1 files changed, 3 insertions, 7 deletions
diff --git a/src/wasm/wasm-s-parser.cpp b/src/wasm/wasm-s-parser.cpp
index b2212db18..b9927cbc7 100644
--- a/src/wasm/wasm-s-parser.cpp
+++ b/src/wasm/wasm-s-parser.cpp
@@ -51,7 +51,7 @@ int unhex(char c) {
 namespace wasm {
 
 static Name STRUCT("struct"), FIELD("field"), ARRAY("array"), I8("i8"),
-  I16("i16"), RTT("rtt"), REF_IS_NULL("ref.is_null");
+  I16("i16"), RTT("rtt");
 
 static Address getAddress(const Element* s) { return atoll(s->c_str()); }
 
@@ -1922,13 +1922,9 @@ Expression* SExpressionWasmBuilder::makeRefNull(Element& s) {
   return ret;
 }
 
-Expression* SExpressionWasmBuilder::makeRefIs(Element& s) {
+Expression* SExpressionWasmBuilder::makeRefIs(Element& s, RefIsOp op) {
   auto ret = allocator.alloc<RefIs>();
-  if (*s[0] == REF_IS_NULL) {
-    ret->op = RefIsNull;
-  } else {
-    WASM_UNREACHABLE("unimplemented ref.is_*");
-  }
+  ret->op = op;
   ret->value = parseExpression(s[1]);
   ret->finalize();
   return ret;