golang/go

x/tools/gopls: Completion: add insert-replace support (insertReplaceEdit)

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#40,871 opened on Aug 18, 2020

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FeatureRequestToolsgoplshelp wanted

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Description

Currently gopls is overwriting the surrounding suffix (in addition to prefix) when inserting candidates:

// completing to "food" currently results in "food" instead of "foodoo"
f<>oo

I think it's from https://go-review.googlesource.com/c/tools/+/208501 changing the surrounding's range from [ident.Pos(), c.pos] to [ident.Pos(), ident.End()].

/cc @heschik

Contributor guide

Research direction
Inspect the completion logic for insertReplaceEdit, particularly the range calculation in https://go review.googlesource.com/c/tools/+/208501 that changed from [ident.Pos(), c.pos] to [ident.Pos(), ident.End()].
Tech stack
go
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70