2946cd7010
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
125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
//===- unittest/Tooling/RecursiveASTVisitorTests/DeclRefExpr.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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class DeclRefExprVisitor : public ExpectedLocationVisitor<DeclRefExprVisitor> {
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public:
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DeclRefExprVisitor() : 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 VisitDeclRefExpr(DeclRefExpr *Reference) {
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Match(Reference->getNameInfo().getAsString(), Reference->getLocation());
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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, VisitsBaseClassTemplateArguments) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("x", 2, 3);
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EXPECT_TRUE(Visitor.runOver(
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"void x(); template <void (*T)()> class X {};\nX<x> y;"));
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}
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TEST(RecursiveASTVisitor, VisitsCXXForRangeStmtRange) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("x", 2, 25);
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Visitor.ExpectMatch("x", 2, 30);
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EXPECT_TRUE(Visitor.runOver(
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"int x[5];\n"
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"void f() { for (int i : x) { x[0] = 1; } }",
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DeclRefExprVisitor::Lang_CXX11));
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}
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TEST(RecursiveASTVisitor, VisitsCallExpr) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("x", 1, 22);
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EXPECT_TRUE(Visitor.runOver(
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"void x(); void y() { x(); }"));
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}
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TEST(RecursiveASTVisitor, VisitsExplicitLambdaCaptureInit) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("i", 1, 20);
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EXPECT_TRUE(Visitor.runOver(
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"void f() { int i; [i]{}; }",
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DeclRefExprVisitor::Lang_CXX11));
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}
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TEST(RecursiveASTVisitor, VisitsUseOfImplicitLambdaCapture) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("i", 1, 24);
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EXPECT_TRUE(Visitor.runOver(
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"void f() { int i; [=]{ i; }; }",
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DeclRefExprVisitor::Lang_CXX11));
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}
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TEST(RecursiveASTVisitor, VisitsImplicitLambdaCaptureInit) {
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DeclRefExprVisitor Visitor;
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Visitor.setShouldVisitImplicitCode(true);
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// We're expecting "i" to be visited twice: once for the initialization expr
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// for the captured variable "i" outside of the lambda body, and again for
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// the use of "i" inside the lambda.
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Visitor.ExpectMatch("i", 1, 20, /*Times=*/1);
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Visitor.ExpectMatch("i", 1, 24, /*Times=*/1);
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EXPECT_TRUE(Visitor.runOver(
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"void f() { int i; [=]{ i; }; }",
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DeclRefExprVisitor::Lang_CXX11));
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}
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TEST(RecursiveASTVisitor, VisitsLambdaInitCaptureInit) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("i", 1, 24);
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EXPECT_TRUE(Visitor.runOver(
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"void f() { int i; [a = i + 1]{}; }",
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DeclRefExprVisitor::Lang_CXX14));
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}
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/* FIXME: According to Richard Smith this is a bug in the AST.
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TEST(RecursiveASTVisitor, VisitsBaseClassTemplateArgumentsInInstantiation) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("x", 3, 43);
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EXPECT_TRUE(Visitor.runOver(
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"template <typename T> void x();\n"
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"template <void (*T)()> class X {};\n"
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"template <typename T> class Y : public X< x<T> > {};\n"
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"Y<int> y;"));
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}
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*/
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TEST(RecursiveASTVisitor, VisitsExtension) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("s", 1, 24);
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EXPECT_TRUE(Visitor.runOver(
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"int s = __extension__ (s);\n"));
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}
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TEST(RecursiveASTVisitor, VisitsCopyExprOfBlockDeclCapture) {
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DeclRefExprVisitor Visitor;
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Visitor.ExpectMatch("x", 3, 24);
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EXPECT_TRUE(Visitor.runOver("void f(int(^)(int)); \n"
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"void g() { \n"
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" f([&](int x){ return x; }); \n"
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"}",
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DeclRefExprVisitor::Lang_OBJCXX11));
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}
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} // end anonymous namespace
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