kitejs/io.github.yuroyami.kitejs/KnownBuiltInFunction

KnownBuiltInFunction

open class KnownBuiltInFunction(val tag: Any, scope: Scriptable, name: String, length: Int, prototype: Any?, target: SerializableCallable) : LambdaFunction

A LambdaFunction the engine recognises by its tag, so the interpreter and the runtime can treat it specially. Function.prototype.apply and call are the two that matter most.

Constructors

constructor(tag: Any, scope: Scriptable, name: String, length: Int, prototype: Any?, target: SerializableCallable)

Properties

allIds

open val allIds: Array<Any?>

Every property, enumerable or not.

arity

open override val arity: Int

What the arity property answers.

className

open override val className: String

The class name, as Object.prototype.toString reports it.

declarationScope

open val declarationScope: Scriptable?

The scope this function was declared in.

externalArrayData

val externalArrayData: ExternalArrayData?

externalArrayLength

val externalArrayLength: Any

functionName

override val functionName: String

What the name property answers. Empty for an anonymous function.

homeObject

open var homeObject: Scriptable?

The object a method was defined on, which super resolves against. Null for a plain function.

isExtensible

open val isExtensible: Boolean

isSealed

var isSealed: Boolean

length

override val length: Int

What the length property answers: how many arguments the function declares.

parentScope

open override var parentScope: Scriptable?

prototype

open override var prototype: Scriptable?

prototypeProperty

open val prototypeProperty: Any?

The prototype property: undefined when unset, null when explicitly set to null.

tag

val tag: Any

What the engine identifies this function by.

typeOf

open override val typeOf: String

"function", or "undefined" when avoidObjectDetection says so.

Functions

associateValue

fun associateValue(key: Any, value: Any): Any

Parks value under key, or returns what is already there.

avoidObjectDetection

open fun avoidObjectDetection(): Boolean

True for an object that has to pretend it is undefined, which only NativeWith does.

call

open override fun call(cx: Context, scope: Scriptable, thisObj: Scriptable?, args: Array<Any?>): Any?

Subclasses override this. The base does nothing.

construct

open override fun construct(cx: Context, scope: Scriptable, args: Array<Any?>): Scriptable

createObject

open fun createObject(cx: Context, scope: Scriptable): Scriptable?

Builds the object that construct passes to call as this. Returning null says that call will make the object itself, and construct then fixes up its scope and prototype.

defineBuiltinProperty

fun defineBuiltinProperty(scope: Scriptable, name: String, length: Int, target: SerializableCallable, attributes: Int = DONTENUM, propertyAttributes: Int = DONTENUM or READONLY)

Same as above for a built-in method, which does not get a prototype property.

defineConst

open override fun defineConst(name: String, start: Scriptable)

defineOwnProperties

fun defineOwnProperties(cx: Context, props: ScriptableObject)

defineOwnProperty

fun defineOwnProperty(cx: Context, id: Any?, desc: ScriptableObject): Boolean

open fun defineOwnProperty(cx: Context, id: Any?, desc: ScriptableObject.DescriptorInfo): Boolean

defineProperty

fun defineProperty(key: Symbol, value: Any?, attributes: Int)

fun defineProperty(propertyName: String, value: Any?, attributes: Int)

fun defineProperty(cx: Context, name: String, getter: ScriptableObject.LambdaGetterFunction, attributes: Int)

fun defineProperty(cx: Context, key: Symbol, getter: ScriptableObject.LambdaGetterFunction?, setter: ScriptableObject.LambdaSetterFunction?, attributes: Int)

fun defineProperty(cx: Context, name: String, getter: ScriptableObject.LambdaGetterFunction?, setter: ScriptableObject.LambdaSetterFunction?, attributes: Int)

fun defineProperty(name: String, getter: () -> Any??, setter: (Any?) -> Unit?, attributes: Int)

Defines a property whose value comes from a lambda that needs nothing but itself.

fun defineProperty(scope: Scriptable, name: String, length: Int, target: SerializableCallable, attributes: Int = DONTENUM, propertyAttributes: Int = DONTENUM or READONLY)

Defines a method backed by a Kotlin lambda.

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