AST Specification

The following auto-generated documentation describes the Abstract Syntax Tree (AST) generated by @typescript-eslint/typescript-estree for parsers such as @typescript-eslint/parser.

Enumerations

AST_NODE_TYPES

Enumeration Members

Enumeration Member	Value
`AccessorProperty`	`"AccessorProperty"`
`ArrayExpression`	`"ArrayExpression"`
`ArrayPattern`	`"ArrayPattern"`
`ArrowFunctionExpression`	`"ArrowFunctionExpression"`
`AssignmentExpression`	`"AssignmentExpression"`
`AssignmentPattern`	`"AssignmentPattern"`
`AwaitExpression`	`"AwaitExpression"`
`BinaryExpression`	`"BinaryExpression"`
`BlockStatement`	`"BlockStatement"`
`BreakStatement`	`"BreakStatement"`
`CallExpression`	`"CallExpression"`
`CatchClause`	`"CatchClause"`
`ChainExpression`	`"ChainExpression"`
`ClassBody`	`"ClassBody"`
`ClassDeclaration`	`"ClassDeclaration"`
`ClassExpression`	`"ClassExpression"`
`ConditionalExpression`	`"ConditionalExpression"`
`ContinueStatement`	`"ContinueStatement"`
`DebuggerStatement`	`"DebuggerStatement"`
`Decorator`	`"Decorator"`
`DoWhileStatement`	`"DoWhileStatement"`
`EmptyStatement`	`"EmptyStatement"`
`ExportAllDeclaration`	`"ExportAllDeclaration"`
`ExportDefaultDeclaration`	`"ExportDefaultDeclaration"`
`ExportNamedDeclaration`	`"ExportNamedDeclaration"`
`ExportSpecifier`	`"ExportSpecifier"`
`ExpressionStatement`	`"ExpressionStatement"`
`ForInStatement`	`"ForInStatement"`
`ForOfStatement`	`"ForOfStatement"`
`ForStatement`	`"ForStatement"`
`FunctionDeclaration`	`"FunctionDeclaration"`
`FunctionExpression`	`"FunctionExpression"`
`Identifier`	`"Identifier"`
`IfStatement`	`"IfStatement"`
`ImportAttribute`	`"ImportAttribute"`
`ImportDeclaration`	`"ImportDeclaration"`
`ImportDefaultSpecifier`	`"ImportDefaultSpecifier"`
`ImportExpression`	`"ImportExpression"`
`ImportNamespaceSpecifier`	`"ImportNamespaceSpecifier"`
`ImportSpecifier`	`"ImportSpecifier"`
`JSXAttribute`	`"JSXAttribute"`
`JSXClosingElement`	`"JSXClosingElement"`
`JSXClosingFragment`	`"JSXClosingFragment"`
`JSXElement`	`"JSXElement"`
`JSXEmptyExpression`	`"JSXEmptyExpression"`
`JSXExpressionContainer`	`"JSXExpressionContainer"`
`JSXFragment`	`"JSXFragment"`
`JSXIdentifier`	`"JSXIdentifier"`
`JSXMemberExpression`	`"JSXMemberExpression"`
`JSXNamespacedName`	`"JSXNamespacedName"`
`JSXOpeningElement`	`"JSXOpeningElement"`
`JSXOpeningFragment`	`"JSXOpeningFragment"`
`JSXSpreadAttribute`	`"JSXSpreadAttribute"`
`JSXSpreadChild`	`"JSXSpreadChild"`
`JSXText`	`"JSXText"`
`LabeledStatement`	`"LabeledStatement"`
`Literal`	`"Literal"`
`LogicalExpression`	`"LogicalExpression"`
`MemberExpression`	`"MemberExpression"`
`MetaProperty`	`"MetaProperty"`
`MethodDefinition`	`"MethodDefinition"`
`NewExpression`	`"NewExpression"`
`ObjectExpression`	`"ObjectExpression"`
`ObjectPattern`	`"ObjectPattern"`
`PrivateIdentifier`	`"PrivateIdentifier"`
`Program`	`"Program"`
`Property`	`"Property"`
`PropertyDefinition`	`"PropertyDefinition"`
`RestElement`	`"RestElement"`
`ReturnStatement`	`"ReturnStatement"`
`SequenceExpression`	`"SequenceExpression"`
`SpreadElement`	`"SpreadElement"`
`StaticBlock`	`"StaticBlock"`
`Super`	`"Super"`
`SwitchCase`	`"SwitchCase"`
`SwitchStatement`	`"SwitchStatement"`
`TSAbstractAccessorProperty`	`"TSAbstractAccessorProperty"`
`TSAbstractKeyword`	`"TSAbstractKeyword"`
`TSAbstractMethodDefinition`	`"TSAbstractMethodDefinition"`
`TSAbstractPropertyDefinition`	`"TSAbstractPropertyDefinition"`
`TSAnyKeyword`	`"TSAnyKeyword"`
`TSArrayType`	`"TSArrayType"`
`TSAsExpression`	`"TSAsExpression"`
`TSAsyncKeyword`	`"TSAsyncKeyword"`
`TSBigIntKeyword`	`"TSBigIntKeyword"`
`TSBooleanKeyword`	`"TSBooleanKeyword"`
`TSCallSignatureDeclaration`	`"TSCallSignatureDeclaration"`
`TSClassImplements`	`"TSClassImplements"`
`TSConditionalType`	`"TSConditionalType"`
`TSConstructSignatureDeclaration`	`"TSConstructSignatureDeclaration"`
`TSConstructorType`	`"TSConstructorType"`
`TSDeclareFunction`	`"TSDeclareFunction"`
`TSDeclareKeyword`	`"TSDeclareKeyword"`
`TSEmptyBodyFunctionExpression`	`"TSEmptyBodyFunctionExpression"`
`TSEnumBody`	`"TSEnumBody"`
`TSEnumDeclaration`	`"TSEnumDeclaration"`
`TSEnumMember`	`"TSEnumMember"`
`TSExportAssignment`	`"TSExportAssignment"`
`TSExportKeyword`	`"TSExportKeyword"`
`TSExternalModuleReference`	`"TSExternalModuleReference"`
`TSFunctionType`	`"TSFunctionType"`
`TSImportEqualsDeclaration`	`"TSImportEqualsDeclaration"`
`TSImportType`	`"TSImportType"`
`TSIndexSignature`	`"TSIndexSignature"`
`TSIndexedAccessType`	`"TSIndexedAccessType"`
`TSInferType`	`"TSInferType"`
`TSInstantiationExpression`	`"TSInstantiationExpression"`
`TSInterfaceBody`	`"TSInterfaceBody"`
`TSInterfaceDeclaration`	`"TSInterfaceDeclaration"`
`TSInterfaceHeritage`	`"TSInterfaceHeritage"`
`TSIntersectionType`	`"TSIntersectionType"`
`TSIntrinsicKeyword`	`"TSIntrinsicKeyword"`
`TSLiteralType`	`"TSLiteralType"`
`TSMappedType`	`"TSMappedType"`
`TSMethodSignature`	`"TSMethodSignature"`
`TSModuleBlock`	`"TSModuleBlock"`
`TSModuleDeclaration`	`"TSModuleDeclaration"`
`TSNamedTupleMember`	`"TSNamedTupleMember"`
`TSNamespaceExportDeclaration`	`"TSNamespaceExportDeclaration"`
`TSNeverKeyword`	`"TSNeverKeyword"`
`TSNonNullExpression`	`"TSNonNullExpression"`
`TSNullKeyword`	`"TSNullKeyword"`
`TSNumberKeyword`	`"TSNumberKeyword"`
`TSObjectKeyword`	`"TSObjectKeyword"`
`TSOptionalType`	`"TSOptionalType"`
`TSParameterProperty`	`"TSParameterProperty"`
`TSPrivateKeyword`	`"TSPrivateKeyword"`
`TSPropertySignature`	`"TSPropertySignature"`
`TSProtectedKeyword`	`"TSProtectedKeyword"`
`TSPublicKeyword`	`"TSPublicKeyword"`
`TSQualifiedName`	`"TSQualifiedName"`
`TSReadonlyKeyword`	`"TSReadonlyKeyword"`
`TSRestType`	`"TSRestType"`
`TSSatisfiesExpression`	`"TSSatisfiesExpression"`
`TSStaticKeyword`	`"TSStaticKeyword"`
`TSStringKeyword`	`"TSStringKeyword"`
`TSSymbolKeyword`	`"TSSymbolKeyword"`
`TSTemplateLiteralType`	`"TSTemplateLiteralType"`
`TSThisType`	`"TSThisType"`
`TSTupleType`	`"TSTupleType"`
`TSTypeAliasDeclaration`	`"TSTypeAliasDeclaration"`
`TSTypeAnnotation`	`"TSTypeAnnotation"`
`TSTypeAssertion`	`"TSTypeAssertion"`
`TSTypeLiteral`	`"TSTypeLiteral"`
`TSTypeOperator`	`"TSTypeOperator"`
`TSTypeParameter`	`"TSTypeParameter"`
`TSTypeParameterDeclaration`	`"TSTypeParameterDeclaration"`
`TSTypeParameterInstantiation`	`"TSTypeParameterInstantiation"`
`TSTypePredicate`	`"TSTypePredicate"`
`TSTypeQuery`	`"TSTypeQuery"`
`TSTypeReference`	`"TSTypeReference"`
`TSUndefinedKeyword`	`"TSUndefinedKeyword"`
`TSUnionType`	`"TSUnionType"`
`TSUnknownKeyword`	`"TSUnknownKeyword"`
`TSVoidKeyword`	`"TSVoidKeyword"`
`TaggedTemplateExpression`	`"TaggedTemplateExpression"`
`TemplateElement`	`"TemplateElement"`
`TemplateLiteral`	`"TemplateLiteral"`
`ThisExpression`	`"ThisExpression"`
`ThrowStatement`	`"ThrowStatement"`
`TryStatement`	`"TryStatement"`
`UnaryExpression`	`"UnaryExpression"`
`UpdateExpression`	`"UpdateExpression"`
`VariableDeclaration`	`"VariableDeclaration"`
`VariableDeclarator`	`"VariableDeclarator"`
`WhileStatement`	`"WhileStatement"`
`WithStatement`	`"WithStatement"`
`YieldExpression`	`"YieldExpression"`

AST_TOKEN_TYPES

Enumeration Members

Enumeration Member	Value
`Block`	`"Block"`
`Boolean`	`"Boolean"`
`Identifier`	`"Identifier"`
`JSXIdentifier`	`"JSXIdentifier"`
`JSXText`	`"JSXText"`
`Keyword`	`"Keyword"`
`Line`	`"Line"`
`Null`	`"Null"`
`Numeric`	`"Numeric"`
`Punctuator`	`"Punctuator"`
`RegularExpression`	`"RegularExpression"`
`String`	`"String"`
`Template`	`"Template"`

