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This module contains methods for building ASTs manually and for checking the types of AST nodes.
npm install --save-dev babel-types
t.anyTypeAnnotation()
See also t.isAnyTypeAnnotation(node, opts)
and t.assertAnyTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.arrayExpression(elements)
See also t.isArrayExpression(node, opts)
and t.assertArrayExpression(node, opts)
.
Aliases: Expression
elements
: Array<null | Expression | SpreadElement>
(default: []
)t.arrayPattern(elements, typeAnnotation)
See also t.isArrayPattern(node, opts)
and t.assertArrayPattern(node, opts)
.
Aliases: Pattern
, LVal
elements
: Array<Identifier | Pattern | RestElement>
(required)typeAnnotation
(required)decorators
: Array<Decorator>
(default: null
)t.arrayTypeAnnotation(elementType)
See also t.isArrayTypeAnnotation(node, opts)
and t.assertArrayTypeAnnotation(node, opts)
.
Aliases: Flow
elementType
(required)t.arrowFunctionExpression(params, body, async)
See also t.isArrowFunctionExpression(node, opts)
and t.assertArrowFunctionExpression(node, opts)
.
Aliases: Scopable
, Function
, BlockParent
, FunctionParent
, Expression
, Pureish
params
: Array<LVal>
(required)body
: BlockStatement | Expression
(required)async
: boolean
(default: false
)returnType
(default: null
)typeParameters
(default: null
)t.assignmentExpression(operator, left, right)
See also t.isAssignmentExpression(node, opts)
and t.assertAssignmentExpression(node, opts)
.
Aliases: Expression
operator
: string
(required)left
: LVal
(required)right
: Expression
(required)t.assignmentPattern(left, right)
See also t.isAssignmentPattern(node, opts)
and t.assertAssignmentPattern(node, opts)
.
Aliases: Pattern
, LVal
left
: Identifier
(required)right
: Expression
(required)decorators
: Array<Decorator>
(default: null
)t.awaitExpression(argument)
See also t.isAwaitExpression(node, opts)
and t.assertAwaitExpression(node, opts)
.
Aliases: Expression
, Terminatorless
argument
: Expression
(required)t.binaryExpression(operator, left, right)
See also t.isBinaryExpression(node, opts)
and t.assertBinaryExpression(node, opts)
.
Aliases: Binary
, Expression
operator
: '+' | '-' | '/' | '%' | '*' | '**' | '&' | '|' | '>>' | '>>>' | '<<' | '^' | '==' | '===' | '!=' | '!==' | 'in' | 'instanceof' | '>' | '<' | '>=' | '<='
(required)left
: Expression
(required)right
: Expression
(required)t.bindExpression(object, callee)
See also t.isBindExpression(node, opts)
and t.assertBindExpression(node, opts)
.
Aliases: Expression
object
(required)callee
(required)t.blockStatement(body, directives)
See also t.isBlockStatement(node, opts)
and t.assertBlockStatement(node, opts)
.
Aliases: Scopable
, BlockParent
, Block
, Statement
body
: Array<Statement>
(required)directives
: Array<Directive>
(default: []
)t.booleanLiteral(value)
See also t.isBooleanLiteral(node, opts)
and t.assertBooleanLiteral(node, opts)
.
Aliases: Expression
, Pureish
, Literal
, Immutable
value
: boolean
(required)t.booleanLiteralTypeAnnotation()
See also t.isBooleanLiteralTypeAnnotation(node, opts)
and t.assertBooleanLiteralTypeAnnotation(node, opts)
.
Aliases: Flow
t.booleanTypeAnnotation()
See also t.isBooleanTypeAnnotation(node, opts)
and t.assertBooleanTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.breakStatement(label)
See also t.isBreakStatement(node, opts)
and t.assertBreakStatement(node, opts)
.
Aliases: Statement
, Terminatorless
, CompletionStatement
label
: Identifier
(default: null
)t.callExpression(callee, arguments)
See also t.isCallExpression(node, opts)
and t.assertCallExpression(node, opts)
.
Aliases: Expression
callee
: Expression
(required)arguments
: Array<Expression | SpreadElement>
(required)t.catchClause(param, body)
See also t.isCatchClause(node, opts)
and t.assertCatchClause(node, opts)
.
