@typescript-eslint/parser

Bug Fixes

• eslint-plugin: add no-unsafe-unary-minus, prefer-destructuring to disable-type-checked

• eslint-plugin: correct message for no-unsafe-unary-minus

Features

• eslint-plugin: [explicit-function-return-type] add support for typed class property definitions

• eslint-plugin: [require-await] allow yielding Promise in async generators

You can read about our versioning strategy and releases on our website.

Note for eslint plugin authors and other API consumers

TypeScript v5.3 shipped with a type change that was incompatible with our types. This change has been fixed and will be released in v5.3.3. Until that time you can work around this error using skipLibCheck.

Bug Fixes

• typescript-estree: ensure backwards compat with pre-5.3 import attributes

Features

• Support TS 5.3

• typescript-estree: pass jsDocParsingMode everywhere

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [class-methods-use-this] detect a problematic case for private/protected members if ignoreClassesThatImplementAnInterface is set

• eslint-plugin: [no-unnecessary-condition] fix false positive with computed member access and branded key type

• eslint-plugin: [switch-exhaustiveness-check] enum members with new line or single quotes are not being fixed correctly (#7806) (a034d0a), closes #7768

• utils: add missing fields to flat config types

• utils: allow string processor in flat config

Features

• Add accessor support for member-ordering

• eslint-plugin: [switch-exhaustiveness-check] add requireDefaultForNonUnion option

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [explicit-function-return-type] support JSX attributes in allowTypedFunctionExpressions

• eslint-plugin: [no-unnecessary-qualifier] handle nested namespace id

Features

• Add no-unsafe-unary-minus rule

• Add types for flat config files

• Allow typescript 5.3.0-beta as devDependency

• eslint-plugin: no-unsafe-enum-comparison handles switch cases

• typescript-estree: skip isTTY version check if user passes loggerFn on unsupported TypeScript version warning

• utils: add ESLint CodePath selector types

• utils: update types to reflect RuleContext and SourceCode changes and deprecations

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [no-unused-vars] handle logical assignment

• eslint-plugin: [require-await] add support for "await using"

Features

• eslint-plugin: [ban-ts-comments] suggest ts-expect-error over ts-ignore

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [no-confusing-void-expression] handle unfixable cases

• eslint-plugin: [no-unsafe-return] allow returning anything if explicitly returning any

• rule-tester: fix parser fallback logic

• type-utils: treat custom type roots as external

Features

• eslint-plugin: [max-params] don't count this: void parameter (#7696) (6398d3f), closes #7538

• eslint-plugin: [naming-convention] add support for default and namespace imports

• eslint-plugin: [no-restricted-imports] support import = require

• eslint-plugin: [no-unsafe-enum-comparison] add switch suggestion (#7691) (53d5263), closes #7643

• eslint-plugin: [prefer-readonly] private fields support

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [consistent-type-imports] import assertion checks added

• eslint-plugin: [no-shadow] fix static class generics for class expressions

• eslint-plugin: [no-unsafe-member-access] report on only the accessed property

• eslint-plugin: [no-useless-empty-export] exempt .d.ts

Features

• eslint-plugin: add new extended rule prefer-destructuring

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [no-restricted-imports] disallow side effect imports when allowTypeImports is enabled

Features

• eslint-plugin: [await-thenable] added suggestion fixer

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [key-spacing] consider properties with parens and comments

Features

• rule-tester: allow to create empty tests

You can read about our versioning strategy and releases on our website.

Bug Fixes

• eslint-plugin: [consistent-type-assertions] wrap object return value with parentheses

Features

• Bump supported TS version to 5.2

• Support Explicit Resource Management syntax for TS 5.2

You can read about our versioning strategy and releases on our website.

See the announcement blog post for a friendly description of all changes and CHANGELOG.md for a full organized list of them. 🎉

What's Changed

• Made BaseNode.parent non-optional

• experimental-utils: Console.warn on import of experimental-utils

• Remove partial type-information program

• deprecated

  eslint-plugin: Deprecate no-type-alias

• typescript-estree: Wrap import = declaration in an export node

• typescript-estree: Add type checker wrapper APIs to ParserServicesWithTypeInformation

• Replace tsutils with ts-api-tools

• eslint-plugin: Rework configs: recommended, strict, stylistic; -type-checked

• Remove experimental-utils

• removed

  ast-spec: Remove more invalid properties

• eslint-plugin: Add config that disables type-aware linting

• typescript-estree: Account for namespace nesting in AST conversion

• Add package.json exports for public packages

• Bumped ts-api-utils to 0.0.39

• Rename typeParameters to typeArguments where needed

• removed

  typescript-estree: Remove optionality from AST boolean properties

• typescript-estree: Added allowInvalidAST option to not throw on invalid tokens

• Update exports field in package.json files

• Improve error location

• typescript-estree: Throw errors on interface with implements

• typescript-estree: Strict class heritage clauses check

• typescript-estree: Check for illegal decorators on function declarations

• typescript-estree: Throw errors for object methods without function bodies

• typescript-estree: Fix error handling on ImportExpression

• removed

  Remove moduleResolver API

• deprecated

  typescript-estree: Warn on deprecated AST property accesses

• eslint-plugin: Allow parser@^6.0.0

• typescript-estree: Check modifiers on every node

• typescript-estree: Throw errors when abstract property has initializer

• typescript-estree: Allow writing to deprecated node properties

• eslint-plugin: [prefer-readonly-parameter-types] added an optional type allowlist

• typescript-estree: Forbid override on non-constructor function/methods

• typescript-estree: Forbid members in Mapped Type

• type-utils: Checking of type aliases' type names by typeMatchesSpecifier

• breaking

  Bump minimum TS to 4.3.5

• type-utils: Fixed TypeOrValueSpecifier not accounting for scoped DT packages

• Improve rule schemas, add test to validate schemas, add tooling to generate schema types

• Correct handling of additionalProperties in object schemas

• Add new package rule-tester

• Remove RuleTester in /utils in favour of the new /rule-tester package

• Drop support for node v14 and test against node v20

• eslint-plugin: [restrict-plus-operands] change checkCompoundAssignments to skipCompoundAssignments

• type-utils: File variant of TypeOrValueSpecifier uses canonical filenames instead of lowercasing

• Fix illegal decorator check

• Fork json schema types for better compat with ESLint rule validation

• eslint-plugin: Apply final v6 changes to configs

• typescript-estree: Remove parseWithNodeMaps

• eslint-plugin: Final final config changes for v6

• eslint-plugin: [prefer-optional-chain] handle cases where the first operands are unrelated to the rest of the chain and add type info

• type-utils: Treat intrinsic types as if they are from lib and never match error types