The Tor Browser / annotate

xpcom/ds/nsVariant.h@129ffea94266 (annotated)

xpcom/ds/nsVariant.h

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0 2 *
michael@0 3 * This Source Code Form is subject to the terms of the Mozilla Public
michael@0 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 6
michael@0 7 /* The long avoided variant support for xpcom. */
michael@0 8
michael@0 9 #ifndef nsVariant_h
michael@0 10 #define nsVariant_h
michael@0 11
michael@0 12 #include "nsIVariant.h"
michael@0 13 #include "nsStringFwd.h"
michael@0 14 #include "mozilla/Attributes.h"
michael@0 15
michael@0 16 class nsCycleCollectionTraversalCallback;
michael@0 17
michael@0 18 /**
michael@0 19 * Map the nsAUTF8String, nsUTF8String classes to the nsACString and
michael@0 20 * nsCString classes respectively for now. These defines need to be removed
michael@0 21 * once Jag lands his nsUTF8String implementation.
michael@0 22 */
michael@0 23 #define nsAUTF8String nsACString
michael@0 24 #define nsUTF8String nsCString
michael@0 25 #define PromiseFlatUTF8String PromiseFlatCString
michael@0 26
michael@0 27 /**
michael@0 28 * nsDiscriminatedUnion is a type that nsIVariant implementors *may* use
michael@0 29 * to hold underlying data. It has no methods. So, its use requires no linkage
michael@0 30 * to the xpcom module.
michael@0 31 */
michael@0 32
michael@0 33 struct nsDiscriminatedUnion
michael@0 34 {
michael@0 35 union {
michael@0 36 int8_t mInt8Value;
michael@0 37 int16_t mInt16Value;
michael@0 38 int32_t mInt32Value;
michael@0 39 int64_t mInt64Value;
michael@0 40 uint8_t mUint8Value;
michael@0 41 uint16_t mUint16Value;
michael@0 42 uint32_t mUint32Value;
michael@0 43 uint64_t mUint64Value;
michael@0 44 float mFloatValue;
michael@0 45 double mDoubleValue;
michael@0 46 bool mBoolValue;
michael@0 47 char mCharValue;
michael@0 48 char16_t mWCharValue;
michael@0 49 nsIID mIDValue;
michael@0 50 nsAString* mAStringValue;
michael@0 51 nsAUTF8String* mUTF8StringValue;
michael@0 52 nsACString* mCStringValue;
michael@0 53 struct {
michael@0 54 nsISupports* mInterfaceValue;
michael@0 55 nsIID mInterfaceID;
michael@0 56 } iface;
michael@0 57 struct {
michael@0 58 nsIID mArrayInterfaceID;
michael@0 59 void* mArrayValue;
michael@0 60 uint32_t mArrayCount;
michael@0 61 uint16_t mArrayType;
michael@0 62 } array;
michael@0 63 struct {
michael@0 64 char* mStringValue;
michael@0 65 uint32_t mStringLength;
michael@0 66 } str;
michael@0 67 struct {
michael@0 68 char16_t* mWStringValue;
michael@0 69 uint32_t mWStringLength;
michael@0 70 } wstr;
michael@0 71 } u;
michael@0 72 uint16_t mType;
michael@0 73 };
michael@0 74
michael@0 75 /**
michael@0 76 * nsVariant implements the generic variant support. The xpcom module registers
michael@0 77 * a factory (see NS_VARIANT_CONTRACTID in nsIVariant.idl) that will create
michael@0 78 * these objects. They are created 'empty' and 'writable'.
michael@0 79 *
michael@0 80 * nsIVariant users won't usually need to see this class.
michael@0 81 *
michael@0 82 * This class also has static helper methods that nsIVariant *implementors* can
michael@0 83 * use to help them do all the 'standard' nsIVariant data conversions.
