The Tor Browser / file comparison
comparison: js/xpconnect/public/nsTArrayHelpers.h
js/xpconnect/public/nsTArrayHelpers.h
- changeset 0
- 6474c204b198
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ | |
| 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 #ifndef __NSTARRAYHELPERS_H__ | |
| 8 #define __NSTARRAYHELPERS_H__ | |
| 9 | |
| 10 #include "jsapi.h" | |
| 11 #include "nsContentUtils.h" | |
| 12 #include "nsTArray.h" | |
| 13 | |
| 14 template <class T> | |
| 15 inline nsresult | |
| 16 nsTArrayToJSArray(JSContext* aCx, const nsTArray<T>& aSourceArray, | |
| 17 JSObject** aResultArray) | |
| 18 { | |
| 19 MOZ_ASSERT(aCx); | |
| 20 | |
| 21 JS::Rooted<JSObject*> arrayObj(aCx, | |
| 22 JS_NewArrayObject(aCx, aSourceArray.Length())); | |
| 23 if (!arrayObj) { | |
| 24 NS_WARNING("JS_NewArrayObject failed!"); | |
| 25 return NS_ERROR_OUT_OF_MEMORY; | |
| 26 } | |
| 27 | |
| 28 for (uint32_t index = 0; index < aSourceArray.Length(); index++) { | |
| 29 nsCOMPtr<nsISupports> obj; | |
| 30 nsresult rv = aSourceArray[index]->QueryInterface(NS_GET_IID(nsISupports), getter_AddRefs(obj)); | |
| 31 NS_ENSURE_SUCCESS(rv, rv); | |
| 32 | |
| 33 JS::RootedValue wrappedVal(aCx); | |
| 34 rv = nsContentUtils::WrapNative(aCx, obj, &wrappedVal); | |
| 35 NS_ENSURE_SUCCESS(rv, rv); | |
| 36 | |
| 37 if (!JS_SetElement(aCx, arrayObj, index, wrappedVal)) { | |
| 38 NS_WARNING("JS_SetElement failed!"); | |
| 39 return NS_ERROR_FAILURE; | |
| 40 } | |
| 41 } | |
| 42 | |
| 43 if (!JS_FreezeObject(aCx, arrayObj)) { | |
| 44 NS_WARNING("JS_FreezeObject failed!"); | |
| 45 return NS_ERROR_FAILURE; | |
| 46 } | |
| 47 | |
| 48 *aResultArray = arrayObj; | |
| 49 return NS_OK; | |
| 50 } | |
| 51 | |
| 52 template <> | |
| 53 inline nsresult | |
| 54 nsTArrayToJSArray<nsString>(JSContext* aCx, | |
| 55 const nsTArray<nsString>& aSourceArray, | |
| 56 JSObject** aResultArray) | |
| 57 { | |
| 58 MOZ_ASSERT(aCx); | |
| 59 | |
| 60 JS::Rooted<JSObject*> arrayObj(aCx, | |
| 61 JS_NewArrayObject(aCx, aSourceArray.Length())); | |
| 62 if (!arrayObj) { | |
| 63 NS_WARNING("JS_NewArrayObject failed!"); | |
| 64 return NS_ERROR_OUT_OF_MEMORY; | |
| 65 } | |
| 66 | |
| 67 JS::Rooted<JSString*> s(aCx); | |
| 68 for (uint32_t index = 0; index < aSourceArray.Length(); index++) { | |
| 69 s = JS_NewUCStringCopyN(aCx, aSourceArray[index].BeginReading(), | |
| 70 aSourceArray[index].Length()); | |
| 71 | |
| 72 if(!s) { | |
| 73 NS_WARNING("Memory allocation error!"); | |
| 74 return NS_ERROR_OUT_OF_MEMORY; | |
| 75 } | |
| 76 | |
| 77 if (!JS_SetElement(aCx, arrayObj, index, s)) { | |
| 78 NS_WARNING("JS_SetElement failed!"); | |
| 79 return NS_ERROR_FAILURE; | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 if (!JS_FreezeObject(aCx, arrayObj)) { | |
| 84 NS_WARNING("JS_FreezeObject failed!"); | |
| 85 return NS_ERROR_FAILURE; | |
| 86 } | |
| 87 | |
| 88 *aResultArray = arrayObj; | |
| 89 return NS_OK; | |
| 90 } | |
| 91 | |
| 92 #endif /* __NSTARRAYHELPERS_H__ */ |
