/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/// <amd-module name="@angular/compiler-cli/src/transformers/metadata_reader" />
import { ModuleMetadata } from '../metadata';
export interface MetadataReaderHost {
    getSourceFileMetadata(filePath: string): ModuleMetadata | undefined;
    cacheMetadata?(fileName: string): boolean;
    fileExists(filePath: string): boolean;
    readFile(filePath: string): string;
}
export interface MetadataReaderCache {
}
export declare function createMetadataReaderCache(): MetadataReaderCache;
export declare function readMetadata(filePath: string, host: MetadataReaderHost, cache?: MetadataReaderCache): ModuleMetadata[] | undefined;