Commit Graph

1213 Commits

Author SHA1 Message Date
Boshen dec0a86412 fix(react-compiler): standardize diagnostics (#25702)
Standardize React Compiler diagnostics with concise titles, primary labels, actionable help, notes, structured categories, and official guidance links.

Preserve React guidance when diagnostics are surfaced through Oxlint, and refresh affected snapshots.

AI-assisted; reviewed and validated by the contributor.
2026-08-15 13:31:34 +00:00
Boshen ad963b689d refactor(react_compiler): centralize diagnostics (#25699)
Centralizes React compiler diagnostics in explicit `#[cold]` functions and removes the `[ReactCompiler]` prefix, keeping diagnostic formatting off hot paths. Updates related NAPI expectations.

AI assistance was used.
2026-08-15 05:57:29 +00:00
Boshen c5f188a608 fix(react-compiler): use Babel v1 validation defaults (#25676)
Match the public validation defaults from babel-plugin-react-compiler 1.0 while retaining explicit opt-in for newer validations.

Validated with fixture snapshots and `just ready`.

AI-assisted investigation and implementation; reviewed and understood by the contributor.
2026-08-15 01:52:58 +00:00
leaysgur db446518ca fix(napi): disable reuseWorker in browser bindings (#25640)
Fixes #25610

AI assistance: Codex was used to implement this change.
2026-08-14 11:11:20 +00:00
leaysgur c07fe7c217 feat(oxfmt): support experimentalOperatorPosition (#25643)
Fixes #16366

---

Option name requires `experimental` prefix for now.

Values are:

- `"start"`
- `"end"`(default)

This is also available on playground.
2026-08-14 08:12:16 +00:00
Boshen ce35d47499 fix(react_compiler): preserve JSX import source pragmas (#25592)
Anchor React Compiler-generated imports before the first source statement so downstream JSX transforms continue to read leading `@jsxImportSource` pragmas.

Validated with `just ready` and the transform-react binding suite. AI-assisted; the author remains responsible for review.
2026-08-14 05:37:11 +00:00
Boshen 1c4f519e36 feat(napi): add Relay transform plugin (#25503)
## What

Ports the Relay `graphql` tagged template transform (babel-plugin-relay / swc_relay) as an individual napi transform, per #24914:

- **`crates/oxc_relay`** — the core transform as its own crate (modeled on `oxc_react_compiler`): replaces `graphql` tagged templates with references to relay-compiler artifacts. Definition names are extracted textually like `swc_relay` (equivalent to `\b(fragment|mutation|query|subscription)\s+(\w+)` with `#` comments stripped; hand-rolled scanner, no regex dependency).
- **`napi/transform-relay`** (`oxc-transform-relay`) — standalone napi package copied from the `napi/transform-react` template: parse → semantic → relay traverse → codegen. Only `graphql` tags are rewritten; TypeScript/JSX syntax is preserved untouched, so the output composes with any downstream toolchain.

## Options

| option | default | behavior |
|---|---|---|
| `artifactDirectory` | unset | when set, the import path is computed lexically relative to the transformed file (babel-plugin-relay `getRelativeImportPath` semantics — swc emits absolute paths instead); unset → `./__generated__/` next to the file |
| `language` | `javascript` | `typescript` imports `Name.graphql.ts`, otherwise `Name.graphql.js` |
| `eagerEsModules` | `true` | hoisted default imports (babel-plugin-relay ≥ v17 parity); `false` emits inline `require()` (`@swc/plugin-relay` / Next.js behavior) |

A `graphql` tag with no extractable definition name produces an error diagnostic (babel throws; swc silently skips).

Not supported, documented in both READMEs: dev-mode artifact hash validation, `jsModuleFormat: "haste"`, `isDevVariableName`, swc's Next.js-specific `projects`/`pagesDir`, and GraphQL document validation.

closes #24914

---

Implemented with Claude Code.
2026-08-13 13:56:01 +00:00
camc314 0c68b7ff8b fix(estree): emit decorators on FormalParameterRest (#25582)
This PR adds support for emitting `decorators` when serializing an ast to ESTree (both with/without raw transfer).

Given the following code:
```
class C { method(@dec ...args) {} }
```

Before we emitted the following ESTree shape:
```json
"params": [
  {
    "type": "RestElement",
    "decorators": [],
    "argument": {
      "type": "Identifier",
      "decorators": [],
      "name": "args",
      "optional": false,
      "typeAnnotation": null,
    },
    "optional": false,
    "typeAnnotation": null,
    "value": null,
  }
],
```

Now we emit:
```json
"params": [
  {
    "type": "RestElement",
    "decorators": [
      {
        "type": "Decorator",
        "expression": { "type": "Identifier", "name": "dec" }
      }
    ],
    "argument": {
      "type": "Identifier",
      "decorators": [],
      "name": "args",
      "optional": false,
      "typeAnnotation": null,
    },
    "optional": false,
    "typeAnnotation": null,
    "value": null,
  },
],
```

fixes https://github.com/oxc-project/oxc/issues/18981
closes https://github.com/oxc-project/oxc/pull/24736
2026-08-13 10:43:14 +00:00
camc314 46d237c9a7 chore(codegen,parser,tasks): pin benchmark fixtures by sha (#25557)
Pin the Codegen benchmark fixture to an immutable `benchmark-files` commit. This makes benchmark inputs reproducible and prevents `main` updates from silently changing results.
2026-08-12 15:56:52 +00:00
overlookmotel e224f5f385 test(napi/parser): fix TypeScript test case splitting (#25492)
#25488 copied the code from `napi/parser` for splitting TypeScript test fixtures.

AI reviewer correctly pointed out that it was clearly broken: https://github.com/oxc-project/oxc/pull/25488#discussion_r3754102027

Turns out all this code was pointless. It looks up the error codes TypeScript provides for its fixtures, but that's not needed here. And in any case (according to Claude at least) the logic wasn't correctly ported from the Rust version, so it wouldn't work anyway.

So this PR just deletes it all.

If #25488 is merged, this will keep the 2 copies in sync with each other.
2026-08-11 14:29:15 +00:00
overlookmotel fed2b900eb refactor(napi/parser): fix TS errors under strict type checking (#25491)
Nit: Make this code compile under structer TS settings. #25488 copies this code, and this PR just keeps the 2 versions in sync.
2026-08-11 00:06:54 +00:00
Boshen 8d7f9cff3f fix(react_compiler): honor eslint suppressions (#25394)
Honor React ESLint suppressions independently of internal compiler validation settings, matching `babel-plugin-react-compiler@1.0.0`.

Closes #25392.

AI-assisted.
2026-08-10 10:42:23 +00:00
oxc-guard b6f1458dec release(crates): oxc v0.144.0 (#25474)
### 💥 BREAKING CHANGES

- a33788e ast: [**BREAKING**] Group class heritage into `ClassHeritage` (#25360) (camc314)
- 5c5cdcd ast: [**BREAKING**] Narrow `TSInterfaceHeritage::expression` to TSTypeName (#24360) (camc314)
- 6be314f ast: [**BREAKING**] Remove duplicated `VariableDeclarator::kind` (#25319) (camc314)
- 44fd320 ast: [**BREAKING**] Split TS external modules & Namespace Declarations (#25284) (camc314)

### 🚀 Features

- 9a37c41 napi: Restructure React transform options (#25326) (Boshen)
- b3c1b30 allocator: Add `ArenaVec::push_mut` (#25338) (overlookmotel)

### 🐛 Bug Fixes

- bbd6ed3 codegen: Wrap string literal in parens after directives (#25435) (overlookmotel)
- d07a293 codegen: Preserve cast parentheses in conditional tests (#25115) (camc314)
- 8b7d441 codegen: Preserve satisfies parentheses before bitwise operators (#25113) (camc314)
- e0fb2d7 minifier: Avoid unsafe return removal in labeled blocks (#25406) (Armano)
- c49f4ce parser: Preserve terminal license comments (#25400) (camc314)
- 9d19ab3 transform_react: Downgrade nonfatal compiler diagnostics (#25418) (Boshen)
- 937825c react_compiler: Disable exhaustive memo validation by default (#25417) (Boshen)
- 12937b3 parser: Reject comma expressions in class fields (#25385) (Cameron)
- 7d8a9b5 react_compiler: Preserve hook spans for React Refresh (#25393) (Boshen)
- 9e93ba6 parser: Reset auto-accessor initializer context (#25384) (camc314)
- cc2e28d parser: Reject trailing tokens in `Parser::parse_expression` (#25371) (camc314)
- 697c629 minifier: Preserve Annex B labeled-function bindings in implicit-return rewrite (#25349) (Armano)
- 4d723ca parser: Report TS1035 for quoted module names (#25305) (camc314)
- 0c9b980 semantic: Report module declaration diagnostics (#25285) (camc314)
- 2a1058a napi: Omit parser header from WASI declarations (#25254) (camc314)

### ⚡ Performance

- dd1430b semantic: Avoid allocation in class overload check (#25440) (camc314)
- e420816 parser: Optimize trailing comma tracking (#25376) (camc314)
- 6529d1a minifier: Short-circuit scope check when alternate already determines result (#25318) (Armano)

### 📚 Documentation

- fe111eb allocator: Improve doc comments for `Arena` methods (#24922) (overlookmotel)
2026-08-10 09:57:10 +00:00
renovate[bot] b91dc3a1f1 chore(deps): update napi (#25457)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
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Update |
|---|---|---|---|---|---|---|---|
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([source](https://redirect.github.com/napi-rs/napi-rs)) | [`3.8.3` →
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| pnpm.catalog.default | patch |
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---

### Release Notes

<details>
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###
[`v3.8.5`](https://redirect.github.com/napi-rs/napi-rs/compare/@napi-rs/cli@3.8.4...a5b5f277ab56e7e7e903b392b15c79da7a6520ce)

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2026-08-10 08:39:38 +00:00
Boshen 030857b509 refactor(diagnostics): update oxc-miette to v4 (#25395)
Remove the miette `Report` wrapper and update oxc-miette to v4's narrowed diagnostic and source protocol.

AI-assisted by OpenAI Codex.
2026-08-10 07:48:02 +00:00
leaysgur 465b723d04 refactor(formatter,oxfmt): unify host services as SessionServices on FormatSession (#25388)
- dispatcher
- string_embedder
- tailwind_sorter

Group these 3 together as `SessionServices`, make them available to `FormatSession`, and pass them around.
2026-08-09 14:32:10 +00:00
renovate[bot] d0b8d6ff22 chore(deps): update dependency @napi-rs/cli to v3.8.3 (#25434)
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|---|---|---|---|---|---|
| [@napi-rs/cli](https://napi.rs/)
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2026-08-09 13:25:05 +00:00
Boshen 9d19ab3080 fix(transform_react): downgrade nonfatal compiler diagnostics (#25418)
Expose nonfatal React Compiler diagnostics as warnings while preserving
fatal errors.

