Skip to main content

Class: TypeDef

A definition of a parameter or return type in a Module.

Extends

  • BaseClient

Constructors

new TypeDef()

new TypeDef(parent?, _id?, _kind?, _optional?): TypeDef

Constructor is used for internal usage only, do not create object from it.

Parameters

parent?

parent.ctx?: Context

parent.queryTree?: QueryTree[]

_id?: TypeDefID

_kind?: TypeDefKind

_optional?: boolean

Returns

TypeDef

Overrides

BaseClient.constructor

Methods

asEnum()

asEnum(): EnumTypeDef

If kind is ENUM, the enum-specific type definition. If kind is not ENUM, this will be null.

Returns

EnumTypeDef


asInput()

asInput(): InputTypeDef

If kind is INPUT, the input-specific type definition. If kind is not INPUT, this will be null.

Returns

InputTypeDef


asInterface()

asInterface(): InterfaceTypeDef

If kind is INTERFACE, the interface-specific type definition. If kind is not INTERFACE, this will be null.

Returns

InterfaceTypeDef


asList()

asList(): ListTypeDef

If kind is LIST, the list-specific type definition. If kind is not LIST, this will be null.

Returns

ListTypeDef


asObject()

asObject(): ObjectTypeDef

If kind is OBJECT, the object-specific type definition. If kind is not OBJECT, this will be null.

Returns

ObjectTypeDef


asScalar()

asScalar(): ScalarTypeDef

If kind is SCALAR, the scalar-specific type definition. If kind is not SCALAR, this will be null.

Returns

ScalarTypeDef


id()

id(): Promise<TypeDefID>

A unique identifier for this TypeDef.

Returns

Promise<TypeDefID>


kind()

kind(): Promise<TypeDefKind>

The kind of type this is (e.g. primitive, list, object).

Returns

Promise<TypeDefKind>


optional()

optional(): Promise<boolean>

Whether this type can be set to null. Defaults to false.

Returns

Promise<boolean>


with()

with(arg): TypeDef

Call the provided function with current TypeDef.

This is useful for reusability and readability by not breaking the calling chain.

Parameters

arg

Returns

TypeDef


withConstructor()

withConstructor(function_): TypeDef

Adds a function for constructing a new instance of an Object TypeDef, failing if the type is not an object.

Parameters

function_: Function_

Returns

TypeDef


withEnum()

withEnum(name, opts?): TypeDef

Returns a TypeDef of kind Enum with the provided name.

Note that an enum's values may be omitted if the intent is only to refer to an enum. This is how functions are able to return their own, or any other circular reference.

Parameters

name: string

The name of the enum

opts?: TypeDefWithEnumOpts

Returns

TypeDef


withEnumValue()

withEnumValue(value, opts?): TypeDef

Adds a static value for an Enum TypeDef, failing if the type is not an enum.

Parameters

value: string

The name of the value in the enum

opts?: TypeDefWithEnumValueOpts

Returns

TypeDef


withField()

withField(name, typeDef, opts?): TypeDef

Adds a static field for an Object TypeDef, failing if the type is not an object.

Parameters

name: string

The name of the field in the object

typeDef: TypeDef

The type of the field

opts?: TypeDefWithFieldOpts

Returns

TypeDef


withFunction()

withFunction(function_): TypeDef

Adds a function for an Object or Interface TypeDef, failing if the type is not one of those kinds.

Parameters

function_: Function_

Returns

TypeDef


withInterface()

withInterface(name, opts?): TypeDef

Returns a TypeDef of kind Interface with the provided name.

Parameters

name: string

opts?: TypeDefWithInterfaceOpts

Returns

TypeDef


withKind()

withKind(kind): TypeDef

Sets the kind of the type.

Parameters

kind: TypeDefKind

Returns

TypeDef


withListOf()

withListOf(elementType): TypeDef

Returns a TypeDef of kind List with the provided type for its elements.

Parameters

elementType: TypeDef

Returns

TypeDef


withObject()

withObject(name, opts?): TypeDef

Returns a TypeDef of kind Object with the provided name.

Note that an object's fields and functions may be omitted if the intent is only to refer to an object. This is how functions are able to return their own object, or any other circular reference.

Parameters

name: string

opts?: TypeDefWithObjectOpts

Returns

TypeDef


withOptional()

withOptional(optional): TypeDef

Sets whether this type can be set to null.

Parameters

optional: boolean

Returns

TypeDef


withScalar()

withScalar(name, opts?): TypeDef

Returns a TypeDef of kind Scalar with the provided name.

Parameters

name: string

opts?: TypeDefWithScalarOpts

Returns

TypeDef