Implement a new type trait __is_trivially_constructible(T, Args...)
that provides the behavior of the C++11 library trait
std::is_trivially_constructible<T, Args...>, which can't be
implemented purely as a library.
Since __is_trivially_constructible can have zero or more arguments, I
needed to add Yet Another Type Trait Expression Class, this one
handling arbitrary arguments. The next step will be to migrate
UnaryTypeTrait and BinaryTypeTrait over to this new, more general
TypeTrait class.
Fixes the Clang side of <rdar://problem/10895483> / PR12038.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151352 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReaderStmt.cpp b/lib/Serialization/ASTReaderStmt.cpp
index 77e4541..2d308fb 100644
--- a/lib/Serialization/ASTReaderStmt.cpp
+++ b/lib/Serialization/ASTReaderStmt.cpp
@@ -1327,6 +1327,17 @@
E->RhsType = GetTypeSourceInfo(Record, Idx);
}
+void ASTStmtReader::VisitTypeTraitExpr(TypeTraitExpr *E) {
+ VisitExpr(E);
+ E->TypeTraitExprBits.NumArgs = Record[Idx++];
+ E->TypeTraitExprBits.Kind = Record[Idx++];
+ E->TypeTraitExprBits.Value = Record[Idx++];
+
+ TypeSourceInfo **Args = E->getTypeSourceInfos();
+ for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
+ Args[I] = GetTypeSourceInfo(Record, Idx);
+}
+
void ASTStmtReader::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
VisitExpr(E);
E->ATT = (ArrayTypeTrait)Record[Idx++];
@@ -2046,6 +2057,11 @@
S = new (Context) BinaryTypeTraitExpr(Empty);
break;
+ case EXPR_TYPE_TRAIT:
+ S = TypeTraitExpr::CreateDeserialized(Context,
+ Record[ASTStmtReader::NumExprFields]);
+ break;
+
case EXPR_ARRAY_TYPE_TRAIT:
S = new (Context) ArrayTypeTraitExpr(Empty);
break;