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2026-08-09 11:18:13 +08:00
Boshen 937825c6a6 fix(react_compiler): disable exhaustive memo validation by default (#25417)
Disable exhaustive memo dependency validation by default and align
suppression handling.

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2026-08-09 11:18:12 +08:00
Boshen 7d8a9b5f2f fix(react_compiler): preserve hook spans for React Refresh (#25393)
Fix React Refresh when used with the React Compiler N-API transform by
preserving original hook argument and binding-pattern spans through
compiler codegen.

This prevents refresh signature generation from panicking and keeps
signatures based on the original source.

Validated with `just ready` and the React transform N-API suite.

Generated with AI assistance; reviewed and validated by the contributor.
2026-08-08 08:46:36 +00:00
Boshen 4a6542bfda chore(react_compiler): configure package publishing (#25389)
Prevents the internal `oxc_react_compiler` and
`oxc_transform_react_napi` Rust crates from being published while
including the `oxc-transform-react` npm package in workspace releases.

Validated with `taplo lint`, Cargo metadata, and `just ready`.

AI assistance was used for this change.
2026-08-08 08:05:28 +00:00
camc314 a33788e13e feat(ast)!: group class heritage into ClassHeritage (#25360)
## Summary

- Groups `Class::super_class` and `Class::super_type_arguments` into `Class::heritage`.
- Introduces `ClassHeritage` containing the superclass expression and its optional TypeScript type arguments.
- Makes superclass type arguments without a superclass expression unrepresentable.

## Breaking Change

The Rust AST changes from:

```rust
pub struct Class<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub r#type: ClassType,
    pub decorators: Vec<'a, Decorator<'a>>,
    pub id: Option<BindingIdentifier<'a>>,
    #[ts]
    pub type_parameters: Option<Box<'a, TSTypeParameterDeclaration<'a>>>,
    pub super_class: Option<Expression<'a>>,
    #[ts]
    pub super_type_arguments: Option<Box<'a, TSTypeParameterInstantiation<'a>>>,
    #[ts]
    pub implements: Vec<'a, TSClassImplements<'a>>,
    pub body: Box<'a, ClassBody<'a>>,
    #[ts]
    pub r#abstract: bool,
    #[ts]
    pub declare: bool,
    pub scope_id: Cell<Option<ScopeId>>,
}
```

to:

```rust
pub struct Class<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub r#type: ClassType,
    pub decorators: Vec<'a, Decorator<'a>>,
    pub id: Option<BindingIdentifier<'a>>,
    #[ts]
    pub type_parameters: Option<Box<'a, TSTypeParameterDeclaration<'a>>>,
    pub heritage: Option<ClassHeritage<'a>>,
    #[ts]
    pub implements: Vec<'a, TSClassImplements<'a>>,
    pub body: Box<'a, ClassBody<'a>>,
    #[ts]
    pub r#abstract: bool,
    #[ts]
    pub declare: bool,
    pub scope_id: Cell<Option<ScopeId>>,
}

pub struct ClassHeritage<'a> {
    pub expression: Expression<'a>,
    #[ts]
    pub type_arguments: Option<Box<'a, TSTypeParameterInstantiation<'a>>>,
}
```

## Why?

ECMAScript defines the complete `extends` clause as `ClassHeritage`:

```text
ClassHeritage : extends LeftHandSideExpression
```

TypeScript additionally permits type arguments on the heritage expression:

```ts
class Derived extends Base<T> {}
```

Previously, the AST stored the expression and type arguments independently:

```text
Class {
    super_class: Some(Base),
    super_type_arguments: Some(<T>),
    ...
}
```

This allowed an invalid state to be constructed:

```text
Class {
    super_class: None,
    super_type_arguments: Some(<T>),
    ...
}
```

Superclass type arguments cannot exist without an `extends` expression.

The parser already treated these fields as a pair. It parsed a class heritage entry and then split its expression and type arguments into two independent fields. Builders and transforms therefore had to preserve their relationship manually.

Grouping them into `ClassHeritage` makes the syntactic dependency explicit and prevents consumers from observing or constructing contradictory class heritage.

## Class heritage forms

A class without an `extends` clause has no heritage:

```js
class Base {}
```

```text
Class {
    heritage: None,
    ...
}
```

A class extending an expression has heritage without type arguments:

```js
class Derived extends Base {}
```

```text
Class {
    heritage: Some(ClassHeritage {
        expression: Base,
        type_arguments: None,
    }),
    ...
}
```

TypeScript type arguments belong to the same heritage structure:

```ts
class Derived extends Base<T> {}
```

```text
Class {
    heritage: Some(ClassHeritage {
        expression: Base,
        type_arguments: Some(<T>),
    }),
    ...
}
```

The heritage expression may be any valid class heritage expression:

```js
class Derived extends mixin(Base) {}
class NullDerived extends null {}
```

## How to migrate

Code that previously accessed the superclass expression directly:

```rust
if let Some(super_class) = &class.super_class {
    // ...
}
```

can use the compatibility accessor:

```rust
if let Some(super_class) = class.super_class() {
    // ...
}
```

Code that needs both parts should access the grouped heritage:

```rust
if let Some(heritage) = &class.heritage {
    let expression = &heritage.expression;
    let type_arguments = heritage.type_arguments.as_deref();
}
```

Mutating consumers should update the nested fields:

```rust
if let Some(heritage) = &mut class.heritage {
    heritage.type_arguments = None;
}
```

Common migrations:

| Previous representation | New representation |
| --- | --- |
| `class.super_class` | `class.heritage.as_ref().map(\|h\| &h.expression)` or `class.super_class()` |
| `class.super_type_arguments` | `class.heritage.as_ref()?.type_arguments` or `class.super_type_arguments()` |
| `class.super_class.is_some()` | `class.heritage.is_some()` |
| Mutate `class.super_class` | Mutate `class.heritage.expression` |
| Clear `class.super_type_arguments` | Clear `class.heritage.type_arguments` |
| Pass superclass and type arguments separately to a `Class` builder | Construct and pass `ClassHeritage` |
| Clone both fields independently | Clone `class.heritage` |

```ts
superClass: Expression | null;
superTypeArguments?: TSTypeParameterInstantiation | null;
```

No `heritage` property or `ClassHeritage` node is added to the ESTree output.

fixes https://github.com/oxc-project/backlog/issues/216
2026-08-07 14:18:59 +00:00
Boshen 9a37c418cd feat(napi): restructure React transform options (#25326)
Restructure `oxc-transform-react` options around `reactCompiler` and the shared JSX/Fast Refresh configuration.

Generated with AI assistance; reviewed and validated by the contributor.
2026-08-07 08:52:04 +00:00
camc314 5c5cdcd522 feat(ast)!: narrow TSInterfaceHeritage::expression to TSTypeName (#24360)
## Summary

Narrow `TSInterfaceHeritage` from a general JavaScript `Expression` to `TSTypeName`.

```rust
pub struct TSInterfaceHeritage<'a> {
    pub type_name: TSTypeName<'a>,
    pub type_arguments: Option<Box<'a, TSTypeParameterInstantiation<'a>>>,
}
```

## Breaking Change

The Rust AST field changes from:

```rust
expression: Expression<'a>
```

to:

```rust
type_name: TSTypeName<'a>
```

## Why?

The current AST can represent shapes such as:

```ts
interface A extends foo() {}
interface A extends A + B {}
interface A extends new Foo() {}
interface A extends true {}
```

Which is an overly wide type since all of the above variants are invalid.

This PR tightens up the AST, making these invalid variants irrepresentable.

## How to migrate?

This should be a trivial migration:
1. instead of accessing `expression` on `TSInterfaceHeritage`, now access `type_name`
2. change any pattern matching on the `type_name` field to use `TypeName` (this is a smaller subset so should allow deleting code!)

closes https://github.com/oxc-project/backlog/issues/215
2026-08-07 06:00:42 +00:00
camc314 6be314f226 feat(ast)!: remove duplicated VariableDeclarator::kind (#25319)
## Summary

- Removes `VariableDeclarator::kind`.
- Makes `VariableDeclaration::kind` the single source of truth for every declarator in its declaration list.
- Makes contradictory parent and child declaration kinds unrepresentable.

## Breaking Change

The Rust AST changes from:

```rust
pub struct VariableDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub kind: VariableDeclarationKind,
    pub declarations: Vec<'a, VariableDeclarator<'a>>,
    #[ts]
    pub declare: bool,
}

pub struct VariableDeclarator<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    #[estree(skip)]
    pub kind: VariableDeclarationKind,
    #[estree(via = VariableDeclaratorId)]
    pub id: BindingPattern<'a>,
    #[ts]
    #[estree(skip)]
    pub type_annotation: Option<Box<'a, TSTypeAnnotation<'a>>>,
    pub init: Option<Expression<'a>>,
    #[ts]
    pub definite: bool,
}
```

to:

```rust
pub struct VariableDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub kind: VariableDeclarationKind,
    pub declarations: Vec<'a, VariableDeclarator<'a>>,
    #[ts]
    pub declare: bool,
}

pub struct VariableDeclarator<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    #[estree(via = VariableDeclaratorId)]
    pub id: BindingPattern<'a>,
    #[ts]
    #[estree(skip)]
    pub type_annotation: Option<Box<'a, TSTypeAnnotation<'a>>>,
    pub init: Option<Expression<'a>>,
    #[ts]
    pub definite: bool,
}
```

## Why?

A variable declaration has one declaration kind shared by every declarator in its declaration list:

```js
const first = 1, second = 2;
```

Previously, the AST stored that kind on both the parent declaration and every child declarator:

```text
VariableDeclaration {
    kind: Const,
    declarations: [
        VariableDeclarator { kind: Const, ... },
        VariableDeclarator { kind: Const, ... },
    ],
}
```

This allowed contradictory ASTs to be constructed:

```text
VariableDeclaration {
    kind: Const,
    declarations: [
        VariableDeclarator { kind: Var, ... },
    ],
}
```

Different consumers read different copies:

- Code generation used `VariableDeclaration::kind`.
- Semantic binding used `VariableDeclarator::kind`.
- Lint rules, transforms, and minifier passes used a mixture of both.

