/**
 * @license
 * Copyright Google Inc. 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/ngtsc/incremental/api" />
import * as ts from 'typescript';
import { AbsoluteFsPath } from '../file_system';
/**
 * Interface of the incremental build engine.
 *
 * `W` is a generic type representing a unit of work. This is generic to avoid a cyclic dependency
 * between the incremental engine API definition and its consumer(s).
 */
export interface IncrementalBuild<W> {
    /**
     * Retrieve the prior analysis work, if any, done for the given source file.
     */
    priorWorkFor(sf: ts.SourceFile): W[] | null;
}
/**
 * Tracks dependencies between source files or resources in the application.
 */
export interface DependencyTracker<T extends {
    fileName: string;
} = ts.SourceFile> {
    /**
     * Record that the file `from` depends on the file `on`.
     */
    addDependency(from: T, on: T): void;
    /**
     * Record that the file `from` depends on the resource file `on`.
     */
    addResourceDependency(from: T, on: AbsoluteFsPath): void;
    /**
     * Record that the file `from` depends on the file `on` as well as `on`'s direct dependencies.
     *
     * This operation is reified immediately, so if future dependencies are added to `on` they will
     * not automatically be added to `from`.
     */
    addTransitiveDependency(from: T, on: T): void;
    /**
     * Record that the file `from` depends on the resource dependencies of `resourcesOf`.
     *
     * This operation is reified immediately, so if future resource dependencies are added to
     * `resourcesOf` they will not automatically be added to `from`.
     */
    addTransitiveResources(from: T, resourcesOf: T): void;
}