angular2/es6/dev/src/core/linker/directive_lifecycle_reflector.js

Angular 2 - a web framework for modern web apps

import { Type } from 'angular2/src/facade/lang';
import { LifecycleHooks } from './interfaces';
export function hasLifecycleHook(lcInterface, token) {
    if (!(token instanceof Type))
        return false;
    var proto = token.prototype;
    switch (lcInterface) {
        case LifecycleHooks.AfterContentInit:
            return !!proto.afterContentInit;
        case LifecycleHooks.AfterContentChecked:
            return !!proto.afterContentChecked;
        case LifecycleHooks.AfterViewInit:
            return !!proto.afterViewInit;
        case LifecycleHooks.AfterViewChecked:
            return !!proto.afterViewChecked;
        case LifecycleHooks.OnChanges:
            return !!proto.onChanges;
        case LifecycleHooks.DoCheck:
            return !!proto.doCheck;
        case LifecycleHooks.OnDestroy:
            return !!proto.onDestroy;
        case LifecycleHooks.OnInit:
            return !!proto.onInit;
        default:
            return false;
    }
}
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