As a result, one AST could be emitted as `const` while its binding was treated as function-scoped `var`.

Transforms also had to keep the copies synchronized manually. For example, const-to-let normalization updated the parent and then looped through every declarator to update each child. Explicit resource management performed similar paired mutations for `using` declarations.

Keeping the kind only on `VariableDeclaration` removes this synchronization requirement and prevents consumers from observing conflicting declaration semantics.

## Declaration forms

The declaration kind now belongs exclusively to the node that owns the declaration list:

```js
let value;
```

```text
VariableDeclaration {
    kind: Let,
    declarations: [
        VariableDeclarator { id: value, ... },
    ],
}
```

Multiple declarators share the same parent kind:

```js
const first = 1, second = 2;
```

```text
VariableDeclaration {
    kind: Const,
    declarations: [
        VariableDeclarator { id: first, ... },
        VariableDeclarator { id: second, ... },
    ],
}
```

## How to migrate

Code that previously read the kind from a declarator:

```rust
if declarator.kind.is_const() {
    // ...
}
```

should now read it from the containing declaration:

```rust
if declaration.kind.is_const() {
    // ...
}
```

Consumers operating through an AST node store should retrieve the parent `VariableDeclaration`:

```rust
let AstKind::VariableDeclaration(declaration) =
    nodes.parent_kind(declarator.node_id())
else {
    unreachable!();
};

let kind = declaration.kind;
```

Common migrations:

| Previous representation | New representation |
| --- | --- |
| `declarator.kind` | Containing `declaration.kind` |
| Match `VariableDeclarator::kind` during semantic binding | Read the parent `VariableDeclaration` from ancestry |
| Pass `kind` to `VariableDeclarator::new` | Remove the `kind` argument |
| Update parent and every child kind | Update only `VariableDeclaration::kind` |
| Recover kind after detaching a declarator | Capture or pass the parent kind before detaching it |
| Inspect a symbol’s declarator kind in lint rules | Resolve its parent declaration through the node store |

When constructing declarators, use the generated kindless `VariableDeclarator` builders and place them inside a `VariableDeclaration` carrying the required kind.

fixes https://github.com/oxc-project/backlog/issues/237
2026-08-05 16:31:46 +00:00
camc314 44fd320324 feat(ast)!: split TS external modules & Namespace Declarations (#25284)
## Summary

- Splits `TSModuleDeclaration` into two dedicated declaration nodes:
  - `TSExternalModuleDeclaration` for string-literal modules and module augmentations.
  - `TSNamespaceDeclaration` for identifier-based `module` and `namespace` declarations.
- Removes `TSModuleDeclaration`, `TSModuleDeclarationName`, `TSModuleDeclarationBody`, and `TSModuleDeclarationKind`.
- Makes invalid combinations of names, bodies, and declaration kinds unrepresentable.
- Ensures only namespace declarations introduce a normal binding.
- Updates all AST consumers, generators, traversal, formatting, code generation, semantic analysis, lint rules, transforms, and serialization.
- Keeps normal and eager-raw ESTree output compatible: both declarations remain `TSModuleDeclaration` nodes.
- Allows experimental lazy raw deserialization to expose the two new node types directly.

## Breaking Change

The Rust AST changes from:

```rust
pub enum Declaration<'a> {
    VariableDeclaration(Box<'a, VariableDeclaration<'a>>) = 32,
    FunctionDeclaration(Box<'a, Function<'a>>) = 33,
    ClassDeclaration(Box<'a, Class<'a>>) = 34,

    TSTypeAliasDeclaration(Box<'a, TSTypeAliasDeclaration<'a>>) = 35,
    TSInterfaceDeclaration(Box<'a, TSInterfaceDeclaration<'a>>) = 36,
    TSEnumDeclaration(Box<'a, TSEnumDeclaration<'a>>) = 37,
    TSModuleDeclaration(Box<'a, TSModuleDeclaration<'a>>) = 38,
    TSGlobalDeclaration(Box<'a, TSGlobalDeclaration<'a>>) = 39,
    TSImportEqualsDeclaration(Box<'a, TSImportEqualsDeclaration<'a>>) = 40,
}

pub struct TSModuleDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub id: TSModuleDeclarationName<'a>,
    pub body: Option<TSModuleDeclarationBody<'a>>,
    pub kind: TSModuleDeclarationKind,
    pub declare: bool,
    pub scope_id: Cell<Option<ScopeId>>,
}
```

to:

```rust
pub enum Declaration<'a> {
    VariableDeclaration(Box<'a, VariableDeclaration<'a>>) = 32,
    FunctionDeclaration(Box<'a, Function<'a>>) = 33,
    ClassDeclaration(Box<'a, Class<'a>>) = 34,

    TSTypeAliasDeclaration(Box<'a, TSTypeAliasDeclaration<'a>>) = 35,
    TSInterfaceDeclaration(Box<'a, TSInterfaceDeclaration<'a>>) = 36,
    TSEnumDeclaration(Box<'a, TSEnumDeclaration<'a>>) = 37,
    TSExternalModuleDeclaration(Box<'a, TSExternalModuleDeclaration<'a>>) = 38,
    TSNamespaceDeclaration(Box<'a, TSNamespaceDeclaration<'a>>) = 39,
    TSGlobalDeclaration(Box<'a, TSGlobalDeclaration<'a>>) = 40,
    TSImportEqualsDeclaration(Box<'a, TSImportEqualsDeclaration<'a>>) = 41,
}

pub struct TSExternalModuleDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub id: StringLiteral<'a>,
    pub body: Option<Box<'a, TSModuleBlock<'a>>>,
    pub declare: bool,
    pub scope_id: Cell<Option<ScopeId>>,
}

pub struct TSNamespaceDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub id: BindingIdentifier<'a>,
    pub body: TSNamespaceDeclarationBody<'a>,
    pub kind: TSNamespaceDeclarationKind,
    pub declare: bool,
    pub scope_id: Cell<Option<ScopeId>>,
}

pub enum TSNamespaceDeclarationBody<'a> {
    TSNamespaceDeclaration(Box<'a, TSNamespaceDeclaration<'a>>) = 0,
    TSModuleBlock(Box<'a, TSModuleBlock<'a>>) = 1,
}

pub enum TSNamespaceDeclarationKind {
    Module = 0,
    Namespace = 1,
}
```

The corresponding inherited `Statement` variants, `AstKind` variants, builders, and visitor methods have also changed.

## Why?

`TSModuleDeclaration` previously represented two declaration families with different syntax and semantics:

```ts
declare module "foo" {}
declare module "*.css";

module Foo {}
namespace Foo {}
namespace Foo.Bar {}
```

The shared representation allowed invalid states such as:

- A namespace with a string-literal name.
- An external module with an identifier name.
- An identifier namespace without a body.
- A dotted external module.
- An external module containing another module declaration as its body.
- A declaration whose `kind` disagreed with its name.

Consumers also had to inspect `id` before determining whether the node introduced a binding or represented an external module.

The two declaration families have stronger independent invariants:

### External modules

- Always have a string-literal name.
- Never introduce a normal binding identifier.
- May omit their body.
- Cannot use dotted names.
- Use module-body import and export rules.

### Namespace declarations

- Always have a binding identifier.
- Always have a body.
- May contain nested namespace declarations for dotted names.
- Explicitly preserve the `module` or `namespace` spelling.
- Introduce a namespace/module symbol.
- Use namespace-body restrictions.

Dedicated nodes encode these differences directly.

## Declaration forms

External modules use `TSExternalModuleDeclaration`:

```ts
declare module "foo" {}
declare module "*.css";
module "foo" {}
```

Identifier-based declarations use `TSNamespaceDeclaration`:

```ts
module Foo {}
namespace Foo {}
```

Dotted namespaces are represented as nested namespace declarations:

```ts
namespace Foo.Bar {}
```

```rust
TSNamespaceDeclaration {
    id: Foo,
    body: TSNamespaceDeclarationBody::TSNamespaceDeclaration(
        TSNamespaceDeclaration {
            id: Bar,
            body: TSNamespaceDeclarationBody::TSModuleBlock(...),
            // ...
        }
    ),
    // ...
}
```

Only `TSExternalModuleDeclaration::body` is optional.

## ESTree compatibility

Normal serialization and eager raw deserialization continue to emit the existing ESTree shape:

```ts
interface TSModuleDeclaration {
  type: "TSModuleDeclaration";
  id: BindingIdentifier | StringLiteral | TSQualifiedName;
  body: TSModuleBlock | null;
  kind: "module" | "namespace";
  declare: boolean;
  global: false;
}
```

Dotted namespaces continue to serialize as a single `TSModuleDeclaration` with a `TSQualifiedName`.

Experimental lazy raw deserialization is not compatibility-preserving. It now exposes `TSExternalModuleDeclaration` and `TSNamespaceDeclaration` directly, with separate constructors, layouts, and visitor type IDs.

