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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
perf(linter): outline diagnostic construction (#25762)
2026-08-17 05:17:33 +00:00
Cargo.toml
release(crates): oxc v0.146.0 (#25912)
2026-08-19 08:29:51 +00:00
CHANGELOG.md
release(crates): oxc v0.145.0 (#25865)
2026-08-18 22:26:40 +08:00
README.md
refactor(diagnostics): vendor oxc-miette (#25499)
2026-08-11 08:04:02 +00:00

README.md

Oxc Diagnostics

Error reporting and diagnostic utilities for JavaScript and TypeScript tooling.

Overview

This crate provides comprehensive error handling and diagnostic reporting capabilities for JavaScript and TypeScript tooling.

Key Features

  • Rich diagnostics: Detailed error messages with source context
  • Source highlighting: Syntax-highlighted error locations
  • Multiple error support: Collect and report multiple errors at once
  • Built-in renderers: Graphical terminal and machine-readable JSON output
  • Severity levels: Support for errors, warnings, and informational messages

Architecture

Diagnostic Components

  • Message: Primary error/warning description
  • Labels: Highlight specific source locations
  • Help text: Suggestions for fixing the issue
  • Source context: Display relevant source code sections

Error Flow

  1. Creation: Tools create OxcDiagnostic instances for problems
  2. Collection: DiagnosticService aggregates diagnostics
  3. Formatting: Rich terminal output with colors and context
  4. Reporting: Display to users in IDE, CLI, or other interfaces

The diagnostic system ensures consistent, high-quality error reporting across all oxc tools.

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