0xMiden/miden-vm

Warn about unused constants

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#2,898 opened on Mar 23, 2026

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Description

The assembler currently warns about unused imports and unused docstrings, but not about unused constants.

We use warnings_as_errors in the protocol to make sure we have no unused imports and the same would be nice to have for constants (e.g. no longer used error constants).

Of course, this is not of very high priority.

Contributor guide

Research direction
Study the assembler code to see how warnings for unused imports and docstrings are generated, then apply the same pattern to constants. Find relevant tests and extend them.
Tech stack
rust
Domain
backendcompilers
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RustGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75