Add support for ref.null in global initializers (#1131)

As per the reference-types spec, ref.null is a constant expression.

I did try to add support for ref.func at the same time, but I didn't
really understand the strategy of wabt and reference types; there seems
to be strong intertwingliness between func.ref and the element section,
whereas it does seem possible for a func.ref to be global.  Oh well, I
didn't need it :)

1 files changed, 1 insertions, 0 deletions

diff --git a/src/binary-reader.h b/src/binary-reader.h
index 87548e82..e89f01b2 100644
--- a/src/binary-reader.h
+++ b/src/binary-reader.h
@@ -410,6 +410,7 @@ class BinaryReaderDelegate {
   virtual Result OnInitExprGlobalGetExpr(Index index, Index global_index) = 0;
   virtual Result OnInitExprI32ConstExpr(Index index, uint32_t value) = 0;
   virtual Result OnInitExprI64ConstExpr(Index index, uint64_t value) = 0;
+  virtual Result OnInitExprRefNull(Index index) = 0;
 
   const State* state = nullptr;
 };