## How to migrate

Code that previously matched all forms through one variant:

```rust
if let Declaration::TSModuleDeclaration(declaration) = declaration {
    // ...
}
```

should now match the required declaration family:

```rust
match declaration {
    Declaration::TSExternalModuleDeclaration(declaration) => {
        // String-literal external module
    }
    Declaration::TSNamespaceDeclaration(declaration) => {
        // Identifier-based module or namespace
    }
    _ => {}
}
```

The same applies to `Statement` and `AstKind`:

```rust
Statement::TSExternalModuleDeclaration(declaration)
Statement::TSNamespaceDeclaration(declaration)

AstKind::TSExternalModuleDeclaration(declaration)
AstKind::TSNamespaceDeclaration(declaration)
```

Common field migrations:

| Previous representation | New representation |
| --- | --- |
| `TSModuleDeclarationName::StringLiteral(id)` | `TSExternalModuleDeclaration::id` |
| `TSModuleDeclarationName::Identifier(id)` | `TSNamespaceDeclaration::id` |
| `body: None` | Only valid on `TSExternalModuleDeclaration` |
| `TSModuleDeclarationBody::TSModuleBlock` | External `body` or `TSNamespaceDeclarationBody::TSModuleBlock` |
| `TSModuleDeclarationBody::TSModuleDeclaration` | `TSNamespaceDeclarationBody::TSNamespaceDeclaration` |
| `TSModuleDeclarationKind::Module` | External module, or `TSNamespaceDeclarationKind::Module` |
| `TSModuleDeclarationKind::Namespace` | `TSNamespaceDeclarationKind::Namespace` |
| Inspect `id` to determine binding behavior | Match `TSNamespaceDeclaration` |
| `declaration.id()` for string modules | Now returns `None` |
| `visit_ts_module_declaration` | `visit_ts_external_module_declaration` or `visit_ts_namespace_declaration` |

When constructing nodes, use the generated `TSExternalModuleDeclaration` or `TSNamespaceDeclaration` builders rather than recreating the previous shared representation.

fixes https://github.com/oxc-project/backlog/issues/218
2026-08-05 14:37:35 +00:00
camc314 2a1058a8d1 fix(napi): omit parser header from WASI declarations (#25254)
## Summary

- generate the parser WASI declaration without the root package's custom DTS header
- remove the resulting invalid `./generated/visit/visitor.d.ts` import from `parser.wasi.d.cts`
- allow `@napi-rs/cli` 3.8.2 to validate and publish the WASI binding package

Failed job: https://github.com/oxc-project/oxc/actions/runs/30810594648/job/91677775732

The custom header describes the root `oxc-parser` JavaScript wrapper (`Visitor` and `visitorKeys`), not the raw platform binding package, so it should not be present in the WASI binding declaration.
2026-08-03 13:26:31 +00:00
oxc-guard 45a17c25d1 release(crates): oxc v0.143.0 (#25250)
### 💥 BREAKING CHANGES

- 4120da0 semantic: [**BREAKING**] Return borrowed JSDoc so the parse cache works (#25186) (Connor Shea)
- f0a41c8 allocator: [**BREAKING**] Remove `ArenaBox::dangling` method (#25236) (overlookmotel)
- 067da8c ast: [**BREAKING**] Store single parameter in `TSIndexSignature::parameter` (#25154) (camc314)
- a0c7788 ast: [**BREAKING**] Change `TSIndexSignatureName::name` to `Ident` (#25150) (camc314)
- 1bdedd1 ast: [**BREAKING**] Introduce `ExportDeclaration`, `ExportFromDeclaration` (#25095) (camc314)
- c917f20 ast: [**BREAKING**] Introduce `ArrowFunctionBody` enum (#24987) (camc314)
- 7e1199c ast: [**BREAKING**] Remove conversion to `Box` from AST builder methods (#25038) (overlookmotel)

### 🚀 Features

- 3c8312e allocator: Make `Box` `Send` + `Sync` when the type it contains is (#25242) (overlookmotel)
- cb5bc08 ast: Derive `GetSpan` for `Comment` (#25147) (leaysgur)
- 8541e18 ast_tools: Generate minifier scope collector (#25088) (camc314)
- 5acdae2 ecmascript: Skip transparent TS expressions (#25072) (camc314)
- 85d0f4d napi: Add React Compiler transform binding (#24934) (Boshen)
- 70d6ece minifier: Fold safe integer exponentiation (#25009) (Dunqing)
- 73fc747 minifier: Enable termination statement optimization for do while (#24921) (Armano)
- 5eadfdb minifier: Fold safe integer division and remainder (#24981) (Dunqing)

### 🐛 Bug Fixes

- 6c9ee14 minifier: Preserve if-chain idempotency and correct side effects when alternate should not be moved (#25041) (Armano)
- 8a47ff3 ecmascript: Do not treat lone-surrogate strings as constants (#25084) (Dunqing)
- 468b970 isolated-declarations: Strip re-export attributes (#25090) (camc314)
- a70035d parser: Report export imports in namespaces (#25086) (camc314)
- 5d8ccf5 react_compiler: Preserve nonfatal diagnostics (#25066) (Boshen)
- d349e4a react_compiler: Match eslint suppression gating (#25068) (Boshen)
- 0dc16ba react_compiler: Track catch block declarations (#25067) (Boshen)
- e6734a5 minifier: Fold typeof comparisons with known object strings (#25017) (Dunqing)
- 3a9d5a5 minifier: Keep `typeof foo == ['object']` as-is (#24941) (sapphi-red)
- 10ec276 ast: Custom AST builder methods take `IntoIn<ArenaBox>` where child method does (#25033) (overlookmotel)
- fbe8d31 minifier: Respect targets when folding RegExp source (#24790) (Dunqing)

### ⚡ Performance

- fb402b0 minifier: Stop re-deriving printed numeric spellings (#25103) (Dunqing)
- 7251e52 react_compiler: Avoid large types on stack (#25037) (overlookmotel)
- e07718f isolated_declarations: Avoid large types on stack (#25036) (overlookmotel)
- 9fb1e3e transformer: Avoid large types on stack (#25035) (overlookmotel)
- 8b80f8b parser: Avoid large types on stack (#25034) (overlookmotel)

### 📚 Documentation

- 2ea0aa9 ast: Correct grammar in AST builder methods doc comments (#25173) (overlookmotel)
2026-08-03 11:07:37 +00:00
camc314 253075e0cb fix(playground): include generated runtime files (#25246)
- add an explicit `files` allowlist for `oxc-playground`
- include generated JS/types, WASM binaries, and worker modules
- fix `publint` failures under pnpm 11.17.0 affecting oxc-project/playground#414
2026-08-03 10:28:30 +00:00
renovate[bot] b937e3e2f1 chore(deps): update napi (#25019)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Adoption](https://docs.renovatebot.com/merge-confidence/) |
[Passing](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) | Type |
Update |
|---|---|---|---|---|---|---|---|
| [@napi-rs/cli](https://napi.rs/)
([source](https://redirect.github.com/napi-rs/napi-rs)) | [`3.7.4` →
`3.8.2`](https://renovatebot.com/diffs/npm/@napi-rs%2fcli/3.7.4/3.8.2) |
![age](https://developer.mend.io/api/mc/badges/age/npm/@napi-rs%2fcli/3.8.2?slim=true)
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| pnpm.catalog.default | minor |
| [napi](https://redirect.github.com/napi-rs/napi-rs) | `3.11.0` →
`3.12.0` |
![age](https://developer.mend.io/api/mc/badges/age/crate/napi/3.12.0?slim=true)
|
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| workspace.dependencies | minor |
| [napi-build](https://redirect.github.com/napi-rs/napi-rs) | `2.3.2` →
`2.4.0` |
![age](https://developer.mend.io/api/mc/badges/age/crate/napi-build/2.4.0?slim=true)
|
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|
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| workspace.dependencies | minor |
| [napi-derive](https://redirect.github.com/napi-rs/napi-rs) | `3.6.0` →
`3.6.2` |
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| workspace.dependencies | patch |

---

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<details>
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[Compare
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###
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[Compare
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###
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2026-08-03 11:21:03 +01:00
camc314 067da8c4e7 feat(ast)!: store single parameter in TSIndexSignature::parameter (#25154) 2026-07-31 20:35:37 +00:00
camc314 1bdedd11ca feat(ast)!: introduce ExportDeclaration, ExportFromDeclaration (#25095)
## Summary

Split the overloaded Rust `ExportNamedDeclaration` into syntax-specific AST nodes:

- `ExportDeclaration` for exported declarations
- `ExportNamedDeclaration` for local exports
- `ExportFromDeclaration` for re-exports

## Breaking Change

The Rust AST changes from:

```rust
pub struct ExportNamedDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub declaration: Option<Declaration<'a>>,
    pub specifiers: Vec<'a, ExportSpecifier<'a>>,
    pub source: Option<StringLiteral<'a>>,
    pub export_kind: ImportOrExportKind,
    pub with_clause: Option<Box<'a, WithClause<'a>>>,
}

pub enum ModuleDeclaration<'a> {
    // ...
    ExportNamedDeclaration(Box<'a, ExportNamedDeclaration<'a>>),
    // ...
}
```

to:

```rust
pub struct ExportDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub declaration: Declaration<'a>,
}

pub struct ExportNamedDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub specifiers: Vec<'a, ExportSpecifier<'a>>,
    pub export_kind: ImportOrExportKind,
}

pub struct ExportFromDeclaration<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub specifiers: Vec<'a, ExportSpecifier<'a>>,
    pub source: StringLiteral<'a>,
    pub export_kind: ImportOrExportKind,
    pub with_clause: Option<Box<'a, WithClause<'a>>>,
}

pub enum ModuleDeclaration<'a> {
    // ...
    ExportDeclaration(Box<'a, ExportDeclaration<'a>>),
    ExportNamedDeclaration(Box<'a, ExportNamedDeclaration<'a>>),
    ExportFromDeclaration(Box<'a, ExportFromDeclaration<'a>>),
    // ...
}
```

## Why?

The previous node represented three distinct syntax forms through optional and mutually exclusive fields:

```text
export const value = 1;       -> ExportDeclaration
export { value };             -> ExportNamedDeclaration
export { value } from "mod";  -> ExportFromDeclaration
```

This allowed invalid combinations such as declarations with specifiers or sources, and import attributes without a source. The new nodes make these states unrepresentable and remove repeated `declaration`/`source` branching from consumers.

## How to migrate

Match the syntax-specific `ModuleDeclaration`, `Statement`, or `AstKind` variant instead of inspecting optional fields. Generated builders, visitors, traversal ancestors, and formatter wrappers now expose corresponding APIs for all three nodes.

Common field migrations:

| Previous representation | New representation |
| --- | --- |
| `declaration: Some(declaration)` | `ExportDeclaration { declaration }` |
| `declaration.as_ref()` | `&export.declaration` |
| `source.is_none()` for local exports | Match `ExportNamedDeclaration` |
| `source: Some(source)` | `ExportFromDeclaration { source }` |
| `source.as_ref().unwrap()` | `&export.source` |
| `with_clause` | Only available on `ExportFromDeclaration` |
| Stored `export_kind` on exported declarations | `ExportDeclaration::export_kind()` |
| `ExportNamedDeclaration::boxed_plain_declaration(...)` | `ExportDeclaration::boxed(...)` |
| `ExportNamedDeclaration::boxed(..., None, specifiers, None, ...)` | `ExportNamedDeclaration::boxed(..., specifiers, ...)` |
| `ExportNamedDeclaration::boxed(..., None, specifiers, Some(source), ...)` | `ExportFromDeclaration::boxed(..., specifiers, source, ...)` |

closes https://github.com/oxc-project/backlog/issues/219
2026-07-31 10:25:47 +00:00
camc314 c917f204a7 feat(ast)!: introduce ArrowFunctionBody enum (#24987)
## Summary

- Introduces `ArrowFunctionBody` to represent concise expression and block bodies explicitly.
- Removes the `ArrowFunctionExpression::expression` boolean.
- Makes invalid arrow body combinations unrepresentable.

