1 files changed, 10 insertions, 1 deletions
diff --git a/src/sksl/ir/SkSLFunctionReference.h b/src/sksl/ir/SkSLFunctionReference.h
index 58fefce801..4c7f7670d0 100644
--- a/src/sksl/ir/SkSLFunctionReference.h
+++ b/src/sksl/ir/SkSLFunctionReference.h
@@ -28,6 +28,10 @@ struct FunctionReference : public Expression {
         return false;
     }
 
+    std::unique_ptr<Expression> clone() const override {
+        return std::unique_ptr<Expression>(new FunctionReference(fOffset, fFunctions, &fType));
+    }
+
     String description() const override {
         return String("<function>");
     }
@@ -35,7 +39,12 @@ struct FunctionReference : public Expression {
     const std::vector<const FunctionDeclaration*> fFunctions;
 
     typedef Expression INHERITED;
-};
+
+private:
+    FunctionReference(int offset, std::vector<const FunctionDeclaration*> function,
+                      const Type* type)
+    : INHERITED(offset, kFunctionReference_Kind, *type)
+    , fFunctions(function) {}};
 
 } // namespace