gecko/storage/src/mozStorageAsyncStatementParams.cpp
2011-10-17 10:59:28 -04:00

158 lines
5.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Oracle Corporation code.
*
* The Initial Developer of the Original Code is
* Oracle Corporation
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir.vukicevic@oracle.com>
* Shawn Wilsher <me@shawnwilsher.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsMemory.h"
#include "nsString.h"
#include "nsCOMPtr.h"
#include "mozStoragePrivateHelpers.h"
#include "mozStorageAsyncStatement.h"
#include "mozStorageAsyncStatementParams.h"
#include "mozIStorageStatement.h"
namespace mozilla {
namespace storage {
////////////////////////////////////////////////////////////////////////////////
//// AsyncStatementParams
AsyncStatementParams::AsyncStatementParams(AsyncStatement *aStatement)
: mStatement(aStatement)
{
NS_ASSERTION(mStatement != nsnull, "mStatement is null");
}
NS_IMPL_ISUPPORTS2(
AsyncStatementParams
, mozIStorageStatementParams
, nsIXPCScriptable
)
////////////////////////////////////////////////////////////////////////////////
//// nsIXPCScriptable
#define XPC_MAP_CLASSNAME AsyncStatementParams
#define XPC_MAP_QUOTED_CLASSNAME "AsyncStatementParams"
#define XPC_MAP_WANT_SETPROPERTY
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
#include "xpc_map_end.h"
NS_IMETHODIMP
AsyncStatementParams::SetProperty(
nsIXPConnectWrappedNative *aWrapper,
JSContext *aCtx,
JSObject *aScopeObj,
jsid aId,
jsval *_vp,
bool *_retval
)
{
NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);
if (JSID_IS_INT(aId)) {
int idx = JSID_TO_INT(aId);
nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCtx, *_vp));
NS_ENSURE_TRUE(variant, NS_ERROR_UNEXPECTED);
nsresult rv = mStatement->BindByIndex(idx, variant);
NS_ENSURE_SUCCESS(rv, rv);
}
else if (JSID_IS_STRING(aId)) {
JSString *str = JSID_TO_STRING(aId);
size_t length;
const jschar *chars = JS_GetInternedStringCharsAndLength(str, &length);
NS_ConvertUTF16toUTF8 name(chars, length);
nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCtx, *_vp));
NS_ENSURE_TRUE(variant, NS_ERROR_UNEXPECTED);
nsresult rv = mStatement->BindByName(name, variant);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
return NS_ERROR_INVALID_ARG;
}
*_retval = true;
return NS_OK;
}
NS_IMETHODIMP
AsyncStatementParams::NewResolve(
nsIXPConnectWrappedNative *aWrapper,
JSContext *aCtx,
JSObject *aScopeObj,
jsid aId,
PRUint32 aFlags,
JSObject **_objp,
bool *_retval
)
{
NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);
// We do not throw at any point after this because we want to allow the
// prototype chain to be checked for the property.
bool resolved = false;
bool ok = true;
if (JSID_IS_INT(aId)) {
PRUint32 idx = JSID_TO_INT(aId);
// All indexes are good because we don't know how many parameters there
// really are.
ok = ::JS_DefineElement(aCtx, aScopeObj, idx, JSVAL_VOID, nsnull,
nsnull, 0);
resolved = true;
}
else if (JSID_IS_STRING(aId)) {
// We are unable to tell if there's a parameter with this name and so
// we must assume that there is. This screws the rest of the prototype
// chain, but people really shouldn't be depending on this anyways.
ok = ::JS_DefinePropertyById(aCtx, aScopeObj, aId, JSVAL_VOID, nsnull,
nsnull, 0);
resolved = true;
}
*_retval = ok;
*_objp = resolved && ok ? aScopeObj : nsnull;
return NS_OK;
}
} // namespace storage
} // namespace mozilla