Bug 293105 – Wasm module compile error when a function contains `try_table` after `return`

• Component: New Bugs
• Status: RESOLVED DUPLICATE

Created attachment 475261 [details]
return_try_table.js

Commit version: 9d02067f5de4b0402f58d6c83039e206439a8a8c
System: Ubuntu 20.04.6 LTS, x86_64

The following Wasm module contains a function whose body is `return` and `try_table`.
```
;; return_try_table.wat
(module
  (func (return) (try_table))
)
```
It is a valid Wasm module, so it must be succeed to parse and validate.
However, when running `return_try_table.js`, the equivalent JavaScript file, JavaScriptCore raises compile error.

```
$ jsc return_try_table.js
Exception: Error: Wasm validate failure
module@return_try_table.js:17:20
global code@return_try_table.js:23:7
--> CompileError: WebAssembly.Module doesn't parse at byte 6: function body size doesn't match the expected size, in function at index 0
```

[Alexey Proskuryakov]

*** This bug has been marked as a duplicate of bug 293106 ***