57 lines
1021 B
JavaScript
57 lines
1021 B
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
Author Tobias Koppers @sokra
|
||
|
|
*/
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
class HookMap {
|
||
|
|
constructor(factory) {
|
||
|
|
this._map = new Map();
|
||
|
|
this._factory = factory;
|
||
|
|
this._interceptors = [];
|
||
|
|
}
|
||
|
|
|
||
|
|
get(key) {
|
||
|
|
return this._map.get(key);
|
||
|
|
}
|
||
|
|
|
||
|
|
for(key) {
|
||
|
|
const hook = this.get(key);
|
||
|
|
if (hook !== undefined) {
|
||
|
|
return hook;
|
||
|
|
}
|
||
|
|
let newHook = this._factory(key);
|
||
|
|
const interceptors = this._interceptors;
|
||
|
|
for (let i = 0; i < interceptors.length; i++) {
|
||
|
|
newHook = interceptors[i].factory(key, newHook);
|
||
|
|
}
|
||
|
|
this._map.set(key, newHook);
|
||
|
|
return newHook;
|
||
|
|
}
|
||
|
|
|
||
|
|
intercept(interceptor) {
|
||
|
|
this._interceptors.push(
|
||
|
|
Object.assign(
|
||
|
|
{
|
||
|
|
factory: (key, hook) => hook
|
||
|
|
},
|
||
|
|
interceptor
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
tap(key, options, fn) {
|
||
|
|
return this.for(key).tap(options, fn);
|
||
|
|
}
|
||
|
|
|
||
|
|
tapAsync(key, options, fn) {
|
||
|
|
return this.for(key).tapAsync(options, fn);
|
||
|
|
}
|
||
|
|
|
||
|
|
tapPromise(key, options, fn) {
|
||
|
|
return this.for(key).tapPromise(options, fn);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = HookMap;
|