## Breaking Change

The Rust AST changes from:

```rust
pub struct ArrowFunctionExpression<'a> {
    pub expression: bool,
    pub body: Box<'a, FunctionBody<'a>>,
}
```

to:

```rust
pub enum ArrowFunctionBody<'a> {
    FunctionBody(Box<'a, FunctionBody<'a>>) = 64,
    INHERIT(Expression<'a>),
}

pub struct ArrowFunctionExpression<'a> {
    pub body: ArrowFunctionBody<'a>,
}
```

Concise arrow bodies are now stored directly as expressions instead of synthetic `FunctionBody` and `ExpressionStatement` nodes. Block bodies continue to use `FunctionBody`.

## Why?

The previous representation required consumers to maintain this implicit invariant:

```text
expression == true
→ no directives
→ exactly one statement
→ that statement is an ExpressionStatement
```

Invalid combinations could cause panics, skipped work, or fallback behavior. The enum encodes the grammar directly and makes those invalid states unrepresentable.

Concise expressions also now have `ArrowFunctionExpression` as their direct traversal ancestor, without synthetic `FunctionBody` or `ExpressionStatement` nodes.

## How to migrate

Use the arrow body accessors or match on `ArrowFunctionBody` rather than inspecting `expression` and synthetic statements.

Common field migrations:

| Previous representation | New representation |
| --- | --- |
| `arrow.expression` | `arrow.is_expression()` |
| `arrow.get_expression()` | `arrow.get_expression()` |
| `&arrow.body.statements` | `arrow.get_function_body().map(\|body\| &body.statements)` |
| `&mut arrow.body.statements` | `arrow.get_function_body_mut().map(\|body\| &mut body.statements)` |
| Synthetic expression statement in `arrow.body` | Direct `ArrowFunctionBody` expression variant |
| `arrow.body = function_body` | `arrow.body = ArrowFunctionBody::FunctionBody(function_body)` |
| Expression-to-block conversion | Create a `FunctionBody` containing a return statement |
| Block-to-expression conversion | Assign the expression directly to `arrow.body` |
| Builder `(expression, body)` arguments | Pass a single `ArrowFunctionBody` |

closes https://github.com/oxc-project/backlog/issues/211
2026-07-29 13:32:32 +00:00
Boshen 5d8ccf510b fix(react_compiler): preserve nonfatal diagnostics (#25066)
Preserves nonfatal React Compiler diagnostics and covers warning bailouts through the N-API binding.

AI-assisted.
2026-07-29 13:09:20 +00:00
Boshen d349e4a449 fix(react_compiler): match eslint suppression gating (#25068)
Matches React Compiler ESLint suppression gating for internal validation options.

AI-assisted.
2026-07-29 12:41:00 +00:00
Boshen 8b7420a7e8 refactor(transformer): decouple React Compiler (#25065)
Moves React Compiler integration out of `oxc` and `oxc_transformer` into the dedicated binding.

AI-assisted.
2026-07-29 09:46:48 +00:00
Boshen 85d0f4dd1f feat(napi): add React Compiler transform binding (#24934)
Adds the `oxc-transform-react` N-API binding and its public CI and publish workflows.

AI-assisted.
2026-07-29 09:08:58 +00:00
oxc-guard[bot] fc702c1fa9 release(crates): oxc v0.142.0 (#24977)
### 💥 BREAKING CHANGES

- 1ac5ac7 ast: [**BREAKING**] Tighten bound on `AstBuild` trait (#24925)
(overlookmotel)

### 🚀 Features

- c7c5696 minifier: Fold parenthesized boolean ternary tests (#24968)
(Dunqing)
- 82c5806 minifier: Fold sequence branches in boolean ternaries (#24943)
(Dunqing)
- cc623d9 ast_visit: Add VisitJsMut visitor (#24828) (Boshen)
- b31713a minifier: Add new IsTerminated trait and use it in exit-point
optimization (#24950) (Armano)
- e9e0f24 minifier: Shorten integer zero comparisons (#24933) (Dunqing)
- 34f5559 minifier: Convert switch with one case to if statement
(#24611) (Armano)
- 9107e74 str: Add `static_str!` macro (#24887) (overlookmotel)
- 4d6f623 parser: Emit error for type args in JS files (#24896)
(camc314)
- ec08afc ast: Re-export `Ident` from `oxc_ast` crate (#24861)
(overlookmotel)
- 73cfdfa oxc: Re-export `oxc_str` types from `oxc` crate (#24860)
(overlookmotel)
- 11f5d1f ast_visit: Add `Utf8ToUtf16::convert_program_and_comments`
(#24859) (overlookmotel)

### 🐛 Bug Fixes

- cb5acfb minifier: Optimize termination statements in labeled
statements (#24813) (Armano)
- 4618300 minifier: Avoid longer numeric constant folds (#24875)
(Dunqing)
- f7971f1 minifier: Keep side effects in typeof comparisons (#24940)
(sapphi-red)
- 4597d6f minifier: Keep side effects when compressing `== true` to `==
1` (#24939) (sapphi-red)
- c3a48df minifier: Keep side effects values in template literals
(#24938) (sapphi-red)
- e19f183 minifier: Keep side effects when folding `Number` call
(#24937) (sapphi-red)
- 9d7745a react-compiler: Preserve warning bailouts (#24935) (Boshen)
- 0126aba codegen: Preserve orphaned file coverage comments (#24815)
(Dunqing)
- 9fbbaf8 parser: Clarify return in class static blocks (#24899)
(camc314)
- e7d5c78 str: Fix hygiene of `format_ident!` and `format_str!` macros
(#24886) (overlookmotel)
- 07e9acc ecmascript: Keep side effects in parent of `toString` calls
(#24846) (sapphi-red)
- 16a40ad ecmascript: Detect side effects in unused arguments to
`charCodeAt` (#24845) (sapphi-red)
- 5b4ae54 parser: Use specific for-await diagnostic (#24856) (camc314)
- ffcc33a parser: Report for-await in non-async functions (#24855)
(camc314)
- df230d0 minifier: Avoid reordering this in nested class keys (#24785)
(Dunqing)
- d24b76b minifier: Isolate derived constructor this state (#24784)
(Dunqing)
- 582805d parser: Parse unary conditional after satisfies (#24807)
(Boshen)
- 23b904f minifier: Preserve default parameter side effects (#24791)
(Dunqing)
- 3048594 parser: Use correct diagnostic for `await using` in bare
switch case (#24798) (camc314)
- e80574f estree: Handle empty spans serializing `ImportMeta` and
`NewTarget` (#24775) (overlookmotel)
- 4b12840 minifier: Do not fold a `-0` ternary branch to `+a` (loses the
sign) (#23637) (Jerry Zhao)
- 133bb35 ecmascript: Detect side effects of `foo().#bar` correctly when
PropertyReadSideEffects::None (#24769) (sapphi-red)

### ⚡ Performance

- a086d91 ecmascript: Avoid number literal allocations (#24889)
(Dunqing)
- 98f2ecb react_compiler: Compare value set pointers before probing in
state merge (#24805) (Marius Schulz)
- b287f29 estree: Avoid ident hash calculations when serializing
(#24774) (overlookmotel)

### 📚 Documentation

- 4d2e2bf ast: Fix incorrect return value in `common_js_require` docs
(#24945) (connorshea)
- b539e74 estree: Document custom serializers for `ImportMeta` and
`NewTarget` (#24777) (overlookmotel)

Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
2026-07-27 23:07:40 +08:00
overlookmotel 11f5d1f192 feat(ast_visit): add Utf8ToUtf16::convert_program_and_comments (#24859)
Add a method `Utf8ToUtf16::convert_program_and_comments`, and use it in a couple of places.

This is marginally faster than `convert_program` followed by `convert_comments`, as it avoids branching on the same condition twice.
2026-07-23 18:40:55 +00:00
overlookmotel e80574fdf0 fix(estree): handle empty spans serializing ImportMeta and NewTarget (#24775)
Follow-on after #24557. Handle when `ImportMeta` / `NewTarget` has an empty span (`SPAN`). This code path is not exercised at present, but it seems a good idea to be prepared for when we may serialize AST after transformation.
2026-07-22 08:05:57 +00:00
oxc-guard[bot] 14533a3dc1 release(crates): oxc v0.141.0 (#24714)
### 💥 BREAKING CHANGES

- 54cc121 ast: [**BREAKING**] Split `MetaProperty` into `ImportMeta` and
`NewTarget` (#24557) (camc314)

### 🚀 Features

- 4c71560 parser: More friendly error for spread element in dynamic
imports (#24705) (sapphi-red)
- 7b045cd minfier: Drop last break from last switch case (#24673)
(Armano)
- 7d3c178 minifier: Remove unreachable recursive functions (#24125)
(Dunqing)
- 94f99b3 ast: Allow `NONE` to be passed to AST builder methods where
`Option<ArenaVec>` is expected (#24629) (overlookmotel)
- 77230c5 ast: Accept arrays for `ArenaVec` params of AST builder
methods (#24621) (overlookmotel)
- f08b152 allocator: Implement `FromIn` for array to `Vec` conversion
(#24620) (overlookmotel)
- 2338c13 track-memory-allocations: Track heap deallocs, alloc bytes,
and peak growth (#24619) (Boshen)
- 7aa4739 syntax,transformer: Move JSX entity decoder to `oxc_syntax`
(#24617) (camc314)
- 2b097c4 str: Export `Str` as `ArenaStr` (#24604) (overlookmotel)
- 3acf4c1 minifier: Expand switch optimiation to remove empty cases
(#24520) (Armano)
- 129b759 parser: Improve diagnostics for unparenthesized LHS on
exponential expr (#24569) (camc314)
- 4d0c601 minifier: Fold arithmetic over undefined and null operands
(#24485) (Dunqing)
- 91541dd minifier: Drop empty switch statements  (#24527) (Armano)
- d05224d ast_visit: Generate VisitJs visitor that skips TypeScript
type-space (#24499) (Boshen)
- 3d22307 parser: Add `ParseOptions::enable_ident_hashes` (#24491)
(Boshen)

