vue hello world项目
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const Hook = require("./Hook");
const HookCodeFactory = require("./HookCodeFactory");
class SyncWaterfallHookCodeFactory extends HookCodeFactory {
content({ onError, onResult, resultReturns, rethrowIfPossible }) {
return this.callTapsSeries({
onError: (i, err) => onError(err),
onResult: (i, result, next) => {
let code = "";
code += `if(${result} !== undefined) {\n`;
code += `${this._args[0]} = ${result};\n`;
code += `}\n`;
code += next();
return code;
},
onDone: () => onResult(this._args[0]),
doneReturns: resultReturns,
rethrowIfPossible
});
}
}
const factory = new SyncWaterfallHookCodeFactory();
const TAP_ASYNC = () => {
throw new Error("tapAsync is not supported on a SyncWaterfallHook");
};
const TAP_PROMISE = () => {
throw new Error("tapPromise is not supported on a SyncWaterfallHook");
};
const COMPILE = function(options) {
factory.setup(this, options);
return factory.create(options);
};
function SyncWaterfallHook(args = [], name = undefined) {
if (args.length < 1)
throw new Error("Waterfall hooks must have at least one argument");
const hook = new Hook(args, name);
hook.constructor = SyncWaterfallHook;
hook.tapAsync = TAP_ASYNC;
hook.tapPromise = TAP_PROMISE;
hook.compile = COMPILE;
return hook;
}
SyncWaterfallHook.prototype = null;
module.exports = SyncWaterfallHook;