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