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- //
- // JSONKit.m
- // http://github.com/johnezang/JSONKit
- // Dual licensed under either the terms of the BSD License, or alternatively
- // under the terms of the Apache License, Version 2.0, as specified below.
- //
- /*
- Copyright (c) 2011, John Engelhart
-
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- * Neither the name of the Zang Industries nor the names of its
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- /*
- Copyright 2011 John Engelhart
-
- Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- */
- /*
- Acknowledgments:
-
- The bulk of the UTF8 / UTF32 conversion and verification comes
- from ConvertUTF.[hc]. It has been modified from the original sources.
-
- The original sources were obtained from http://www.unicode.org/.
- However, the web site no longer seems to host the files. Instead,
- the Unicode FAQ http://www.unicode.org/faq//utf_bom.html#gen4
- points to International Components for Unicode (ICU)
- http://site.icu-project.org/ as an example of how to write a UTF
- converter.
-
- The decision to use the ConvertUTF.[ch] code was made to leverage
- "proven" code. Hopefully the local modifications are bug free.
-
- The code in isValidCodePoint() is derived from the ICU code in
- utf.h for the macros U_IS_UNICODE_NONCHAR and U_IS_UNICODE_CHAR.
-
- From the original ConvertUTF.[ch]:
-
- * Copyright 2001-2004 Unicode, Inc.
- *
- * Disclaimer
- *
- * This source code is provided as is by Unicode, Inc. No claims are
- * made as to fitness for any particular purpose. No warranties of any
- * kind are expressed or implied. The recipient agrees to determine
- * applicability of information provided. If this file has been
- * purchased on magnetic or optical media from Unicode, Inc., the
- * sole remedy for any claim will be exchange of defective media
- * within 90 days of receipt.
- *
- * Limitations on Rights to Redistribute This Code
- *
- * Unicode, Inc. hereby grants the right to freely use the information
- * supplied in this file in the creation of products supporting the
- * Unicode Standard, and to make copies of this file in any form
- * for internal or external distribution as long as this notice
- * remains attached.
-
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdint.h>
- #include <string.h>
- #include <assert.h>
- #include <sys/errno.h>
- #include <math.h>
- #include <limits.h>
- #include <objc/runtime.h>
- #import "JSONKit.h"
- //#include <CoreFoundation/CoreFoundation.h>
- #include <CoreFoundation/CFString.h>
- #include <CoreFoundation/CFArray.h>
- #include <CoreFoundation/CFDictionary.h>
- #include <CoreFoundation/CFNumber.h>
- //#import <Foundation/Foundation.h>
- #import <Foundation/NSArray.h>
- #import <Foundation/NSAutoreleasePool.h>
- #import <Foundation/NSData.h>
- #import <Foundation/NSDictionary.h>
- #import <Foundation/NSException.h>
- #import <Foundation/NSNull.h>
- #import <Foundation/NSObjCRuntime.h>
- #ifndef __has_feature
- #define __has_feature(x) 0
- #endif
- #ifdef JK_ENABLE_CF_TRANSFER_OWNERSHIP_CALLBACKS
- #warning As of JSONKit v1.4, JK_ENABLE_CF_TRANSFER_OWNERSHIP_CALLBACKS is no longer required. It is no longer a valid option.
- #endif
- #ifdef __OBJC_GC__
- #error JSONKit does not support Objective-C Garbage Collection
- #endif
- #if __has_feature(objc_arc)
- #error JSONKit does not support Objective-C Automatic Reference Counting (ARC)
- #endif
- // The following checks are really nothing more than sanity checks.
- // JSONKit technically has a few problems from a "strictly C99 conforming" standpoint, though they are of the pedantic nitpicking variety.
- // In practice, though, for the compilers and architectures we can reasonably expect this code to be compiled for, these pedantic nitpicks aren't really a problem.
- // Since we're limited as to what we can do with pre-processor #if checks, these checks are not nearly as through as they should be.
- #if (UINT_MAX != 0xffffffffU) || (INT_MIN != (-0x7fffffff-1)) || (ULLONG_MAX != 0xffffffffffffffffULL) || (LLONG_MIN != (-0x7fffffffffffffffLL-1LL))
- #error JSONKit requires the C 'int' and 'long long' types to be 32 and 64 bits respectively.
