From 590af8639ab4f6cfd82452b5ff2b431b470c64a5 Mon Sep 17 00:00:00 2001
From: Heejin Ahn <aheejin@gmail.com>
Date: Thu, 26 May 2022 18:55:57 -0700
Subject: [EH] Export tags (#4691)

This adds exported tags to `exports` section in wasm-emscripten-finalize
metadata so Emscripten can use it.

Also fixes a bug in the parser. We have only recognized the export
format of
```wasm
  (tag $e2 (param f32))
  (export "e2" (tag $e2))
```
and ignored this format:
```wasm
  (tag $e1 (export "e1") (param i32))
```

Companion patch: https://github.com/emscripten-core/emscripten/pull/17064
---
 src/wasm/wasm-s-parser.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/wasm/wasm-s-parser.cpp')

diff --git a/src/wasm/wasm-s-parser.cpp b/src/wasm/wasm-s-parser.cpp
index 82329af66..dd92278c6 100644
--- a/src/wasm/wasm-s-parser.cpp
+++ b/src/wasm/wasm-s-parser.cpp
@@ -3668,6 +3668,7 @@ void SExpressionWasmBuilder::parseTag(Element& s, bool preParseImport) {
     }
     ex->value = tag->name;
     ex->kind = ExternalKind::Tag;
+    wasm.addExport(ex.release());
   }
 
   // Parse typeuse
-- 
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