gleam-lang/gleam

"Rename type parameter" LS action

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#5,762 opened on May 28, 2026

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 (1 comment) (1 reaction) (0 assignees)Rust (21,417 stars) (960 forks)batch import
help wanted

Description

Given a function like:

fn resolve_player_id(player_view: PlayerView(player_id), player: PlayerMatcher) -> player_id {
                                                                                       ^ cursor here

Invoking such action would prompt for a new name and rename all ocurrences of the parameter.

This could be implemented for type definitions too.

Contributor guide

Tech stack
rust
Domain
developer experience
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.
1-2 days
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
RustGleam
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55
Research direction
Implement a rename action for type parameters in the Gleam language server, following the pattern of existing rename actions.