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import { getTypeSignature, getDefinedConstructorName } from '../utility';
import { hasMatchingErrorPrototype } from './utility';
// ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
/** @typedef {import('./typedef.js').AnyError} AnyError */
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is AnyError}
* whether the passed value matches any error type, hence it is
* an instance, either of the basic `Error` type, or of one of the
* built-in error-type subclasses (`SyntaxError`, `ReferenceError`, etc.),
* or of a custom error-type that extends the basic `Error` type.
* @category Error Type Detection
*/
export function isError(value) {
const signature = getTypeSignature(value);
return (
signature === '[object Error]' ||
(signature === '[object Object]' && hasMatchingErrorPrototype(value))
);
// return getTypeSignature(value) === '[object Error]';
// //
// // - the above commented approach does not cover
// // the error test-suite edge cases of ...
// // - `Object.create(Error.prototype)`
// // - and an ES3 style `LegacyError` like ...
// // ```
// // (() => {
// // function LegacyError() {}
// // LegacyError.prototype = Object.create(Error.prototype);
// // LegacyError.prototype.name = 'LegacyError';
// // return new LegacyError();
// // })(),
// // ```
}
/** @typedef {import('./typedef.js').PlainError} PlainError */
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is PlainError}
* whether the passed value matches exactly the built-in basic `Error` type.
* @category Error Type Detection
*/
export function isErrorError(value) {
return isError(value) && getDefinedConstructorName(value) === 'Error';
}
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is EvalError}
* whether the passed value matches exactly the built-in `EvalError` subtype.
* @category Error Type Detection
*/
export function isEvalError(value) {
return isError(value) && getDefinedConstructorName(value) === 'EvalError';
}
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is RangeError}
* whether the passed value matches exactly the built-in `RangeError` subtype.
* @category Error Type Detection
*/
export function isRangeError(value) {
return isError(value) && getDefinedConstructorName(value) === 'RangeError';
}
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is ReferenceError}
* whether the passed value matches exactly the built-in `ReferenceError` subtype.
* @category Error Type Detection
*/
export function isReferenceError(value) {
return isError(value) && getDefinedConstructorName(value) === 'ReferenceError';
}
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is SyntaxError}
* whether the passed value matches exactly the built-in `SyntaxError` subtype.
* @category Error Type Detection
*/
export function isSyntaxError(value) {
return isError(value) && getDefinedConstructorName(value) === 'SyntaxError';
}
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is TypeError}
* whether the passed value matches exactly the built-in `TypeError` subtype.
* @category Error Type Detection
*/
export function isTypeError(value) {
return isError(value) && getDefinedConstructorName(value) === 'TypeError';
}
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is URIError}
* whether the passed value matches exactly the built-in `URIError` subtype.
* @category Error Type Detection
*/
export function isURIError(value) {
return isError(value) && getDefinedConstructorName(value) === 'URIError';
}
/**
* @param {any} [value]
* An optionally passed value of any type.
* @returns {value is AggregateError}
* whether the passed value matches exactly the built-in `AggregateError` subtype.
* @category Error Type Detection
*/
export function isAggregateError(value) {
return isError(value) && getDefinedConstructorName(value) === 'AggregateError';
}
// ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
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