typescript-eslint · kirkwaiblinger · Dec 6, 2025 · Dec 6, 2025 · Dec 6, 2025
diff --git a/package.json b/package.json
@@ -96,7 +96,7 @@
     "lint-staged": "^15.2.2",
     "markdownlint-cli": "^0.46.0",
     "nx": "22.1.1",
-    "prettier": "3.6.2",
+    "prettier": "3.7.2",
     "rimraf": "^5.0.5",
     "semver": "7.7.0",
     "tsx": "*",

diff --git a/packages/ast-spec/src/base/MethodDefinitionBase.ts b/packages/ast-spec/src/base/MethodDefinitionBase.ts
@@ -28,14 +28,12 @@ export interface MethodDefinitionComputedNameBase extends MethodDefinitionBase {
   key: PropertyNameComputed;
 }
 
-export interface MethodDefinitionNonComputedNameBase
-  extends MethodDefinitionBase {
+export interface MethodDefinitionNonComputedNameBase extends MethodDefinitionBase {
   computed: false;
   key: PropertyNameNonComputed;
 }
 
-export interface ClassMethodDefinitionNonComputedNameBase
-  extends MethodDefinitionBase {
+export interface ClassMethodDefinitionNonComputedNameBase extends MethodDefinitionBase {
   computed: false;
   key: ClassPropertyNameNonComputed;
 }
diff --git a/packages/ast-spec/src/base/PropertyDefinitionBase.ts b/packages/ast-spec/src/base/PropertyDefinitionBase.ts
@@ -25,20 +25,17 @@ interface PropertyDefinitionBase extends BaseNode {
   value: Expression | null;
 }
 
-export interface PropertyDefinitionComputedNameBase
-  extends PropertyDefinitionBase {
+export interface PropertyDefinitionComputedNameBase extends PropertyDefinitionBase {
   computed: true;
   key: PropertyNameComputed;
 }
 
-export interface PropertyDefinitionNonComputedNameBase
-  extends PropertyDefinitionBase {
+export interface PropertyDefinitionNonComputedNameBase extends PropertyDefinitionBase {
   computed: false;
   key: PropertyNameNonComputed;
 }
 
-export interface ClassPropertyDefinitionNonComputedNameBase
-  extends PropertyDefinitionBase {
+export interface ClassPropertyDefinitionNonComputedNameBase extends PropertyDefinitionBase {
   computed: false;
   key: ClassPropertyNameNonComputed;
 }
diff --git a/packages/ast-spec/src/declaration/ExportNamedDeclaration/spec.ts b/packages/ast-spec/src/declaration/ExportNamedDeclaration/spec.ts
@@ -65,8 +65,7 @@ interface ExportNamedDeclarationBase extends BaseNode {
  * export { a, b };
  * ```
  */
-export interface ExportNamedDeclarationWithoutSourceWithMultiple
-  extends ExportNamedDeclarationBase {
+export interface ExportNamedDeclarationWithoutSourceWithMultiple extends ExportNamedDeclarationBase {
   /**
    * This will always be an empty array.
    * @deprecated Replaced with {@link `attributes`}.
@@ -88,8 +87,7 @@ export interface ExportNamedDeclarationWithoutSourceWithMultiple
  * export const x = 1;
  * ```
  */
-export interface ExportNamedDeclarationWithoutSourceWithSingle
-  extends ExportNamedDeclarationBase {
+export interface ExportNamedDeclarationWithoutSourceWithSingle extends ExportNamedDeclarationBase {
   /**
    * This will always be an empty array.
    * @deprecated Replaced with {@link `attributes`}.
@@ -113,8 +111,7 @@ export interface ExportNamedDeclarationWithoutSourceWithSingle
  * export { a, b } from 'mod';
  * ```
  */
-export interface ExportNamedDeclarationWithSource
-  extends ExportNamedDeclarationBase {
+export interface ExportNamedDeclarationWithSource extends ExportNamedDeclarationBase {
   declaration: null;
   source: StringLiteral;
 }

diff --git a/packages/ast-spec/src/declaration/FunctionDeclaration/spec.ts b/packages/ast-spec/src/declaration/FunctionDeclaration/spec.ts
@@ -26,8 +26,7 @@ export interface FunctionDeclarationWithName extends FunctionDeclarationBase {
  * export default function () {}
  * ```
  */
-export interface FunctionDeclarationWithOptionalName
-  extends FunctionDeclarationBase {
+export interface FunctionDeclarationWithOptionalName extends FunctionDeclarationBase {
   id: Identifier | null;
 }
 

