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Don't emit `module definition` or `module instance` unless present in input when generating `.bin.wast`

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
45/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
wasm
Domain
compilers

Research direction

Start in arrange.ml, where PR #1796 changed the reference interpreter's generation of .bin.wast output. Trace how the original source is represented and how module definition and module instance commands are emitted. Done means those commands appear in generated output only when they were present in the input, without breaking downstream .bin.wast consumers.

Written by the indexing model from the issue text.

Description

The PR #1796 changed the reference interpreter to generate these new commands by default in arrange.ml. Unfortunately this breaks downstream clients that consume .bin.wast.

Would it be possible to only emit module definition and module instance if they were in the original source?

Dominant language
WebAssembly
Stars
3.5k
Forks
539
Avg merge
10h 24m
Merged PRs (30d)
11

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