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43 lines
1.1 KiB
43 lines
1.1 KiB
2 years ago
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'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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