2009-05-08 17:29:57 -07:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir.vukicevic@oracle.com>
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* Shawn Wilsher <me@shawnwilsher.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// Note: we are already in the namepace mozilla::storage
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2010-02-22 13:57:45 -08:00
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// Note 2: whoever #includes this file must provide implementations of
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// sqlite3_T_* prior.
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2009-05-08 17:29:57 -07:00
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////////////////////////////////////////////////////////////////////////////////
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//// variantToSQLiteT Implementation
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template <typename T>
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int
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variantToSQLiteT(T aObj,
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nsIVariant *aValue)
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{
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// Allow to return NULL not wrapped to nsIVariant for speed.
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if (!aValue)
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return sqlite3_T_null(aObj);
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PRUint16 type;
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(void)aValue->GetDataType(&type);
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switch (type) {
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case nsIDataType::VTYPE_INT8:
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case nsIDataType::VTYPE_INT16:
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case nsIDataType::VTYPE_INT32:
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case nsIDataType::VTYPE_UINT8:
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case nsIDataType::VTYPE_UINT16:
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{
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PRInt32 value;
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nsresult rv = aValue->GetAsInt32(&value);
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NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH);
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return sqlite3_T_int(aObj, value);
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}
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case nsIDataType::VTYPE_UINT32: // Try to preserve full range
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case nsIDataType::VTYPE_INT64:
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// Data loss possible, but there is no unsigned types in SQLite
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case nsIDataType::VTYPE_UINT64:
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{
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PRInt64 value;
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nsresult rv = aValue->GetAsInt64(&value);
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NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH);
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return sqlite3_T_int64(aObj, value);
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}
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case nsIDataType::VTYPE_FLOAT:
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case nsIDataType::VTYPE_DOUBLE:
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{
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double value;
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nsresult rv = aValue->GetAsDouble(&value);
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NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH);
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return sqlite3_T_double(aObj, value);
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}
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case nsIDataType::VTYPE_BOOL:
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{
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PRBool value;
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nsresult rv = aValue->GetAsBool(&value);
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NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH);
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return sqlite3_T_int(aObj, value ? 1 : 0);
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}
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case nsIDataType::VTYPE_CHAR:
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case nsIDataType::VTYPE_CHAR_STR:
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case nsIDataType::VTYPE_STRING_SIZE_IS:
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case nsIDataType::VTYPE_UTF8STRING:
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case nsIDataType::VTYPE_CSTRING:
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2010-02-22 13:57:45 -08:00
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{
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nsCAutoString value;
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// GetAsAUTF8String should never perform conversion when coming from
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// 8-bit string types, and thus can accept strings with arbitrary encoding
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// (including UTF8 and ASCII).
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nsresult rv = aValue->GetAsAUTF8String(value);
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NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH);
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return sqlite3_T_text(aObj, value);
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}
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case nsIDataType::VTYPE_WCHAR:
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case nsIDataType::VTYPE_DOMSTRING:
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case nsIDataType::VTYPE_WCHAR_STR:
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case nsIDataType::VTYPE_WSTRING_SIZE_IS:
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2009-05-08 17:29:57 -07:00
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case nsIDataType::VTYPE_ASTRING:
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{
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nsAutoString value;
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// GetAsAString does proper conversion to UCS2 from all string-like types.
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// It can be used universally without problems (unless someone implements
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// their own variant, but that's their problem).
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nsresult rv = aValue->GetAsAString(value);
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NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH);
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return sqlite3_T_text16(aObj, value);
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}
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case nsIDataType::VTYPE_VOID:
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case nsIDataType::VTYPE_EMPTY:
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2009-05-08 17:29:57 -07:00
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case nsIDataType::VTYPE_EMPTY_ARRAY:
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2009-05-08 17:29:57 -07:00
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return sqlite3_T_null(aObj);
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2009-05-08 17:29:57 -07:00
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case nsIDataType::VTYPE_ARRAY:
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{
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PRUint16 type;
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nsIID iid;
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PRUint32 count;
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void *data;
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nsresult rv = aValue->GetAsArray(&type, &iid, &count, &data);
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NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH);
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// Check to make sure it's a supported type.
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NS_ASSERTION(type == nsIDataType::VTYPE_UINT8,
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"Invalid type passed! You may leak!");
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if (type != nsIDataType::VTYPE_UINT8) {
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// Technically this could leak with certain data types, but somebody was
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// being stupid passing us this anyway.
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NS_Free(data);
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return SQLITE_MISMATCH;
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}
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// Finally do our thing. The function should free the array accordingly!
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int rc = sqlite3_T_blob(aObj, data, count);
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return rc;
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}
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2009-05-08 17:29:57 -07:00
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// Maybe, it'll be possible to convert these
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// in future too.
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case nsIDataType::VTYPE_ID:
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case nsIDataType::VTYPE_INTERFACE:
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case nsIDataType::VTYPE_INTERFACE_IS:
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default:
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return SQLITE_MISMATCH;
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}
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return SQLITE_OK;
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}
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