clang/test/AST/ast-dump-static-operators.cpp

   1 // RUN: %clang_cc1 -std=c++23 %s -ast-dump -triple x86_64-unknown-unknown -o - | FileCheck -strict-whitespace %s
   2
   3 struct Functor {
   4   static int operator()(int x, int y) {
   5     return x + y;
   6   }
   7   static int operator[](int x, int y) {
   8     return x + y;
   9   }
  10 };
  11
  12 Functor& get_functor() {
  13   static Functor functor;
  14   return functor;
  15 }
  16
  17 void call_static_operators() {
  18   Functor functor;
  19
  20   int z1 = functor(1, 2);
  21   // CHECK:      CXXOperatorCallExpr {{.*}} 'int' '()'
  22   // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:19, col:24> 'int (*)(int, int)' <FunctionToPointerDecay>
  23   // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:19, col:24> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator()' 'int (int, int)'
  24   // CHECK-NEXT: |-DeclRefExpr {{.*}} <col:12> 'Functor' lvalue Var {{.*}} 'functor' 'Functor'
  25   // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:20> 'int' 1
  26   // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:23> 'int' 2
  27
  28   int z2 = functor[1, 2];
  29   // CHECK:      CXXOperatorCallExpr {{.*}} 'int' '[]'
  30   // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:19, col:24> 'int (*)(int, int)' <FunctionToPointerDecay>
  31   // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:19, col:24> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator[]' 'int (int, int)'
  32   // CHECK-NEXT: |-DeclRefExpr {{.*}} <col:12> 'Functor' lvalue Var {{.*}} 'functor' 'Functor'
  33   // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:20> 'int' 1
  34   // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:23> 'int' 2
  35
  36   int z3 = get_functor()(1, 2);
  37   // CHECK:      CXXOperatorCallExpr {{.*}} 'int' '()'
  38   // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:25, col:30> 'int (*)(int, int)' <FunctionToPointerDecay>
  39   // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:25, col:30> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator()' 'int (int, int)'
  40   // CHECK-NEXT: |-CallExpr {{.*}} <col:12, col:24> 'Functor' lvalue
  41   // CHECK-NEXT: | `-ImplicitCastExpr {{.*}} <col:12> 'Functor &(*)()' <FunctionToPointerDecay>
  42   // CHECK-NEXT: |   `-DeclRefExpr {{.*}} <col:12> 'Functor &()' lvalue Function {{.*}} 'get_functor' 'Functor &()'
  43   // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:26> 'int' 1
  44   // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:29> 'int' 2
  45
  46   int z4 = get_functor()[1, 2];
  47   // CHECK:      CXXOperatorCallExpr {{.*}} 'int' '[]'
  48   // CHECK-NEXT: |-ImplicitCastExpr {{.*}} <col:25, col:30> 'int (*)(int, int)' <FunctionToPointerDecay>
  49   // CHECK-NEXT: | `-DeclRefExpr {{.*}} <col:25, col:30> 'int (int, int)' lvalue CXXMethod {{.*}} 'operator[]' 'int (int, int)'
  50   // CHECK-NEXT: |-CallExpr {{.*}} <col:12, col:24> 'Functor' lvalue
  51   // CHECK-NEXT: | `-ImplicitCastExpr {{.*}} <col:12> 'Functor &(*)()' <FunctionToPointerDecay>
  52   // CHECK-NEXT: |   `-DeclRefExpr {{.*}} <col:12> 'Functor &()' lvalue Function {{.*}} 'get_functor' 'Functor &()'
  53   // CHECK-NEXT: |-IntegerLiteral {{.*}} <col:26> 'int' 1
  54   // CHECK-NEXT: `-IntegerLiteral {{.*}} <col:29> 'int' 2
  55 }