import { CONST_EXPR, assertionsEnabled } from 'angular2/src/facade/lang';
import { Provider } from 'angular2/src/core/di';
import { DOM } from 'angular2/src/platform/dom/dom_adapter';
import { getDebugNode } from 'angular2/src/core/debug/debug_node';
import { DomRootRenderer } from 'angular2/src/platform/dom/dom_renderer';
import { RootRenderer } from 'angular2/core';
import { DebugDomRootRenderer } from 'angular2/src/core/debug/debug_renderer';
const INSPECT_GLOBAL_NAME = 'ng.probe';
/**
 * Returns a {@link DebugElement} for the given native DOM element, or
 * null if the given native element does not have an Angular view associated
 * with it.
 */
export function inspectNativeElement(element) {
    return getDebugNode(element);
}
function _createConditionalRootRenderer(rootRenderer) {
    if (assertionsEnabled()) {
        return _createRootRenderer(rootRenderer);
    }
    return rootRenderer;
}
function _createRootRenderer(rootRenderer) {
    DOM.setGlobalVar(INSPECT_GLOBAL_NAME, inspectNativeElement);
    return new DebugDomRootRenderer(rootRenderer);
}
/**
 * Providers which support debugging Angular applications (e.g. via `ng.probe`).
 */
export const ELEMENT_PROBE_PROVIDERS = CONST_EXPR([
    new Provider(RootRenderer, { useFactory: _createConditionalRootRenderer, deps: [DomRootRenderer] })
]);
export const ELEMENT_PROBE_PROVIDERS_PROD_MODE = CONST_EXPR([new Provider(RootRenderer, { useFactory: _createRootRenderer, deps: [DomRootRenderer] })]);