Interfaces

AccessorPropertyComputedName

Extends

PropertyDefinitionComputedNameBase

Properties

Property	Type	Overrides
`type`	`AccessorProperty`	`PropertyDefinitionComputedNameBase.type`

AccessorPropertyNonComputedName

Extends

PropertyDefinitionNonComputedNameBase

Properties

Property	Type	Overrides
`type`	`AccessorProperty`	`PropertyDefinitionNonComputedNameBase.type`

ArrayExpression

Extends

BaseNode

Properties

Property	Type	Description	Overrides
`elements`	(`null` \| `Expression` \| `SpreadElement`)[]	an element will be `null` in the case of a sparse array: `[1, ,3]`	-
`type`	`ArrayExpression`	-	`BaseNode`.`type`

ArrayPattern

Extends

BaseNode

Properties

Property	Type	Overrides
`decorators`	`Decorator`[]	-
`elements`	(`null` \| `DestructuringPattern`)[]	-
`optional`	`boolean`	-
`type`	`ArrayPattern`	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TSTypeAnnotation`	-

ArrowFunctionExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`async`	`boolean`	-
`body`	`Expression` \| `BlockStatement`	-
`expression`	`boolean`	-
`generator`	`boolean`	-
`id`	`null`	-
`params`	`Parameter`[]	-
`returnType`	`undefined` \| `TSTypeAnnotation`	-
`type`	`ArrowFunctionExpression`	`BaseNode`.`type`
`typeParameters`	`undefined` \| `TSTypeParameterDeclaration`	-

AssignmentExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`left`	`Expression`	-
`operator`	`ValueOf` <`AssignmentOperatorToText`>	-
`right`	`Expression`	-
`type`	`AssignmentExpression`	`BaseNode`.`type`

AssignmentOperatorToText

Extended by

PunctuatorTokenToText

Properties

Property	Type
`64`	`"="`
`65`	`"+="`
`66`	`"-="`
`67`	`"*="`
`68`	`"**="`
`69`	`"/="`
`70`	`"%="`
`71`	`"<<="`
`72`	`">>="`
`73`	`">>>="`
`74`	`"&="`
`75`	"\|="
`76`	"\|\|="
`77`	`"&&="`
`78`	`"??="`
`79`	`"^="`

AssignmentPattern

Extends

BaseNode

Properties

Property	Type	Overrides
`decorators`	`Decorator`[]	-
`left`	`BindingName`	-
`optional`	`boolean`	-
`right`	`Expression`	-
`type`	`AssignmentPattern`	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TSTypeAnnotation`	-

AwaitExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`Expression`	-
`type`	`AwaitExpression`	`BaseNode`.`type`

BaseNode

Extends

NodeOrTokenData

Extended by

Properties

Property	Type	Overrides
`type`	`AST_NODE_TYPES`	`NodeOrTokenData`.`type`

BigIntLiteral

Extends

LiteralBase

Properties

Property	Type	Overrides
`bigint`	`string`	-
`value`	`null` \| `bigint`	`LiteralBase.value`

BinaryExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`left`	`PrivateIdentifier` \| `Expression`	-
`operator`	`ValueOf` <`BinaryOperatorToText`>	-
`right`	`Expression`	-
`type`	`BinaryExpression`	`BaseNode`.`type`

BinaryOperatorToText

Properties

Property	Type
`103`	`"in"`
`104`	`"instanceof"`
`30`	`"<"`
`32`	`">"`
`33`	`"<="`
`34`	`">="`
`35`	`"=="`
`36`	`"!="`
`37`	`"==="`
`38`	`"!=="`
`40`	`"+"`
`41`	`"-"`
`42`	`"*"`
`43`	`"**"`
`44`	`"/"`
`45`	`"%"`
`48`	`"<<"`
`49`	`">>"`
`50`	`">>>"`
`51`	`"&"`
`52`	"\|"
`53`	`"^"`
`56`	`"&&"`
`57`	"\|\|"

BlockComment

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Block`	`BaseToken.type`

BlockStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`[]	-
`type`	`BlockStatement`	`BaseNode`.`type`

BooleanLiteral

Extends

LiteralBase

Properties

Property	Type	Overrides
`raw`	`"false"` \| `"true"`	`LiteralBase.raw`
`value`	`boolean`	`LiteralBase.value`

BooleanToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Boolean`	`BaseToken.type`

BreakStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`label`	`null` \| `Identifier`	-
`type`	`BreakStatement`	`BaseNode`.`type`

CallExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`arguments`	`CallExpressionArgument`[]	-
`callee`	`Expression`	-
`optional`	`boolean`	-
`type`	`CallExpression`	`BaseNode`.`type`
`typeArguments`	`undefined` \| `TSTypeParameterInstantiation`	-

CatchClause

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`BlockStatement`	-
`param`	`null` \| `BindingName`	-
`type`	`CatchClause`	`BaseNode`.`type`

ChainExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`ChainElement`	-
`type`	`ChainExpression`	`BaseNode`.`type`

ClassBody

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`ClassElement`[]	-
`type`	`ClassBody`	`BaseNode`.`type`

ClassDeclarationWithName

A normal class declaration:

class A {}

Extends

ClassDeclarationBase

Properties

Property	Type	Overrides
`id`	`Identifier`	`ClassDeclarationBase.id`

ClassDeclarationWithOptionalName

Default-exported class declarations have optional names:

export default class {}

Extends

ClassDeclarationBase

Properties

Property	Type	Overrides
`id`	`null` \| `Identifier`	`ClassDeclarationBase.id`

ClassExpression

Extends

ClassBase

Properties

Property	Type	Overrides
`abstract`	`false`	`ClassBase.abstract`
`declare`	`false`	`ClassBase.declare`
`type`	`ClassExpression`	`ClassBase.type`

ConditionalExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`alternate`	`Expression`	-
`consequent`	`Expression`	-
`test`	`Expression`	-
`type`	`ConditionalExpression`	`BaseNode`.`type`

ConstDeclaration

Extends

LetOrConstOrVarDeclarationBase

Properties

Property Type Description Overrides

Property	Type	Description	Overrides
`declarations`	`VariableDeclaratorMaybeInit`[]	In a `declare const` declaration, the declarators may have initializers, but not definite assignment assertions. Each declarator cannot have both an initializer and a type annotation. Even if the declaration has no `declare`, it may still be ambient and have no initializer.	`LetOrConstOrVarDeclarationBase.declarations`
`kind`	`"const"`	-	`LetOrConstOrVarDeclarationBase.kind`

declarations

VariableDeclaratorMaybeInit[]

In a declare const declaration, the declarators may have initializers, but not definite assignment assertions. Each declarator cannot have both an initializer and a type annotation.

Even if the declaration has no declare, it may still be ambient and have no initializer.

LetOrConstOrVarDeclarationBase.declarations

kind "const" - LetOrConstOrVarDeclarationBase.kind

ContinueStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`label`	`null` \| `Identifier`	-
`type`	`ContinueStatement`	`BaseNode`.`type`

DebuggerStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`DebuggerStatement`	`BaseNode`.`type`

Decorator

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`LeftHandSideExpression`	-
`type`	`Decorator`	`BaseNode`.`type`

DoWhileStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`	-
`test`	`Expression`	-
`type`	`DoWhileStatement`	`BaseNode`.`type`

EmptyStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`EmptyStatement`	`BaseNode`.`type`

ExportAllDeclaration

Extends

BaseNode

Properties

Property	Type	Description	Overrides
~~`assertions`~~	`ImportAttribute`[]	The assertions declared for the export. Example `export * from 'mod' assert { type: 'json' };` Deprecated Replaced with `attributes`.	-
`attributes`	`ImportAttribute`[]	The attributes declared for the export. Example `export * from 'mod' with { type: 'json' };`	-
`exportKind`	`ExportAndImportKind`	The kind of the export.	-
`exported`	`null` \| `Identifier`	The name for the exported items (`as X`). `null` if no name is assigned.	-
`source`	`StringLiteral`	The source module being exported from.	-
`type`	`ExportAllDeclaration`	-	`BaseNode`.`type`

ExportDefaultDeclaration

Extends

BaseNode

Properties

Property	Type	Description	Overrides
`declaration`	`DefaultExportDeclarations`	The declaration being exported.	-
`exportKind`	`"value"`	The kind of the export. Always `value` for default exports.	-
`type`	`ExportDefaultDeclaration`	-	`BaseNode`.`type`

ExportNamedDeclarationWithSource

Export names from another module.

export { a, b } from 'mod';

Extends

ExportNamedDeclarationBase

Properties

Property	Type	Overrides
`declaration`	`null`	`ExportNamedDeclarationBase.declaration`
`source`	`StringLiteral`	`ExportNamedDeclarationBase.source`

ExportNamedDeclarationWithoutSourceWithMultiple

Exporting names from the current module.

export {};
export { a, b };

Extends

ExportNamedDeclarationBase

Properties

Property	Type	Description	Overrides
~~`assertions`~~	`ImportAttribute`[]	This will always be an empty array. Deprecated Replaced with `attributes`.	`ExportNamedDeclarationBase.assertions`
`attributes`	`ImportAttribute`[]	This will always be an empty array.	`ExportNamedDeclarationBase.attributes`
`declaration`	`null`	-	`ExportNamedDeclarationBase.declaration`
`source`	`null`	-	`ExportNamedDeclarationBase.source`

ExportNamedDeclarationWithoutSourceWithSingle

Exporting a single named declaration.

export const x = 1;

Extends

ExportNamedDeclarationBase

Properties

Property	Type	Description	Overrides
~~`assertions`~~	`ImportAttribute`[]	This will always be an empty array. Deprecated Replaced with `attributes`.	`ExportNamedDeclarationBase.assertions`
`attributes`	`ImportAttribute`[]	This will always be an empty array.	`ExportNamedDeclarationBase.attributes`
`declaration`	`NamedExportDeclarations`	-	`ExportNamedDeclarationBase.declaration`
`source`	`null`	-	`ExportNamedDeclarationBase.source`
`specifiers`	`ExportSpecifier`[]	This will always be an empty array.	`ExportNamedDeclarationBase.specifiers`

ExportSpecifier

Extends

BaseNode

Properties

Property	Type	Overrides
`exportKind`	`ExportAndImportKind`	-
`exported`	`Identifier`	-
`local`	`Identifier`	-
`type`	`ExportSpecifier`	`BaseNode`.`type`

ExpressionStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`directive`	`undefined` \| `string`	-
`expression`	`Expression`	-
`type`	`ExpressionStatement`	`BaseNode`.`type`

ForInStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`	-
`left`	`ForInitialiser`	-
`right`	`Expression`	-
`type`	`ForInStatement`	`BaseNode`.`type`

ForOfStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`await`	`boolean`	-
`body`	`Statement`	-
`left`	`ForOfInitialiser`	-
`right`	`Expression`	-
`type`	`ForOfStatement`	`BaseNode`.`type`

ForStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`	-
`init`	\| `null` \| `Identifier` \| `ArrayExpression` \| `ArrayPattern` \| `ArrowFunctionExpression` \| `AssignmentExpression` \| `AwaitExpression` \| `BinaryExpression` \| `CallExpression` \| `ChainExpression` \| `ClassExpression` \| `ConditionalExpression` \| `FunctionExpression` \| `ImportExpression` \| `JSXElement` \| `JSXFragment` \| `BigIntLiteral` \| `BooleanLiteral` \| `NullLiteral` \| `NumberLiteral` \| `RegExpLiteral` \| `StringLiteral` \| `TemplateLiteral` \| `LogicalExpression` \| `MemberExpressionComputedName` \| `MemberExpressionNonComputedName` \| `MetaProperty` \| `NewExpression` \| `ObjectExpression` \| `ObjectPattern` \| `SequenceExpression` \| `Super` \| `TaggedTemplateExpression` \| `ThisExpression` \| `TSAsExpression` \| `TSInstantiationExpression` \| `TSNonNullExpression` \| `TSSatisfiesExpression` \| `TSTypeAssertion` \| `UnaryExpression` \| `UpdateExpression` \| `YieldExpression` \| `ConstDeclaration` \| `LetOrVarDeclaredDeclaration` \| `LetOrVarNonDeclaredDeclaration`	-
`test`	`null` \| `Expression`	-
`type`	`ForStatement`	`BaseNode`.`type`
`update`	`null` \| `Expression`	-

FunctionDeclarationWithName

A normal function declaration:

function f() {}

Extends

FunctionDeclarationBase

Properties

Property	Type	Overrides
`id`	`Identifier`	`FunctionDeclarationBase.id`

FunctionDeclarationWithOptionalName

Default-exported function declarations have optional names:

export default function () {}

Extends

FunctionDeclarationBase

Properties

Property	Type	Overrides
`id`	`null` \| `Identifier`	`FunctionDeclarationBase.id`

FunctionExpression

Extends

FunctionBase

Properties

Property	Type	Overrides
`body`	`BlockStatement`	`FunctionBase.body`
`expression`	`false`	`FunctionBase.expression`
`type`	`FunctionExpression`	`FunctionBase.type`

Identifier

Extends

BaseNode

Properties

Property	Type	Overrides
`decorators`	`Decorator`[]	-
`name`	`string`	-
`optional`	`boolean`	-
`type`	`Identifier`	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TSTypeAnnotation`	-

IdentifierToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Identifier`	`BaseToken.type`

IfStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`alternate`	`null` \| `Statement`	-
`consequent`	`Statement`	-
`test`	`Expression`	-
`type`	`IfStatement`	`BaseNode`.`type`

ImportAttribute

Extends

BaseNode

Properties

Property	Type	Overrides
`key`	`Identifier` \| `Literal`	-
`type`	`ImportAttribute`	`BaseNode`.`type`
`value`	`Literal`	-

ImportDeclaration

Extends

BaseNode

Properties

Property	Type	Description	Overrides
~~`assertions`~~	`ImportAttribute`[]	The assertions declared for the export. Example `import * from 'mod' assert { type: 'json' };` Deprecated Replaced with `attributes`.	-
`attributes`	`ImportAttribute`[]	The attributes declared for the export. Example `import * from 'mod' with { type: 'json' };`	-
`importKind`	`ExportAndImportKind`	The kind of the import.	-
`source`	`StringLiteral`	The source module being imported from.	-
`specifiers`	`ImportClause`[]	The specifiers being imported. If this is an empty array then either there are no specifiers: `import from 'mod';` Or it is a side-effect import: `import 'mod';`	-
`type`	`ImportDeclaration`	-	`BaseNode`.`type`

ImportDefaultSpecifier

Extends

BaseNode

Properties

Property	Type	Overrides
`local`	`Identifier`	-
`type`	`ImportDefaultSpecifier`	`BaseNode`.`type`

ImportExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`attributes`	`null` \| `Expression`	-
`source`	`Expression`	-
`type`	`ImportExpression`	`BaseNode`.`type`

ImportNamespaceSpecifier

Extends

BaseNode

Properties

Property	Type	Overrides
`local`	`Identifier`	-
`type`	`ImportNamespaceSpecifier`	`BaseNode`.`type`

ImportSpecifier

Extends

BaseNode

Properties

Property	Type	Overrides
`importKind`	`ExportAndImportKind`	-
`imported`	`Identifier`	-
`local`	`Identifier`	-
`type`	`ImportSpecifier`	`BaseNode`.`type`

JSXAttribute

Extends

BaseNode

Properties

Property	Type	Overrides
`name`	`JSXIdentifier` \| `JSXNamespacedName`	-
`type`	`JSXAttribute`	`BaseNode`.`type`
`value`	`null` \| `JSXElement` \| `Literal` \| `JSXExpression`	-

JSXClosingElement

Extends

BaseNode

Properties

Property	Type	Overrides
`name`	`JSXTagNameExpression`	-
`type`	`JSXClosingElement`	`BaseNode`.`type`

JSXClosingFragment

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`JSXClosingFragment`	`BaseNode`.`type`

JSXElement

Extends

BaseNode

Properties

Property	Type	Overrides
`children`	`JSXChild`[]	-
`closingElement`	`null` \| `JSXClosingElement`	-
`openingElement`	`JSXOpeningElement`	-
`type`	`JSXElement`	`BaseNode`.`type`

JSXEmptyExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`JSXEmptyExpression`	`BaseNode`.`type`

JSXExpressionContainer

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression` \| `JSXEmptyExpression`	-
`type`	`JSXExpressionContainer`	`BaseNode`.`type`

JSXFragment

Extends

BaseNode

Properties

Property	Type	Overrides
`children`	`JSXChild`[]	-
`closingFragment`	`JSXClosingFragment`	-
`openingFragment`	`JSXOpeningFragment`	-
`type`	`JSXFragment`	`BaseNode`.`type`

JSXIdentifier

Extends

BaseNode

Properties

Property	Type	Overrides
`name`	`string`	-
`type`	`JSXIdentifier`	`BaseNode`.`type`

JSXIdentifierToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`JSXIdentifier`	`BaseToken.type`

JSXMemberExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`object`	`JSXTagNameExpression`	-
`property`	`JSXIdentifier`	-
`type`	`JSXMemberExpression`	`BaseNode`.`type`

JSXNamespacedName

Extends

BaseNode

Properties

Property	Type	Overrides
`name`	`JSXIdentifier`	-
`namespace`	`JSXIdentifier`	-
`type`	`JSXNamespacedName`	`BaseNode`.`type`

JSXOpeningElement

Extends

BaseNode

Properties

Property	Type	Overrides
`attributes`	(`JSXAttribute` \| `JSXSpreadAttribute`)[]	-
`name`	`JSXTagNameExpression`	-
`selfClosing`	`boolean`	-
`type`	`JSXOpeningElement`	`BaseNode`.`type`
`typeArguments`	`undefined` \| `TSTypeParameterInstantiation`	-

JSXOpeningFragment

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`JSXOpeningFragment`	`BaseNode`.`type`

JSXSpreadAttribute

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`Expression`	-
`type`	`JSXSpreadAttribute`	`BaseNode`.`type`

JSXSpreadChild

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression` \| `JSXEmptyExpression`	-
`type`	`JSXSpreadChild`	`BaseNode`.`type`

JSXText

Extends

BaseNode

Properties

Property	Type	Overrides
`raw`	`string`	-
`type`	`JSXText`	`BaseNode`.`type`
`value`	`string`	-

JSXTextToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`JSXText`	`BaseToken.type`

KeywordToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Keyword`	`BaseToken.type`

LabeledStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`	-
`label`	`Identifier`	-
`type`	`LabeledStatement`	`BaseNode`.`type`

LetOrVarDeclaredDeclaration

Extends

LetOrConstOrVarDeclarationBase

Properties

Property Type Description Overrides

declarations

VariableDeclaratorNoInit[]

In a declare let declaration, the declarators must not have definite assignment assertions or initializers.

Example

using x = 1;using y =1, z = 2;

LetOrConstOrVarDeclarationBase.declarations

declare true - LetOrConstOrVarDeclarationBase.declare

kind "let" | "var" - LetOrConstOrVarDeclarationBase.kind

LetOrVarNonDeclaredDeclaration

Extends

LetOrConstOrVarDeclarationBase

Properties

Property	Type	Description	Overrides
`declarations`	(`VariableDeclaratorMaybeInit` \| `VariableDeclaratorDefiniteAssignment`)[]	In a `let`/`var` declaration, the declarators may have definite assignment assertions or initializers, but not both.	`LetOrConstOrVarDeclarationBase.declarations`
`declare`	`false`	-	`LetOrConstOrVarDeclarationBase.declare`
`kind`	`"let"` \| `"var"`	-	`LetOrConstOrVarDeclarationBase.kind`

LineComment

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Line`	`BaseToken.type`

LogicalExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`left`	`Expression`	-
`operator`	`"&&"` \| "\|\|" \| `"??"`	-
`right`	`Expression`	-
`type`	`LogicalExpression`	`BaseNode`.`type`

MemberExpressionComputedName

Extends

MemberExpressionBase

Properties

Property	Type	Overrides
`computed`	`true`	`MemberExpressionBase.computed`
`property`	`Expression`	`MemberExpressionBase.property`
`type`	`MemberExpression`	`MemberExpressionBase.type`

MemberExpressionNonComputedName

Extends

MemberExpressionBase

Properties

Property	Type	Overrides
`computed`	`false`	`MemberExpressionBase.computed`
`property`	`Identifier` \| `PrivateIdentifier`	`MemberExpressionBase.property`
`type`	`MemberExpression`	`MemberExpressionBase.type`

MetaProperty

Extends

BaseNode

Properties

Property	Type	Overrides
`meta`	`Identifier`	-
`property`	`Identifier`	-
`type`	`MetaProperty`	`BaseNode`.`type`

MethodDefinitionComputedName

Extends

MethodDefinitionComputedNameBase

Properties

Property	Type	Overrides
`type`	`MethodDefinition`	`MethodDefinitionComputedNameBase.type`

MethodDefinitionNonComputedName

Extends

ClassMethodDefinitionNonComputedNameBase

Properties

Property	Type	Overrides
`type`	`MethodDefinition`	`ClassMethodDefinitionNonComputedNameBase.type`

NewExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`arguments`	`CallExpressionArgument`[]	-
`callee`	`Expression`	-
`type`	`NewExpression`	`BaseNode`.`type`
`typeArguments`	`undefined` \| `TSTypeParameterInstantiation`	-

NodeOrTokenData

Extended by

Properties

Property Type Description

loc

SourceLocation

The source location information of the node.

