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oxc-guard 0389c4010e release(crates): oxc v0.146.0 (#25912 )

### 🚀 Features

- 83cb516 minifier: Improve negation of expressions in boolean context (#25755) (Armano)

### 🐛 Bug Fixes

- 134fb22 isolated-declarations: Preserve unresolved parameter types (#25909) (Dunqing)
- 526c2b3 codegen: Remove deprecated test APIs (#25889) (camc314)
- 344a9b2 codegen: Align enum template sourcemaps (#25872) (camc314)

### ⚡ Performance

- 5ef0c93 minifier: Unwrap all unary exprs without creating dummy expressions (#25891) (Armano)
- 8783524 packages/codegen: Remove loop from `growMappingBuffer` (#25886) (overlookmotel)
- b6b14c0 packages/codegen: Remove redundant branch (#25885) (overlookmotel)
- be6adf0 packages/sourcemap: Make `location` passed to `recordSourceMapping` always a number (#25884) (overlookmotel)
- f720f15 packages/codegen: Take named-mapping only code off hot path in `recordSourceMapping` (#25883) (overlookmotel)
- a734af5 packages/codegen: Remove redundant setting of `last` in `printImportAttributes` and `printIf` (#25882) (overlookmotel)
- c6e44c6 packages/codegen: Combine 2 writes in `printJSXElement` (#25881) (overlookmotel)
- 8801662 packages/codegen: Remove redundant mapping from `printParams` (#25880) (overlookmotel)

### 📚 Documentation

- 5ad330e packages/codegen: Reformat comments (#25876) (overlookmotel)

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

src

feat(ast)!: group class heritage into ClassHeritage (#25360 )

2026-08-07 14:18:59 +00:00

Cargo.toml

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

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

CHANGELOG.md

release(crates): oxc v0.144.0 (#25474 )

2026-08-10 09:57:10 +00:00

README.md

…

README.md

Oxc AST Visit

Visitor pattern implementations for traversing and mutating AST nodes.

Overview

This crate provides visitor traits and implementations for systematically traversing AST nodes. It supports both immutable visitation (Visit) and mutable transformation (VisitMut).

Key Features

Visit trait: Immutable AST traversal for analysis
VisitMut trait: Mutable AST traversal for transformations
Generated implementations: Most visitor code is auto-generated for consistency
UTF-8 to UTF-16 conversion: Special visitors for span conversion

Architecture

The visitor pattern is designed for:

Analysis: Static analysis, linting, and code inspection
Transformation: Code modification and transpilation
Consistency: Systematic traversal of all AST nodes
Performance: Efficient traversal with minimal overhead

Most visitor implementations are generated by oxc_ast_tools to ensure all AST nodes are covered and traversal is consistent.