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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef DOM_QUOTA_QMRESULT_H_
#define DOM_QUOTA_QMRESULT_H_
#include "ErrorList.h"
#include "mozilla/dom/quota/Config.h"
#include "mozilla/dom/quota/ForwardDecls.h"
namespace mozilla {
#ifdef QM_ERROR_STACKS_ENABLED
// A wrapped nsresult, primarily intended for use along with mozilla::Result
// and QM_TRY macros. The wrapper contains stack id and frame id which are
// reported in LogError besides the error result itself.
//
// XXX Document the general situation more, bug 1709777.
class QMResult {
uint64_t mStackId;
uint32_t mFrameId;
nsresult mNSResult;
public:
QMResult() : QMResult(NS_OK) {}
explicit QMResult(nsresult aNSResult);
uint64_t StackId() const { return mStackId; }
uint32_t FrameId() const { return mFrameId; }
nsresult NSResult() const { return mNSResult; }
/**
* Propagate the result.
*
* This is used by GenericErrorResult<QMResult> to create a propagated
* result.
*/
QMResult Propagate() const {
return QMResult{mStackId, mFrameId + 1, mNSResult};
}
private:
QMResult(uint64_t aStackId, uint32_t aFrameId, nsresult aNSResult)
: mStackId(aStackId), mFrameId(aFrameId), mNSResult(aNSResult) {}
};
#endif
inline QMResult ToQMResult(nsresult aValue) { return QMResult(aValue); }
} // namespace mozilla
#endif
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