The loc property is defined as nullable by ESTree, but ESLint requires this property.

range Range -

type string -

NullLiteral

Extends

LiteralBase

Properties

Property	Type	Overrides
`raw`	`"null"`	`LiteralBase.raw`
`value`	`null`	`LiteralBase.value`

NullToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Null`	`BaseToken.type`

NumberLiteral

Extends

LiteralBase

Properties

Property	Type	Overrides
`value`	`number`	`LiteralBase.value`

NumericToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Numeric`	`BaseToken.type`

ObjectExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`properties`	`ObjectLiteralElement`[]	-
`type`	`ObjectExpression`	`BaseNode`.`type`

ObjectPattern

Extends

BaseNode

Properties

Property	Type	Overrides
`decorators`	`Decorator`[]	-
`optional`	`boolean`	-
`properties`	(`RestElement` \| `Property`)[]	-
`type`	`ObjectPattern`	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TSTypeAnnotation`	-

Position

Properties

Property	Type	Description
`column`	`number`	Column number on the line (0-indexed)
`line`	`number`	Line number (1-indexed)

PrivateIdentifier

Extends

BaseNode

Properties

Property	Type	Overrides
`name`	`string`	-
`type`	`PrivateIdentifier`	`BaseNode`.`type`

Program

Extends

NodeOrTokenData

Properties

Property	Type	Overrides
`body`	`ProgramStatement`[]	-
`comments`	`undefined` \| `Comment`[]	-
`sourceType`	`"module"` \| `"script"`	-
`tokens`	`undefined` \| `Token`[]	-
`type`	`Program`	`NodeOrTokenData`.`type`

PropertyComputedName

Extends

PropertyBase

Properties

Property	Type	Overrides
`computed`	`true`	`PropertyBase.computed`
`key`	`Expression`	`PropertyBase.key`

PropertyDefinitionComputedName

Extends

PropertyDefinitionComputedNameBase

Properties

Property	Type	Overrides
`type`	`PropertyDefinition`	`PropertyDefinitionComputedNameBase.type`

PropertyDefinitionNonComputedName

Extends

ClassPropertyDefinitionNonComputedNameBase

Properties

Property	Type	Overrides
`type`	`PropertyDefinition`	`ClassPropertyDefinitionNonComputedNameBase.type`

PropertyNonComputedName

Extends

PropertyBase

Properties

Property	Type	Overrides
`computed`	`false`	`PropertyBase.computed`
`key`	`PropertyNameNonComputed`	`PropertyBase.key`

PunctuatorToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Punctuator`	`BaseToken.type`
`value`	`ValueOf` <`PunctuatorTokenToText`>	`BaseToken.value`

PunctuatorTokenToText

Extends

AssignmentOperatorToText

Properties

Property	Type
`19`	`"{"`
`20`	`"}"`
`21`	`"("`
`22`	`")"`
`23`	`"["`
`24`	`"]"`
`25`	`"."`
`26`	`"..."`
`27`	`";"`
`28`	`","`
`29`	`"?."`
`30`	`"<"`
`31`	`"</"`
`32`	`">"`
`33`	`"<="`
`34`	`">="`
`35`	`"=="`
`36`	`"!="`
`37`	`"==="`
`38`	`"!=="`
`39`	`"=>"`
`40`	`"+"`
`41`	`"-"`
`42`	`"*"`
`43`	`"**"`
`44`	`"/"`
`45`	`"%"`
`46`	`"++"`
`47`	`"--"`
`48`	`"<<"`
`49`	`">>"`
`50`	`">>>"`
`51`	`"&"`
`52`	"\|"
`53`	`"^"`
`54`	`"!"`
`55`	`"~"`
`56`	`"&&"`
`57`	"\|\|"
`58`	`"?"`
`59`	`":"`
`60`	`"@"`
`61`	`"??"`
`62`	"`"
`63`	`"#"`

RegExpLiteral

Extends

LiteralBase

Properties

Property	Type	Overrides
`regex`	`object`	-
`regex.flags`	`string`	-
`regex.pattern`	`string`	-
`value`	`null` \| `RegExp`	`LiteralBase.value`

RegularExpressionToken

Extends

BaseToken

Properties

Property	Type	Overrides
`regex`	`object`	-
`regex.flags`	`string`	-
`regex.pattern`	`string`	-
`type`	`RegularExpression`	`BaseToken.type`

RestElement

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`DestructuringPattern`	-
`decorators`	`Decorator`[]	-
`optional`	`boolean`	-
`type`	`RestElement`	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TSTypeAnnotation`	-
`value`	`undefined` \| `AssignmentPattern`	-

ReturnStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`null` \| `Expression`	-
`type`	`ReturnStatement`	`BaseNode`.`type`

SequenceExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`expressions`	`Expression`[]	-
`type`	`SequenceExpression`	`BaseNode`.`type`

SourceLocation

Properties

Property	Type	Description
`end`	`Position`	The position of the first character after the parsed source region
`start`	`Position`	The position of the first character of the parsed source region

SpreadElement

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`Expression`	-
`type`	`SpreadElement`	`BaseNode`.`type`

StaticBlock

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`[]	-
`type`	`StaticBlock`	`BaseNode`.`type`

StringLiteral

Extends

LiteralBase

Properties

Property	Type	Overrides
`value`	`string`	`LiteralBase.value`

StringToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`String`	`BaseToken.type`

Super

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`Super`	`BaseNode`.`type`

SwitchCase

Extends

BaseNode

Properties

Property	Type	Overrides
`consequent`	`Statement`[]	-
`test`	`null` \| `Expression`	-
`type`	`SwitchCase`	`BaseNode`.`type`

SwitchStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`cases`	`SwitchCase`[]	-
`discriminant`	`Expression`	-
`type`	`SwitchStatement`	`BaseNode`.`type`

TSAbstractAccessorPropertyComputedName

Extends

PropertyDefinitionComputedNameBase

Properties

Property	Type	Overrides
`type`	`TSAbstractAccessorProperty`	`PropertyDefinitionComputedNameBase.type`
`value`	`null`	`PropertyDefinitionComputedNameBase.value`

TSAbstractAccessorPropertyNonComputedName

Extends

PropertyDefinitionNonComputedNameBase

Properties

Property	Type	Overrides
`type`	`TSAbstractAccessorProperty`	`PropertyDefinitionNonComputedNameBase.type`
`value`	`null`	`PropertyDefinitionNonComputedNameBase.value`

TSAbstractKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSAbstractKeyword`	`BaseNode`.`type`

TSAbstractMethodDefinitionComputedName

Extends

MethodDefinitionComputedNameBase

Properties

Property	Type	Overrides
`type`	`TSAbstractMethodDefinition`	`MethodDefinitionComputedNameBase.type`

TSAbstractMethodDefinitionNonComputedName

Extends

MethodDefinitionNonComputedNameBase

Properties

Property	Type	Overrides
`type`	`TSAbstractMethodDefinition`	`MethodDefinitionNonComputedNameBase.type`

TSAbstractPropertyDefinitionComputedName

Extends

PropertyDefinitionComputedNameBase

Properties

Property	Type	Overrides
`type`	`TSAbstractPropertyDefinition`	`PropertyDefinitionComputedNameBase.type`
`value`	`null`	`PropertyDefinitionComputedNameBase.value`

TSAbstractPropertyDefinitionNonComputedName

Extends

PropertyDefinitionNonComputedNameBase

Properties

Property	Type	Overrides
`type`	`TSAbstractPropertyDefinition`	`PropertyDefinitionNonComputedNameBase.type`
`value`	`null`	`PropertyDefinitionNonComputedNameBase.value`

TSAnyKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSAnyKeyword`	`BaseNode`.`type`

TSArrayType

Extends

BaseNode

Properties

Property	Type	Overrides
`elementType`	`TypeNode`	-
`type`	`TSArrayType`	`BaseNode`.`type`

TSAsExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression`	-
`type`	`TSAsExpression`	`BaseNode`.`type`
`typeAnnotation`	`TypeNode`	-

TSAsyncKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSAsyncKeyword`	`BaseNode`.`type`

TSBigIntKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSBigIntKeyword`	`BaseNode`.`type`

TSBooleanKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSBooleanKeyword`	`BaseNode`.`type`

TSCallSignatureDeclaration

Extends

TSFunctionSignatureBase

Properties

Property	Type	Overrides
`type`	`TSCallSignatureDeclaration`	`TSFunctionSignatureBase.type`

TSClassImplements

Extends

TSHeritageBase

Properties

Property	Type	Overrides
`type`	`TSClassImplements`	`TSHeritageBase.type`

TSConditionalType

Extends

BaseNode

Properties

Property	Type	Overrides
`checkType`	`TypeNode`	-
`extendsType`	`TypeNode`	-
`falseType`	`TypeNode`	-
`trueType`	`TypeNode`	-
`type`	`TSConditionalType`	`BaseNode`.`type`

TSConstructSignatureDeclaration

Extends

TSFunctionSignatureBase

Properties

Property	Type	Overrides
`type`	`TSConstructSignatureDeclaration`	`TSFunctionSignatureBase.type`

TSConstructorType

Extends

TSFunctionSignatureBase

Properties

Property	Type	Overrides
`abstract`	`boolean`	-
`type`	`TSConstructorType`	`TSFunctionSignatureBase.type`

TSDeclareFunctionNoDeclare

Function declaration without the declare keyword:

function foo(): void;

This can either be an overload signature or a declaration in an ambient context (e.g. declare module)

Extends

TSDeclareFunctionBase

Properties

Property	Type	Description	Overrides
`declare`	`false`	-	`TSDeclareFunctionBase.declare`
`generator`	`false`	TS1221: Generators are not allowed in an ambient context. TS1222: An overload signature cannot be declared as a generator.	`TSDeclareFunctionBase.generator`

TSDeclareFunctionWithDeclare

Function declaration with the declare keyword:

declare function foo(): void;

Extends

TSDeclareFunctionBase

Properties

Property	Type	Description	Overrides
`async`	`false`	TS1040: 'async' modifier cannot be used in an ambient context.	`TSDeclareFunctionBase.async`
`declare`	`true`	-	`TSDeclareFunctionBase.declare`
`generator`	`false`	TS1221: Generators are not allowed in an ambient context.	`TSDeclareFunctionBase.generator`

TSDeclareKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSDeclareKeyword`	`BaseNode`.`type`

TSEmptyBodyFunctionExpression

Extends

FunctionBase

Properties

Property	Type	Overrides
`body`	`null`	`FunctionBase.body`
`id`	`null`	`FunctionBase.id`
`type`	`TSEmptyBodyFunctionExpression`	`FunctionBase.type`

TSEnumBody

Extends

BaseNode

Properties

Property	Type	Overrides
`members`	`TSEnumMember`[]	-
`type`	`TSEnumBody`	`BaseNode`.`type`

TSEnumDeclaration

Extends

BaseNode

Properties

Property	Type	Description	Overrides
`body`	`TSEnumBody`	The body of the enum.	-
`const`	`boolean`	Whether this is a `const` enum. Example `const enum Foo`	-
`declare`	`boolean`	Whether this is a `declare`d enum. Example `declare enum Foo`	-
`id`	`Identifier`	The enum name.	-
~~`members`~~	`TSEnumMember`[]	The enum members. Deprecated Use body instead.	-
`type`	`TSEnumDeclaration`	-	`BaseNode`.`type`

