From ffac06650507ac413d60d72aadc1e33fb1f91ccf Mon Sep 17 00:00:00 2001
From: Abbas Mashayekh <martianboy2005@gmail.com>
Date: Wed, 24 Mar 2021 21:43:45 +0430
Subject: [RT] Support expressions in element segments (#3666)

This PR adds support for `ref.null t` as a valid element segment
item. The abbreviated format of `(elem ... func $f $g...)` is kept in
both printing and binary emitting if all items are `ref.func`s. Public
APIs aren't updated in this PR.
---
 src/wasm-traversal.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/wasm-traversal.h')

diff --git a/src/wasm-traversal.h b/src/wasm-traversal.h
index 7dcf2d146..1f307c318 100644
--- a/src/wasm-traversal.h
+++ b/src/wasm-traversal.h
@@ -196,6 +196,9 @@ struct Walker : public VisitorType {
     if (segment->table.is()) {
       walk(segment->offset);
     }
+    for (auto* expr : segment->data) {
+      walk(expr);
+    }
     static_cast<SubType*>(this)->visitElementSegment(segment);
   }
 
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