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50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __NSTARRAYHELPERS_H__
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#define __NSTARRAYHELPERS_H__
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template <class T>
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inline nsresult
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nsTArrayToJSArray(JSContext* aCx, const nsTArray<T>& aSourceArray,
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JSObject** aResultArray)
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{
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MOZ_ASSERT(aCx);
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JSAutoRequest ar(aCx);
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JSObject* arrayObj = JS_NewArrayObject(aCx, aSourceArray.Length(), nsnull);
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if (!arrayObj) {
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NS_WARNING("JS_NewArrayObject failed!");
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return NS_ERROR_OUT_OF_MEMORY;
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}
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JSObject* global = JS_GetGlobalForScopeChain(aCx);
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MOZ_ASSERT(global);
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for (PRUint32 index = 0; index < aSourceArray.Length(); index++) {
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nsCOMPtr<nsISupports> obj;
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nsresult rv = CallQueryInterface(aSourceArray[index], getter_AddRefs(obj));
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NS_ENSURE_SUCCESS(rv, rv);
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jsval wrappedVal;
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rv = nsContentUtils::WrapNative(aCx, global, obj, &wrappedVal, nsnull, true);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!JS_SetElement(aCx, arrayObj, index, &wrappedVal)) {
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NS_WARNING("JS_SetElement failed!");
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return NS_ERROR_FAILURE;
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}
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}
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if (!JS_FreezeObject(aCx, arrayObj)) {
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NS_WARNING("JS_FreezeObject failed!");
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return NS_ERROR_FAILURE;
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}
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*aResultArray = arrayObj;
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return NS_OK;
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}
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#endif /* __NSTARRAYHELPERS_H__ */
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