Code completion does not show cross-file new identifiers (unless a significant portion of the new identifier is typed)

[DimaKozhinov]

Swift version

Swift version 6.1 (swift-6.1-RELEASE)

Platform

Windows 11

Editor

Visual Studio Code 1.99.3 with Swift plugin 2.2.0, other editors

Description

When a new identifier is added (a let constant, a func, etc.) in a different source file within a module, it is not listed in results of textDocument/completion request, unless a significant portion of the new identifier is typed by user.

Expected behavior: When a new identifier is added in a different source file, it should appear in code completion when a user types just the first character of the new identifier (and not a significant portion of it), like it is already working now if the new identifier is added in the same file.

Steps to Reproduce

1. Create a Swift package:

mkdir test
cd test
swift package init --type executable

2. Add a new Swift file in the Sources folder of the package, e.g. helpers.swift in addition to the default main.swift .
3. Open the test package folder in Visual Studio Code.
4. Edit the helpers.swift in VS Code: add for example let zzzConst = 42 .
5. Switch to main.swift file in VS Code and type something that would use the new constant from helpers.swift, e.g. "let aaa = z"
6. Code completion does not show zzzConst (shows only two suggestions starting with "zip")
7. Add more text, now "let aaa = zz"
8. Code completion does not show any suggestions at all.
9. Add more text, now "let aaa = zzz"
10. At last zzzConst appears in code suggestions.

Logging

No response

[ahoppen]

Thanks for filing the issue @DimaKozhinov. One quick question: Did you save helpers.swift before trying to complete items in main.swift. If not, could you try if the zzzConst appears in main.swift after you save helpers.swift?

[DimaKozhinov]

I can confirm that after saving helpers.swift the zzzConst appears in code completion in main.swift .

[ahoppen]

Thanks for clarifying.