1//===- unittest/Tooling/RecursiveASTVisitorTests/InitListExprPreOrder.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
11using namespace clang;
12
13namespace {
14
15// Check to ensure that InitListExpr is visited twice, once each for the
16// syntactic and semantic form.
17class InitListExprPreOrderVisitor : public ExpectedLocationVisitor {
18public:
19 InitListExprPreOrderVisitor(bool VisitImplicitCode) {
20 ShouldVisitImplicitCode = VisitImplicitCode;
21 }
22
23 bool VisitInitListExpr(InitListExpr *ILE) override {
24 Match(ILE->isSemanticForm() ? "semantic" : "syntactic", ILE->getBeginLoc());
25 return true;
26 }
27};
28
29TEST(RecursiveASTVisitor, InitListExprIsPreOrderVisitedTwice) {
30 InitListExprPreOrderVisitor Visitor(/*VisitImplicitCode=*/true);
31 Visitor.ExpectMatch("syntactic", 2, 21);
32 Visitor.ExpectMatch("semantic", 2, 21);
33 EXPECT_TRUE(Visitor.runOver("struct S { int x; };\n"
34 "static struct S s = {.x = 0};\n",
35 InitListExprPreOrderVisitor::Lang_C));
36}
37
38TEST(RecursiveASTVisitor, InitListExprVisitedOnceWhenNoImplicit) {
39 InitListExprPreOrderVisitor Visitor(/*VisitImplicitCode=*/false);
40 Visitor.ExpectMatch("syntactic", 2, 21);
41 Visitor.DisallowMatch("semantic", 2, 21);
42 EXPECT_TRUE(Visitor.runOver("struct S { int x; };\n"
43 "static struct S s = {.x = 0};\n",
44 InitListExprPreOrderVisitor::Lang_C));
45}
46
47} // end anonymous namespace
48

source code of clang/unittests/Tooling/RecursiveASTVisitorTests/InitListExprPreOrder.cpp