TSEnumMemberComputedName

this should only really happen in semantically invalid code (errors 1164 and 2452)

Example

// VALID:
enum Foo { ['a'] }

// INVALID:
const x = 'a';
enum Foo { [x] }
enum Bar { ['a' + 'b'] }

Extends

TSEnumMemberBase

Properties

Property	Type	Overrides
`computed`	`true`	`TSEnumMemberBase.computed`
`id`	`Expression`	`TSEnumMemberBase.id`

TSEnumMemberNonComputedName

Extends

TSEnumMemberBase

Properties

Property	Type	Overrides
`computed`	`false`	`TSEnumMemberBase.computed`
`id`	`PropertyNameNonComputed`	`TSEnumMemberBase.id`

TSExportAssignment

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression`	-
`type`	`TSExportAssignment`	`BaseNode`.`type`

TSExportKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSExportKeyword`	`BaseNode`.`type`

TSExternalModuleReference

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`StringLiteral`	-
`type`	`TSExternalModuleReference`	`BaseNode`.`type`

TSFunctionType

Extends

TSFunctionSignatureBase

Properties

Property	Type	Overrides
`type`	`TSFunctionType`	`TSFunctionSignatureBase.type`

TSImportEqualsNamespaceDeclaration

Extends

TSImportEqualsDeclarationBase

Properties

Property	Type	Description	Overrides
`importKind`	`"value"`	The kind of the import.	`TSImportEqualsDeclarationBase.importKind`
`moduleReference`	`TSQualifiedName` \| `Identifier`	The value being aliased. `import F1 = A;import F2 = A.B.C;`	`TSImportEqualsDeclarationBase.moduleReference`

TSImportEqualsRequireDeclaration

Extends

TSImportEqualsDeclarationBase

Properties

Property	Type	Description	Overrides
`importKind`	`ExportAndImportKind`	The kind of the import.	`TSImportEqualsDeclarationBase.importKind`
`moduleReference`	`TSExternalModuleReference`	The value being aliased. `import F3 = require('mod');`	`TSImportEqualsDeclarationBase.moduleReference`

TSImportType

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`TypeNode`	-
`qualifier`	`null` \| `EntityName`	-
`type`	`TSImportType`	`BaseNode`.`type`
`typeArguments`	`null` \| `TSTypeParameterInstantiation`	-

TSIndexSignature

Extends

BaseNode

Properties

Property	Type	Overrides
`accessibility`	`undefined` \| `Accessibility`	-
`parameters`	`Parameter`[]	-
`readonly`	`boolean`	-
`static`	`boolean`	-
`type`	`TSIndexSignature`	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TSTypeAnnotation`	-

TSIndexedAccessType

Extends

BaseNode

Properties

Property	Type	Overrides
`indexType`	`TypeNode`	-
`objectType`	`TypeNode`	-
`type`	`TSIndexedAccessType`	`BaseNode`.`type`

TSInferType

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSInferType`	`BaseNode`.`type`
`typeParameter`	`TSTypeParameter`	-

TSInstantiationExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression`	-
`type`	`TSInstantiationExpression`	`BaseNode`.`type`
`typeArguments`	`TSTypeParameterInstantiation`	-

TSInterfaceBody

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`TypeElement`[]	-
`type`	`TSInterfaceBody`	`BaseNode`.`type`

TSInterfaceDeclaration

Extends

BaseNode

Properties

Property	Type	Description	Overrides
`body`	`TSInterfaceBody`	The body of the interface	-
`declare`	`boolean`	Whether the interface was `declare`d	-
`extends`	`TSInterfaceHeritage`[]	The types this interface `extends`	-
`id`	`Identifier`	The name of this interface	-
`type`	`TSInterfaceDeclaration`	-	`BaseNode`.`type`
`typeParameters`	`undefined` \| `TSTypeParameterDeclaration`	The generic type parameters declared for the interface. Empty declaration (`<>`) is different from no declaration.	-

TSInterfaceHeritage

Extends

TSHeritageBase

Properties

Property	Type	Overrides
`type`	`TSInterfaceHeritage`	`TSHeritageBase.type`

TSIntersectionType

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSIntersectionType`	`BaseNode`.`type`
`types`	`TypeNode`[]	-

TSIntrinsicKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSIntrinsicKeyword`	`BaseNode`.`type`

TSLiteralType

Extends

BaseNode

Properties

Property	Type	Overrides
`literal`	`LiteralExpression` \| `UnaryExpression` \| `UpdateExpression`	-
`type`	`TSLiteralType`	`BaseNode`.`type`

TSMappedType

Extends

BaseNode

Properties

Property	Type	Description	Overrides
`constraint`	`TypeNode`	-	-
`key`	`Identifier`	-	-
`nameType`	`null` \| `TypeNode`	-	-
`optional`	`undefined` \| `boolean` \| `"+"` \| `"-"`	-	-
`readonly`	`undefined` \| `boolean` \| `"+"` \| `"-"`	-	-
`type`	`TSMappedType`	-	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TypeNode`	-	-
~~`typeParameter`~~	`TSTypeParameter`	Deprecated Use `constraint` and `key` instead.	-

TSMethodSignatureComputedName

Extends

TSMethodSignatureBase

Properties

Property	Type	Overrides
`computed`	`true`	`TSMethodSignatureBase.computed`
`key`	`Expression`	`TSMethodSignatureBase.key`

TSMethodSignatureNonComputedName

Extends

TSMethodSignatureBase

Properties

Property	Type	Overrides
`computed`	`false`	`TSMethodSignatureBase.computed`
`key`	`PropertyNameNonComputed`	`TSMethodSignatureBase.key`

TSModuleBlock

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`ProgramStatement`[]	-
`type`	`TSModuleBlock`	`BaseNode`.`type`

TSModuleDeclarationGlobal

Extends

TSModuleDeclarationBase

Properties

Property	Type	Description	Overrides
`body`	`TSModuleBlock`	-	`TSModuleDeclarationBase.body`
`id`	`Identifier`	This will always be an Identifier with name `global`	`TSModuleDeclarationBase.id`
`kind`	`"global"`	-	`TSModuleDeclarationBase.kind`

TSModuleDeclarationModuleWithIdentifierId

The legacy module declaration, replaced with namespace declarations.

module A {}

Extends

TSModuleDeclarationModuleBase

Properties

Property	Type	Overrides
`body`	`TSModuleBlock`	`TSModuleDeclarationModuleBase.body`
`id`	`Identifier`	`TSModuleDeclarationModuleBase.id`
`kind`	`"module"`	`TSModuleDeclarationModuleBase.kind`

TSModuleDeclarationModuleWithStringIdDeclared

A string module declaration that is declared:

declare module 'foo' {}
declare module 'foo';

Extends

TSModuleDeclarationModuleBase

Properties

Property	Type	Overrides
`body?`	`TSModuleBlock`	`TSModuleDeclarationModuleBase.body`
`declare`	`true`	`TSModuleDeclarationModuleBase.declare`
`id`	`StringLiteral`	`TSModuleDeclarationModuleBase.id`
`kind`	`"module"`	`TSModuleDeclarationModuleBase.kind`

TSModuleDeclarationModuleWithStringIdNotDeclared

A string module declaration that is not declared:

module 'foo' {}

Extends

TSModuleDeclarationModuleBase

Properties

Property	Type	Overrides
`body`	`TSModuleBlock`	`TSModuleDeclarationModuleBase.body`
`declare`	`false`	`TSModuleDeclarationModuleBase.declare`
`id`	`StringLiteral`	`TSModuleDeclarationModuleBase.id`
`kind`	`"module"`	`TSModuleDeclarationModuleBase.kind`

TSModuleDeclarationNamespace

Extends

TSModuleDeclarationBase

Properties

Property	Type	Overrides
`body`	`TSModuleBlock`	`TSModuleDeclarationBase.body`
`id`	`TSQualifiedName` \| `Identifier`	`TSModuleDeclarationBase.id`
`kind`	`"namespace"`	`TSModuleDeclarationBase.kind`

TSNamedTupleMember

Extends

BaseNode

Properties

Property	Type	Overrides
`elementType`	`TypeNode`	-
`label`	`Identifier`	-
`optional`	`boolean`	-
`type`	`TSNamedTupleMember`	`BaseNode`.`type`

TSNamespaceExportDeclaration

For the following declaration:

export as namespace X;

Extends

BaseNode

Properties

Property	Type	Description	Overrides
`id`	`Identifier`	The name of the global variable that's exported as namespace	-
`type`	`TSNamespaceExportDeclaration`	-	`BaseNode`.`type`

TSNeverKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSNeverKeyword`	`BaseNode`.`type`

TSNonNullExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression`	-
`type`	`TSNonNullExpression`	`BaseNode`.`type`

TSNullKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSNullKeyword`	`BaseNode`.`type`

TSNumberKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSNumberKeyword`	`BaseNode`.`type`

TSObjectKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSObjectKeyword`	`BaseNode`.`type`

TSOptionalType

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSOptionalType`	`BaseNode`.`type`
`typeAnnotation`	`TypeNode`	-

TSParameterProperty

Extends

BaseNode

Properties

Property	Type	Overrides
`accessibility`	`undefined` \| `Accessibility`	-
`decorators`	`Decorator`[]	-
`override`	`boolean`	-
`parameter`	`AssignmentPattern` \| `RestElement` \| `BindingName`	-
`readonly`	`boolean`	-
`static`	`boolean`	-
`type`	`TSParameterProperty`	`BaseNode`.`type`

TSPrivateKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSPrivateKeyword`	`BaseNode`.`type`

TSPropertySignatureComputedName

Extends

TSPropertySignatureBase

Properties

Property	Type	Overrides
`computed`	`true`	`TSPropertySignatureBase.computed`
`key`	`Expression`	`TSPropertySignatureBase.key`

TSPropertySignatureNonComputedName

Extends

TSPropertySignatureBase

Properties

Property	Type	Overrides
`computed`	`false`	`TSPropertySignatureBase.computed`
`key`	`PropertyNameNonComputed`	`TSPropertySignatureBase.key`

TSProtectedKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSProtectedKeyword`	`BaseNode`.`type`

TSPublicKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSPublicKeyword`	`BaseNode`.`type`

TSQualifiedName

Extends

BaseNode

Properties

Property	Type	Overrides
`left`	`EntityName`	-
`right`	`Identifier`	-
`type`	`TSQualifiedName`	`BaseNode`.`type`

TSReadonlyKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSReadonlyKeyword`	`BaseNode`.`type`

TSRestType

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSRestType`	`BaseNode`.`type`
`typeAnnotation`	`TypeNode`	-

TSSatisfiesExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression`	-
`type`	`TSSatisfiesExpression`	`BaseNode`.`type`
`typeAnnotation`	`TypeNode`	-

TSStaticKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSStaticKeyword`	`BaseNode`.`type`

TSStringKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSStringKeyword`	`BaseNode`.`type`

TSSymbolKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSSymbolKeyword`	`BaseNode`.`type`

TSTemplateLiteralType

Extends

BaseNode

Properties

Property	Type	Overrides
`quasis`	`TemplateElement`[]	-
`type`	`TSTemplateLiteralType`	`BaseNode`.`type`
`types`	`TypeNode`[]	-

TSThisType

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSThisType`	`BaseNode`.`type`

TSTupleType

Extends

BaseNode

Properties

Property	Type	Overrides
`elementTypes`	`TypeNode`[]	-
`type`	`TSTupleType`	`BaseNode`.`type`

TSTypeAliasDeclaration

Extends

BaseNode

Properties

Property	Type	Description	Overrides
`declare`	`boolean`	Whether the type was `declare`d. Example `declare type T = 1;`	-
`id`	`Identifier`	The name of the type.	-
`type`	`TSTypeAliasDeclaration`	-	`BaseNode`.`type`
`typeAnnotation`	`TypeNode`	The "value" (type) of the declaration	-
`typeParameters`	`undefined` \| `TSTypeParameterDeclaration`	The generic type parameters declared for the type. Empty declaration (`<>`) is different from no declaration.	-

TSTypeAnnotation

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSTypeAnnotation`	`BaseNode`.`type`
`typeAnnotation`	`TypeNode`	-

TSTypeAssertion

Extends

BaseNode

Properties

Property	Type	Overrides
`expression`	`Expression`	-
`type`	`TSTypeAssertion`	`BaseNode`.`type`
`typeAnnotation`	`TypeNode`	-

TSTypeLiteral

Extends

BaseNode

Properties

Property	Type	Overrides
`members`	`TypeElement`[]	-
`type`	`TSTypeLiteral`	`BaseNode`.`type`

TSTypeOperator

Extends

BaseNode

Properties

Property	Type	Overrides
`operator`	`"keyof"` \| `"readonly"` \| `"unique"`	-
`type`	`TSTypeOperator`	`BaseNode`.`type`
`typeAnnotation`	`undefined` \| `TypeNode`	-

TSTypeParameter

Extends

BaseNode

Properties

Property	Type	Overrides
`const`	`boolean`	-
`constraint`	`undefined` \| `TypeNode`	-
`default`	`undefined` \| `TypeNode`	-
`in`	`boolean`	-
`name`	`Identifier`	-
`out`	`boolean`	-
`type`	`TSTypeParameter`	`BaseNode`.`type`

TSTypeParameterDeclaration

Extends

BaseNode

Properties

Property	Type	Overrides
`params`	`TSTypeParameter`[]	-
`type`	`TSTypeParameterDeclaration`	`BaseNode`.`type`

TSTypeParameterInstantiation

Extends

BaseNode

Properties

Property	Type	Overrides
`params`	`TypeNode`[]	-
`type`	`TSTypeParameterInstantiation`	`BaseNode`.`type`

TSTypePredicate

Extends

BaseNode

Properties

Property	Type	Overrides
`asserts`	`boolean`	-
`parameterName`	`TSThisType` \| `Identifier`	-
`type`	`TSTypePredicate`	`BaseNode`.`type`
`typeAnnotation`	`null` \| `TSTypeAnnotation`	-

TSTypeQuery

Extends

BaseNode

Properties

Property	Type	Overrides
`exprName`	`TSImportType` \| `EntityName`	-
`type`	`TSTypeQuery`	`BaseNode`.`type`
`typeArguments`	`undefined` \| `TSTypeParameterInstantiation`	-

TSTypeReference

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSTypeReference`	`BaseNode`.`type`
`typeArguments`	`undefined` \| `TSTypeParameterInstantiation`	-
`typeName`	`EntityName`	-

TSUndefinedKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSUndefinedKeyword`	`BaseNode`.`type`

TSUnionType

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSUnionType`	`BaseNode`.`type`
`types`	`TypeNode`[]	-

TSUnknownKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSUnknownKeyword`	`BaseNode`.`type`

TSVoidKeyword

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`TSVoidKeyword`	`BaseNode`.`type`

TaggedTemplateExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`quasi`	`TemplateLiteral`	-
`tag`	`Expression`	-
`type`	`TaggedTemplateExpression`	`BaseNode`.`type`
`typeArguments`	`undefined` \| `TSTypeParameterInstantiation`	-

TemplateElement

Extends

BaseNode

Properties

Property	Type	Overrides
`tail`	`boolean`	-
`type`	`TemplateElement`	`BaseNode`.`type`
`value`	`object`	-
`value.cooked`	`string`	-
`value.raw`	`string`	-

TemplateLiteral

Extends

BaseNode

Properties

Property	Type	Overrides
`expressions`	`Expression`[]	-
`quasis`	`TemplateElement`[]	-
`type`	`TemplateLiteral`	`BaseNode`.`type`

TemplateToken

Extends

BaseToken

Properties

Property	Type	Overrides
`type`	`Template`	`BaseToken.type`

ThisExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`type`	`ThisExpression`	`BaseNode`.`type`

ThrowStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`Expression`	-
`type`	`ThrowStatement`	`BaseNode`.`type`

TryStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`block`	`BlockStatement`	-
`finalizer`	`null` \| `BlockStatement`	-
`handler`	`null` \| `CatchClause`	-
`type`	`TryStatement`	`BaseNode`.`type`

UnaryExpression

Extends

UnaryExpressionBase

Properties

Property	Type	Overrides
`operator`	\| `"!"` \| `"+"` \| `"~"` \| `"-"` \| `"delete"` \| `"typeof"` \| `"void"`	`UnaryExpressionBase.operator`
`type`	`UnaryExpression`	`UnaryExpressionBase.type`

UpdateExpression

Extends

UnaryExpressionBase

Properties

Property	Type	Overrides
`operator`	`"++"` \| `"--"`	`UnaryExpressionBase.operator`
`type`	`UpdateExpression`	`UnaryExpressionBase.type`

UsingInForOfDeclaration

Extends

UsingDeclarationBase

Properties

Property Type Description

declarations

[UsingInForOfDeclarator]

The variables declared by this declaration. Always has exactly one element.

Example

for (using x of y)

UsingInForOfDeclarator

Extends

VariableDeclaratorBase

Properties

Property	Type	Overrides
`definite`	`false`	`VariableDeclaratorBase.definite`
`id`	`Identifier`	`VariableDeclaratorBase.id`
`init`	`null`	`VariableDeclaratorBase.init`

UsingInNormalContextDeclaration

Extends

UsingDeclarationBase

Properties

Property Type Description

declarations

UsingInNormalContextDeclarator[]

The variables declared by this declaration. Always non-empty.

Example

using x = 1;using y = 1, z = 2;

UsingInNormalContextDeclarator

Extends

VariableDeclaratorBase

Properties

Property	Type	Overrides
`definite`	`false`	`VariableDeclaratorBase.definite`
`id`	`Identifier`	`VariableDeclaratorBase.id`
`init`	`Expression`	`VariableDeclaratorBase.init`

VariableDeclaratorDefiniteAssignment

Extends

VariableDeclaratorBase

Properties

Property	Type	Description	Overrides
`definite`	`true`	-	`VariableDeclaratorBase.definite`
`id`	`Identifier`	The name of the variable. Must have a type annotation.	`VariableDeclaratorBase.id`
`init`	`null`	-	`VariableDeclaratorBase.init`

VariableDeclaratorMaybeInit

Extends

VariableDeclaratorBase

Properties

Property	Type	Overrides
`definite`	`false`	`VariableDeclaratorBase.definite`

VariableDeclaratorNoInit

Extends

VariableDeclaratorBase

Properties

Property	Type	Overrides
`definite`	`false`	`VariableDeclaratorBase.definite`
`init`	`null`	`VariableDeclaratorBase.init`

WhileStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`	-
`test`	`Expression`	-
`type`	`WhileStatement`	`BaseNode`.`type`

WithStatement

Extends

BaseNode

Properties

Property	Type	Overrides
`body`	`Statement`	-
`object`	`Expression`	-
`type`	`WithStatement`	`BaseNode`.`type`

YieldExpression

Extends

BaseNode

Properties

Property	Type	Overrides
`argument`	`undefined` \| `Expression`	-
`delegate`	`boolean`	-
`type`	`YieldExpression`	`BaseNode`.`type`

Type Aliases

Accessibility

type Accessibility: "private" | "protected" | "public";

Source

base/Accessibility.ts:1

AccessorProperty

type AccessorProperty: AccessorPropertyComputedName | AccessorPropertyNonComputedName;

Source

element/AccessorProperty/spec.ts:17

BindingName

type BindingName: BindingPattern | Identifier;

Source

unions/BindingName.ts:4

BindingPattern

type BindingPattern: ArrayPattern | ObjectPattern;

Source

unions/BindingPattern.ts:4

CallExpressionArgument

type CallExpressionArgument: Expression | SpreadElement;

Source

unions/CallExpressionArgument.ts:4

ChainElement

type ChainElement: CallExpression | MemberExpression | TSNonNullExpression;

Source

unions/ChainElement.ts:5

ClassDeclaration

type ClassDeclaration: ClassDeclarationWithName | ClassDeclarationWithOptionalName;

Source

declaration/ClassDeclaration/spec.ts:29

ClassElement

type ClassElement: 
  | AccessorProperty
  | MethodDefinition
  | PropertyDefinition
  | StaticBlock
  | TSAbstractAccessorProperty
  | TSAbstractMethodDefinition
  | TSAbstractPropertyDefinition
  | TSIndexSignature;

Source

unions/ClassElement.ts:10

ClassPropertyNameNonComputed

type ClassPropertyNameNonComputed: PrivateIdentifier | PropertyNameNonComputed;

Source

unions/PropertyName.ts:16

Comment

type Comment: BlockComment | LineComment;

Source

unions/Comment.ts:4

DeclarationStatement

type DeclarationStatement: 
  | ClassDeclaration
  | ClassExpression
  | ExportAllDeclaration
  | ExportDefaultDeclaration
  | ExportNamedDeclaration
  | FunctionDeclaration
  | TSDeclareFunction
  | TSEnumDeclaration
  | TSImportEqualsDeclaration
  | TSInterfaceDeclaration
  | TSModuleDeclaration
  | TSNamespaceExportDeclaration
  | TSTypeAliasDeclaration;

Deprecated

Note that this is neither up to date nor fully correct.

