feat: support hover on code import

[hyoban]

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: bd00966c-46a1-431e-a538-442ca34011c8

📥 Commits

Reviewing files that changed from the base of the PR and between 52c56f2 and 04508cc.

📒 Files selected for processing (4)

• extensions/vscode/src/providers/hover/resolve.ts
• packages/language-core/src/utils/index.ts
• packages/language-core/src/utils/source-import.test.ts
• packages/language-core/src/utils/source-import.ts

✅ Files skipped from review due to trivial changes (1)

• packages/language-core/src/utils/index.ts

🚧 Files skipped from review as they are similar to previous changes (1)

• extensions/vscode/src/providers/hover/resolve.ts

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📝 Walkthrough

Walkthrough

This pull request refactors the VS Code hover provider functionality by extracting dependency resolution logic into modular, testable helper functions. The change introduces resolveHoverDependency in a new dedicated module to handle mapping cursor positions to resolved dependencies, and adds getImportSpecifierInLine utility to parse import specifiers from text. The hover registration mechanism is updated to support multiple language-specific patterns via HOVER_LANGUAGE_SELECTORS. New test suites validate both helpers with comprehensive coverage of import parsing and dependency resolution scenarios. A new utility module re-export exposes the import specifier functionality from the language-core package.

Possibly related PRs

• refactor: extract providers into composables #69: Updates hover provider registration to use multiple patterns instead of a single pattern, directly related to the HOVER_LANGUAGE_SELECTORS registration changes.
• feat: show warning on pkg fetch error #28: Modifies hover provider dependency resolution logic in the npmx provider, aligning with the refactoring of dependency lookup into the new helper function.
• refactor: extract language-core #82: Introduces language-core utility extraction that this PR builds upon, using new types and utilities from the language-core package.

🚥 Pre-merge checks | ✅ 1

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description check	✅ Passed	The PR description consists only of a screenshot showing TypeScript diagnostics for 'ofetch' import, which directly relates to the changeset's core objective of supporting hover on code imports.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 2

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: f4050ce7-fc6e-461e-be98-a72d7f23af9c

📥 Commits

Reviewing files that changed from the base of the PR and between 20c9d73 and 52c56f2.

📒 Files selected for processing (7)

• extensions/vscode/src/providers/hover/index.ts
• extensions/vscode/src/providers/hover/npmx.ts
• extensions/vscode/src/providers/hover/resolve.test.ts
• extensions/vscode/src/providers/hover/resolve.ts
• extensions/vscode/src/utils/import-specifier.test.ts
• extensions/vscode/src/utils/import-specifier.ts
• playground/index.ts

[9romise]

Thank you!