Aliases: Scopable
param
: Identifier
(required)body
: BlockStatement
(required)t.classBody(body)
See also t.isClassBody(node, opts)
and t.assertClassBody(node, opts)
.
body
: Array<ClassMethod | ClassProperty>
(required)t.classDeclaration(id, superClass, body, decorators)
See also t.isClassDeclaration(node, opts)
and t.assertClassDeclaration(node, opts)
.
Aliases: Scopable
, Class
, Statement
, Declaration
, Pureish
id
: Identifier
(required)superClass
: Expression
(default: null
)body
: ClassBody
(required)decorators
: Array<Decorator>
(required)implements
(default: null
)mixins
(default: null
)superTypeParameters
(default: null
)typeParameters
(default: null
)t.classExpression(id, superClass, body, decorators)
See also t.isClassExpression(node, opts)
and t.assertClassExpression(node, opts)
.
Aliases: Scopable
, Class
, Expression
, Pureish
id
: Identifier
(default: null
)superClass
: Expression
(default: null
)body
: ClassBody
(required)decorators
: Array<Decorator>
(required)implements
(default: null
)mixins
(default: null
)superTypeParameters
(default: null
)typeParameters
(default: null
)t.classImplements(id, typeParameters)
See also t.isClassImplements(node, opts)
and t.assertClassImplements(node, opts)
.
Aliases: Flow
id
(required)typeParameters
(required)t.classMethod(kind, key, params, body, computed, static)
See also t.isClassMethod(node, opts)
and t.assertClassMethod(node, opts)
.
Aliases: Function
, Scopable
, BlockParent
, FunctionParent
, Method
kind
: "get" | "set" | "method" | "constructor"
(default: 'method'
)key
if computed then Expression
else Identifier | Literal
(required)params
: Array<LVal>
(required)body
: BlockStatement
(required)computed
: boolean
(default: false
)static
: boolean
(default: false
)async
: boolean
(default: false
)decorators
(default: null
)generator
: boolean
(default: false
)returnType
(default: null
)typeParameters
(default: null
)t.classProperty(key, value, typeAnnotation, decorators, computed)
See also t.isClassProperty(node, opts)
and t.assertClassProperty(node, opts)
.
Aliases: Property
key
(required)value
(required)typeAnnotation
(required)decorators
(required)computed
: boolean
(default: false
)t.conditionalExpression(test, consequent, alternate)
See also t.isConditionalExpression(node, opts)
and t.assertConditionalExpression(node, opts)
.
Aliases: Expression
, Conditional
test
: Expression
(required)consequent
: Expression
(required)alternate
: Expression
(required)t.continueStatement(label)
See also t.isContinueStatement(node, opts)
and t.assertContinueStatement(node, opts)
.
Aliases: Statement
, Terminatorless
, CompletionStatement
label
: Identifier
(default: null
)t.debuggerStatement()
See also t.isDebuggerStatement(node, opts)
and t.assertDebuggerStatement(node, opts)
.
Aliases: Statement
t.declareClass(id, typeParameters, extends, body)
See also t.isDeclareClass(node, opts)
and t.assertDeclareClass(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)typeParameters
(required)extends
(required)body
(required)t.declareExportDeclaration(declaration, specifiers, source)
See also t.isDeclareExportDeclaration(node, opts)
and t.assertDeclareExportDeclaration(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
declaration
(required)specifiers
(required)source
(required)t.declareFunction(id)
See also t.isDeclareFunction(node, opts)
and t.assertDeclareFunction(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)t.declareInterface(id, typeParameters, extends, body)
See also t.isDeclareInterface(node, opts)
and t.assertDeclareInterface(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)typeParameters
(required)extends
(required)body
(required)t.declareModule(id, body)
See also t.isDeclareModule(node, opts)
and t.assertDeclareModule(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)body
(required)t.declareModuleExports(typeAnnotation)
See also t.isDeclareModuleExports(node, opts)
and t.assertDeclareModuleExports(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
typeAnnotation
(required)t.declareOpaqueType(id, typeParameters, supertype)
See also t.isDeclareOpaqueType(node, opts)
and t.assertDeclareOpaqueType(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)typeParameters
(required)supertype
(required)t.declareTypeAlias(id, typeParameters, right)
See also t.isDeclareTypeAlias(node, opts)
and t.assertDeclareTypeAlias(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)typeParameters
(required)right
(required)t.declareVariable(id)
See also t.isDeclareVariable(node, opts)
and t.assertDeclareVariable(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)t.decorator(expression)
See also t.isDecorator(node, opts)
and t.assertDecorator(node, opts)
.
expression
: Expression
(required)t.directive(value)
See also t.isDirective(node, opts)
and t.assertDirective(node, opts)
.
value
: DirectiveLiteral
(required)t.directiveLiteral(value)
See also t.isDirectiveLiteral(node, opts)
and t.assertDirectiveLiteral(node, opts)
.
value
: string
(required)t.doExpression(body)
See also t.isDoExpression(node, opts)
and t.assertDoExpression(node, opts)
.
