serge-sans-paille
fac0f5e1a8
Differential Revision: https://phabricator.services.mozilla.com/D301767
32 lines
1007 B
C++
32 lines
1007 B
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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsArrayUtils_h_
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#define nsArrayUtils_h_
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#include "nsCOMPtr.h"
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#include "nsIArray.h"
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// helper class for do_QueryElementAt
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class MOZ_STACK_CLASS nsQueryArrayElementAt final : public nsCOMPtr_helper {
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public:
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nsQueryArrayElementAt(nsIArray* aArray, uint32_t aIndex, nsresult* aErrorPtr)
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: mArray(aArray), mIndex(aIndex), mErrorPtr(aErrorPtr) {}
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virtual nsresult NS_FASTCALL operator()(const nsIID& aIID,
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void**) const override;
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private:
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nsIArray* MOZ_NON_OWNING_REF mArray;
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uint32_t mIndex;
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nsresult* mErrorPtr;
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};
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inline const nsQueryArrayElementAt do_QueryElementAt(
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nsIArray* aArray, uint32_t aIndex, nsresult* aErrorPtr = nullptr) {
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return nsQueryArrayElementAt(aArray, aIndex, aErrorPtr);
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}
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#endif // nsArrayUtils_h_
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