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[ASTImporter] Import member expr with explicit template args 

Summary:
Member expressions with explicit template arguments were not imported
correctly: the DeclRefExpr was missing. This patch fixes.

Reviewers: a_sidorin, shafik, a.sidorin

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58830

llvm-svn: 355596
This commit is contained in:
Gabor Marton 2019-03-07 13:38:20 +00:00
parent e7ec39c123
commit 5caba3069e
2 changed files with 57 additions and 3 deletions
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10
clang/lib/AST/ASTImporter.cpp
View File

@ -7129,15 +7129,19 @@ ExpectedStmt ASTNodeImporter::VisitMemberExpr(MemberExpr *E) {
DeclarationNameInfo ToMemberNameInfo(ToName, ToLoc);
TemplateArgumentListInfo ToTAInfo, *ResInfo = nullptr;
if (E->hasExplicitTemplateArgs()) {
// FIXME: handle template arguments
return make_error<ImportError>(ImportError::UnsupportedConstruct);
if (Error Err =
ImportTemplateArgumentListInfo(E->getLAngleLoc(), E->getRAngleLoc(),
E->template_arguments(), ToTAInfo))
return std::move(Err);
ResInfo = &ToTAInfo;
}
return MemberExpr::Create(
Importer.getToContext(), ToBase, E->isArrow(), ToOperatorLoc,
ToQualifierLoc, ToTemplateKeywordLoc, ToMemberDecl, ToFoundDecl,
ToMemberNameInfo, nullptr, ToType, E->getValueKind(), E->getObjectKind());
ToMemberNameInfo, ResInfo, ToType, E->getValueKind(), E->getObjectKind());
}
ExpectedStmt

50
clang/unittests/AST/ASTImporterTest.cpp
View File

@ -2604,6 +2604,56 @@ TEST_P(ImportFunctions, ImportImplicitFunctionsInLambda) {
EXPECT_TRUE(LambdaRec->getDestructor());
}
TEST_P(ImportFunctions,
CallExprOfMemberFunctionTemplateWithExplicitTemplateArgs) {
Decl *FromTU = getTuDecl(
R"(
struct X {
template <typename T>
void foo(){}
};
void f() {
X x;
x.foo<int>();
}
)",
Lang_CXX);
auto *FromD = FirstDeclMatcher<FunctionDecl>().match(
FromTU, functionDecl(hasName("f")));
auto *ToD = Import(FromD, Lang_CXX);
EXPECT_TRUE(ToD);
EXPECT_TRUE(MatchVerifier<FunctionDecl>().match(
ToD, functionDecl(hasName("f"), hasDescendant(declRefExpr()))));
}
TEST_P(ImportFunctions,
DependentCallExprOfMemberFunctionTemplateWithExplicitTemplateArgs) {
Decl *FromTU = getTuDecl(
R"(
struct X {
template <typename T>
void foo(){}
};
template <typename T>
void f() {
X x;
x.foo<T>();
}
void g() {
f<int>();
}
)",
Lang_CXX);
auto *FromD = FirstDeclMatcher<FunctionDecl>().match(
FromTU, functionDecl(hasName("g")));
auto *ToD = Import(FromD, Lang_CXX);
EXPECT_TRUE(ToD);
Decl *ToTU = ToAST->getASTContext().getTranslationUnitDecl();
EXPECT_TRUE(MatchVerifier<TranslationUnitDecl>().match(
ToTU, translationUnitDecl(hasDescendant(
functionDecl(hasName("f"), hasDescendant(declRefExpr()))))));
}
struct ImportFriendFunctions : ImportFunctions {};
TEST_P(ImportFriendFunctions, ImportFriendFunctionRedeclChainProto) {