rokucommunity / rokucommunity/brighterscript

signature help doesn't consider parent scopes

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#253 0 comments 0 reactions 0 assignees View on GitHub

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bug LanguageServer
Dominant language
TypeScript
Stars
208
Forks
68
Avg merge
8h 39m
Merged PRs (30d)
39

Description

Program.getSignatureHelp doesn't properly recognize signatures found in parent scopes. This was uncovered during the efforts of #252 when we realized that XmlScope.getFiles only returned the files directly referenced by that scope (and not parent scopes).

We need to refactor the getSignatureHelp function to consider the entire scope inheritance chain when scanning for function signatures, and a similar concept when scanning for class method signatures.

Contributor guide

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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

Start at Program.getSignatureHelp and inspect how it scans scopes for function signatures, using the XmlScope.getFiles behavior and issue #252 as context. Trace the parent-scope chain and apply the same consideration to class method signatures. Done means signatures from inherited parent scopes are recognized in both cases.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
compilers
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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