vue hello world项目
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

39 lines
900 B

'use strict';
class Mixin {
constructor(host) {
const originalMethods = {};
const overriddenMethods = this._getOverriddenMethods(this, originalMethods);
for (const key of Object.keys(overriddenMethods)) {
if (typeof overriddenMethods[key] === 'function') {
originalMethods[key] = host[key];
host[key] = overriddenMethods[key];
}
}
}
_getOverriddenMethods() {
throw new Error('Not implemented');
}
}
Mixin.install = function(host, Ctor, opts) {
if (!host.__mixins) {
host.__mixins = [];
}
for (let i = 0; i < host.__mixins.length; i++) {
if (host.__mixins[i].constructor === Ctor) {
return host.__mixins[i];
}
}
const mixin = new Ctor(host, opts);
host.__mixins.push(mixin);
return mixin;
};
module.exports = Mixin;