Aliases: Expression
body
: BlockStatement
(required)t.doWhileStatement(test, body)
See also t.isDoWhileStatement(node, opts)
and t.assertDoWhileStatement(node, opts)
.
Aliases: Statement
, BlockParent
, Loop
, While
, Scopable
test
: Expression
(required)body
: Statement
(required)t.emptyStatement()
See also t.isEmptyStatement(node, opts)
and t.assertEmptyStatement(node, opts)
.
Aliases: Statement
t.emptyTypeAnnotation()
See also t.isEmptyTypeAnnotation(node, opts)
and t.assertEmptyTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.existentialTypeParam()
See also t.isExistentialTypeParam(node, opts)
and t.assertExistentialTypeParam(node, opts)
.
Aliases: Flow
t.exportAllDeclaration(source)
See also t.isExportAllDeclaration(node, opts)
and t.assertExportAllDeclaration(node, opts)
.
Aliases: Statement
, Declaration
, ModuleDeclaration
, ExportDeclaration
source
: StringLiteral
(required)t.exportDefaultDeclaration(declaration)
See also t.isExportDefaultDeclaration(node, opts)
and t.assertExportDefaultDeclaration(node, opts)
.
Aliases: Statement
, Declaration
, ModuleDeclaration
, ExportDeclaration
declaration
: FunctionDeclaration | ClassDeclaration | Expression
(required)t.exportDefaultSpecifier(exported)
See also t.isExportDefaultSpecifier(node, opts)
and t.assertExportDefaultSpecifier(node, opts)
.
Aliases: ModuleSpecifier
exported
: Identifier
(required)t.exportNamedDeclaration(declaration, specifiers, source)
See also t.isExportNamedDeclaration(node, opts)
and t.assertExportNamedDeclaration(node, opts)
.
Aliases: Statement
, Declaration
, ModuleDeclaration
, ExportDeclaration
declaration
: Declaration
(default: null
)specifiers
: Array<ExportSpecifier>
(required)source
: StringLiteral
(default: null
)t.exportNamespaceSpecifier(exported)
See also t.isExportNamespaceSpecifier(node, opts)
and t.assertExportNamespaceSpecifier(node, opts)
.
Aliases: ModuleSpecifier
exported
: Identifier
(required)t.exportSpecifier(local, exported)
See also t.isExportSpecifier(node, opts)
and t.assertExportSpecifier(node, opts)
.
Aliases: ModuleSpecifier
local
: Identifier
(required)exported
: Identifier
(required)t.expressionStatement(expression)
See also t.isExpressionStatement(node, opts)
and t.assertExpressionStatement(node, opts)
.
Aliases: Statement
, ExpressionWrapper
expression
: Expression
(required)t.file(program, comments, tokens)
See also t.isFile(node, opts)
and t.assertFile(node, opts)
.
program
: Program
(required)comments
(required)tokens
(required)t.forAwaitStatement(left, right, body)
See also t.isForAwaitStatement(node, opts)
and t.assertForAwaitStatement(node, opts)
.
Aliases: Scopable
, Statement
, For
, BlockParent
, Loop
, ForXStatement
left
: VariableDeclaration | LVal
(required)right
: Expression
(required)body
: Statement
(required)t.forInStatement(left, right, body)
See also t.isForInStatement(node, opts)
and t.assertForInStatement(node, opts)
.
Aliases: Scopable
, Statement
, For
, BlockParent
, Loop
, ForXStatement
left
: VariableDeclaration | LVal
(required)right
: Expression
(required)body
: Statement
(required)t.forOfStatement(left, right, body)
See also t.isForOfStatement(node, opts)
and t.assertForOfStatement(node, opts)
.
Aliases: Scopable
, Statement
, For
, BlockParent
, Loop
, ForXStatement
left
: VariableDeclaration | LVal
(required)right
: Expression
(required)body
: Statement
(required)t.forStatement(init, test, update, body)
See also t.isForStatement(node, opts)
and t.assertForStatement(node, opts)
.