michael@0 84 */
michael@0 85
michael@0 86 class nsVariant MOZ_FINAL : public nsIWritableVariant
michael@0 87 {
michael@0 88 public:
michael@0 89 NS_DECL_ISUPPORTS
michael@0 90 NS_DECL_NSIVARIANT
michael@0 91 NS_DECL_NSIWRITABLEVARIANT
michael@0 92
michael@0 93 nsVariant();
michael@0 94
michael@0 95 static nsresult Initialize(nsDiscriminatedUnion* data);
michael@0 96 static nsresult Cleanup(nsDiscriminatedUnion* data);
michael@0 97
michael@0 98 static nsresult ConvertToInt8(const nsDiscriminatedUnion& data, uint8_t *_retval);
michael@0 99 static nsresult ConvertToInt16(const nsDiscriminatedUnion& data, int16_t *_retval);
michael@0 100 static nsresult ConvertToInt32(const nsDiscriminatedUnion& data, int32_t *_retval);
michael@0 101 static nsresult ConvertToInt64(const nsDiscriminatedUnion& data, int64_t *_retval);
michael@0 102 static nsresult ConvertToUint8(const nsDiscriminatedUnion& data, uint8_t *_retval);
michael@0 103 static nsresult ConvertToUint16(const nsDiscriminatedUnion& data, uint16_t *_retval);
michael@0 104 static nsresult ConvertToUint32(const nsDiscriminatedUnion& data, uint32_t *_retval);
michael@0 105 static nsresult ConvertToUint64(const nsDiscriminatedUnion& data, uint64_t *_retval);
michael@0 106 static nsresult ConvertToFloat(const nsDiscriminatedUnion& data, float *_retval);
michael@0 107 static nsresult ConvertToDouble(const nsDiscriminatedUnion& data, double *_retval);
michael@0 108 static nsresult ConvertToBool(const nsDiscriminatedUnion& data, bool *_retval);
michael@0 109 static nsresult ConvertToChar(const nsDiscriminatedUnion& data, char *_retval);
michael@0 110 static nsresult ConvertToWChar(const nsDiscriminatedUnion& data, char16_t *_retval);
michael@0 111 static nsresult ConvertToID(const nsDiscriminatedUnion& data, nsID * _retval);
michael@0 112 static nsresult ConvertToAString(const nsDiscriminatedUnion& data, nsAString & _retval);
michael@0 113 static nsresult ConvertToAUTF8String(const nsDiscriminatedUnion& data, nsAUTF8String & _retval);
michael@0 114 static nsresult ConvertToACString(const nsDiscriminatedUnion& data, nsACString & _retval);
michael@0 115 static nsresult ConvertToString(const nsDiscriminatedUnion& data, char **_retval);
michael@0 116 static nsresult ConvertToWString(const nsDiscriminatedUnion& data, char16_t **_retval);
michael@0 117 static nsresult ConvertToISupports(const nsDiscriminatedUnion& data, nsISupports **_retval);
michael@0 118 static nsresult ConvertToInterface(const nsDiscriminatedUnion& data, nsIID * *iid, void * *iface);
michael@0 119 static nsresult ConvertToArray(const nsDiscriminatedUnion& data, uint16_t *type, nsIID* iid, uint32_t *count, void * *ptr);
michael@0 120 static nsresult ConvertToStringWithSize(const nsDiscriminatedUnion& data, uint32_t *size, char **str);
michael@0 121 static nsresult ConvertToWStringWithSize(const nsDiscriminatedUnion& data, uint32_t *size, char16_t **str);
michael@0 122
michael@0 123 static nsresult SetFromVariant(nsDiscriminatedUnion* data, nsIVariant* aValue);
michael@0 124
michael@0 125 static nsresult SetFromInt8(nsDiscriminatedUnion* data, uint8_t aValue);
michael@0 126 static nsresult SetFromInt16(nsDiscriminatedUnion* data, int16_t aValue);
