Module 439834

function(e,t,r){"use strict";var n=function(){function e(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}return function(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}}();r(562210);var i=r(652925),o=r(284009),a=r(540017),s=r(140526);e.exports=function(e){if("function"!=typeof e&&null!==e)throw TypeError("Super expression must either be null or a function, not "+typeof e);function t(e,r){if(!(this instanceof t))throw TypeError("Cannot call a class as a function");var n=function(e,t){if(!e)throw ReferenceError("this hasn't been initialised - super() hasn't been called");return t&&("object"==typeof t||"function"==typeof t)?t:e}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n._parent=e,n._interpolation=r,n._listeners={},n}return t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e),n(t,[{key:"__getValue",value:function(){var e=this._parent.__getValue();return o("number"==typeof e,"Cannot interpolate an input which is not a number."),this._interpolation(e)}},{key:"addListener",value:function(e){var t=this;this._parentListener||(this._parentListener=this._parent.addListener(function(){for(var e in t._listeners)t._listeners[e]({value:t.__getValue()})}));var r=s();return this._listeners[r]=e,r}},{key:"removeListener",value:function(e){delete this._listeners[e]}},{key:"interpolate",value:function(e){return new t(this,a.create(e))}},{key:"__attach",value:function(){this._parent.__addChild(this)}},{key:"__detach",value:function(){this._parent.__removeChild(this),this._parentListener=this._parent.removeListener(this._parentListener)}}]),t}(i)}