Aliases: Scopable
, Statement
, For
, BlockParent
, Loop
init
: VariableDeclaration | Expression
(default: null
)test
: Expression
(default: null
)update
: Expression
(default: null
)body
: Statement
(required)t.functionDeclaration(id, params, body, generator, async)
See also t.isFunctionDeclaration(node, opts)
and t.assertFunctionDeclaration(node, opts)
.
Aliases: Scopable
, Function
, BlockParent
, FunctionParent
, Statement
, Pureish
, Declaration
id
: Identifier
(required)params
: Array<LVal>
(required)body
: BlockStatement
(required)generator
: boolean
(default: false
)async
: boolean
(default: false
)returnType
(default: null
)typeParameters
(default: null
)t.functionExpression(id, params, body, generator, async)
See also t.isFunctionExpression(node, opts)
and t.assertFunctionExpression(node, opts)
.
Aliases: Scopable
, Function
, BlockParent
, FunctionParent
, Expression
, Pureish
id
: Identifier
(default: null
)params
: Array<LVal>
(required)body
: BlockStatement
(required)generator
: boolean
(default: false
)async
: boolean
(default: false
)returnType
(default: null
)typeParameters
(default: null
)t.functionTypeAnnotation(typeParameters, params, rest, returnType)
See also t.isFunctionTypeAnnotation(node, opts)
and t.assertFunctionTypeAnnotation(node, opts)
.
Aliases: Flow
typeParameters
(required)params
(required)rest
(required)returnType
(required)t.functionTypeParam(name, typeAnnotation)
See also t.isFunctionTypeParam(node, opts)
and t.assertFunctionTypeParam(node, opts)
.
Aliases: Flow
name
(required)typeAnnotation
(required)t.genericTypeAnnotation(id, typeParameters)
See also t.isGenericTypeAnnotation(node, opts)
and t.assertGenericTypeAnnotation(node, opts)
.
Aliases: Flow
id
(required)typeParameters
(required)t.identifier(name)
See also t.isIdentifier(node, opts)
and t.assertIdentifier(node, opts)
.
Aliases: Expression
, LVal
name
string
(required)decorators
: Array<Decorator>
(default: null
)typeAnnotation
(default: null
)t.ifStatement(test, consequent, alternate)
See also t.isIfStatement(node, opts)
and t.assertIfStatement(node, opts)
.
Aliases: Statement
, Conditional
test
: Expression
(required)consequent
: Statement
(required)alternate
: Statement
(default: null
)t.import()
See also t.isImport(node, opts)
and t.assertImport(node, opts)
.
Aliases: Expression
t.importDeclaration(specifiers, source)
See also t.isImportDeclaration(node, opts)
and t.assertImportDeclaration(node, opts)
.
Aliases: Statement
, Declaration
, ModuleDeclaration
specifiers
: Array<ImportSpecifier | ImportDefaultSpecifier | ImportNamespaceSpecifier>
(required)source
: StringLiteral
(required)t.importDefaultSpecifier(local)
See also t.isImportDefaultSpecifier(node, opts)
and t.assertImportDefaultSpecifier(node, opts)
.
Aliases: ModuleSpecifier
local
: Identifier
(required)t.importNamespaceSpecifier(local)
See also t.isImportNamespaceSpecifier(node, opts)
and t.assertImportNamespaceSpecifier(node, opts)
.
Aliases: ModuleSpecifier
local
: Identifier
(required)t.importSpecifier(local, imported)
See also t.isImportSpecifier(node, opts)
and t.assertImportSpecifier(node, opts)
.
Aliases: ModuleSpecifier
local
: Identifier
(required)imported
: Identifier
(required)importKind
: null | 'type' | 'typeof'
(default: null
)t.interfaceDeclaration(id, typeParameters, extends, body)
See also t.isInterfaceDeclaration(node, opts)
and t.assertInterfaceDeclaration(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)typeParameters
(required)extends
(required)body
(required)t.interfaceExtends(id, typeParameters)
See also t.isInterfaceExtends(node, opts)
and t.assertInterfaceExtends(node, opts)
.
Aliases: Flow
id
(required)typeParameters
(required)t.intersectionTypeAnnotation(types)
See also t.isIntersectionTypeAnnotation(node, opts)
and t.assertIntersectionTypeAnnotation(node, opts)
.