- #endif
- #if !defined(__LP64__) && ((UINT_MAX != ULONG_MAX) || (INT_MAX != LONG_MAX) || (INT_MIN != LONG_MIN) || (WORD_BIT != LONG_BIT))
- #error JSONKit requires the C 'int' and 'long' types to be the same on 32-bit architectures.
- #endif
- // Cocoa / Foundation uses NS*Integer as the type for a lot of arguments. We make sure that NS*Integer is something we are expecting and is reasonably compatible with size_t / ssize_t
- #if (NSUIntegerMax != ULONG_MAX) || (NSIntegerMax != LONG_MAX) || (NSIntegerMin != LONG_MIN)
- #error JSONKit requires NSInteger and NSUInteger to be the same size as the C 'long' type.
- #endif
- #if (NSUIntegerMax != SIZE_MAX) || (NSIntegerMax != SSIZE_MAX)
- #error JSONKit requires NSInteger and NSUInteger to be the same size as the C 'size_t' type.
- #endif
- // For DJB hash.
- #define JK_HASH_INIT (1402737925UL)
- // Use __builtin_clz() instead of trailingBytesForUTF8[] table lookup.
- #define JK_FAST_TRAILING_BYTES
- // JK_CACHE_SLOTS must be a power of 2. Default size is 1024 slots.
- #define JK_CACHE_SLOTS_BITS (10)
- #define JK_CACHE_SLOTS (1UL << JK_CACHE_SLOTS_BITS)
- // JK_CACHE_PROBES is the number of probe attempts.
- #define JK_CACHE_PROBES (4UL)
- // JK_INIT_CACHE_AGE must be < (1 << AGE) - 1, where AGE is sizeof(typeof(AGE)) * 8.
- #define JK_INIT_CACHE_AGE (0)
- // JK_TOKENBUFFER_SIZE is the default stack size for the temporary buffer used to hold "non-simple" strings (i.e., contains \ escapes)
- #define JK_TOKENBUFFER_SIZE (1024UL * 2UL)
- // JK_STACK_OBJS is the default number of spaces reserved on the stack for temporarily storing pointers to Obj-C objects before they can be transferred to a NSArray / NSDictionary.
- #define JK_STACK_OBJS (1024UL * 1UL)
- #define JK_JSONBUFFER_SIZE (1024UL * 4UL)
- #define JK_UTF8BUFFER_SIZE (1024UL * 16UL)
- #define JK_ENCODE_CACHE_SLOTS (1024UL)
- #if defined (__GNUC__) && (__GNUC__ >= 4)
- #define JK_ATTRIBUTES(attr, ...) __attribute__((attr, ##__VA_ARGS__))
- #define JK_EXPECTED(cond, expect) __builtin_expect((long)(cond), (expect))
- #define JK_EXPECT_T(cond) JK_EXPECTED(cond, 1U)
- #define JK_EXPECT_F(cond) JK_EXPECTED(cond, 0U)
- #define JK_PREFETCH(ptr) __builtin_prefetch(ptr)
- #else // defined (__GNUC__) && (__GNUC__ >= 4)
- #define JK_ATTRIBUTES(attr, ...)
