feat(syntax): add Godot file highlighting - #232
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Support GDScript, Godot shaders, and text scene/resource files with tree-sitter parsers and focused highlight queries. Register the related extensions and cover representative tokens with tests.
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Included review availability: Your plan includes up to 8 reviews per rolling hour; 4 remain after this review. 📝 WalkthroughWalkthroughAdds Tree-sitter support for GDScript, GDShader, and Godot Resource files. The change registers language resolution, embeds highlighting queries, supports Godot extensions and aliases, updates documentation, and adds syntax-highlighting tests. ChangesGodot highlighting support
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The PR adds three Godot language registrations, but the README’s supported-language count is still inaccurate, which may mislead users about documented support. The change is otherwise mergeable with a documentation follow-up. Suggested reviewers: Sequence Diagram(s)sequenceDiagram
participant LanguageKind
participant TreeSitterParser
participant HighlightQuery
participant HighlightingAssertionHelper
LanguageKind->>TreeSitterParser: select Godot grammar
TreeSitterParser->>HighlightQuery: parse source and apply captures
HighlightQuery->>HighlightingAssertionHelper: return token classifications
HighlightingAssertionHelper->>HighlightingAssertionHelper: assert Godot highlighting
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 1
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Inline comments:
In `@README.md`:
- Line 76: Update the Tree-sitter Syntax Highlighting description to state “34
languages supported,” matching the 34 language kinds registered in the languages
module.
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📒 Files selected for processing (9)
Cargo.tomlREADME.mdsrc/syntax/languages/gdscript.rssrc/syntax/languages/gdshader.rssrc/syntax/languages/godot_resource.rssrc/syntax/languages/mod.rssrc/syntax/languages/queries/gdscript_highlights.scmsrc/syntax/languages/queries/godot_resource_highlights.scmsrc/syntax/mod.rs
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Pull request overview
Adds Tree-sitter syntax highlighting support for the Godot file family (GDScript, Godot shaders, and Godot text resources/scenes/projects) by wiring in new Tree-sitter language crates, adding highlight queries, and extending tests/docs accordingly.
Changes:
- Register new syntax languages (
gdscript,gdshader,godot-resource) and map them to Godot-related file extensions. - Add highlight queries for GDScript and Godot resources (and reuse the shader crate’s bundled highlights query).
- Extend unit tests to validate representative tokens and update README + Cargo dependencies.
Reviewed changes
Copilot reviewed 9 out of 10 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/syntax/mod.rs | Adds a new unit test that validates representative Godot token highlighting. |
| src/syntax/languages/mod.rs | Registers the new language kinds and file-extension/name resolution + updates language resolution tests. |
| src/syntax/languages/gdscript.rs | Adds the GDScript Tree-sitter language wrapper and highlight query include. |
| src/syntax/languages/gdshader.rs | Adds the Godot shader Tree-sitter language wrapper and reuses the crate’s highlight query constant. |
| src/syntax/languages/godot_resource.rs | Adds the Godot resource Tree-sitter language wrapper and highlight query include. |
| src/syntax/languages/queries/gdscript_highlights.scm | Introduces the GDScript highlight query. |
| src/syntax/languages/queries/godot_resource_highlights.scm | Introduces the Godot resource/scene/project highlight query. |
| README.md | Updates supported language documentation to include Godot and updates the headline supported-language count. |
| Cargo.toml | Adds Tree-sitter crate dependencies for Godot-related grammars. |
| Cargo.lock | Locks the added Tree-sitter dependencies. |
Suppressed comments (1)
src/syntax/languages/queries/gdscript_highlights.scm:32
- Similarly,
(lambda (parameters) @parameter)captures the whole parameter list as a single span, which can overlap punctuation and makes it hard to layer more specific captures later. Consider removing it (or narrowing to parameter identifiers once the grammar node types are confirmed).
(constructor_definition "_init" @function)
(lambda (name) @function)
(lambda (parameters) @parameter)
(call (identifier) @function)
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Capture parameter identifiers instead of whole parameter lists, and make highlight assertions safe for non-ASCII source ranges.
Summary
.gd) and Godot shaders (.gdshader,.gdshaderinc)..tscn,.tres,.godot).Test plan
cargo fmt --all -- --checkcargo test(228 tests passed)cargo clippy --all-targets --all-features -- -D warningscargo build --release.gdand.treschangesValidation details
The visual check used
Flesymeb/cod-king-me@8f65e24, which changes both GDScript and a Godot text resource. The resource fixture in the unit test also covers Godot 4StringNamesyntax (&"smg30").Summary by CodeRabbit
New Features
.gd,.gdshader,.tscn,.tres, and.godot.Tests