Aliases: Flow
types
(required)t.jSXAttribute(name, value)
See also t.isJSXAttribute(node, opts)
and t.assertJSXAttribute(node, opts)
.
Aliases: JSX
, Immutable
name
: JSXIdentifier | JSXNamespacedName
(required)value
: JSXElement | StringLiteral | JSXExpressionContainer
(default: null
)t.jSXClosingElement(name)
See also t.isJSXClosingElement(node, opts)
and t.assertJSXClosingElement(node, opts)
.
Aliases: JSX
, Immutable
name
: JSXIdentifier | JSXMemberExpression
(required)t.jSXElement(openingElement, closingElement, children, selfClosing)
See also t.isJSXElement(node, opts)
and t.assertJSXElement(node, opts)
.
Aliases: JSX
, Immutable
, Expression
openingElement
: JSXOpeningElement
(required)closingElement
: JSXClosingElement
(default: null
)children
: Array<JSXText | JSXExpressionContainer | JSXSpreadChild | JSXElement>
(required)selfClosing
(required)t.jSXEmptyExpression()
See also t.isJSXEmptyExpression(node, opts)
and t.assertJSXEmptyExpression(node, opts)
.
Aliases: JSX
, Expression
t.jSXExpressionContainer(expression)
See also t.isJSXExpressionContainer(node, opts)
and t.assertJSXExpressionContainer(node, opts)
.
Aliases: JSX
, Immutable
expression
: Expression
(required)t.jSXIdentifier(name)
See also t.isJSXIdentifier(node, opts)
and t.assertJSXIdentifier(node, opts)
.
Aliases: JSX
, Expression
name
: string
(required)t.jSXMemberExpression(object, property)
See also t.isJSXMemberExpression(node, opts)
and t.assertJSXMemberExpression(node, opts)
.
Aliases: JSX
, Expression
object
: JSXMemberExpression | JSXIdentifier
(required)property
: JSXIdentifier
(required)t.jSXNamespacedName(namespace, name)
See also t.isJSXNamespacedName(node, opts)
and t.assertJSXNamespacedName(node, opts)
.
Aliases: JSX
namespace
: JSXIdentifier
(required)name
: JSXIdentifier
(required)t.jSXOpeningElement(name, attributes, selfClosing)
See also t.isJSXOpeningElement(node, opts)
and t.assertJSXOpeningElement(node, opts)
.
Aliases: JSX
, Immutable
name
: JSXIdentifier | JSXMemberExpression
(required)attributes
: Array<JSXAttribute | JSXSpreadAttribute>
(required)selfClosing
: boolean
(default: false
)t.jSXSpreadAttribute(argument)
See also t.isJSXSpreadAttribute(node, opts)
and t.assertJSXSpreadAttribute(node, opts)
.
Aliases: JSX
argument
: Expression
(required)t.jSXSpreadChild(expression)
See also t.isJSXSpreadChild(node, opts)
and t.assertJSXSpreadChild(node, opts)
.
Aliases: JSX
, Immutable
expression
: Expression
(required)t.jSXText(value)
See also t.isJSXText(node, opts)
and t.assertJSXText(node, opts)
.
Aliases: JSX
, Immutable
value
: string
(required)t.labeledStatement(label, body)
See also t.isLabeledStatement(node, opts)
and t.assertLabeledStatement(node, opts)
.
Aliases: Statement
label
: Identifier
(required)body
: Statement
(required)t.logicalExpression(operator, left, right)
See also t.isLogicalExpression(node, opts)
and t.assertLogicalExpression(node, opts)
.
Aliases: Binary
, Expression
operator
: '||' | '&&'
(required)left
: Expression
(required)right
: Expression
(required)t.memberExpression(object, property, computed)
See also t.isMemberExpression(node, opts)
and t.assertMemberExpression(node, opts)
.
Aliases: Expression
, LVal
object
: Expression
(required)property
if computed then Expression
else Identifier
(required)computed
: boolean
(default: false
)t.metaProperty(meta, property)
See also t.isMetaProperty(node, opts)
and t.assertMetaProperty(node, opts)
.
Aliases: Expression
meta
: string
(required)property
: string
(required)t.mixedTypeAnnotation()
See also t.isMixedTypeAnnotation(node, opts)
and t.assertMixedTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.newExpression(callee, arguments)
See also t.isNewExpression(node, opts)
and t.assertNewExpression(node, opts)
.
