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//===- unittest/Tooling/CastExprTest.cpp ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "TestVisitor.h"
using namespace clang;
namespace {
struct CastExprVisitor : TestVisitor<CastExprVisitor> {
std::function<void(ExplicitCastExpr *)> OnExplicitCast;
bool VisitExplicitCastExpr(ExplicitCastExpr *Expr) {
if (OnExplicitCast)
OnExplicitCast(Expr);
return true;
}
};
TEST(CastExprTest, GetSubExprAsWrittenThroughMaterializedTemporary) {
CastExprVisitor Visitor;
Visitor.OnExplicitCast = [](ExplicitCastExpr *Expr) {
auto Sub = Expr->getSubExprAsWritten();
EXPECT_TRUE(isa<DeclRefExpr>(Sub))
<< "Expected DeclRefExpr, but saw " << Sub->getStmtClassName();
};
Visitor.runOver("struct S1 {};\n"
"struct S2 { operator S1(); };\n"
"S1 f(S2 s) { return static_cast<S1>(s); }\n");
}
}
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