mirror of https://github.com/oxc-project/oxc.git synced 2026-09-14 19:36:11 +08:00

Files

T

History

oxc-guard 894c8f9cd8 release(crates): oxc v0.148.0 (#26198 )

### 💥 BREAKING CHANGES

- a31567a allocator: [**BREAKING**] Make `Allocator::cursor_ptr` and `data_end_ptr` private (#26081) (overlookmotel)

### 🚀 Features

- 784e9fa minifier: Invert `!0` and `!1` in place for boolean context to `1` and `0` (#26050) (Armano)
- 1e902cc minifier: Expand fold leading assignments into the var decl (#26142) (Armano)
- 3ed4f6a minifier: Expand de morgan's optimization to allow move of `!` (#25930) (Armano)
- 5672585 parser: Attach all comments to nodes (#25944) (camc314)

### 🐛 Bug Fixes

- 4adfb4c semantic: Validate chained continue labels (#26157) (camc314)
- b874f48 ecmascript: `Math.round` only exact half ties (#26150) (camc314)
- a625378 minifier: Coerce omitted `indexOf` search argument (#26149) (camc314)
- dc7398b ecmascript: Trim trailing whitespace in string to number (#26148) (camc314)
- 243b685 transformer/object-rest: Lower multiple declarators correctly (#26147) (camc314)
- dc09a3a parser: Avoid panic on escaped string export names (#26146) (camc314)
- e412cf2 linter: Clamp invalid JS plugin locations (#26144) (camc314)
- c3dedc9 semantic: Skip function body bindings in parameters (#26099) (Dunqing)
- e74de61 transform-react: Match Babel diagnostic reporting (#26128) (Boshen)
- d5163d0 parser: Correctly classify unapplied pure annotations (#26084) (camc314)
- 8531b9b linter/plugins: Alter method for obtaining mutable `Program` when sending AST to JS plugins (#26077) (overlookmotel)
- 9b51658 regular_expression: Allow oversized decimal escape for Annex B (#26070) (leaysgur)
- c8de4df regular_expression: Reject oversized backreferences (#26055) (camc314)

### ⚡ Performance

- ac4785a diagnostics: Use fixed ANSI styles (#26130) (Boshen)
- 07a0793 packages/codegen: Flatten output in chunks (#26109) (overlookmotel)
- 487427a packages/codegen: Faster string flattening (#26108) (overlookmotel)
- 7785583 packages/codegen: Ensure indent strings are flattened (#26107) (overlookmotel)
- 0dd4db3 packages/codegen: Store mapping positions in an `Int32Array` (#26085) (overlookmotel)

2026-09-01 08:15:07 +00:00

examples

refactor(diagnostics): update oxc-miette to v4 (#25395 )

2026-08-10 07:48:02 +00:00

src

fix(isolated-declarations): preserve unresolved parameter types (#25909 )

2026-08-19 07:36:24 +00:00

tests

fix(isolated-declarations): preserve unresolved parameter types (#25909 )

2026-08-19 07:36:24 +00:00

Cargo.toml

release(crates): oxc v0.148.0 (#26198 )

2026-09-01 08:15:07 +00:00

CHANGELOG.md

release(crates): oxc v0.146.0 (#25912 )

2026-08-19 08:29:51 +00:00

README.md

docs(rust): Add comprehensive README.md documentation for all Rust crates (#12706 )

2025-08-01 18:13:46 +08:00

README.md

Oxc Isolated Declarations

TypeScript isolated declarations transformer for generating .d.ts files.

Overview

This crate implements TypeScript's isolated declarations feature, which generates TypeScript declaration files (.d.ts) from source code without requiring full type checking. This enables faster builds and better incremental compilation.

Key Features

Fast declaration generation: Generate .d.ts files without full type checking
TypeScript 5.5+ compatibility: Implements the latest isolated declarations specification
Incremental builds: Enables faster TypeScript compilation workflows
Comprehensive support: Handles classes, functions, interfaces, and complex types

Architecture

Isolated Declarations Concept

Isolated declarations allow generating TypeScript declaration files without full type inference by requiring that:

All exported functions have explicit return types
All exported variables have explicit types
Type information is locally available

Implementation Details

AST transformation: Convert implementation AST to declaration AST
Type extraction: Extract and preserve type information
Export analysis: Determine what needs to be included in declarations
Error reporting: Provide helpful diagnostics for missing type annotations

Benefits

Faster builds: No full type checking required
Incremental compilation: Each file can be processed independently
Parallel processing: Multiple files can be processed simultaneously
Simplified tooling: Easier to integrate into build systems

This implementation follows the TypeScript compiler's approach while leveraging oxc's performance-oriented architecture.