ce4c83ff
 wxy
初始提交
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const util = require("util");
const SyncBailHook = require("./SyncBailHook");
function Tapable() {
this._pluginCompat = new SyncBailHook(["options"]);
this._pluginCompat.tap(
{
name: "Tapable camelCase",
stage: 100
},
options => {
options.names.add(
options.name.replace(/[- ]([a-z])/g, (str, ch) => ch.toUpperCase())
);
}
);
this._pluginCompat.tap(
{
name: "Tapable this.hooks",
stage: 200
},
options => {
let hook;
for (const name of options.names) {
hook = this.hooks[name];
if (hook !== undefined) {
break;
}
}
if (hook !== undefined) {
const tapOpt = {
name: options.fn.name || "unnamed compat plugin",
stage: options.stage || 0
};
if (options.async) hook.tapAsync(tapOpt, options.fn);
else hook.tap(tapOpt, options.fn);
return true;
}
}
);
}
module.exports = Tapable;
Tapable.addCompatLayer = function addCompatLayer(instance) {
Tapable.call(instance);
instance.plugin = Tapable.prototype.plugin;
instance.apply = Tapable.prototype.apply;
};
Tapable.prototype.plugin = util.deprecate(function plugin(name, fn) {
if (Array.isArray(name)) {
name.forEach(function(name) {
this.plugin(name, fn);
}, this);
return;
}
const result = this._pluginCompat.call({
name: name,
fn: fn,
names: new Set([name])
});
if (!result) {
throw new Error(
`Plugin could not be registered at '${name}'. Hook was not found.\n` +
"BREAKING CHANGE: There need to exist a hook at 'this.hooks'. " +
"To create a compatibility layer for this hook, hook into 'this._pluginCompat'."
);
}
}, "Tapable.plugin is deprecated. Use new API on `.hooks` instead");
Tapable.prototype.apply = util.deprecate(function apply() {
for (var i = 0; i < arguments.length; i++) {
arguments[i].apply(this);
}
}, "Tapable.apply is deprecated. Call apply on the plugin directly instead");
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