clang/unittests/Tooling/RecursiveASTVisitorTests/CXXOperatorCallExprTraverser.cpp

   1 //===- CXXOperatorCallExprTraverser.cpp -----------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "TestVisitor.h"
  10
  11 using namespace clang;
  12
  13 namespace {
  14
  15 class CXXOperatorCallExprTraverser : public ExpectedLocationVisitor {
  16 public:
  17   // Use Traverse, not Visit, to check that data recursion optimization isn't
  18   // bypassing the call of this function.
  19   bool TraverseCXXOperatorCallExpr(CXXOperatorCallExpr *CE) override {
  20     Match(getOperatorSpelling(CE->getOperator()), CE->getExprLoc());
  21     return ExpectedLocationVisitor::TraverseCXXOperatorCallExpr(CE);
  22   }
  23 };
  24
  25 TEST(RecursiveASTVisitor, TraversesOverloadedOperator) {
  26   CXXOperatorCallExprTraverser Visitor;
  27   Visitor.ExpectMatch("()", 4, 9);
  28   EXPECT_TRUE(Visitor.runOver(
  29     "struct A {\n"
  30     "  int operator()();\n"
  31     "} a;\n"
  32     "int k = a();\n"));
  33 }
  34
  35 } // end anonymous namespace