The Tor Browser / file comparison
comparison: storage/src/variantToSQLiteT_impl.h
storage/src/variantToSQLiteT_impl.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:ba7d00bb9744 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ : | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 // Note: we are already in the namepace mozilla::storage | |
| 8 | |
| 9 // Note 2: whoever #includes this file must provide implementations of | |
| 10 // sqlite3_T_* prior. | |
| 11 | |
| 12 //////////////////////////////////////////////////////////////////////////////// | |
| 13 //// variantToSQLiteT Implementation | |
| 14 | |
| 15 template <typename T> | |
| 16 int | |
| 17 variantToSQLiteT(T aObj, | |
| 18 nsIVariant *aValue) | |
| 19 { | |
| 20 // Allow to return nullptr not wrapped to nsIVariant for speed. | |
| 21 if (!aValue) | |
| 22 return sqlite3_T_null(aObj); | |
| 23 | |
| 24 uint16_t type; | |
| 25 (void)aValue->GetDataType(&type); | |
| 26 switch (type) { | |
| 27 case nsIDataType::VTYPE_INT8: | |
| 28 case nsIDataType::VTYPE_INT16: | |
| 29 case nsIDataType::VTYPE_INT32: | |
| 30 case nsIDataType::VTYPE_UINT8: | |
| 31 case nsIDataType::VTYPE_UINT16: | |
| 32 { | |
| 33 int32_t value; | |
| 34 nsresult rv = aValue->GetAsInt32(&value); | |
| 35 NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH); | |
| 36 return sqlite3_T_int(aObj, value); | |
| 37 } | |
| 38 case nsIDataType::VTYPE_UINT32: // Try to preserve full range | |
| 39 case nsIDataType::VTYPE_INT64: | |
| 40 // Data loss possible, but there is no unsigned types in SQLite | |
| 41 case nsIDataType::VTYPE_UINT64: | |
| 42 { | |
| 43 int64_t value; | |
| 44 nsresult rv = aValue->GetAsInt64(&value); | |
| 45 NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH); | |
| 46 return sqlite3_T_int64(aObj, value); | |
| 47 } | |
| 48 case nsIDataType::VTYPE_FLOAT: | |
| 49 case nsIDataType::VTYPE_DOUBLE: | |
| 50 { | |
| 51 double value; | |
| 52 nsresult rv = aValue->GetAsDouble(&value); | |
| 53 NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH); | |
| 54 return sqlite3_T_double(aObj, value); | |
| 55 } | |
| 56 case nsIDataType::VTYPE_BOOL: | |
| 57 { | |
| 58 bool value; | |
| 59 nsresult rv = aValue->GetAsBool(&value); | |
| 60 NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH); | |
| 61 return sqlite3_T_int(aObj, value ? 1 : 0); | |
| 62 } | |
| 63 case nsIDataType::VTYPE_CHAR: | |
| 64 case nsIDataType::VTYPE_CHAR_STR: | |
| 65 case nsIDataType::VTYPE_STRING_SIZE_IS: | |
| 66 case nsIDataType::VTYPE_UTF8STRING: | |
| 67 case nsIDataType::VTYPE_CSTRING: | |
| 68 { | |
| 69 nsAutoCString value; | |
| 70 // GetAsAUTF8String should never perform conversion when coming from | |
| 71 // 8-bit string types, and thus can accept strings with arbitrary encoding | |
| 72 // (including UTF8 and ASCII). | |
| 73 nsresult rv = aValue->GetAsAUTF8String(value); | |
| 74 NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH); | |
| 75 return sqlite3_T_text(aObj, value); | |
| 76 } | |
| 77 case nsIDataType::VTYPE_WCHAR: | |
| 78 case nsIDataType::VTYPE_DOMSTRING: | |
| 79 case nsIDataType::VTYPE_WCHAR_STR: | |
| 80 case nsIDataType::VTYPE_WSTRING_SIZE_IS: | |
| 81 case nsIDataType::VTYPE_ASTRING: | |
| 82 { | |
| 83 nsAutoString value; | |
| 84 // GetAsAString does proper conversion to UCS2 from all string-like types. | |
| 85 // It can be used universally without problems (unless someone implements | |
| 86 // their own variant, but that's their problem). | |
| 87 nsresult rv = aValue->GetAsAString(value); | |
| 88 NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH); | |
| 89 return sqlite3_T_text16(aObj, value); | |
| 90 } | |
| 91 case nsIDataType::VTYPE_VOID: | |
| 92 case nsIDataType::VTYPE_EMPTY: | |
| 93 case nsIDataType::VTYPE_EMPTY_ARRAY: | |
| 94 return sqlite3_T_null(aObj); | |
| 95 case nsIDataType::VTYPE_ARRAY: | |
| 96 { | |
| 97 uint16_t type; | |
| 98 nsIID iid; | |
| 99 uint32_t count; | |
| 100 void *data; | |
| 101 nsresult rv = aValue->GetAsArray(&type, &iid, &count, &data); | |
| 102 NS_ENSURE_SUCCESS(rv, SQLITE_MISMATCH); | |
| 103 | |
| 104 // Check to make sure it's a supported type. | |
| 105 NS_ASSERTION(type == nsIDataType::VTYPE_UINT8, | |
| 106 "Invalid type passed! You may leak!"); | |
| 107 if (type != nsIDataType::VTYPE_UINT8) { | |
| 108 // Technically this could leak with certain data types, but somebody was | |
| 109 // being stupid passing us this anyway. | |
| 110 NS_Free(data); | |
| 111 return SQLITE_MISMATCH; | |
| 112 } | |
| 113 | |
| 114 // Finally do our thing. The function should free the array accordingly! | |
| 115 int rc = sqlite3_T_blob(aObj, data, count); | |
| 116 return rc; | |
| 117 } | |
| 118 // Maybe, it'll be possible to convert these | |
| 119 // in future too. | |
| 120 case nsIDataType::VTYPE_ID: | |
| 121 case nsIDataType::VTYPE_INTERFACE: | |
| 122 case nsIDataType::VTYPE_INTERFACE_IS: | |
| 123 default: | |
| 124 return SQLITE_MISMATCH; | |
| 125 } | |
| 126 return SQLITE_OK; | |
| 127 } |
