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

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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

feat(ast)!: remove duplicated VariableDeclarator::kind (#25319 )

2026-08-05 16:31:46 +00:00

tests/integrations

fix(semantic): skip function body bindings in parameters (#26099 )

2026-08-27 17:23:18 +00:00

Cargo.toml

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

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

CHANGELOG.md

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

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

README.md

…

README.md

Oxc Transformer Plugins

Specialized transformation plugins for common JavaScript and TypeScript patterns.

Overview

This crate provides specific transformation plugins that can be used independently or as part of the broader oxc transformation pipeline. These plugins handle common transformation needs like global variable injection and module format conversion.

Key Features

Global variable injection: Add global variables to modules
Module runner transforms: Transform modules for different execution environments
Global defines replacement: Replace compile-time constants
Composable plugins: Use individually or combine multiple plugins

Architecture

Plugin System

Each plugin implements the transformation logic for a specific use case:

Focused responsibility: Each plugin handles one type of transformation
Traverse integration: Uses oxc's traversal system for efficient AST walking
Composable: Multiple plugins can be applied in sequence
Context-aware: Access to semantic information when needed

Common Use Cases

Build-time Optimizations

Dead code elimination: Remove unreachable code paths
Constant folding: Replace compile-time constants
Environment variables: Inject environment-specific values

Module System Compatibility

Polyfill injection: Add necessary polyfills for target environments
Global shimming: Provide Node.js globals in browser environments
Format conversion: Transform between module formats

Development Tools

Debug injection: Add development-time debugging code
Hot module replacement: Support for HMR systems
Testing utilities: Inject test-specific globals

Integration Points

These plugins integrate with:

oxc_transformer: Core transformation infrastructure
oxc_traverse: AST traversal and mutation
Build tools: Webpack, Vite, Rollup, and other bundlers
CLI tools: Direct usage in command-line transformations

The plugin architecture enables extensible, composable transformations while maintaining high performance through oxc's efficient traversal system.