diff --git a/packages/ast-spec/src/declaration/TSImportEqualsDeclaration/spec.ts b/packages/ast-spec/src/declaration/TSImportEqualsDeclaration/spec.ts
@@ -28,8 +28,7 @@ interface TSImportEqualsDeclarationBase extends BaseNode {
   moduleReference: Identifier | TSExternalModuleReference | TSQualifiedName;
 }
 
-export interface TSImportEqualsNamespaceDeclaration
-  extends TSImportEqualsDeclarationBase {
+export interface TSImportEqualsNamespaceDeclaration extends TSImportEqualsDeclarationBase {
   /**
    * The kind of the import.
    */
@@ -44,8 +43,7 @@ export interface TSImportEqualsNamespaceDeclaration
   moduleReference: Identifier | TSQualifiedName;
 }
 
-export interface TSImportEqualsRequireDeclaration
-  extends TSImportEqualsDeclarationBase {
+export interface TSImportEqualsRequireDeclaration extends TSImportEqualsDeclarationBase {
   /**
    * The kind of the import.
    */

diff --git a/packages/ast-spec/src/declaration/TSModuleDeclaration/spec.ts b/packages/ast-spec/src/declaration/TSModuleDeclaration/spec.ts
@@ -86,8 +86,7 @@ interface TSModuleDeclarationModuleBase extends TSModuleDeclarationBase {
  * module 'foo' {}
  * ```
  */
-export interface TSModuleDeclarationModuleWithStringIdNotDeclared
-  extends TSModuleDeclarationModuleBase {
+export interface TSModuleDeclarationModuleWithStringIdNotDeclared extends TSModuleDeclarationModuleBase {
   body: TSModuleBlock;
   declare: false;
   id: StringLiteral;
@@ -100,8 +99,7 @@ export interface TSModuleDeclarationModuleWithStringIdNotDeclared
  * declare module 'foo';
  * ```
  */
-export interface TSModuleDeclarationModuleWithStringIdDeclared
-  extends TSModuleDeclarationModuleBase {
+export interface TSModuleDeclarationModuleWithStringIdDeclared extends TSModuleDeclarationModuleBase {
   body?: TSModuleBlock;
   declare: true;
   id: StringLiteral;
@@ -113,8 +111,7 @@ export interface TSModuleDeclarationModuleWithStringIdDeclared
  * module A {}
  * ```
  */
-export interface TSModuleDeclarationModuleWithIdentifierId
-  extends TSModuleDeclarationModuleBase {
+export interface TSModuleDeclarationModuleWithIdentifierId extends TSModuleDeclarationModuleBase {
   // Maybe not worth fixing since it's legacy
   body: TSModuleBlock;
   id: Identifier;

diff --git a/packages/ast-spec/src/declaration/VariableDeclaration/spec.ts b/packages/ast-spec/src/declaration/VariableDeclaration/spec.ts
@@ -41,8 +41,7 @@ interface LetOrConstOrVarDeclarationBase extends BaseNode {
   kind: 'const' | 'let' | 'var';
 }
 
-export interface LetOrVarDeclaredDeclaration
-  extends LetOrConstOrVarDeclarationBase {
+export interface LetOrVarDeclaredDeclaration extends LetOrConstOrVarDeclarationBase {
   /**
    * In a `declare let` declaration, the declarators must not have definite assignment
    * assertions or initializers.
@@ -58,8 +57,7 @@ export interface LetOrVarDeclaredDeclaration
   kind: 'let' | 'var';
 }
 
-export interface LetOrVarNonDeclaredDeclaration
-  extends LetOrConstOrVarDeclarationBase {
+export interface LetOrVarNonDeclaredDeclaration extends LetOrConstOrVarDeclarationBase {
   /**
    * In a `let`/`var` declaration, the declarators may have definite assignment
    * assertions or initializers, but not both.

diff --git a/packages/ast-spec/src/element/AccessorProperty/spec.ts b/packages/ast-spec/src/element/AccessorProperty/spec.ts