Source

unions/DeclarationStatement.ts:20

DefaultExportDeclarations

type DefaultExportDeclarations: 
  | ClassDeclarationWithOptionalName
  | Expression
  | FunctionDeclarationWithName
  | FunctionDeclarationWithOptionalName
  | TSDeclareFunction
  | TSEnumDeclaration
  | TSInterfaceDeclaration
  | TSModuleDeclaration
  | TSTypeAliasDeclaration
  | VariableDeclaration;

Source

unions/ExportDeclaration.ts:20

DestructuringPattern

type DestructuringPattern: 
  | ArrayPattern
  | AssignmentPattern
  | Identifier
  | MemberExpression
  | ObjectPattern
  | RestElement;

Source

unions/DestructuringPattern.ts:8

EntityName

type EntityName: Identifier | ThisExpression | TSQualifiedName;

Source

unions/EntityName.ts:5

ExportDeclaration

type ExportDeclaration: DefaultExportDeclarations | NamedExportDeclarations;

Source

unions/ExportDeclaration.ts:48

ExportNamedDeclaration

type ExportNamedDeclaration: ExportNamedDeclarationWithoutSourceWithMultiple | ExportNamedDeclarationWithoutSourceWithSingle | ExportNamedDeclarationWithSource;

Source

declaration/ExportNamedDeclaration/spec.ts:117

Expression

type Expression: 
  | ArrayExpression
  | ArrayPattern
  | ArrowFunctionExpression
  | AssignmentExpression
  | AwaitExpression
  | BinaryExpression
  | CallExpression
  | ChainExpression
  | ClassExpression
  | ConditionalExpression
  | FunctionExpression
  | Identifier
  | ImportExpression
  | JSXElement
  | JSXFragment
  | LiteralExpression
  | LogicalExpression
  | MemberExpression
  | MetaProperty
  | NewExpression
  | ObjectExpression
  | ObjectPattern
  | SequenceExpression
  | Super
  | TaggedTemplateExpression
  | TemplateLiteral
  | ThisExpression
  | TSAsExpression
  | TSInstantiationExpression
  | TSNonNullExpression
  | TSSatisfiesExpression
  | TSTypeAssertion
  | UnaryExpression
  | UpdateExpression
  | YieldExpression;

Source

unions/Expression.ts:45

ForInitialiser

type ForInitialiser: Expression | LetOrConstOrVarDeclaration;

Source

unions/ForInitialiser.ts:4

FunctionDeclaration

type FunctionDeclaration: FunctionDeclarationWithName | FunctionDeclarationWithOptionalName;

Source

declaration/FunctionDeclaration/spec.ts:34

FunctionLike

type FunctionLike: 
  | ArrowFunctionExpression
  | FunctionDeclaration
  | FunctionExpression
  | TSDeclareFunction
  | TSEmptyBodyFunctionExpression;

Source

unions/FunctionLike.ts:7

ImportClause

type ImportClause: ImportDefaultSpecifier | ImportNamespaceSpecifier | ImportSpecifier;

Source

unions/ImportClause.ts:5

IterationStatement

type IterationStatement: 
  | DoWhileStatement
  | ForInStatement
  | ForOfStatement
  | ForStatement
  | WhileStatement;

Source

unions/IterationStatement.ts:7

JSXChild

type JSXChild: JSXElement | JSXExpression | JSXFragment | JSXText;

Source

unions/JSXChild.ts:6

JSXExpression

type JSXExpression: JSXExpressionContainer | JSXSpreadChild;

Source

unions/JSXExpression.ts:4

JSXTagNameExpression

type JSXTagNameExpression: JSXIdentifier | JSXMemberExpression | JSXNamespacedName;

Source

unions/JSXTagNameExpression.ts:5

LeftHandSideExpression

type LeftHandSideExpression: 
  | ArrayExpression
  | ArrayPattern
  | ArrowFunctionExpression
  | CallExpression
  | ClassExpression
  | FunctionExpression
  | Identifier
  | JSXElement
  | JSXFragment
  | LiteralExpression
  | MemberExpression
  | MetaProperty
  | ObjectExpression
  | ObjectPattern
  | SequenceExpression
  | Super
  | TaggedTemplateExpression
  | ThisExpression
  | TSAsExpression
  | TSNonNullExpression
  | TSTypeAssertion;

Source

unions/LeftHandSideExpression.ts:23

LetOrConstOrVarDeclaration

type LetOrConstOrVarDeclaration: ConstDeclaration | LetOrVarDeclaredDeclaration | LetOrVarNonDeclaredDeclaration;

Source

declaration/VariableDeclaration/spec.ts:88

LetOrConstOrVarDeclarator

type LetOrConstOrVarDeclarator: VariableDeclaratorDefiniteAssignment | VariableDeclaratorMaybeInit | VariableDeclaratorNoInit;

Source

special/VariableDeclarator/spec.ts:47

Literal

type Literal: 
  | BigIntLiteral
  | BooleanLiteral
  | NullLiteral
  | NumberLiteral
  | RegExpLiteral
  | StringLiteral;

Source

unions/Literal.ts:8

LiteralExpression

type LiteralExpression: Literal | TemplateLiteral;

Source

unions/LiteralExpression.ts:4

MemberExpression

type MemberExpression: MemberExpressionComputedName | MemberExpressionNonComputedName;

Source

expression/MemberExpression/spec.ts:26

MethodDefinition

type MethodDefinition: MethodDefinitionComputedName | MethodDefinitionNonComputedName;

Source

element/MethodDefinition/spec.ts:17

NamedExportDeclarations

type NamedExportDeclarations: 
  | ClassDeclarationWithName
  | ClassDeclarationWithOptionalName
  | FunctionDeclarationWithName
  | FunctionDeclarationWithOptionalName
  | TSDeclareFunction
  | TSEnumDeclaration
  | TSImportEqualsDeclaration
  | TSInterfaceDeclaration
  | TSModuleDeclaration
  | TSTypeAliasDeclaration
  | VariableDeclaration;

Source

unions/ExportDeclaration.ts:34

Node

type Node: 
  | AccessorProperty
  | ArrayExpression
  | ArrayPattern
  | ArrowFunctionExpression
  | AssignmentExpression
  | AssignmentPattern
  | AwaitExpression
  | BinaryExpression
  | BlockStatement
  | BreakStatement
  | CallExpression
  | CatchClause
  | ChainExpression
  | ClassBody
  | ClassDeclaration
  | ClassExpression
  | ConditionalExpression
  | ContinueStatement
  | DebuggerStatement
  | Decorator
  | DoWhileStatement
  | EmptyStatement
  | ExportAllDeclaration
  | ExportDefaultDeclaration
  | ExportNamedDeclaration
  | ExportSpecifier
  | ExpressionStatement
  | ForInStatement
  | ForOfStatement
  | ForStatement
  | FunctionDeclaration
  | FunctionExpression
  | Identifier
  | IfStatement
  | ImportAttribute
  | ImportDeclaration
  | ImportDefaultSpecifier
  | ImportExpression
  | ImportNamespaceSpecifier
  | ImportSpecifier
  | JSXAttribute
  | JSXClosingElement
  | JSXClosingFragment
  | JSXElement
  | JSXEmptyExpression
  | JSXExpressionContainer
  | JSXFragment
  | JSXIdentifier
  | JSXMemberExpression
  | JSXNamespacedName
  | JSXOpeningElement
  | JSXOpeningFragment
  | JSXSpreadAttribute
  | JSXSpreadChild
  | JSXText
  | LabeledStatement
  | Literal
  | LogicalExpression
  | MemberExpression
  | MetaProperty
  | MethodDefinition
  | NewExpression
  | ObjectExpression
  | ObjectPattern
  | PrivateIdentifier
  | Program
  | Property
  | PropertyDefinition
  | RestElement
  | ReturnStatement
  | SequenceExpression
  | SpreadElement
  | StaticBlock
  | Super
  | SwitchCase
  | SwitchStatement
  | TaggedTemplateExpression
  | TemplateElement
  | TemplateLiteral
  | ThisExpression
  | ThrowStatement
  | TryStatement
  | TSAbstractAccessorProperty
  | TSAbstractKeyword
  | TSAbstractMethodDefinition
  | TSAbstractPropertyDefinition
  | TSAnyKeyword
  | TSArrayType
  | TSAsExpression
  | TSAsyncKeyword
  | TSBigIntKeyword
  | TSBooleanKeyword
  | TSCallSignatureDeclaration
  | TSClassImplements
  | TSConditionalType
  | TSConstructorType
  | TSConstructSignatureDeclaration
  | TSDeclareFunction
  | TSDeclareKeyword
  | TSEmptyBodyFunctionExpression
  | TSEnumBody
  | TSEnumDeclaration
  | TSEnumMember
  | TSExportAssignment
  | TSExportKeyword
  | TSExternalModuleReference
  | TSFunctionType
  | TSImportEqualsDeclaration
  | TSImportType
  | TSIndexedAccessType
  | TSIndexSignature
  | TSInferType
  | TSInstantiationExpression
  | TSInterfaceBody
  | TSInterfaceDeclaration
  | TSInterfaceHeritage
  | TSIntersectionType
  | TSIntrinsicKeyword
  | TSLiteralType
  | TSMappedType
  | TSMethodSignature
  | TSModuleBlock
  | TSModuleDeclaration
  | TSNamedTupleMember
  | TSNamespaceExportDeclaration
  | TSNeverKeyword
  | TSNonNullExpression
  | TSNullKeyword
  | TSNumberKeyword
  | TSObjectKeyword
  | TSOptionalType
  | TSParameterProperty
  | TSPrivateKeyword
  | TSPropertySignature
  | TSProtectedKeyword
  | TSPublicKeyword
  | TSQualifiedName
  | TSReadonlyKeyword
  | TSRestType
  | TSSatisfiesExpression
  | TSStaticKeyword
  | TSStringKeyword
  | TSSymbolKeyword
  | TSTemplateLiteralType
  | TSThisType
  | TSTupleType
  | TSTypeAliasDeclaration
  | TSTypeAnnotation
  | TSTypeAssertion
  | TSTypeLiteral
  | TSTypeOperator
  | TSTypeParameter
  | TSTypeParameterDeclaration
  | TSTypeParameterInstantiation
  | TSTypePredicate
  | TSTypeQuery
  | TSTypeReference
  | TSUndefinedKeyword
  | TSUnionType
  | TSUnknownKeyword
  | TSVoidKeyword
  | UnaryExpression
  | UpdateExpression
  | VariableDeclaration
  | VariableDeclarator
  | WhileStatement
  | WithStatement
  | YieldExpression;

Source

unions/Node.ts:175

ObjectLiteralElement

type ObjectLiteralElement: Property | SpreadElement;

Source

unions/ObjectLiteralElement.ts:4

ObjectLiteralElementLike

type ObjectLiteralElementLike: ObjectLiteralElement;

Source

unions/ObjectLiteralElement.ts:7

OptionalRangeAndLoc<T>

type OptionalRangeAndLoc<T>: object & Pick<T, Exclude<keyof T, "loc" | "range">>;

Type declaration

Member	Type
`loc`	`SourceLocation`
`range`	`Range`

Type parameters

Type parameter
`T`

Source

base/OptionalRangeAndLoc.ts:5

Parameter

type Parameter: 
  | ArrayPattern
  | AssignmentPattern
  | Identifier
  | ObjectPattern
  | RestElement
  | TSParameterProperty;

