/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
import { URI } from "../../../base/common/uri.mjs";
import { IExtUri } from "../../../base/common/resources.mjs";
export declare const IUriIdentityService: import("../../instantiation/common/instantiation.mjs").ServiceIdentifier<IUriIdentityService>;
export interface IUriIdentityService {
    readonly _serviceBrand: undefined;
    /**
     * Uri extensions that are aware of casing.
     */
    readonly extUri: IExtUri;
    /**
     * Returns a canonical uri for the given resource. Different uris can point to the same
     * resource. That's because of casing or missing normalization, e.g the following uris
     * are different but refer to the same document (because windows paths are not case-sensitive)
     *
     * ```txt
     * file:///c:/foo/bar.txt
     * file:///c:/FOO/BAR.txt
     * ```
     *
     * This function should be invoked when feeding uris into the system that represent the truth,
     * e.g document uris or marker-to-document associations etc. This function should NOT be called
     * to pretty print a label nor to sanitize a uri.
     *
     * Samples:
     *
     * | in | out | |
     * |---|---|---|
     * | `file:///foo/bar/../bar` | `file:///foo/bar` | n/a |
     * | `file:///foo/bar/../bar#frag` | `file:///foo/bar#frag` | keep fragment |
     * | `file:///foo/BAR` | `file:///foo/bar` | assume ignore case |
     * | `file:///foo/bar/../BAR?q=2` | `file:///foo/BAR?q=2` | query makes it a different document |
     */
    asCanonicalUri(uri: URI): URI;
}