53 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			53 lines
		
	
	
		
			1.2 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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| 
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| const Hook = require("./Hook");
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| const HookCodeFactory = require("./HookCodeFactory");
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| 
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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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| 
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| const factory = new SyncWaterfallHookCodeFactory();
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| 
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| class SyncWaterfallHook extends Hook {
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| 	constructor(args) {
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| 		super(args);
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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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| 	}
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| 
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| 	tapAsync() {
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| 		throw new Error("tapAsync is not supported on a SyncWaterfallHook");
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| 	}
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| 
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| 	tapPromise() {
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| 		throw new Error("tapPromise is not supported on a SyncWaterfallHook");
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| 	}
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| 
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| 	compile(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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| }
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| 
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| module.exports = SyncWaterfallHook;
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