The Tor Browser / file comparison
comparison: xpcom/base/nsIInterfaceRequestor.idl
xpcom/base/nsIInterfaceRequestor.idl
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:95f93d1fbd66 |
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| 1 /* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "nsISupports.idl" | |
| 8 | |
| 9 /** | |
| 10 * The nsIInterfaceRequestor interface defines a generic interface for | |
| 11 * requesting interfaces that a given object might provide access to. | |
| 12 * This is very similar to QueryInterface found in nsISupports. | |
| 13 * The main difference is that interfaces returned from GetInterface() | |
| 14 * are not required to provide a way back to the object implementing this | |
| 15 * interface. The semantics of QI() dictate that given an interface A that | |
| 16 * you QI() on to get to interface B, you must be able to QI on B to get back | |
| 17 * to A. This interface however allows you to obtain an interface C from A | |
| 18 * that may or most likely will not have the ability to get back to A. | |
| 19 */ | |
| 20 | |
| 21 [scriptable, uuid(033A1470-8B2A-11d3-AF88-00A024FFC08C)] | |
| 22 interface nsIInterfaceRequestor : nsISupports | |
| 23 { | |
| 24 /** | |
| 25 * Retrieves the specified interface pointer. | |
| 26 * | |
| 27 * @param uuid The IID of the interface being requested. | |
| 28 * @param result [out] The interface pointer to be filled in if | |
| 29 * the interface is accessible. | |
| 30 * @throws NS_NOINTERFACE - interface not accessible. | |
| 31 * @throws NS_ERROR* - method failure. | |
| 32 */ | |
| 33 void getInterface(in nsIIDRef uuid, | |
| 34 [iid_is(uuid),retval] out nsQIResult result); | |
| 35 }; | |
| 36 |
