37 lines
1.0 KiB
JavaScript
37 lines
1.0 KiB
JavaScript
import getPrototypeOf from "./getPrototypeOf";
|
|
import setPrototypeOf from "./setPrototypeOf";
|
|
import isNativeFunction from "./isNativeFunction";
|
|
import construct from "./construct";
|
|
export default function _wrapNativeSuper(Class) {
|
|
var _cache = typeof Map === "function" ? new Map() : undefined;
|
|
|
|
_wrapNativeSuper = function _wrapNativeSuper(Class) {
|
|
if (Class === null || !isNativeFunction(Class)) return Class;
|
|
|
|
if (typeof Class !== "function") {
|
|
throw new TypeError("Super expression must either be null or a function");
|
|
}
|
|
|
|
if (typeof _cache !== "undefined") {
|
|
if (_cache.has(Class)) return _cache.get(Class);
|
|
|
|
_cache.set(Class, Wrapper);
|
|
}
|
|
|
|
function Wrapper() {
|
|
return construct(Class, arguments, getPrototypeOf(this).constructor);
|
|
}
|
|
|
|
Wrapper.prototype = Object.create(Class.prototype, {
|
|
constructor: {
|
|
value: Wrapper,
|
|
enumerable: false,
|
|
writable: true,
|
|
configurable: true
|
|
}
|
|
});
|
|
return setPrototypeOf(Wrapper, Class);
|
|
};
|
|
|
|
return _wrapNativeSuper(Class);
|
|
} |