@typescript-eslint/parser

For more information, please see our blog post on this release: typescript-eslint.io/blog/announcing-typescript…

Raw Changelog

Breaking Changes

• breaking

  typescript-estree: split TSMappedType typeParameter into constraint and key

• breaking

  parser: always enable comment, loc, range, tokens

• breaking

  eslint-plugin: [prefer-nullish-coalescing] change ignoreConditionalTests default to true

• breaking

  typescript-estree: enable dot globs for project by default

• deprecated

  eslint-plugin: deprecate no-loss-of-precision extension rule

• breaking

  eslint-plugin: remove formatting/layout rules

• breaking

  typescript-estree: remove slow deprecated and isolated programs

• breaking

  typescript-estree: add TSEnumBody node for TSEnumDeclaration body

• breaking

  typescript-estree: rename automaticSingleRunInference to disallowAutomaticSingleRunInference

• breaking

  ast-spec: remove deprecated type params

• breaking

  type-utils: remove IsNullableTypeOptions interface

• breaking

  eslint-plugin: [no-unused-vars] align catch behavior to ESLint 9

• breaking

  utils: swap LegacyESLint out for FlatESLint as ESLint export

• breaking

  eslint-plugin: split no-empty-object-type out from ban-types and no-empty-interfaces

• breaking

  utils: allow specifying additional rule meta.docs in RuleCreator

• breaking

  eslint-plugin: apply initial config changes for v8

• breaking

  eslint-plugin: replace ban-types with no-restricted-types, no-unsafe-function-type, no-wrapper-object-types

• breaking

  typescript-estree: remove EXPERIMENTAL_useSourceOfProjectReferenceRedirect

• breaking

  eslint-plugin: remove no-useless-template-literals

• breaking

  type-utils: remove getTokenAtPosition

• breaking

  eslint-plugin: [no-floating-promises] disable checkThenables by default for v8

• breaking

  rule-tester: switched to flat config

Features

• Stricter parent types for the AST

• Speed up non-type-aware linting with project service

• v8 integration branch

• removed

  eslint-plugin: remove deprecated no-throw-literal rule

• eslint-plugin: [no-floating-promises] add 'allowForKnownSafeCalls' option

• eslint-plugin: [no-unused-vars] add reportUnusedIgnorePattern option

• eslint-plugin: [no-unused-vars] support ignoreClassWithStaticInitBlock

• eslint-plugin: [no-unused-vars] handle comma operator for assignments, treat for-of the same as for-in

• eslint-plugin: [no-unused-vars] report if var used only in typeof

• eslint-plugin: [return-await] add return-await to strict-type-checked preset

• eslint-plugin: [no-unnecessary-type-parameters] promote to strict

• rule-tester: support multipass fixes

• type-utils: support intersection types in TypeOrValueSpecifier

• typescript-estree: stabilize EXPERIMENTAL_useProjectService as projectService

• typescript-estree: also remove projectService in withoutProjectParserOptions

• typescript-estree: exposes ProjectService logs through the plugin

• utils: add Linter configType constructor option

• removed

  utils: remove deprecated context helpers

Fixes

• Correct eslint-plugin's peerDependency on parser@8

• Bring back in allowdefaultprojectforfiles rename

• Disable projectService in disabled-type-checked shared config

• eslint-plugin: include alpha pre-releases in parser peer dependency

• eslint-plugin: correct rules.d.ts types to not rely on non-existent imports

• eslint-plugin: remove duplicate import RuleModuleWithMetaDocs

• eslint-plugin: [no-unnecessary-template-expression] do not render escaped strings in autofixes

• eslint-plugin: [no-unused-vars] incorporate upstream changes around caught errors report messages

• eslint-plugin: [no-misused-promises] perf: avoid getting types of variables/functions if the annotated type is obviously not a function

• rule-tester: set configType to eslintrc in Linter options

• rule-tester: re-apply updates from main

• rule-tester: provide Linter a cwd in its constructor

• type-utils: also check declared modules for package names in TypeOrValueSpecifier

• types: allow ProjectServiceOptions for projectService

• typescript-estree: pass extraFileExtensions to projectService

• typescript-estree: only run projectService setHostConfiguration when needed

• typescript-estree: specific error for parserOptions.project not including a file

• typescript-estree: adds support for project services using extended config files

• typescript-estree: factor tsconfigRootDir into allowDefaultProject