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