- #define JK_EXPECTED(cond, expect) (cond)
- #define JK_EXPECT_T(cond) (cond)
- #define JK_EXPECT_F(cond) (cond)
- #define JK_PREFETCH(ptr)
- #endif // defined (__GNUC__) && (__GNUC__ >= 4)
- #define JK_STATIC_INLINE static __inline__ JK_ATTRIBUTES(always_inline)
- #define JK_ALIGNED(arg) JK_ATTRIBUTES(aligned(arg))
- #define JK_UNUSED_ARG JK_ATTRIBUTES(unused)
- #define JK_WARN_UNUSED JK_ATTRIBUTES(warn_unused_result)
- #define JK_WARN_UNUSED_CONST JK_ATTRIBUTES(warn_unused_result, const)
- #define JK_WARN_UNUSED_PURE JK_ATTRIBUTES(warn_unused_result, pure)
- #define JK_WARN_UNUSED_SENTINEL JK_ATTRIBUTES(warn_unused_result, sentinel)
- #define JK_NONNULL_ARGS(arg, ...) JK_ATTRIBUTES(nonnull(arg, ##__VA_ARGS__))
- #define JK_WARN_UNUSED_NONNULL_ARGS(arg, ...) JK_ATTRIBUTES(warn_unused_result, nonnull(arg, ##__VA_ARGS__))
- #define JK_WARN_UNUSED_CONST_NONNULL_ARGS(arg, ...) JK_ATTRIBUTES(warn_unused_result, const, nonnull(arg, ##__VA_ARGS__))
- #define JK_WARN_UNUSED_PURE_NONNULL_ARGS(arg, ...) JK_ATTRIBUTES(warn_unused_result, pure, nonnull(arg, ##__VA_ARGS__))
- #if defined (__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
- #define JK_ALLOC_SIZE_NON_NULL_ARGS_WARN_UNUSED(as, nn, ...) JK_ATTRIBUTES(warn_unused_result, nonnull(nn, ##__VA_ARGS__), alloc_size(as))
- #else // defined (__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
- #define JK_ALLOC_SIZE_NON_NULL_ARGS_WARN_UNUSED(as, nn, ...) JK_ATTRIBUTES(warn_unused_result, nonnull(nn, ##__VA_ARGS__))
- #endif // defined (__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
- @class JKArray, JKDictionaryEnumerator, JKDictionary;
- enum {
- JSONNumberStateStart = 0,
- JSONNumberStateFinished = 1,
- JSONNumberStateError = 2,
- JSONNumberStateWholeNumberStart = 3,
- JSONNumberStateWholeNumberMinus = 4,
- JSONNumberStateWholeNumberZero = 5,
- JSONNumberStateWholeNumber = 6,
- JSONNumberStatePeriod = 7,
- JSONNumberStateFractionalNumberStart = 8,
- JSONNumberStateFractionalNumber = 9,
- JSONNumberStateExponentStart = 10,
- JSONNumberStateExponentPlusMinus = 11,
- JSONNumberStateExponent = 12,
- };
- enum {
- JSONStringStateStart = 0,
- JSONStringStateParsing = 1,
- JSONStringStateFinished = 2,
- JSONStringStateError = 3,
- JSONStringStateEscape = 4,
- JSONStringStateEscapedUnicode1 = 5,
- JSONStringStateEscapedUnicode2 = 6,
- JSONStringStateEscapedUnicode3 = 7,
- JSONStringStateEscapedUnicode4 = 8,
- JSONStringStateEscapedUnicodeSurrogate1 = 9,
- JSONStringStateEscapedUnicodeSurrogate2 = 10,
- JSONStringStateEscapedUnicodeSurrogate3 = 11,
- JSONStringStateEscapedUnicodeSurrogate4 = 12,
- JSONStringStateEscapedNeedEscapeForSurrogate = 13,
- JSONStringStateEscapedNeedEscapedUForSurrogate = 14,
- };
- enum {
- JKParseAcceptValue = (1 << 0),
- JKParseAcceptComma = (1 << 1),
- JKParseAcceptEnd = (1 << 2),
- JKParseAcceptValueOrEnd = (JKParseAcceptValue | JKParseAcceptEnd),
- JKParseAcceptCommaOrEnd = (JKParseAcceptComma | JKParseAcceptEnd),
- };
- enum {
- JKClassUnknown = 0,
- JKClassString = 1,
- JKClassNumber = 2,
- JKClassArray = 3,
- JKClassDictionary = 4,
- JKClassNull = 5,
- };
- enum {
- JKManagedBufferOnStack = 1,
- JKManagedBufferOnHeap = 2,
- JKManagedBufferLocationMask = (0x3),
- JKManagedBufferLocationShift = (0),
-
- JKManagedBufferMustFree = (1 << 2),
- };
- typedef JKFlags JKManagedBufferFlags;
- enum {
- JKObjectStackOnStack = 1,
- JKObjectStackOnHeap = 2,
- JKObjectStackLocationMask = (0x3),
- JKObjectStackLocationShift = (0),
-
- JKObjectStackMustFree = (1 << 2),
- };
- typedef JKFlags JKObjectStackFlags;
- enum {
- JKTokenTypeInvalid = 0,
- JKTokenTypeNumber = 1,
- JKTokenTypeString = 2,
- JKTokenTypeObjectBegin = 3,
- JKTokenTypeObjectEnd = 4,
- JKTokenTypeArrayBegin = 5,
- JKTokenTypeArrayEnd = 6,
- JKTokenTypeSeparator = 7,
- JKTokenTypeComma = 8,
- JKTokenTypeTrue = 9,
- JKTokenTypeFalse = 10,
- JKTokenTypeNull = 11,
- JKTokenTypeWhiteSpace = 12,
- };
- typedef NSUInteger JKTokenType;
- // These are prime numbers to assist with hash slot probing.
