| 1 | //===- unittest/Tooling/RecursiveASTVisitorTests/InitListExprPreOrder.cpp -===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "TestVisitor.h" |
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| 10 | |
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| 11 | using namespace clang; |
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| 12 | |
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| 13 | namespace { |
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| 14 | |
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| 15 | // Check to ensure that InitListExpr is visited twice, once each for the |
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| 16 | // syntactic and semantic form. |
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| 17 | class InitListExprPreOrderVisitor |
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| 18 | : public ExpectedLocationVisitor<InitListExprPreOrderVisitor> { |
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| 19 | public: |
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| 20 | InitListExprPreOrderVisitor(bool VisitImplicitCode) |
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| 21 | : VisitImplicitCode(VisitImplicitCode) {} |
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| 22 | |
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| 23 | bool shouldVisitImplicitCode() const { return VisitImplicitCode; } |
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| 24 | |
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| 25 | bool VisitInitListExpr(InitListExpr *ILE) { |
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| 26 | Match(Name: ILE->isSemanticForm() ? "semantic" : "syntactic" , Location: ILE->getBeginLoc()); |
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| 27 | return true; |
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| 28 | } |
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| 29 | |
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| 30 | private: |
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| 31 | bool VisitImplicitCode; |
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| 32 | }; |
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| 33 | |
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| 34 | TEST(RecursiveASTVisitor, InitListExprIsPreOrderVisitedTwice) { |
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| 35 | InitListExprPreOrderVisitor Visitor(/*VisitImplicitCode=*/true); |
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| 36 | Visitor.ExpectMatch(Match: "syntactic" , Line: 2, Column: 21); |
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| 37 | Visitor.ExpectMatch(Match: "semantic" , Line: 2, Column: 21); |
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| 38 | EXPECT_TRUE(Visitor.runOver("struct S { int x; };\n" |
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| 39 | "static struct S s = {.x = 0};\n" , |
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| 40 | InitListExprPreOrderVisitor::Lang_C)); |
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| 41 | } |
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| 42 | |
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| 43 | TEST(RecursiveASTVisitor, InitListExprVisitedOnceWhenNoImplicit) { |
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| 44 | InitListExprPreOrderVisitor Visitor(/*VisitImplicitCode=*/false); |
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| 45 | Visitor.ExpectMatch(Match: "syntactic" , Line: 2, Column: 21); |
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| 46 | Visitor.DisallowMatch(Match: "semantic" , Line: 2, Column: 21); |
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| 47 | EXPECT_TRUE(Visitor.runOver("struct S { int x; };\n" |
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| 48 | "static struct S s = {.x = 0};\n" , |
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| 49 | InitListExprPreOrderVisitor::Lang_C)); |
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| 50 | } |
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| 51 | |
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| 52 | } // end anonymous namespace |
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| 53 | |
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