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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
//===- unittest/Tooling/RecursiveASTVisitorTests/ConstructExpr.cpp --------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "TestVisitor.h"
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using namespace clang;
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namespace {
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/// \brief A visitor that optionally includes implicit code and matches
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/// CXXConstructExpr.
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///
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/// The name recorded for the match is the name of the class whose constructor
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/// is invoked by the CXXConstructExpr, not the name of the class whose
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/// constructor the CXXConstructExpr is contained in.
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class ConstructExprVisitor
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: public ExpectedLocationVisitor<ConstructExprVisitor> {
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public:
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ConstructExprVisitor() : ShouldVisitImplicitCode(false) {}
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bool shouldVisitImplicitCode() const { return ShouldVisitImplicitCode; }
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void setShouldVisitImplicitCode(bool NewValue) {
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ShouldVisitImplicitCode = NewValue;
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}
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bool VisitCXXConstructExpr(CXXConstructExpr* Expr) {
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if (const CXXConstructorDecl* Ctor = Expr->getConstructor()) {
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if (const CXXRecordDecl* Class = Ctor->getParent()) {
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Match(Class->getName(), Expr->getLocation());
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}
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}
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return true;
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}
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private:
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bool ShouldVisitImplicitCode;
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};
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TEST(RecursiveASTVisitor, CanVisitImplicitMemberInitializations) {
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ConstructExprVisitor Visitor;
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Visitor.setShouldVisitImplicitCode(true);
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Visitor.ExpectMatch("WithCtor", 2, 8);
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// Simple has a constructor that implicitly initializes 'w'. Test
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// that a visitor that visits implicit code visits that initialization.
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// Note: Clang lazily instantiates implicit declarations, so we need
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// to use them in order to force them to appear in the AST.
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EXPECT_TRUE(Visitor.runOver(
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"struct WithCtor { WithCtor(); }; \n"
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"struct Simple { WithCtor w; }; \n"
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"int main() { Simple s; }\n"));
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}
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// The same as CanVisitImplicitMemberInitializations, but checking that the
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// visits are omitted when the visitor does not include implicit code.
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TEST(RecursiveASTVisitor, CanSkipImplicitMemberInitializations) {
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ConstructExprVisitor Visitor;
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Visitor.setShouldVisitImplicitCode(false);
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Visitor.DisallowMatch("WithCtor", 2, 8);
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// Simple has a constructor that implicitly initializes 'w'. Test
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// that a visitor that skips implicit code skips that initialization.
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// Note: Clang lazily instantiates implicit declarations, so we need
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// to use them in order to force them to appear in the AST.
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EXPECT_TRUE(Visitor.runOver(
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"struct WithCtor { WithCtor(); }; \n"
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"struct Simple { WithCtor w; }; \n"
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"int main() { Simple s; }\n"));
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}
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} // end anonymous namespace
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