@@ -4,13 +4,11 @@ import type {
   PropertyDefinitionNonComputedNameBase,
 } from '../../base/PropertyDefinitionBase';
 
-export interface AccessorPropertyComputedName
-  extends PropertyDefinitionComputedNameBase {
+export interface AccessorPropertyComputedName extends PropertyDefinitionComputedNameBase {
   type: AST_NODE_TYPES.AccessorProperty;
 }
 
-export interface AccessorPropertyNonComputedName
-  extends PropertyDefinitionNonComputedNameBase {
+export interface AccessorPropertyNonComputedName extends PropertyDefinitionNonComputedNameBase {
   type: AST_NODE_TYPES.AccessorProperty;
 }
 

diff --git a/packages/ast-spec/src/element/MethodDefinition/spec.ts b/packages/ast-spec/src/element/MethodDefinition/spec.ts
@@ -4,13 +4,11 @@ import type {
   MethodDefinitionComputedNameBase,
 } from '../../base/MethodDefinitionBase';
 
-export interface MethodDefinitionComputedName
-  extends MethodDefinitionComputedNameBase {
+export interface MethodDefinitionComputedName extends MethodDefinitionComputedNameBase {
   type: AST_NODE_TYPES.MethodDefinition;
 }
 
-export interface MethodDefinitionNonComputedName
-  extends ClassMethodDefinitionNonComputedNameBase {
+export interface MethodDefinitionNonComputedName extends ClassMethodDefinitionNonComputedNameBase {
   type: AST_NODE_TYPES.MethodDefinition;
 }
 

diff --git a/packages/ast-spec/src/element/PropertyDefinition/spec.ts b/packages/ast-spec/src/element/PropertyDefinition/spec.ts
@@ -4,13 +4,11 @@ import type {
   PropertyDefinitionComputedNameBase,
 } from '../../base/PropertyDefinitionBase';
 
-export interface PropertyDefinitionComputedName
-  extends PropertyDefinitionComputedNameBase {
+export interface PropertyDefinitionComputedName extends PropertyDefinitionComputedNameBase {
   type: AST_NODE_TYPES.PropertyDefinition;
 }
 
-export interface PropertyDefinitionNonComputedName
-  extends ClassPropertyDefinitionNonComputedNameBase {
+export interface PropertyDefinitionNonComputedName extends ClassPropertyDefinitionNonComputedNameBase {
   type: AST_NODE_TYPES.PropertyDefinition;
 }
 

diff --git a/packages/ast-spec/src/element/TSAbstractAccessorProperty/spec.ts b/packages/ast-spec/src/element/TSAbstractAccessorProperty/spec.ts
@@ -4,8 +4,7 @@ import type {
   PropertyDefinitionNonComputedNameBase,
 } from '../../base/PropertyDefinitionBase';
 
-export interface TSAbstractAccessorPropertyComputedName
-  extends PropertyDefinitionComputedNameBase {
+export interface TSAbstractAccessorPropertyComputedName extends PropertyDefinitionComputedNameBase {
   type: AST_NODE_TYPES.TSAbstractAccessorProperty;
   value: null;
 }

diff --git a/packages/ast-spec/src/element/TSAbstractMethodDefinition/spec.ts b/packages/ast-spec/src/element/TSAbstractMethodDefinition/spec.ts
@@ -4,8 +4,7 @@ import type {
   MethodDefinitionNonComputedNameBase,
 } from '../../base/MethodDefinitionBase';
 
-export interface TSAbstractMethodDefinitionComputedName
-  extends MethodDefinitionComputedNameBase {
+export interface TSAbstractMethodDefinitionComputedName extends MethodDefinitionComputedNameBase {
   type: AST_NODE_TYPES.TSAbstractMethodDefinition;
 }
 

diff --git a/packages/ast-spec/src/element/TSAbstractPropertyDefinition/spec.ts b/packages/ast-spec/src/element/TSAbstractPropertyDefinition/spec.ts