- enum {
- JKValueTypeNone = 0,
- JKValueTypeString = 5,
- JKValueTypeLongLong = 7,
- JKValueTypeUnsignedLongLong = 11,
- JKValueTypeDouble = 13,
- };
- typedef NSUInteger JKValueType;
- enum {
- JKEncodeOptionAsData = 1,
- JKEncodeOptionAsString = 2,
- JKEncodeOptionAsTypeMask = 0x7,
- JKEncodeOptionCollectionObj = (1 << 3),
- JKEncodeOptionStringObj = (1 << 4),
- JKEncodeOptionStringObjTrimQuotes = (1 << 5),
-
- };
- typedef NSUInteger JKEncodeOptionType;
- typedef NSUInteger JKHash;
- typedef struct JKTokenCacheItem JKTokenCacheItem;
- typedef struct JKTokenCache JKTokenCache;
- typedef struct JKTokenValue JKTokenValue;
- typedef struct JKParseToken JKParseToken;
- typedef struct JKPtrRange JKPtrRange;
- typedef struct JKObjectStack JKObjectStack;
- typedef struct JKBuffer JKBuffer;
- typedef struct JKConstBuffer JKConstBuffer;
- typedef struct JKConstPtrRange JKConstPtrRange;
- typedef struct JKRange JKRange;
- typedef struct JKManagedBuffer JKManagedBuffer;
- typedef struct JKFastClassLookup JKFastClassLookup;
- typedef struct JKEncodeCache JKEncodeCache;
- typedef struct JKEncodeState JKEncodeState;
- typedef struct JKObjCImpCache JKObjCImpCache;
- typedef struct JKHashTableEntry JKHashTableEntry;
- typedef id (*NSNumberAllocImp)(id receiver, SEL selector);
- typedef id (*NSNumberInitWithUnsignedLongLongImp)(id receiver, SEL selector, unsigned long long value);
- typedef id (*JKClassFormatterIMP)(id receiver, SEL selector, id object);
- #ifdef __BLOCKS__
- typedef id (^JKClassFormatterBlock)(id formatObject);
- #endif
- struct JKPtrRange {
- unsigned char *ptr;
- size_t length;
- };
- struct JKConstPtrRange {
- const unsigned char *ptr;
- size_t length;
- };
- struct JKRange {
- size_t location, length;
- };
- struct JKManagedBuffer {
- JKPtrRange bytes;
- JKManagedBufferFlags flags;
- size_t roundSizeUpToMultipleOf;
- };
- struct JKObjectStack {
- void **objects, **keys;
- CFHashCode *cfHashes;
- size_t count, index, roundSizeUpToMultipleOf;
- JKObjectStackFlags flags;
- };
- struct JKBuffer {
- JKPtrRange bytes;
- };
- struct JKConstBuffer {
- JKConstPtrRange bytes;
- };
- struct JKTokenValue {
- JKConstPtrRange ptrRange;
- JKValueType type;
- JKHash hash;
- union {
- long long longLongValue;
- unsigned long long unsignedLongLongValue;
- double doubleValue;
- } number;
- JKTokenCacheItem *cacheItem;
- };
- struct JKParseToken {
- JKConstPtrRange tokenPtrRange;
- JKTokenType type;
- JKTokenValue value;
- JKManagedBuffer tokenBuffer;
- };
- struct JKTokenCacheItem {
- void *object;
- JKHash hash;
- CFHashCode cfHash;
- size_t size;
- unsigned char *bytes;
- JKValueType type;
- };
- struct JKTokenCache {
- JKTokenCacheItem *items;
- size_t count;
- unsigned int prng_lfsr;
- unsigned char age[JK_CACHE_SLOTS];
- };
- struct JKObjCImpCache {
- Class NSNumberClass;
- NSNumberAllocImp NSNumberAlloc;
- NSNumberInitWithUnsignedLongLongImp NSNumberInitWithUnsignedLongLong;
- };
- struct JKParseState {
- JKParseOptionFlags parseOptionFlags;
- JKConstBuffer stringBuffer;
- size_t atIndex, lineNumber, lineStartIndex;