### 🐛 Bug Fixes

- 64c2241 minifier: Align class heritage removal with assumptions
(#24533) (Dunqing)
- 48b59f4 parser: Span ambient generator diagnostics (#24711) (camc314)
- e750a82 ecmascript: Fix false negative for may_have_side_effects on
dynamic property access (#24709) (sapphi-red)
- f145d73 minifier: Guard reordered identifier reads (#24698) (Dunqing)
- a2ef382 isolated-declarations: Reject `window.Symbol` as global symbol
reference (#24689) (camc314)
- b1bcf72 minifier: Invalidate facts for redeclared bindings (#24658)
(Dunqing)
- 921b834 minifier: Don't treat a conditionally-assigned var as
write-once (#24650) (Dunqing)
- 061af1f minifier: Avoid stale pure function summaries (#24636)
(Dunqing)
- 40c2f43 allocator: `Vec::from_array_in` do not allocate zero-length
array (#24628) (overlookmotel)
- 70994ae codegen: Preserve comments before expression operands (#24510)
(Dunqing)
- 7b4baff parser: Reject new import member access (#23459) (camc314)
- 128b385 minifier: Clippy warning with no-debug-assertions (#24547)
(camc314)
- 8421feb parser: Use first `as` span for imported name (#24537)
(leaysgur)
- c517aa0 parser: Reject invalid accessor assertions (#24504) (camc314)

### ⚡ Performance

- 884d9eb parser: Pre-size cover-grammar assignment target buffers
(#24683) (Boshen)
- d3f07a0 diagnostics: Box OxcDiagnosticInner to reduce binary size
(#24665) (Boshen)
- bcc9de0 parser: Defer diagnostic creation until parse exit (#24663)
(Boshen)
- c35d8ab allocator: Mark `ReplaceWith` panic path cold (#24515)
(camc314)
- ba65790 semantic, allocator: Branchless `clone_in` for semantic IDs
(#24564) (overlookmotel)
- 747feec parser: Build AST nodes with the AST builder instead of
cloning (#24540) (Boshen)
- ba35a0d react_compiler: Use IndexVec for dense id-keyed maps (#24549)
(Boshen)
- b685062 react_compiler: Keep small hot-path collections inline
(#24514) (Marius Schulz)
- a149e95 transformer: Outline rare expression exits (#24512) (camc314)
- 7808a6e react_compiler: Make aliasing effects cheap to intern and
clone (#24506) (Marius Schulz)
- 3a36f2a react_compiler: Store AbstractValue reasons as a u16 bitmask
(#24480) (Boshen)
- 1c96753 react_compiler: Use FxHashMap for the lookup-only aliasing
node map (#24490) (Boshen)

Co-authored-by: Cameron <cameron.clark@hey.com>
2026-07-21 16:09:41 +01:00
overlookmotel cef20b5794 docs(napi/parser): remove erroneous comment (#24730)
Remove a comment which said something that isn't true! ASM analysis shows that the mask does not remove the bounds check on accessing the array.
2026-07-20 18:22:58 +00:00
Armano 7b045cd417 feat(minfier): drop last break from last switch case (#24673)
After many trial and errors, this seem to be the best way to remove
break stmts in switch cases,

This change targets only last break in last case of switch smts if its
unlabelled

this change differs from #23914 as its no longer targets all branches as
that should not be no longer necessary if all cases are correctly
rewritten

https://github.com/oxc-project/oxc/issues/24672

-----

cases like `switch (a) { case 3: if (b) break; }` are not changed

-----

ref: #17544
2026-07-20 13:21:03 +08:00
camc314 54cc121250 feat(ast)!: split MetaProperty into ImportMeta and NewTarget (#24557)
## Summary
- replace the generic Rust MetaProperty AST node with dedicated ImportMeta and NewTarget nodes
- preserve the ESTree MetaProperty shape and generated public TypeScript types
- update parser, formatter, codegen, lint, transform, minifier, traversal, and React compiler consumers

## Summary

Remove `MetaProperty` AST node, in favour of two separate nodes (`ImportMeta` and `NewTarget`)

## Breaking Change

The Rust AST field changes from:

```rust
pub struct MetaProperty<'a> {
    pub node_id: Cell<NodeId>,
    pub span: Span,
    pub meta: IdentifierName<'a>,
    pub property: IdentifierName<'a>,
}
```

to:

```rust
/// /// `import.meta` in `console.log(import.meta);`.
pub struct ImportMeta {
    pub node_id: Cell<NodeId>,
    pub span: Span,
}

/// `new.target` in `function F() { return new.target; }`.
pub struct NewTarget {
    pub node_id: Cell<NodeId>,
    pub span: Span,
}
```

## Why?

The current AST could represent shapes such as:

```
foo.bar
```

By constructing the node manually. However this doesn't make sense, and is invalid.

## How to migrate?

1. Replace any `Expression::MetaProperty` matches/checks with the dedicated `Expression::ImportMeta` and `Expression::NewTarget` varients
2. Replace any `new_meta_property` construction with the new `new_import_meta` or `new_new_target` APIs.
3. Inspecting the `meta`/`property` identifier names is no longer required.
2026-07-15 14:48:32 +00:00
Boshen 3d223072c2 feat(parser): add ParseOptions::enable_ident_hashes (#24491)
Adds `ParseOptions::enable_ident_hashes` (default `true`) and `Ident::new_unhashed` in `oxc_str`, and turns it off in the parse-only paths of the `oxc-parser` napi crate and the JS/JSON formatters.

### Why

`Ident`'s precomputed hash (#19143) is a parse-time investment that pays off in semantic analysis — but parse-only consumers (parse + serialize, formatting) pay it for nothing. Profiling against other native parsers showed identifier hashing at 3.5-4.6% of parse time.

Measured on M-series (yuku-style native harness, 50 warmup + 300 runs, median):

| fixture | default | option off |
|---|---|---|
| react.development.js | 0.156 ms | 0.152 ms (−2.3%) |
| binder.ts | 0.383 ms | 0.370 ms (−3.5%) |
| App.tsx | 1.140 ms | 1.111 ms (−2.5%) |
| checker.ts | 7.862 ms | 7.499 ms (−4.6%) |
| typescript.js | 25.07 ms | 24.16 ms (−3.6%) |

### Contract

Unhashed `Ident`s store hash `0`; `Eq`/`Hash`/`ContentEq` include the stored hash, so unhashed and hashed `Ident`s of the same string do not compare equal. Semantic analysis (or anything relying on `Ident` hashing) must not run on an AST parsed with the option disabled. Default behavior is unchanged.

Every `Ident` the parser creates funnels through the `ParserImpl::ident()` helper, so the option applies uniformly. This covers identifiers lexed directly (`parse_identifier_kind`, `parse_private_identifier`) as well as those reconstructed from a `&str`/`Str` — import/export specifier locals, JSX element/member names, the TS `intrinsic` type name, TS import-type option keys (`with`/`assert`), and the `import x = this` recovery path — which would otherwise always be hashed through `Into<Ident>`. Exhaustively checked by parsing the test262/babel/typescript/misc/prettier corpora (96.5k files, 5.6M identifiers) in both option states and walking every `Ident` in the AST.

On 64-bit platforms `Ident::new_unhashed` compiles to a no-op: an unhashed `Ident` has the same layout and bit representation as `&str`.

### Opt-outs

- **napi `oxc-parser`** ties `enable_ident_hashes` to whether semantic errors are requested. Both parse entry points run `SemanticBuilder` only when `showSemanticErrors` is set, so the common parse-and-serialize path skips hashing while the semantic-errors path keeps it. Serialized output is unchanged — the hash is internal to `Ident` and never emitted.
- **JS and JSON formatters** turn it off: they never run semantic analysis and only read `Ident::as_str` / compare idents against string literals. Exception: the JS formatter keeps hashes when built with the `detect_code_removal` feature, whose check runs `SemanticBuilder` on the formatter-parsed AST.
2026-07-14 15:55:27 +00:00
Brooooooklyn 582ea7547f refactor(napi): don't force tokio_rt on the napi binding crates (#24475)
## What

Stop forcing `tokio_rt` on oxc's napi binding crates.

`tokio_rt` was enabled as a blanket default on the workspace `napi` dependency, so **every** napi crate pulled in tokio. But the napi binding crates don't use a tokio runtime:

- no `#[napi] async fn` exports and no `tokio::` usage anywhere in the napi crates
- the only async surface is `oxc_parser_napi`'s `parse_async`, which is a libuv-backed `AsyncTask` / `Task` (napi4), **not** a tokio future

## Change (2 lines)

- workspace `Cargo.toml`: `napi = { version = "3", features = ["tokio_rt"] }` → `napi = { version = "3" }` — napi's own `default` already provides `napi4` + `dyn-symbols`, which covers `AsyncTask`
- `napi/parser/Cargo.toml`: drop the now-redundant `features = ["async"]`

## Effect

- oxc's napi crates (`oxc_napi`, `oxc_parser_napi`, `oxc_transform_napi`, `oxc_minify_napi`) no longer link tokio → smaller npm binaries
- downstream consumers that share the same `napi` (e.g. a bundler wiring napi's pluggable async-runtime SPI) are no longer forced to pull tokio in via Cargo feature unification
- crates that genuinely want napi's tokio async (`oxlint`, `oxfmt`) keep opting in explicitly via `features = ["async"]`

## Verification

- `cargo check --workspace` — green
- `cargo tree -i tokio` shows tokio gone from all four napi crates' normal dependency trees; `napi` now resolves to just `default` (`napi4` + `dyn-symbols`)
- CI validates the JS-side async parse (`parse_async`) tests

🤖 Generated with [Claude Code](https://claude.com/claude-code)

https://claude.ai/code/session_01T34fMrYCf2V13Mg8BKmnda

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Dependency-feature-only change with explicit opt-in preserved for crates that need napi async; async parse paths use `Task`/`AsyncTask`, not Tokio futures.
>
> **Overview**
> Removes **`tokio_rt`** from the workspace **`napi`** dependency so NAPI binding crates no longer inherit Tokio through Cargo feature unification. **`napi/parser`** also drops the redundant **`features = ["async"]`** on its **`napi`** line.
>
> Published NAPI crates (`oxc_parser_napi`, `oxc_transform_napi`, etc.) should link a smaller native addon while **`parse`** / **`parse_raw`** keep using **`AsyncTask`** / **`Task`** (napi4), not napi’s Tokio async runtime. Crates that need napi async (**`oxlint`**, **`oxfmt`**, playground) still enable **`features = ["async"]`** locally.
>
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit 48c63d442bcc2ffa8b88f5aa6f777137bebe8651. Bugbot is set up for automated code reviews on this repo. Configure [here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->
2026-07-14 07:50:59 +00:00
oxc-guard[bot] 8e0ed2ebb9 release(crates): oxc v0.140.0 (#24453)
### 🚀 Features