Aliases: Expression
callee
: Expression
(required)arguments
: Array<Expression | SpreadElement>
(required)t.noop()
See also t.isNoop(node, opts)
and t.assertNoop(node, opts)
.
t.nullLiteral()
See also t.isNullLiteral(node, opts)
and t.assertNullLiteral(node, opts)
.
Aliases: Expression
, Pureish
, Literal
, Immutable
t.nullLiteralTypeAnnotation()
See also t.isNullLiteralTypeAnnotation(node, opts)
and t.assertNullLiteralTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.nullableTypeAnnotation(typeAnnotation)
See also t.isNullableTypeAnnotation(node, opts)
and t.assertNullableTypeAnnotation(node, opts)
.
Aliases: Flow
typeAnnotation
(required)t.numberTypeAnnotation()
See also t.isNumberTypeAnnotation(node, opts)
and t.assertNumberTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.numericLiteral(value)
See also t.isNumericLiteral(node, opts)
and t.assertNumericLiteral(node, opts)
.
Aliases: Expression
, Pureish
, Literal
, Immutable
value
: number
(required)t.numericLiteralTypeAnnotation()
See also t.isNumericLiteralTypeAnnotation(node, opts)
and t.assertNumericLiteralTypeAnnotation(node, opts)
.
Aliases: Flow
t.objectExpression(properties)
See also t.isObjectExpression(node, opts)
and t.assertObjectExpression(node, opts)
.
Aliases: Expression
properties
: Array<ObjectMethod | ObjectProperty | SpreadProperty>
(required)t.objectMethod(kind, key, params, body, computed)
See also t.isObjectMethod(node, opts)
and t.assertObjectMethod(node, opts)
.
Aliases: UserWhitespacable
, Function
, Scopable
, BlockParent
, FunctionParent
, Method
, ObjectMember
kind
: "method" | "get" | "set"
(default: 'method'
)key
if computed then Expression
else Identifier | Literal
(required)params
(required)body
: BlockStatement
(required)computed
: boolean
(default: false
)async
: boolean
(default: false
)decorators
: Array<Decorator>
(default: null
)generator
: boolean
(default: false
)returnType
(default: null
)typeParameters
(default: null
)t.objectPattern(properties, typeAnnotation)
See also t.isObjectPattern(node, opts)
and t.assertObjectPattern(node, opts)
.
Aliases: Pattern
, LVal
properties
: Array<RestProperty | Property>
(required)typeAnnotation
(required)decorators
: Array<Decorator>
(default: null
)t.objectProperty(key, value, computed, shorthand, decorators)
See also t.isObjectProperty(node, opts)
and t.assertObjectProperty(node, opts)
.
Aliases: UserWhitespacable
, Property
, ObjectMember
key
if computed then Expression
else Identifier | Literal
(required)value
: Expression | Pattern | RestElement
(required)computed
: boolean
(default: false
)shorthand
: boolean
(default: false
)decorators
: Array<Decorator>
(default: null
)t.objectTypeAnnotation(properties, indexers, callProperties)
See also t.isObjectTypeAnnotation(node, opts)
and t.assertObjectTypeAnnotation(node, opts)
.
Aliases: Flow
properties
(required)indexers
(required)callProperties
(required)t.objectTypeCallProperty(value)
See also t.isObjectTypeCallProperty(node, opts)
and t.assertObjectTypeCallProperty(node, opts)
.
Aliases: Flow
, UserWhitespacable
value
(required)t.objectTypeIndexer(id, key, value)
See also t.isObjectTypeIndexer(node, opts)
and t.assertObjectTypeIndexer(node, opts)
.
Aliases: Flow
, UserWhitespacable
id
(required)key
(required)value
(required)t.objectTypeProperty(key, value)
See also t.isObjectTypeProperty(node, opts)
and t.assertObjectTypeProperty(node, opts)
.
Aliases: Flow
, UserWhitespacable
key
(required)value
(required)t.objectTypeSpreadProperty(argument)
See also t.isObjectTypeSpreadProperty(node, opts)
and t.assertObjectTypeSpreadProperty(node, opts)
.
Aliases: Flow
, UserWhitespacable
argument
(required)t.opaqueType(id, typeParameters, impltype, supertype)
See also t.isOpaqueType(node, opts)
and t.assertOpaqueType(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)typeParameters
(required)impltype
(required)supertype
(required)t.parenthesizedExpression(expression)
See also t.isParenthesizedExpression(node, opts)
and t.assertParenthesizedExpression(node, opts)
.
