Class: InvalidViewOutletError

API / @xmachines/play-view / errors / InvalidViewOutletError

Defined in: packages/play-view/src/errors.ts:81

An outlet of a meta.view names an element that the view does not hold.

The view derivation puts the view of a child state into the element that the outlet names. With no such element, the child view has no place on the screen, so the derivation refuses the composition. The actor reports the error through its onError option and keeps the last good view.

Example

import { definePlayer, compose, PlayerActor } from "@xmachines/play-xstate";
import { withView } from "@xmachines/play-xstate/view";
import { InvalidViewOutletError } from "@xmachines/play-view/errors";

const createPlayer = definePlayer({
  machine,
  actor: compose(PlayerActor, withView),
  options: {
    onError: (_actor, error) => {
      if (error instanceof InvalidViewOutletError) {
        console.error(`Fix meta.view.outlets of "${error.stateId}"`);
      }
    },
  },
});

Extends

PlayError

Constructors

Constructor

new InvalidViewOutletError(
   stateId,
   outlet,
   element
): InvalidViewOutletError;

Defined in: packages/play-view/src/errors.ts:92

Parameters

Parameter	Type	Description
`stateId`	`string`	The id of the state node that declares the outlet.
`outlet`	`string`	The key of the outlet.
`element`	`string`	The element key that the outlet names.

Returns

InvalidViewOutletError

Overrides

PlayError.constructor

Properties

Property	Modifier	Type	Description	Inherited from	Defined in
`cause?`	`public`	`unknown`	-	`PlayError`.`cause`	-
`code`	`readonly`	`string`	A stable, machine-readable identifier of the error. An error code follows the naming convention `<PACKAGE>_<DESCRIPTION>`, and a Play package writes `PLAY_<PACKAGE>_<DESCRIPTION>`. A code stays the same across each patch release and each minor release of one major version. Never match on `.message`. Always match on `.code`, or on the subclass.	`PlayError`.`code`	packages/core/src/errors.ts:56
`message`	`public`	`string`	-	`PlayError`.`message`	-
`name`	`public`	`string`	-	`PlayError`.`name`	-
`outlet`	`readonly`	`string`	The key of the outlet: a child state key, or `"*"`.	-	packages/play-view/src/errors.ts:85
`scope`	`readonly`	`string`	The class or the module that threw this error, for example `"asDisposable"`.	`PlayError`.`scope`	packages/core/src/errors.ts:46
`stack?`	`public`	`string`	-	`PlayError`.`stack`	-
`stateId`	`readonly`	`string`	The id of the state node whose `meta.view` declares the outlet.	-	packages/play-view/src/errors.ts:83
`stackTraceLimit`	`static`	`number`	The `Error.stackTraceLimit` property specifies the number of stack frames collected by a stack trace (whether generated by `new Error().stack` or `Error.captureStackTrace(obj)`). The default value is `10` but may be set to any valid JavaScript number. Changes will affect any stack trace captured after the value has been changed. If set to a non-number value, or set to a negative number, stack traces will not capture any frames.	`PlayError`.`stackTraceLimit`	-

Methods

captureStackTrace()

static captureStackTrace(targetObject, constructorOpt?): void;

Defined in: @types/node

Creates a .stack property on targetObject, which when accessed returns a string representing the location in the code at which Error.captureStackTrace() was called.

const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack; // Similar to `new Error().stack`

The first line of the trace will be prefixed with ${myObject.name}: ${myObject.message}.

The optional constructorOpt argument accepts a function. If given, all frames above constructorOpt, including constructorOpt, will be omitted from the generated stack trace.

The constructorOpt argument is useful for hiding implementation details of error generation from the user. For instance:

function a() {
  b();
}

function b() {
  c();
}

function c() {
  // Create an error without stack trace to avoid calculating the stack trace twice.
  const { stackTraceLimit } = Error;
  Error.stackTraceLimit = 0;
  const error = new Error();
  Error.stackTraceLimit = stackTraceLimit;

  // Capture the stack trace above function b
  Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
  throw error;
}

a();

Parameters

Parameter	Type
`targetObject`	`object`
`constructorOpt?`	`Function`

Returns

void

Inherited from

PlayError.captureStackTrace

isError()

static isError(error): error is Error;

Defined in: typescript

Indicates whether the argument provided is a built-in Error instance or not.

Parameters

Parameter	Type
`error`	`unknown`

Returns

error is Error

Inherited from

PlayError.isError

prepareStackTrace()

static prepareStackTrace(err, stackTraces): any;

Defined in: @types/node

Parameters

Parameter	Type
`err`	`Error`
`stackTraces`	`CallSite`[]

Returns

any

See

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Inherited from

PlayError.prepareStackTrace