PR13811: Add a FunctionParmPackExpr node to handle references to function
parameter packs where the reference is not being expanded but the pack has
been. Previously, Clang would segfault in such cases.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163672 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReaderStmt.cpp b/lib/Serialization/ASTReaderStmt.cpp
index 6ca450b..cfe22b5 100644
--- a/lib/Serialization/ASTReaderStmt.cpp
+++ b/lib/Serialization/ASTReaderStmt.cpp
@@ -1468,6 +1468,16 @@
E->NameLoc = ReadSourceLocation(Record, Idx);
}
+void ASTStmtReader::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
+ VisitExpr(E);
+ E->NumParameters = Record[Idx++];
+ E->ParamPack = ReadDeclAs<ParmVarDecl>(Record, Idx);
+ E->NameLoc = ReadSourceLocation(Record, Idx);
+ ParmVarDecl **Parms = reinterpret_cast<ParmVarDecl**>(E+1);
+ for (unsigned i = 0, n = E->NumParameters; i != n; ++i)
+ Parms[i] = ReadDeclAs<ParmVarDecl>(Record, Idx);
+}
+
void ASTStmtReader::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
VisitExpr(E);
E->Temporary = Reader.ReadSubExpr();
@@ -2183,6 +2193,11 @@
case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK:
S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);
break;
+
+ case EXPR_FUNCTION_PARM_PACK:
+ S = FunctionParmPackExpr::CreateEmpty(Context,
+ Record[ASTStmtReader::NumExprFields]);
+ break;
case EXPR_MATERIALIZE_TEMPORARY:
S = new (Context) MaterializeTemporaryExpr(Empty);