diff options
Diffstat (limited to 'utils/TableGen/SetTheory.h')
-rw-r--r-- | utils/TableGen/SetTheory.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/utils/TableGen/SetTheory.h b/utils/TableGen/SetTheory.h index c648d46..2202f22 100644 --- a/utils/TableGen/SetTheory.h +++ b/utils/TableGen/SetTheory.h @@ -66,6 +66,8 @@ public: /// Operator - A callback representing a DAG operator. struct Operator { + virtual ~Operator() {} + /// apply - Apply this operator to Expr's arguments and insert the result /// in Elts. virtual void apply(SetTheory&, DagInit *Expr, RecSet &Elts) =0; @@ -75,6 +77,8 @@ public: /// set into a fully expanded list of elements. Expanders provide a way for /// users to define named sets that can be used in DAG expressions. struct Expander { + virtual ~Expander() {} + virtual void expand(SetTheory&, Record*, RecSet &Elts) =0; }; |