Source

unions/Parameter.ts:8

PrimaryExpression

type PrimaryExpression: 
  | ArrayExpression
  | ArrayPattern
  | ClassExpression
  | FunctionExpression
  | Identifier
  | JSXElement
  | JSXFragment
  | JSXOpeningElement
  | LiteralExpression
  | MetaProperty
  | ObjectExpression
  | ObjectPattern
  | Super
  | TemplateLiteral
  | ThisExpression
  | TSNullKeyword;

Source

unions/PrimaryExpression.ts:19

ProgramStatement

type ProgramStatement: 
  | ExportAllDeclaration
  | ExportDefaultDeclaration
  | ExportNamedDeclaration
  | ImportDeclaration
  | Statement
  | TSImportEqualsDeclaration
  | TSNamespaceExportDeclaration;

Source

unions/Statement.ts:71

Property

type Property: PropertyComputedName | PropertyNonComputedName;

Source

element/Property/spec.ts:37

PropertyDefinition

type PropertyDefinition: PropertyDefinitionComputedName | PropertyDefinitionNonComputedName;

Source

element/PropertyDefinition/spec.ts:17

PropertyName

type PropertyName: ClassPropertyNameNonComputed | PropertyNameComputed | PropertyNameNonComputed;

Source

unions/PropertyName.ts:7

PropertyNameComputed

type PropertyNameComputed: Expression;

Source

unions/PropertyName.ts:11

PropertyNameNonComputed

type PropertyNameNonComputed: Identifier | NumberLiteral | StringLiteral;

Source

unions/PropertyName.ts:12

Range

type Range: [number, number];

An array of two numbers. Both numbers are a 0-based index which is the position in the array of source code characters. The first is the start position of the node, the second is the end position of the node.

Source

base/Range.ts:6

Statement

type Statement: 
  | BlockStatement
  | BreakStatement
  | ClassDeclarationWithName
  | ContinueStatement
  | DebuggerStatement
  | DoWhileStatement
  | EmptyStatement
  | ExportAllDeclaration
  | ExportDefaultDeclaration
  | ExportNamedDeclaration
  | ExpressionStatement
  | ForInStatement
  | ForOfStatement
  | ForStatement
  | FunctionDeclarationWithName
  | IfStatement
  | ImportDeclaration
  | LabeledStatement
  | ReturnStatement
  | SwitchStatement
  | ThrowStatement
  | TryStatement
  | TSDeclareFunction
  | TSEnumDeclaration
  | TSExportAssignment
  | TSImportEqualsDeclaration
  | TSInterfaceDeclaration
  | TSModuleDeclaration
  | TSNamespaceExportDeclaration
  | TSTypeAliasDeclaration
  | VariableDeclaration
  | WhileStatement
  | WithStatement;

Source

unions/Statement.ts:35

TSAbstractAccessorProperty

type TSAbstractAccessorProperty: TSAbstractAccessorPropertyComputedName | TSAbstractAccessorPropertyNonComputedName;

Source

element/TSAbstractAccessorProperty/spec.ts:20

TSAbstractMethodDefinition

type TSAbstractMethodDefinition: TSAbstractMethodDefinitionComputedName | TSAbstractMethodDefinitionNonComputedName;

Source

element/TSAbstractMethodDefinition/spec.ts:18

TSAbstractPropertyDefinition

type TSAbstractPropertyDefinition: TSAbstractPropertyDefinitionComputedName | TSAbstractPropertyDefinitionNonComputedName;

Source

element/TSAbstractPropertyDefinition/spec.ts:20

TSDeclareFunction

type TSDeclareFunction: TSDeclareFunctionNoDeclare | TSDeclareFunctionWithDeclare;

Source

declaration/TSDeclareFunction/spec.ts:53

TSEnumMember

type TSEnumMember: TSEnumMemberComputedName | TSEnumMemberNonComputedName;

Source

element/TSEnumMember/spec.ts:42

TSImportEqualsDeclaration

type TSImportEqualsDeclaration: TSImportEqualsNamespaceDeclaration | TSImportEqualsRequireDeclaration;

Source

declaration/TSImportEqualsDeclaration/spec.ts:62

TSMethodSignature

type TSMethodSignature: TSMethodSignatureComputedName | TSMethodSignatureNonComputedName;

Source

element/TSMethodSignature/spec.ts:37

TSModuleDeclaration

type TSModuleDeclaration: TSModuleDeclarationGlobal | TSModuleDeclarationModule | TSModuleDeclarationNamespace;

Source

declaration/TSModuleDeclaration/spec.ts:132

TSModuleDeclarationKind

type TSModuleDeclarationKind: "global" | "module" | "namespace";

Source

declaration/TSModuleDeclaration/spec.ts:9

TSModuleDeclarationModule

type TSModuleDeclarationModule: TSModuleDeclarationModuleWithIdentifierId | TSModuleDeclarationModuleWithStringId;

Source

declaration/TSModuleDeclaration/spec.ts:129

TSModuleDeclarationModuleWithStringId

type TSModuleDeclarationModuleWithStringId: TSModuleDeclarationModuleWithStringIdDeclared | TSModuleDeclarationModuleWithStringIdNotDeclared;

Source

declaration/TSModuleDeclaration/spec.ts:126

TSPropertySignature

type TSPropertySignature: TSPropertySignatureComputedName | TSPropertySignatureNonComputedName;

Source

element/TSPropertySignature/spec.ts:34

TSUnaryExpression

type TSUnaryExpression: AwaitExpression | LeftHandSideExpression | UnaryExpression | UpdateExpression;

Source

unions/TSUnaryExpression.ts:7

Token

type Token: 
  | BooleanToken
  | Comment
  | IdentifierToken
  | JSXIdentifierToken
  | JSXTextToken
  | KeywordToken
  | NullToken
  | NumericToken
  | PunctuatorToken
  | RegularExpressionToken
  | StringToken
  | TemplateToken;

Source

unions/Token.ts:14

TypeElement

type TypeElement: 
  | TSCallSignatureDeclaration
  | TSConstructSignatureDeclaration
  | TSIndexSignature
  | TSMethodSignature
  | TSPropertySignature;

Source

unions/TypeElement.ts:7

TypeNode

type TypeNode: 
  | TSAbstractKeyword
  | TSAnyKeyword
  | TSArrayType
  | TSAsyncKeyword
  | TSBigIntKeyword
  | TSBooleanKeyword
  | TSConditionalType
  | TSConstructorType
  | TSDeclareKeyword
  | TSExportKeyword
  | TSFunctionType
  | TSImportType
  | TSIndexedAccessType
  | TSInferType
  | TSIntersectionType
  | TSIntrinsicKeyword
  | TSLiteralType
  | TSMappedType
  | TSNamedTupleMember
  | TSNeverKeyword
  | TSNullKeyword
  | TSNumberKeyword
  | TSObjectKeyword
  | TSOptionalType
  | TSPrivateKeyword
  | TSProtectedKeyword
  | TSPublicKeyword
  | TSQualifiedName
  | TSReadonlyKeyword
  | TSRestType
  | TSStaticKeyword
  | TSStringKeyword
  | TSSymbolKeyword
  | TSTemplateLiteralType
  | TSThisType
  | TSTupleType
  | TSTypeLiteral
  | TSTypeOperator
  | TSTypePredicate
  | TSTypeQuery
  | TSTypeReference
  | TSUndefinedKeyword
  | TSUnionType
  | TSUnknownKeyword
  | TSVoidKeyword;

Source

unions/TypeNode.ts:47

UsingDeclaration

type UsingDeclaration: UsingInForOfDeclaration | UsingInNormalContextDeclaration;

Source

declaration/VariableDeclaration/spec.ts:136

UsingDeclarator

type UsingDeclarator: UsingInForOfDeclarator | UsingInNormalContextDeclarator;

Source

special/VariableDeclarator/spec.ts:64

VariableDeclaration

type VariableDeclaration: LetOrConstOrVarDeclaration | UsingDeclaration;

Source

declaration/VariableDeclaration/spec.ts:140

VariableDeclarator

type VariableDeclarator: LetOrConstOrVarDeclarator | UsingDeclarator;

Source

special/VariableDeclarator/spec.ts:68

Enumerations
- AST_NODE_TYPES
- AST_TOKEN_TYPES
Interfaces
Type Aliases

Enumerations​

AST_NODE_TYPES​

Enumeration Members​

AST_TOKEN_TYPES​

Enumeration Members​

Interfaces​

AccessorPropertyComputedName​

Extends​

Properties​

AccessorPropertyNonComputedName​

Extends​

Properties​

ArrayExpression​

Extends​

Properties​

ArrayPattern​

Extends​

Properties​

ArrowFunctionExpression​

Extends​

Properties​

AssignmentExpression​

Extends​

Properties​

AssignmentOperatorToText​

Extended by​

Properties​

AssignmentPattern​

Extends​

Properties​

AwaitExpression​

Extends​

Properties​

BaseNode​

Extends​

Extended by​

Properties​

BigIntLiteral​

Extends​

Properties​

BinaryExpression​

Extends​

Properties​

BinaryOperatorToText​

Properties​

BlockComment​

Extends​

Properties​

BlockStatement​

Extends​

Properties​

BooleanLiteral​

Extends​

Properties​

BooleanToken​

Extends​

Properties​

BreakStatement​

Extends​

Properties​

CallExpression​

Extends​

Properties​

CatchClause​

Extends​

Properties​

ChainExpression​

Extends​

Properties​

ClassBody​

Extends​

Properties​

ClassDeclarationWithName​

Extends​

Properties​

ClassDeclarationWithOptionalName​

Extends​

Properties​

ClassExpression​

Extends​

Enumerations

AST_NODE_TYPES

Enumeration Members

AST_TOKEN_TYPES

Enumeration Members

Interfaces

AccessorPropertyComputedName

Extends

Properties

AccessorPropertyNonComputedName

Extends

Properties

ArrayExpression

Extends

Properties

ArrayPattern

Extends

Properties

ArrowFunctionExpression

Extends

Properties

AssignmentExpression

Extends

Properties

AssignmentOperatorToText

Extended by

Properties

AssignmentPattern

Extends

Properties

AwaitExpression

Extends

Properties

BaseNode

Extends

Extended by

Properties

BigIntLiteral

Extends

Properties

BinaryExpression

Extends

Properties

BinaryOperatorToText

Properties

BlockComment

Extends

Properties

BlockStatement

Extends

Properties

BooleanLiteral

Extends

Properties

BooleanToken

Extends

Properties

BreakStatement

Extends

Properties

CallExpression

Extends

Properties

CatchClause

Extends

Properties

ChainExpression

Extends

Properties

ClassBody

Extends

Properties

ClassDeclarationWithName

Extends

Properties

ClassDeclarationWithOptionalName

Extends

Properties

ClassExpression

Extends