| /* | 
|     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 AsyncSeriesWaterfallHookCodeFactory extends HookCodeFactory { | 
|     content({ onError, onResult, onDone }) { | 
|         return this.callTapsSeries({ | 
|             onError: (i, err, next, doneBreak) => onError(err) + doneBreak(true), | 
|             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]) | 
|         }); | 
|     } | 
| } | 
|   | 
| const factory = new AsyncSeriesWaterfallHookCodeFactory(); | 
|   | 
| class AsyncSeriesWaterfallHook extends Hook { | 
|     constructor(args) { | 
|         super(args); | 
|         if (args.length < 1) | 
|             throw new Error("Waterfall hooks must have at least one argument"); | 
|     } | 
|   | 
|     compile(options) { | 
|         factory.setup(this, options); | 
|         return factory.create(options); | 
|     } | 
| } | 
|   | 
| Object.defineProperties(AsyncSeriesWaterfallHook.prototype, { | 
|     _call: { value: undefined, configurable: true, writable: true } | 
| }); | 
|   | 
| module.exports = AsyncSeriesWaterfallHook; |