storage-backport/src/mozStorageAsyncStatementParams.cpp
author Serge Gautherie <sgautherie.bz@free.fr>
Thu, 10 Mar 2011 11:11:09 +0100
branchCOMM193a4_20100510_RELBRANCH
changeset 7311 bd497d9287fde8367a5790d839ed99be3e37f7d3
parent 5128 b305fcdd06289f37e525aeadc8be6b602e2234c6
permissions -rw-r--r--
Bug 631902; Closing old branch that is no longer used. r=standard8.

/* -*- 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
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 * decision by deleting the provisions above and replace them with the notice
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 * the provisions above, a recipient may use your version of this file under
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#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,
  jsval aId,
  jsval *_vp,
  PRBool *_retval
)
{
  NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);

  if (JSVAL_IS_INT(aId)) {
    int idx = JSVAL_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 (JSVAL_IS_STRING(aId)) {
    JSString *str = JSVAL_TO_STRING(aId);
    NS_ConvertUTF16toUTF8 name(reinterpret_cast<const PRUnichar *>
                                   (::JS_GetStringChars(str)),
                               ::JS_GetStringLength(str));

    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 = PR_TRUE;
  return NS_OK;
}

NS_IMETHODIMP
AsyncStatementParams::NewResolve(
  nsIXPConnectWrappedNative *aWrapper,
  JSContext *aCtx,
  JSObject *aScopeObj,
  jsval aId,
  PRUint32 aFlags,
  JSObject **_objp,
  PRBool *_retval
)
{
  NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);
  // We do not throw at any point after this unless our index is out of range
  // because we want to allow the prototype chain to be checked for the
  // property.

  PRUint32 idx;

  if (JSVAL_IS_INT(aId)) {
    idx = JSVAL_TO_INT(aId);
    // All indexes are good because we don't know how many parameters there
    // really are.
  }
  else if (JSVAL_IS_STRING(aId)) {
    JSString *str = JSVAL_TO_STRING(aId);
    jschar *nameChars = ::JS_GetStringChars(str);
    size_t nameLength = ::JS_GetStringLength(str);

    // 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.
    *_retval = ::JS_DefineUCProperty(aCtx, aScopeObj, nameChars, nameLength,
                                     JSVAL_VOID, nsnull, nsnull, 0);
    NS_ENSURE_TRUE(*_retval, NS_OK);
  }
  else {
    // We do not handle other types.
    return NS_OK;
  }

  *_retval = ::JS_DefineElement(aCtx, aScopeObj, idx, JSVAL_VOID, nsnull,
                                nsnull, 0);
  if (*_retval)
    *_objp = aScopeObj;
  return NS_OK;
}

} // namespace storage
} // namespace mozilla