Aliases: Expression
, ExpressionWrapper
expression
: Expression
(required)t.program(body, directives)
See also t.isProgram(node, opts)
and t.assertProgram(node, opts)
.
Aliases: Scopable
, BlockParent
, Block
, FunctionParent
body
: Array<Statement>
(required)directives
: Array<Directive>
(default: []
)t.qualifiedTypeIdentifier(id, qualification)
See also t.isQualifiedTypeIdentifier(node, opts)
and t.assertQualifiedTypeIdentifier(node, opts)
.
Aliases: Flow
id
(required)qualification
(required)t.regExpLiteral(pattern, flags)
See also t.isRegExpLiteral(node, opts)
and t.assertRegExpLiteral(node, opts)
.
Aliases: Expression
, Literal
pattern
: string
(required)flags
: string
(default: ''
)t.restElement(argument, typeAnnotation)
See also t.isRestElement(node, opts)
and t.assertRestElement(node, opts)
.
Aliases: LVal
argument
: LVal
(required)typeAnnotation
(required)decorators
: Array<Decorator>
(default: null
)t.restProperty(argument)
See also t.isRestProperty(node, opts)
and t.assertRestProperty(node, opts)
.
Aliases: UnaryLike
argument
: LVal
(required)t.returnStatement(argument)
See also t.isReturnStatement(node, opts)
and t.assertReturnStatement(node, opts)
.
Aliases: Statement
, Terminatorless
, CompletionStatement
argument
: Expression
(default: null
)t.sequenceExpression(expressions)
See also t.isSequenceExpression(node, opts)
and t.assertSequenceExpression(node, opts)
.
Aliases: Expression
expressions
: Array<Expression>
(required)t.spreadElement(argument)
See also t.isSpreadElement(node, opts)
and t.assertSpreadElement(node, opts)
.
Aliases: UnaryLike
argument
: Expression
(required)t.spreadProperty(argument)
See also t.isSpreadProperty(node, opts)
and t.assertSpreadProperty(node, opts)
.
Aliases: UnaryLike
argument
: Expression
(required)t.stringLiteral(value)
See also t.isStringLiteral(node, opts)
and t.assertStringLiteral(node, opts)
.
Aliases: Expression
, Pureish
, Literal
, Immutable
value
: string
(required)t.stringLiteralTypeAnnotation()
See also t.isStringLiteralTypeAnnotation(node, opts)
and t.assertStringLiteralTypeAnnotation(node, opts)
.
Aliases: Flow
t.stringTypeAnnotation()
See also t.isStringTypeAnnotation(node, opts)
and t.assertStringTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.super()
See also t.isSuper(node, opts)
and t.assertSuper(node, opts)
.
Aliases: Expression
t.switchCase(test, consequent)
See also t.isSwitchCase(node, opts)
and t.assertSwitchCase(node, opts)
.
test
: Expression
(default: null
)consequent
: Array<Statement>
(required)t.switchStatement(discriminant, cases)
See also t.isSwitchStatement(node, opts)
and t.assertSwitchStatement(node, opts)
.
Aliases: Statement
, BlockParent
, Scopable
discriminant
: Expression
(required)cases
: Array<SwitchCase>
(required)t.taggedTemplateExpression(tag, quasi)
See also t.isTaggedTemplateExpression(node, opts)
and t.assertTaggedTemplateExpression(node, opts)
.
Aliases: Expression
tag
: Expression
(required)quasi
: TemplateLiteral
(required)t.templateElement(value, tail)
See also t.isTemplateElement(node, opts)
and t.assertTemplateElement(node, opts)
.
value
(required)tail
: boolean
(default: false
)t.templateLiteral(quasis, expressions)
See also t.isTemplateLiteral(node, opts)
and t.assertTemplateLiteral(node, opts)
.
Aliases: Expression
, Literal
quasis
: Array<TemplateElement>
(required)expressions
: Array<Expression>
(required)t.thisExpression()
See also t.isThisExpression(node, opts)
and t.assertThisExpression(node, opts)
.
Aliases: Expression
t.thisTypeAnnotation()
See also t.isThisTypeAnnotation(node, opts)
and t.assertThisTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.throwStatement(argument)
See also t.isThrowStatement(node, opts)
and t.assertThrowStatement(node, opts)
.