- 616bfa2 minifier: Remove unreachable code after terminating statements
(#24441) (Dunqing)
- ddab89a data_structures: Add `likely` and `unlikely` functions
(#24368) (overlookmotel)
- a3a39f9 react_compiler: Implement enableEmitHookGuards codegen
(#24329) (Boshen)
- b79eef7 minifier: Apply De Morgan's law to negated comparison chains
in jump guards and loop tests (#24279) (Dunqing)
- 34ff7b4 minifier: Drop write-only property assignments to unused local
bindings by default (#24112) (Dunqing)
- 1b829d8 semantic: Record const enums in EnumData (#24268) (Dunqing)
- ba0944c semantic: Add `Scoping::set_symbol_span` (#24221) (camc314)

### 🐛 Bug Fixes

- 7d33363 minifier: Preserve guaranteed throws from class heritage
evaluation (#24349) (Dunqing)
- 058a62f semantic: Track ambient contexts in `SemanticBuilder` (#24327)
(camc314)
- 721eb0b transformer/decorator: Scope accessor class binding (#24330)
(camc314)
- 1ebdce3 semantic: Allow reserved keywords in ambient declaration types
(#24325) (camc314)
- 460176a track-memory-allocations: Exclude arena chunks from Sys allocs
(#24292) (Dunqing)
- af4922b transformer: Clear lowered namespace redeclarations (#24300)
(camc314)
- ffd2765 semantic: Mark declared computed `MethodDefinition`s as type
references (#24296) (camc314)
- f17514b isolated-declarations: Emit const readonly fields as types
(#24288) (camc314)
- 40f769d minifier: Make `__proto__` write tracking execution-order
independent (#24280) (Dunqing)
- 6371fed transformer: Remove stale enum member bindings (#24272)
(camc314)
- f05dfab transformer: Correct symbol flags for lowered namespaces
(#24271) (Dunqing)
- 84eeb55 transformer: Correct symbol flags for lowered enums (#24269)
(Dunqing)
- c3057da transformer: Preserve generated class binding spans (#24220)
(camc314)
- 8260096 transformer: Correct span for lowered namespace symbol
(#24222) (camc314)
- 42d00d3 semantic: Mark declared class heritage as type references
(#24237) (camc314)
- 588d997 semantic: Mark TS `PropertyDefinition`s computed fields as
type references (#24233) (camc314)
- 9b95632 semantic: Mark computed method keys in `TSMethodSignature`s as
type references (#24232) (camc314)

### ⚡ Performance

- 5b26643 transformer_plugins: Dispatch global defines by trailing name
(#23666) (Boshen)
- dce0f29 react_compiler: Replace all compiled functions in a single AST
walk (#24403) (Boshen)
- f85f0d8 ast: Delegate inherited enum variants in clone_in and estree
derives (#23555) (Boshen)
- 3ff0234 allocator: Remove `unwrap` from `ReplaceWith` (#24365)
(overlookmotel)
- ab22e80 transformer: Fix Rust 1.97 performance regression (#24354)
(camc314)
- b47585c parser: Use `ReplaceWith` instead of `TakeIn` (#24018)
(overlookmotel)
- b227a06 minifier: Use `ReplaceWith` instead of `TakeIn` (#24017)
(overlookmotel)

Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
2026-07-14 15:02:22 +08:00
renovate bb629d8fd4 chore(deps): update npm packages (#24418)
This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Adoption](https://docs.renovatebot.com/merge-confidence/) | [Passing](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
| [@arethetypeswrong/core](https://redirect.github.com/arethetypeswrong/arethetypeswrong.github.io) ([source](https://redirect.github.com/arethetypeswrong/arethetypeswrong.github.io/tree/HEAD/packages/core)) | [`0.18.4` → `0.18.5`](https://renovatebot.com/diffs/npm/@arethetypeswrong%2fcore/0.18.4/0.18.5) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@arethetypeswrong%2fcore/0.18.5?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@arethetypeswrong%2fcore/0.18.5?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@arethetypeswrong%2fcore/0.18.4/0.18.5?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@arethetypeswrong%2fcore/0.18.4/0.18.5?slim=true) |
| [@typescript-eslint/parser](https://typescript-eslint.io/packages/parser) ([source](https://redirect.github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser)) | [`8.62.1` → `8.63.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2fparser/8.62.1/8.63.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@typescript-eslint%2fparser/8.63.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@typescript-eslint%2fparser/8.63.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@typescript-eslint%2fparser/8.62.1/8.63.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@typescript-eslint%2fparser/8.62.1/8.63.0?slim=true) |
| [@typescript-eslint/scope-manager](https://typescript-eslint.io/packages/scope-manager) ([source](https://redirect.github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/scope-manager)) | [`8.62.1` → `8.63.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2fscope-manager/8.62.1/8.63.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@typescript-eslint%2fscope-manager/8.63.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@typescript-eslint%2fscope-manager/8.63.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@typescript-eslint%2fscope-manager/8.62.1/8.63.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@typescript-eslint%2fscope-manager/8.62.1/8.63.0?slim=true) |
| [@typescript-eslint/visitor-keys](https://typescript-eslint.io) ([source](https://redirect.github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/visitor-keys)) | [`8.62.1` → `8.63.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2fvisitor-keys/8.62.1/8.63.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@typescript-eslint%2fvisitor-keys/8.63.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@typescript-eslint%2fvisitor-keys/8.63.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@typescript-eslint%2fvisitor-keys/8.62.1/8.63.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@typescript-eslint%2fvisitor-keys/8.62.1/8.63.0?slim=true) |
| [@vitest/browser](https://vitest.dev/guide/browser/) ([source](https://redirect.github.com/vitest-dev/vitest/tree/HEAD/packages/browser)) | [`4.1.9` → `4.1.10`](https://renovatebot.com/diffs/npm/@vitest%2fbrowser/4.1.9/4.1.10) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@vitest%2fbrowser/4.1.10?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@vitest%2fbrowser/4.1.10?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@vitest%2fbrowser/4.1.9/4.1.10?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@vitest%2fbrowser/4.1.9/4.1.10?slim=true) |
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| [tsx](https://tsx.hirok.io) ([source](https://redirect.github.com/privatenumber/tsx)) | [`4.22.5` → `4.23.0`](https://renovatebot.com/diffs/npm/tsx/4.22.5/4.23.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/tsx/4.23.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/tsx/4.23.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/tsx/4.22.5/4.23.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/tsx/4.22.5/4.23.0?slim=true) |
| [type-fest](https://redirect.github.com/sindresorhus/type-fest) | [`5.7.0` → `5.8.0`](https://renovatebot.com/diffs/npm/type-fest/5.7.0/5.8.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/type-fest/5.8.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/type-fest/5.8.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/type-fest/5.7.0/5.8.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/type-fest/5.7.0/5.8.0?slim=true) |
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---

### Release Notes

<details>
<summary>arethetypeswrong/arethetypeswrong.github.io (@&#8203;arethetypeswrong/core)</summary>

### [`v0.18.5`](https://redirect.github.com/arethetypeswrong/arethetypeswrong.github.io/blob/HEAD/packages/core/CHANGELOG.md#0185)

##### Patch Changes

- [`c4be7e8`](https://redirect.github.com/arethetypeswrong/arethetypeswrong.github.io/commit/c4be7e8): Detect default exports in webpack-bundled CommonJS libraries.

</details>

<details>
<summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/parser)</summary>

### [`v8.63.0`](https://redirect.github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8630-2026-07-06)

[Compare Source](https://redirect.github.com/typescript-eslint/typescript-eslint/compare/v8.62.1...v8.63.0)

This was a version bump only for parser to align it with other projects, there were no code changes.

See [GitHub Releases](https://redirect.github.com/typescript-eslint/typescript-eslint/releases/tag/v8.63.0) for more information.

You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.

</details>

<details>
<summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/scope-manager)</summary>

### [`v8.63.0`](https://redirect.github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/scope-manager/CHANGELOG.md#8630-2026-07-06)

[Compare Source](https://redirect.github.com/typescript-eslint/typescript-eslint/compare/v8.62.1...v8.63.0)

##### 🩹 Fixes

- **scope-manager:** export ClassStaticBlockScope ([#&#8203;12460](https://redirect.github.com/typescript-eslint/typescript-eslint/pull/12460))

##### ❤️ Thank You

- 송재욱

See [GitHub Releases](https://redirect.github.com/typescript-eslint/typescript-eslint/releases/tag/v8.63.0) for more information.

You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.

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<details>
<summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/visitor-keys)</summary>

### [`v8.63.0`](https://redirect.github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/visitor-keys/CHANGELOG.md#8630-2026-07-06)

[Compare Source](https://redirect.github.com/typescript-eslint/typescript-eslint/compare/v8.62.1...v8.63.0)

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See [GitHub Releases](https://redirect.github.com/typescript-eslint/typescript-eslint/releases/tag/v8.63.0) for more information.

You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.

