gecko-dev/storage/mozStorageStatementJSHelper.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
* 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 MOZSTORAGESTATEMENTJSHELPER_H
#define MOZSTORAGESTATEMENTJSHELPER_H
#include "nsIXPCScriptable.h"
#include "nsIXPConnect.h"
class Statement;
namespace mozilla {
namespace storage {
class StatementJSHelper : public nsIXPCScriptable
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCSCRIPTABLE
private:
nsresult getRow(Statement *, JSContext *, JSObject *, JS::Value *);
nsresult getParams(Statement *, JSContext *, JSObject *, JS::Value *);
};
/**
* Wrappers used to clean up the references JS helpers hold to the statement.
* For cycle-avoidance reasons they do not hold reference-counted references,
* so it is important we do this.
*/
class StatementJSObjectHolder : public nsIXPConnectJSObjectHolder
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIXPCONNECTJSOBJECTHOLDER
explicit StatementJSObjectHolder(nsIXPConnectJSObjectHolder* aHolder);
protected:
virtual ~StatementJSObjectHolder() {};
nsCOMPtr<nsIXPConnectJSObjectHolder> mHolder;
};
class StatementParamsHolder final: public StatementJSObjectHolder {
public:
explicit StatementParamsHolder(nsIXPConnectJSObjectHolder* aHolder)
: StatementJSObjectHolder(aHolder) {
}
private:
virtual ~StatementParamsHolder();
};
class StatementRowHolder final: public StatementJSObjectHolder {
public:
explicit StatementRowHolder(nsIXPConnectJSObjectHolder* aHolder)
: StatementJSObjectHolder(aHolder) {
}
private:
virtual ~StatementRowHolder();
};
} // namespace storage
} // namespace mozilla
#endif // MOZSTORAGESTATEMENTJSHELPER_H