runtimeverification / runtimeverification/wasm-semantics

Function `#set` is not actually total

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bug
Dominant language
WebAssembly
Stars
106
Forks
24
PR merge metrics
No merged PRs in 30d

Description

Currently the function #set is marked as total (with functional attribute).

But it's not actually defined in the case where the key is in the Map, but the value associated with the key is not an Int.

Contributor guide

Open the contributing guide

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

Locate the definition of #set and its functional attribute, then inspect the case where the key is present in the Map but its associated value is not an Int. Review the surrounding Map and Int semantics to determine the intended total behavior; done means #set is defined consistently for that case and its totality claim is correct.

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
Mostly clear
Newbie friendliness
38/100

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