Sha256: e793966dfa8a67858ae7899b6a59a20902231e9282a8f704d19944d0575bc915
Contents?: true
Size: 1.05 KB
Versions: 243
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Stored size: 1.05 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $Function = GetIntrinsic('%Function%');
var $TypeError = GetIntrinsic('%TypeError%');
var $SyntaxError = GetIntrinsic('%SyntaxError%');
var Get = require('./Get');
var IsConstructor = require('./IsConstructor');
var Type = require('./Type');
// https://262.ecma-international.org/6.0/#sec-getprototypefromconstructor
module.exports = function GetPrototypeFromConstructor(constructor, intrinsicDefaultProto) {
var intrinsic = GetIntrinsic(intrinsicDefaultProto); // throws if not a valid intrinsic
if (Type(intrinsic) !== 'Object') {
throw new $TypeError('intrinsicDefaultProto must be an object');
}
if (!IsConstructor(constructor)) {
throw new $TypeError('Assertion failed: `constructor` must be a constructor');
}
var proto = Get(constructor, 'prototype');
if (Type(proto) !== 'Object') {
if (!(constructor instanceof $Function)) {
// ignore other realms, for now
throw new $SyntaxError('cross-realm constructors not currently supported');
}
proto = intrinsic;
}
return proto;
};
Version data entries
243 entries across 27 versions & 2 rubygems