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42 lines
1.1 KiB
42 lines
1.1 KiB
'use strict'; |
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var aFrom = require('es5-ext/array/from') |
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, remove = require('es5-ext/array/#/remove') |
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, value = require('es5-ext/object/valid-object') |
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, d = require('d') |
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, emit = require('./').methods.emit |
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, defineProperty = Object.defineProperty |
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, hasOwnProperty = Object.prototype.hasOwnProperty |
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, getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; |
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module.exports = function (e1, e2/*, name*/) { |
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var pipes, pipe, desc, name; |
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(value(e1) && value(e2)); |
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name = arguments[2]; |
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if (name === undefined) name = 'emit'; |
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pipe = { |
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close: function () { remove.call(pipes, e2); } |
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}; |
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if (hasOwnProperty.call(e1, '__eePipes__')) { |
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(pipes = e1.__eePipes__).push(e2); |
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return pipe; |
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} |
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defineProperty(e1, '__eePipes__', d('c', pipes = [e2])); |
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desc = getOwnPropertyDescriptor(e1, name); |
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if (!desc) { |
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desc = d('c', undefined); |
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} else { |
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delete desc.get; |
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delete desc.set; |
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} |
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desc.value = function () { |
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var i, emitter, data = aFrom(pipes); |
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emit.apply(this, arguments); |
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for (i = 0; (emitter = data[i]); ++i) emit.apply(emitter, arguments); |
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}; |
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defineProperty(e1, name, desc); |
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return pipe; |
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};
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