@antv/x6
Version:
JavaScript diagramming library that uses SVG and HTML for rendering
50 lines • 1.42 kB
JavaScript
const extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array &&
function (d, b) {
d.__proto__ = b; // eslint-disable-line no-proto
}) ||
function (d, b) {
// eslint-disable-next-line no-restricted-syntax
for (const p in b) {
if (Object.prototype.hasOwnProperty.call(b, p)) {
d[p] = b[p];
}
}
};
/**
* @see https://github.com/microsoft/TypeScript/blob/5c85febb0ce9d6088cbe9b09cb42f73f9ee8ea05/src/compiler/transformers/es2015.ts#L4309
*/
// eslint-disable-next-line
export function inherit(cls, base) {
extendStatics(cls, base);
function tmp() {
this.constructor = cls;
}
cls.prototype =
base === null
? Object.create(base)
: ((tmp.prototype = base.prototype), new tmp());
}
class A {
}
const isNativeClass = /^\s*class\s+/.test(`${A}`) || /^\s*class\s*\{/.test(`${class {
}}`);
/**
* Extends class with specified class name.
*/
export function createClass(className, base) {
let cls;
if (isNativeClass) {
cls = class extends base {
};
}
else {
cls = function () {
return base.apply(this, arguments); // eslint-disable-line
};
inherit(cls, base);
}
Object.defineProperty(cls, 'name', { value: className });
return cls;
}
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