michael@0 127 static nsresult SetFromInt32(nsDiscriminatedUnion* data, int32_t aValue);
michael@0 128 static nsresult SetFromInt64(nsDiscriminatedUnion* data, int64_t aValue);
michael@0 129 static nsresult SetFromUint8(nsDiscriminatedUnion* data, uint8_t aValue);
michael@0 130 static nsresult SetFromUint16(nsDiscriminatedUnion* data, uint16_t aValue);
michael@0 131 static nsresult SetFromUint32(nsDiscriminatedUnion* data, uint32_t aValue);
michael@0 132 static nsresult SetFromUint64(nsDiscriminatedUnion* data, uint64_t aValue);
michael@0 133 static nsresult SetFromFloat(nsDiscriminatedUnion* data, float aValue);
michael@0 134 static nsresult SetFromDouble(nsDiscriminatedUnion* data, double aValue);
michael@0 135 static nsresult SetFromBool(nsDiscriminatedUnion* data, bool aValue);
michael@0 136 static nsresult SetFromChar(nsDiscriminatedUnion* data, char aValue);
michael@0 137 static nsresult SetFromWChar(nsDiscriminatedUnion* data, char16_t aValue);
michael@0 138 static nsresult SetFromID(nsDiscriminatedUnion* data, const nsID & aValue);
michael@0 139 static nsresult SetFromAString(nsDiscriminatedUnion* data, const nsAString & aValue);
michael@0 140 static nsresult SetFromAUTF8String(nsDiscriminatedUnion* data, const nsAUTF8String & aValue);
michael@0 141 static nsresult SetFromACString(nsDiscriminatedUnion* data, const nsACString & aValue);
michael@0 142 static nsresult SetFromString(nsDiscriminatedUnion* data, const char *aValue);
michael@0 143 static nsresult SetFromWString(nsDiscriminatedUnion* data, const char16_t *aValue);
michael@0 144 static nsresult SetFromISupports(nsDiscriminatedUnion* data, nsISupports *aValue);
michael@0 145 static nsresult SetFromInterface(nsDiscriminatedUnion* data, const nsIID& iid, nsISupports *aValue);
michael@0 146 static nsresult SetFromArray(nsDiscriminatedUnion* data, uint16_t type, const nsIID* iid, uint32_t count, void * aValue);
michael@0 147 static nsresult SetFromStringWithSize(nsDiscriminatedUnion* data, uint32_t size, const char *aValue);
michael@0 148 static nsresult SetFromWStringWithSize(nsDiscriminatedUnion* data, uint32_t size, const char16_t *aValue);
michael@0 149
michael@0 150 static nsresult SetToVoid(nsDiscriminatedUnion* data);
michael@0 151 static nsresult SetToEmpty(nsDiscriminatedUnion* data);
michael@0 152 static nsresult SetToEmptyArray(nsDiscriminatedUnion* data);
michael@0 153
michael@0 154 static void Traverse(const nsDiscriminatedUnion& data,
michael@0 155 nsCycleCollectionTraversalCallback &cb);
michael@0 156
michael@0 157 private:
michael@0 158 ~nsVariant();
michael@0 159
michael@0 160 protected:
michael@0 161 nsDiscriminatedUnion mData;
michael@0 162 bool mWritable;
michael@0 163 };
michael@0 164
michael@0 165 /**
michael@0 166 * Users of nsIVariant should be using the contractID and not this CID.
michael@0 167 * - see NS_VARIANT_CONTRACTID in nsIVariant.idl.
michael@0 168 */
michael@0 169
michael@0 170 #define NS_VARIANT_CID \
michael@0 171 { /* 0D6EA1D0-879C-11d5-90EF-0010A4E73D9A */ \
michael@0 172 0xd6ea1d0, \
michael@0 173 0x879c, \
michael@0 174 0x11d5, \
michael@0 175 {0x90, 0xef, 0x0, 0x10, 0xa4, 0xe7, 0x3d, 0x9a}}
michael@0 176
michael@0 177 #endif // nsVariant_h

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