Aliases: Statement
, Terminatorless
, CompletionStatement
argument
: Expression
(required)t.tryStatement(block, handler, finalizer)
See also t.isTryStatement(node, opts)
and t.assertTryStatement(node, opts)
.
Aliases: Statement
block
(required)handler
(default: null
)finalizer
: BlockStatement
(default: null
)body
: BlockStatement
(default: null
)t.tupleTypeAnnotation(types)
See also t.isTupleTypeAnnotation(node, opts)
and t.assertTupleTypeAnnotation(node, opts)
.
Aliases: Flow
types
(required)t.typeAlias(id, typeParameters, right)
See also t.isTypeAlias(node, opts)
and t.assertTypeAlias(node, opts)
.
Aliases: Flow
, FlowDeclaration
, Statement
, Declaration
id
(required)typeParameters
(required)right
(required)t.typeAnnotation(typeAnnotation)
See also t.isTypeAnnotation(node, opts)
and t.assertTypeAnnotation(node, opts)
.
Aliases: Flow
typeAnnotation
(required)t.typeCastExpression(expression, typeAnnotation)
See also t.isTypeCastExpression(node, opts)
and t.assertTypeCastExpression(node, opts)
.
Aliases: Flow
, ExpressionWrapper
, Expression
expression
(required)typeAnnotation
(required)t.typeParameter(bound)
See also t.isTypeParameter(node, opts)
and t.assertTypeParameter(node, opts)
.
Aliases: Flow
bound
(required)t.typeParameterDeclaration(params)
See also t.isTypeParameterDeclaration(node, opts)
and t.assertTypeParameterDeclaration(node, opts)
.
Aliases: Flow
params
(required)t.typeParameterInstantiation(params)
See also t.isTypeParameterInstantiation(node, opts)
and t.assertTypeParameterInstantiation(node, opts)
.
Aliases: Flow
params
(required)t.typeofTypeAnnotation(argument)
See also t.isTypeofTypeAnnotation(node, opts)
and t.assertTypeofTypeAnnotation(node, opts)
.
Aliases: Flow
argument
(required)t.unaryExpression(operator, argument, prefix)
See also t.isUnaryExpression(node, opts)
and t.assertUnaryExpression(node, opts)
.
Aliases: UnaryLike
, Expression
operator
: 'void' | 'delete' | '!' | '+' | '-' | '++' | '--' | '~' | 'typeof'
(required)argument
: Expression
(required)prefix
: boolean
(default: true
)t.unionTypeAnnotation(types)
See also t.isUnionTypeAnnotation(node, opts)
and t.assertUnionTypeAnnotation(node, opts)
.
Aliases: Flow
types
(required)t.updateExpression(operator, argument, prefix)
See also t.isUpdateExpression(node, opts)
and t.assertUpdateExpression(node, opts)
.
Aliases: Expression
operator
: '++' | '--'
(required)argument
: Expression
(required)prefix
: boolean
(default: false
)t.variableDeclaration(kind, declarations)
See also t.isVariableDeclaration(node, opts)
and t.assertVariableDeclaration(node, opts)
.
Aliases: Statement
, Declaration
kind
: "var" | "let" | "const"
(required)declarations
: Array<VariableDeclarator>
(required)t.variableDeclarator(id, init)
See also t.isVariableDeclarator(node, opts)
and t.assertVariableDeclarator(node, opts)
.
id
: LVal
(required)init
: Expression
(default: null
)t.voidTypeAnnotation()
See also t.isVoidTypeAnnotation(node, opts)
and t.assertVoidTypeAnnotation(node, opts)
.
Aliases: Flow
, FlowBaseAnnotation
t.whileStatement(test, body)
See also t.isWhileStatement(node, opts)
and t.assertWhileStatement(node, opts)
.
Aliases: Statement
, BlockParent
, Loop
, While
, Scopable
test
: Expression
(required)body
: BlockStatement | Statement
(required)t.withStatement(object, body)
See also t.isWithStatement(node, opts)
and t.assertWithStatement(node, opts)
.
Aliases: Statement
object
(required)body
: BlockStatement | Statement
(required)t.yieldExpression(argument, delegate)
See also t.isYieldExpression(node, opts)
and t.assertYieldExpression(node, opts)
.
Aliases: Expression
, Terminatorless
argument
: Expression
(default: null
)delegate
: boolean
(default: false
)