angular2/es6/dev/src/router/lifecycle/route_lifecycle_reflector.js

Angular 2 - a web framework for modern web apps

import { Type } from 'angular2/src/facade/lang';
import { CanActivate } from './lifecycle_annotations_impl';
import { reflector } from 'angular2/src/core/reflection/reflection';
export function hasLifecycleHook(e, type) {
    if (!(type instanceof Type))
        return false;
    return e.name in type.prototype;
}
export function getCanActivateHook(type) {
    var annotations = reflector.annotations(type);
    for (let i = 0; i < annotations.length; i += 1) {
        let annotation = annotations[i];
        if (annotation instanceof CanActivate) {
            return annotation.fn;
        }
    }
    return null;
}
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