[ASTImporter] Support TypeTraitExpr
Patch by Takafumi Kubota!
Differential Revision: https://reviews.llvm.org/D39722
llvm-svn: 318998
diff --git a/clang/lib/AST/ASTImporter.cpp b/clang/lib/AST/ASTImporter.cpp
index 15c9f69..8bfc903 100644
--- a/clang/lib/AST/ASTImporter.cpp
+++ b/clang/lib/AST/ASTImporter.cpp
@@ -291,6 +291,7 @@
Expr *VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E);
Expr *VisitCXXNamedCastExpr(CXXNamedCastExpr *E);
Expr *VisitSubstNonTypeTemplateParmExpr(SubstNonTypeTemplateParmExpr *E);
+ Expr *VisitTypeTraitExpr(TypeTraitExpr *E);
template<typename IIter, typename OIter>
@@ -5890,6 +5891,26 @@
Replacement);
}
+Expr *ASTNodeImporter::VisitTypeTraitExpr(TypeTraitExpr *E) {
+ QualType ToType = Importer.Import(E->getType());
+ if (ToType.isNull())
+ return nullptr;
+
+ SmallVector<TypeSourceInfo *, 4> ToArgs(E->getNumArgs());
+ if (ImportContainerChecked(E->getArgs(), ToArgs))
+ return nullptr;
+
+ // According to Sema::BuildTypeTrait(), if E is value-dependent,
+ // Value is always false.
+ bool ToValue = false;
+ if (!E->isValueDependent())
+ ToValue = E->getValue();
+
+ return TypeTraitExpr::Create(
+ Importer.getToContext(), ToType, Importer.Import(E->getLocStart()),
+ E->getTrait(), ToArgs, Importer.Import(E->getLocEnd()), ToValue);
+}
+
void ASTNodeImporter::ImportOverrides(CXXMethodDecl *ToMethod,
CXXMethodDecl *FromMethod) {
for (auto *FromOverriddenMethod : FromMethod->overridden_methods())