WebAssembly / WebAssembly/binaryen

Name section: Support label names (id 3)

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Dominant language
WebAssembly
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Description

I get this when running wasm-opt on the attached .wasm file

binary-trees.zip

It was generated with the wat crate.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the wasm-opt behavior with the attached binary-trees.zip file and note the exact failure. Then inspect how the wasm module's name section, including label names with id 3, is handled; completion should be wasm-opt correctly processing the generated module from the wat crate.

Written by the indexing model from the issue text.

Assessment

Tech stack
wasm
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
32/100

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