File size: 1,719 Bytes
342595c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | /*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const util = require("util");
const defaultFactory = (key, hook) => hook;
class HookMap {
constructor(factory, name = undefined) {
this._map = new Map();
this.name = name;
this._factory = factory;
this._interceptors = [];
}
get(key) {
return this._map.get(key);
}
for(key) {
// Hot path: inline the map lookup to skip the `this.get(key)`
// indirection. This gets hit on every hook access in consumers
// like webpack.
const map = this._map;
const hook = map.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);
}
map.set(key, newHook);
return newHook;
}
intercept(interceptor) {
this._interceptors.push(
Object.assign(
{
factory: defaultFactory
},
interceptor
)
);
}
}
HookMap.prototype.tap = util.deprecate(function tap(key, options, fn) {
return this.for(key).tap(options, fn);
}, "HookMap#tap(key,…) is deprecated. Use HookMap#for(key).tap(…) instead.");
HookMap.prototype.tapAsync = util.deprecate(function tapAsync(
key,
options,
fn
) {
return this.for(key).tapAsync(options, fn);
}, "HookMap#tapAsync(key,…) is deprecated. Use HookMap#for(key).tapAsync(…) instead.");
HookMap.prototype.tapPromise = util.deprecate(function tapPromise(
key,
options,
fn
) {
return this.for(key).tapPromise(options, fn);
}, "HookMap#tapPromise(key,…) is deprecated. Use HookMap#for(key).tapPromise(…) instead.");
module.exports = HookMap;
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