-NEXT:     `-CStyleCastExpr {{.*}} <line:34:3, col:23> 'void' <ToVoid>
  62 // CHECK-NEXT:       `-UnaryExprOrTypeTraitExpr {{.*}} <col:10, col:23> 'unsigned long' __alignof 'int'