</details>

<details>
<summary>vitest-dev/vitest (@&#8203;vitest/browser)</summary>

### [`v4.1.10`](https://redirect.github.com/vitest-dev/vitest/releases/tag/v4.1.10)

[Compare Source](https://redirect.github.com/vitest-dev/vitest/compare/v4.1.9...v4.1.10)

#####    🐞 Bug Fixes

- **browser**: Check fs access in builtin commands \[backport to v4]  -  by [@&#8203;hi-ogawa](https://redirect.github.com/hi-ogawa), **Hiroshi Ogawa** and **OpenCode (claude-opus-4-8)** in [#&#8203;10680](https://redirect.github.com/vitest-dev/vitest/issues/10680) [<samp>(5c18d)</samp>](https://redirect.github.com/vitest-dev/vitest/commit/5c18dd267)
- **vm**: Fix external module resolve error with deps optimizer query for encoded URI \[backport to v4]  -  by [@&#8203;SveLil](https://redirect.github.com/SveLil) and [@&#8203;hi-ogawa](https://redirect.github.com/hi-ogawa) in [#&#8203;10661](https://redirect.github.com/vitest-dev/vitest/issues/10661) [<samp>(bae52)</samp>](https://redirect.github.com/vitest-dev/vitest/commit/bae52b511)

#####     [View changes on GitHub](https://redirect.github.com/vitest-dev/vitest/compare/v4.1.9...v4.1.10)

</details>

<details>
<summary>privatenumber/tsx (tsx)</summary>

### [`v4.23.0`](https://redirect.github.com/privatenumber/tsx/releases/tag/v4.23.0)

[Compare Source](https://redirect.github.com/privatenumber/tsx/compare/v4.22.5...v4.23.0)

##### Bug Fixes

- avoid redundant filesystem probes during module resolution ([257bbbb](https://redirect.github.com/privatenumber/tsx/commit/257bbbb7eb2784cad6a3bb7a2d9c9747d28d96ec)), closes [privatenumber/tsx#809](https://redirect.github.com/privatenumber/tsx/issues/809)

##### Features

- add multi-scenario startup benchmark suite ([c178197](https://redirect.github.com/privatenumber/tsx/commit/c178197b104d055fd3431f7448982f3156394d12)), closes [privatenumber/tsx#809](https://redirect.github.com/privatenumber/tsx/issues/809) [#&#8203;809](https://redirect.github.com/privatenumber/tsx/issues/809) [hi#signal](https://redirect.github.com/hi/issues/signal) [privatenumber/tsx#145](https://redirect.github.com/privatenumber/tsx/issues/145) [#&#8203;809](https://redirect.github.com/privatenumber/tsx/issues/809)

***

This release is also available on:

- [npm package (@&#8203;latest dist-tag)](https://www.npmjs.com/package/tsx/v/4.23.0)

</details>

<details>
<summary>sindresorhus/type-fest (type-fest)</summary>

### [`v5.8.0`](https://redirect.github.com/sindresorhus/type-fest/compare/v5.7.0...v5.8.0)

[Compare Source](https://redirect.github.com/sindresorhus/type-fest/compare/v5.7.0...v5.8.0)

</details>

---

### Configuration

📅 **Schedule**: (in timezone Asia/Shanghai)

- Branch creation
  - "before 10am on monday"
- Automerge
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🚦 **Automerge**: Enabled.

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2026-07-13 00:48:51 +00:00
renovate[bot] 0e00b91b5a chore(deps): update dependency rust to v1.97.0 (#24328)
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [rust](https://redirect.github.com/rust-lang/rust) | minor | `1.96.1`
→ `1.97.0` |

---

### Release Notes

<details>
<summary>rust-lang/rust (rust)</summary>

###
[`v1.97.0`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1970-2026-07-09)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.96.1...1.97.0)

\==========================

<a id="1.97.0-Language"></a>

## Language

- [Consider `Result<T, Uninhabited>` and `ControlFlow<Uninhabited, T>`
to be equivalent to `T` for must use
lint](https://redirect.github.com/rust-lang/rust/pull/148214)
- [Add allow-by-default `dead_code_pub_in_binary` lint for unused pub
items in binary
crates](https://redirect.github.com/rust-lang/rust/pull/149509)
- [Stabilize the `div32`, `lam-bh`, `lamcas`, `ld-seq-sa` and `scq`
target features](https://redirect.github.com/rust-lang/rust/pull/154510)
- [Stabilize
`cfg(target_has_atomic_primitive_alignment)`](https://redirect.github.com/rust-lang/rust/pull/155006)
- [Allow trailing `self` in imports in more
cases](https://redirect.github.com/rust-lang/rust/pull/155137)

<a id="1.97.0-Platform-Support"></a>

## Platform Support

- [nvptx64-nvidia-cuda: drop support for old architectures and old
ISAs](https://redirect.github.com/rust-lang/rust/pull/152443)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]:
https://doc.rust-lang.org/rustc/platform-support.html

<a id="1.97.0-Stabilized-APIs"></a>

## Stabilized APIs

- [`Default for
RepeatN`](https://doc.rust-lang.org/stable/std/iter/struct.RepeatN.html#impl-Default-for-RepeatN%3CA%3E)
- [`Copy for
ffi::FromBytesUntilNulError`](https://doc.rust-lang.org/stable/std/ffi/struct.FromBytesUntilNulError.html#impl-Copy-for-FromBytesUntilNulError)
- [`Send for std::fs::File` on
UEFI](https://redirect.github.com/rust-lang/rust/pull/154003)
-
[`<{integer}>::isolate_highest_one`](https://doc.rust-lang.org/stable/std/primitive.u32.html#method.isolate_highest_one)
-
[`<{integer}>::isolate_lowest_one`](https://doc.rust-lang.org/stable/std/primitive.u32.html#method.isolate_lowest_one)
-
[`<{integer}>::highest_one`](https://doc.rust-lang.org/stable/std/primitive.u32.html#method.highest_one)
-
[`<{integer}>::lowest_one`](https://doc.rust-lang.org/stable/std/primitive.u32.html#method.lowest_one)
-
[`<{integer}>::bit_width`](https://doc.rust-lang.org/stable/std/primitive.u32.html#method.bit_width)
-
[`NonZero<{integer}>::isolate_highest_one`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.isolate_highest_one)
-
[`NonZero<{integer}>::isolate_lowest_one`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.isolate_lowest_one)
-
[`NonZero<{integer}>::highest_one`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.highest_one)
-
[`NonZero<{integer}>::lowest_one`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.lowest_one)
-
[`NonZero<{integer}>::bit_width`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.bit_width)

These previously stable APIs are now stable in const contexts:

-
[`char::is_control`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.is_control)

<a id="1.97.0-Cargo"></a>

## Cargo

- [Stabilize `build.warnings`
config.](https://redirect.github.com/rust-lang/cargo/pull/16796) This
controls how lint warnings from local packages are treated. Useful for
enforcing a warning-free build in CI, replacing `-Dwarnings`.
[docs](https://doc.rust-lang.org/nightly/cargo/reference/config.html#buildwarnings)
- [Stabilize `resolver.lockfile-path`
config.](https://redirect.github.com/rust-lang/cargo/pull/16694) This
allows specifying the path to the lockfile to use when resolving
dependencies. Useful when working with read-only source directories.
[docs](https://doc.rust-lang.org/nightly/cargo/reference/config.html#resolverlockfile-path)
- [cargo-clean: Error when `--target-dir` doesn't look like a Cargo
target
directory.](https://redirect.github.com/rust-lang/cargo/pull/16712) This
prevents accidental deletion of non-target directories.
- [Add `-m` shorthand for
`--manifest-path`](https://redirect.github.com/rust-lang/cargo/pull/16858)
- [Remove `curl` dependency from `crates-io`
crate](https://redirect.github.com/rust-lang/cargo/pull/16936)

<a id="1.97.0-Rustdoc"></a>

## Rustdoc

- [Stabilize `--emit`
flag](https://redirect.github.com/rust-lang/rust/pull/146220)
- [Stabilize
`--remap-path-prefix`](https://redirect.github.com/rust-lang/rust/pull/155307)

<a id="1.97.0-Compatibility-Notes"></a>

## Compatibility Notes

- [Emit a future-compatibility warning when relying on `f32:
From<{float}>` to constrain
`{float}`](https://redirect.github.com/rust-lang/rust/pull/139087)
- [Rust will use the v0 symbol mangling scheme by
default.](https://redirect.github.com/rust-lang/rust/pull/151994) This
may cause some tools (such as debuggers or profilers, especially with
old versions) to fail to demangle symbols emitted by Rust. It may also
cause the formatting of text in backtraces to change.
- [Prevent deref coercions in `pin!`, in order to prevent
unsoundness.](https://redirect.github.com/rust-lang/rust/pull/153457)
The most likely case where this might impact users is: writing `pin!(x)`
where `x` has type `&mut T` will now always correctly produce a value of
type `Pin<&mut &mut T>`, instead of sometimes allowing a coercion that
produces a value of type `Pin<&mut T>`. This coercion was previously
incorrectly allowed since Rust 1.88.0.
- [Deprecate `std::char` constants and
functions](https://redirect.github.com/rust-lang/rust/pull/153873)
- [Warn on linker output by
default](https://redirect.github.com/rust-lang/rust/pull/153968)
- [Remove hidden `f64` methods which have been deprecated since
1.0](https://redirect.github.com/rust-lang/rust/pull/153975)
- [report the `varargs_without_pattern` lint in
deps](https://redirect.github.com/rust-lang/rust/pull/154599)
- [Forbid passing generic arguments to module path segments even if the
module reexports a generic enum
variant](https://redirect.github.com/rust-lang/rust/pull/154971)
- [Error on invalid macho `link_section`
specifier](https://redirect.github.com/rust-lang/rust/pull/155065)
- The encoding of certain `enum`s [have
changed](https://redirect.github.com/rust-lang/rust/pull/155473). This
is not a breaking change, as it only applies to `enum`s without layout
guarantees, but is noted here as we've seen people impacted from having
made assumptions about the layout algorithm.
- [Error on `#[export_name = "..."]` where the name is
empty](https://redirect.github.com/rust-lang/rust/pull/155515)
- [Syntactically reject tuple index shorthands in struct
patterns](https://redirect.github.com/rust-lang/rust/pull/155698)
- [validate `#[link_name = "..."]` & `#[link(name = "...")]`
parameters](https://redirect.github.com/rust-lang/rust/pull/155817)
- On Windows, after calling `shutdown` on a socket to shut down the
write side, attempting to write to the socket will now produce a
`BrokenPipe` error rather than `Other`. [Map `WSAESHUTDOWN` to
`io::ErrorKind::BrokenPipe`](https://redirect.github.com/rust-lang/rust/pull/156063)

</details>

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Cameron <cameron.clark@hey.com>
2026-07-09 18:34:23 +01:00
renovate[bot] 81511b4568 chore(deps): update dependency oxfmt to ^0.58.0 (#24240)
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Adoption](https://docs.renovatebot.com/merge-confidence/) |
[Passing](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
| [oxfmt](https://oxc.rs/docs/guide/usage/formatter)
([source](https://redirect.github.com/oxc-project/oxc/tree/HEAD/npm/oxfmt))
| [`^0.57.0` →
`^0.58.0`](https://renovatebot.com/diffs/npm/oxfmt/0.57.0/0.58.0) |
![age](https://developer.mend.io/api/mc/badges/age/npm/oxfmt/0.58.0?slim=true)
|
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|
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|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/oxfmt/0.57.0/0.58.0?slim=true)
|

---

### Release Notes

<details>
<summary>oxc-project/oxc (oxfmt)</summary>

###
[`v0.58.0`](https://redirect.github.com/oxc-project/oxc/compare/oxfmt_v0.57.0...oxfmt_v0.58.0)

[Compare
Source](https://redirect.github.com/oxc-project/oxc/compare/oxfmt_v0.57.0...oxfmt_v0.58.0)

</details>

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2026-07-07 10:23:12 +01:00