38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
//===- unittest/Tooling/CastExprTest.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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struct CastExprVisitor : TestVisitor<CastExprVisitor> {
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std::function<void(ExplicitCastExpr *)> OnExplicitCast;
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bool VisitExplicitCastExpr(ExplicitCastExpr *Expr) {
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if (OnExplicitCast)
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OnExplicitCast(Expr);
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return true;
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}
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};
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TEST(CastExprTest, GetSubExprAsWrittenThroughMaterializedTemporary) {
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CastExprVisitor Visitor;
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Visitor.OnExplicitCast = [](ExplicitCastExpr *Expr) {
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auto Sub = Expr->getSubExprAsWritten();
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EXPECT_TRUE(isa<DeclRefExpr>(Sub))
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<< "Expected DeclRefExpr, but saw " << Sub->getStmtClassName();
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};
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Visitor.runOver("struct S1 {};\n"
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"struct S2 { operator S1(); };\n"
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"S1 f(S2 s) { return static_cast<S1>(s); }\n");
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}
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}
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