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/ASTWriterStmt.cpp b/lib/Serialization/ASTWriterStmt.cpp
index 5fa08d2..9ca8130 100644
--- a/lib/Serialization/ASTWriterStmt.cpp
+++ b/lib/Serialization/ASTWriterStmt.cpp
@@ -1481,6 +1481,17 @@
Code = serialization::EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK;
}
+void ASTStmtWriter::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
+ VisitExpr(E);
+ Record.push_back(E->getNumExpansions());
+ Writer.AddDeclRef(E->getParameterPack(), Record);
+ Writer.AddSourceLocation(E->getParameterPackLocation(), Record);
+ for (FunctionParmPackExpr::iterator I = E->begin(), End = E->end();
+ I != End; ++I)
+ Writer.AddDeclRef(*I, Record);
+ Code = serialization::EXPR_FUNCTION_PARM_PACK;
+}
+
void ASTStmtWriter::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
VisitExpr(E);
Writer.AddStmt(E->Temporary);