@@ -4,8 +4,7 @@ import type {
   PropertyDefinitionNonComputedNameBase,
 } from '../../base/PropertyDefinitionBase';
 
-export interface TSAbstractPropertyDefinitionComputedName
-  extends PropertyDefinitionComputedNameBase {
+export interface TSAbstractPropertyDefinitionComputedName extends PropertyDefinitionComputedNameBase {
   type: AST_NODE_TYPES.TSAbstractPropertyDefinition;
   value: null;
 }

diff --git a/packages/ast-spec/src/element/TSConstructSignatureDeclaration/spec.ts b/packages/ast-spec/src/element/TSConstructSignatureDeclaration/spec.ts
@@ -1,7 +1,6 @@
 import type { AST_NODE_TYPES } from '../../ast-node-types';
 import type { TSFunctionSignatureBase } from '../../base/TSFunctionSignatureBase';
 
-export interface TSConstructSignatureDeclaration
-  extends TSFunctionSignatureBase {
+export interface TSConstructSignatureDeclaration extends TSFunctionSignatureBase {
   type: AST_NODE_TYPES.TSConstructSignatureDeclaration;
 }
diff --git a/packages/ast-spec/src/element/TSMethodSignature/spec.ts b/packages/ast-spec/src/element/TSMethodSignature/spec.ts
@@ -28,8 +28,7 @@ export interface TSMethodSignatureComputedName extends TSMethodSignatureBase {
   computed: true;
   key: PropertyNameComputed;
 }
-export interface TSMethodSignatureNonComputedName
-  extends TSMethodSignatureBase {
+export interface TSMethodSignatureNonComputedName extends TSMethodSignatureBase {
   computed: false;
   key: PropertyNameNonComputed;
 }

diff --git a/packages/ast-spec/src/element/TSPropertySignature/spec.ts b/packages/ast-spec/src/element/TSPropertySignature/spec.ts
@@ -19,14 +19,12 @@ interface TSPropertySignatureBase extends BaseNode {
   typeAnnotation: TSTypeAnnotation | undefined;
 }
 
-export interface TSPropertySignatureComputedName
-  extends TSPropertySignatureBase {
+export interface TSPropertySignatureComputedName extends TSPropertySignatureBase {
   computed: true;
   key: PropertyNameComputed;
 }
 
-export interface TSPropertySignatureNonComputedName
-  extends TSPropertySignatureBase {
+export interface TSPropertySignatureNonComputedName extends TSPropertySignatureBase {
   computed: false;
   key: PropertyNameNonComputed;
 }

diff --git a/packages/ast-spec/src/expression/UnaryExpression/spec.ts b/packages/ast-spec/src/expression/UnaryExpression/spec.ts
@@ -1,8 +1,9 @@
 import type { AST_NODE_TYPES } from '../../ast-node-types';
 import type { UnaryExpressionBase } from '../../base/UnaryExpressionBase';
 
-interface UnaryExpressionSpecific<T extends string>
-  extends UnaryExpressionBase {
+interface UnaryExpressionSpecific<
+  T extends string,
+> extends UnaryExpressionBase {
   type: AST_NODE_TYPES.UnaryExpression;
   operator: T;
 }

diff --git a/...ast-spec/src/legacy-fixtures/basics/fixtures/type-parameters-comments-heritage/fixture.ts b/...ast-spec/src/legacy-fixtures/basics/fixtures/type-parameters-comments-heritage/fixture.ts
@@ -5,5 +5,6 @@ class foo2<
   /* aaa */ A /* bbb */ = 2 /* bbb */,
 > extends bar</* aaa */ A /* bbb */> {}
 interface bar</* aaa */ A /* bbb */> extends bar2</* aaa */ A /* bbb */> {}
-interface bar2</* aaa */ A /* bbb */ = 2 /* bbb */>
-  extends bar</* aaa */ A /* bbb */> {}
+interface bar2<
+  /* aaa */ A /* bbb */ = 2 /* bbb */,
+> extends bar</* aaa */ A /* bbb */> {}