✨ TypeScript #65
✨ TypeScript #65
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WalkthroughThis pull request introduces a new TypeScript language support package for AST Grep. It adds a changeset entry and several new files under the Changes
Sequence Diagram(s)sequenceDiagram
participant Nursery as Nursery Test Runner
participant Config as Language Registration (index.js / index.d.ts)
participant Parser as TypeScript Parser Engine
Nursery->>Config: Import registration object
Config-->>Nursery: Provide libraryPath, extensions, languageSymbol, expandoChar
Nursery->>Parser: Invoke parsing on TypeScript code ("let x: number = 123")
Parser-->>Nursery: Return syntax tree with root node and node kind
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Actionable comments posted: 3
🧹 Nitpick comments (3)
packages/typescript/README.md (1)
1-25: Good documentation, but could be enhanced with more context.The README provides clear installation instructions and a basic usage example, which is great. Consider enhancing it with:
- A brief introduction explaining what AST Grep is and why it's valuable for TypeScript users
- More advanced usage examples (e.g., searching for specific patterns in TypeScript code)
- Notes on compatibility with different TypeScript versions
Here's a suggestion for an introduction section to add at the beginning:
# ast-grep napi language for typescript + +[ast-grep](https://ast-grep.github.io/) is a CLI tool for syntactically-aware code search, +powered by concrete syntax trees. This package adds TypeScript language support to ast-grep, +allowing you to search and manipulate TypeScript code with high precision. ## Installationpackages/typescript/package.json (2)
4-4: Add a descriptive package description.The description field is empty. Adding a clear description would help users understand the purpose of this package.
- "description": "", + "description": "TypeScript language support for ast-grep",
22-22: Add author information.The author field is empty. Adding author information provides proper attribution for the package.
- "author": "", + "author": "AST Grep Team",
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pnpm-lock.yamlis excluded by!**/pnpm-lock.yaml
📒 Files selected for processing (7)
.changeset/warm-streets-type.md(1 hunks)packages/typescript/README.md(1 hunks)packages/typescript/index.d.ts(1 hunks)packages/typescript/index.js(1 hunks)packages/typescript/nursery.js(1 hunks)packages/typescript/package.json(1 hunks)packages/typescript/postinstall.js(1 hunks)
🔇 Additional comments (5)
.changeset/warm-streets-type.md (1)
1-6: LGTM! Changeset correctly defined.The changeset properly specifies the new
@ast-grep/lang-typescriptpackage as a patch release with an appropriate description.packages/typescript/postinstall.js (1)
1-4: LGTM! Postinstall script follows the standard pattern.The script correctly leverages the shared implementation from
@ast-grep/setup-langand provides the current directory for installation.packages/typescript/index.d.ts (1)
1-10:✅ Verification successful
LGTM! Type definitions are clear and complete.
The
LanguageRegistrationtype properly defines the structure needed for language registration with both required and optional properties.
🏁 Script executed:
#!/bin/bash # Check if the corresponding implementation file exists ls packages/typescript/index.js echo "Checking the implementation of the registration object:" cat packages/typescript/index.jsLength of output: 448
LGTM! The type definition in
packages/typescript/index.d.tsis clear and complete, and the corresponding implementation inpackages/typescript/index.jsexists and correctly instantiates the registration object.
- The
LanguageRegistrationtype accurately defines required (libraryPath,extensions) and optional (languageSymbol,metaVarChar,expandoChar) properties.- The implementation file correctly sets the properties (excluding the optional
metaVarChar, which is acceptable) and constructs thelibraryPathusingnode:path.packages/typescript/nursery.js (1)
1-18: LGTM: Test setup correctly configured.The nursery.js file properly sets up the testing environment for TypeScript using the @ast-grep/nursery package. The test runner successfully verifies basic parsing functionality by checking if a lexical declaration is correctly identified.
packages/typescript/index.js (1)
1-9: LGTM: Language registration is properly configured.The language registration exports the necessary configuration for TypeScript parsing, including the library path, language symbol, and expando character.
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