- size_t prev_atIndex, prev_lineNumber, prev_lineStartIndex;
- JKParseToken token;
- JKObjectStack objectStack;
- JKTokenCache cache;
- JKObjCImpCache objCImpCache;
- NSError *error;
- int errorIsPrev;
- BOOL mutableCollections;
- };
- struct JKFastClassLookup {
- void *stringClass;
- void *numberClass;
- void *arrayClass;
- void *dictionaryClass;
- void *nullClass;
- };
- struct JKEncodeCache {
- id object;
- size_t offset;
- size_t length;
- };
- struct JKEncodeState {
- JKManagedBuffer utf8ConversionBuffer;
- JKManagedBuffer stringBuffer;
- size_t atIndex;
- JKFastClassLookup fastClassLookup;
- JKEncodeCache cache[JK_ENCODE_CACHE_SLOTS];
- JKSerializeOptionFlags serializeOptionFlags;
- JKEncodeOptionType encodeOption;
- size_t depth;
- NSError *error;
- id classFormatterDelegate;
- SEL classFormatterSelector;
- JKClassFormatterIMP classFormatterIMP;
- #ifdef __BLOCKS__
- JKClassFormatterBlock classFormatterBlock;
- #endif
- };
- // This is a JSONKit private class.
- @interface JKSerializer : NSObject {
- JKEncodeState *encodeState;
- }
- #ifdef __BLOCKS__
- #define JKSERIALIZER_BLOCKS_PROTO id(^)(id object)
- #else
- #define JKSERIALIZER_BLOCKS_PROTO id
- #endif
- + (id)serializeObject:(id)object options:(JKSerializeOptionFlags)optionFlags encodeOption:(JKEncodeOptionType)encodeOption block:(JKSERIALIZER_BLOCKS_PROTO)block delegate:(id)delegate selector:(SEL)selector error:(NSError **)error;
- - (id)serializeObject:(id)object options:(JKSerializeOptionFlags)optionFlags encodeOption:(JKEncodeOptionType)encodeOption block:(JKSERIALIZER_BLOCKS_PROTO)block delegate:(id)delegate selector:(SEL)selector error:(NSError **)error;
- - (void)releaseState;
- @end
- struct JKHashTableEntry {
- NSUInteger keyHash;
- id key, object;
- };
- typedef uint32_t UTF32; /* at least 32 bits */
- typedef uint16_t UTF16; /* at least 16 bits */
- typedef uint8_t UTF8; /* typically 8 bits */
- typedef enum {
- conversionOK, /* conversion successful */
- sourceExhausted, /* partial character in source, but hit end */
- targetExhausted, /* insuff. room in target for conversion */
- sourceIllegal /* source sequence is illegal/malformed */
- } ConversionResult;
- #define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD
- #define UNI_MAX_BMP (UTF32)0x0000FFFF
- #define UNI_MAX_UTF16 (UTF32)0x0010FFFF
- #define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF
- #define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF
- #define UNI_SUR_HIGH_START (UTF32)0xD800
- #define UNI_SUR_HIGH_END (UTF32)0xDBFF
- #define UNI_SUR_LOW_START (UTF32)0xDC00
- #define UNI_SUR_LOW_END (UTF32)0xDFFF
- #if !defined(JK_FAST_TRAILING_BYTES)
- static const char trailingBytesForUTF8[256] = {
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5
- };
- #endif
- static const UTF32 offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL, 0x03C82080UL, 0xFA082080UL, 0x82082080UL };
- static const UTF8 firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
- #define JK_AT_STRING_PTR(x) (&((x)->stringBuffer.bytes.ptr[(x)->atIndex]))
- #define JK_END_STRING_PTR(x) (&((x)->stringBuffer.bytes.ptr[(x)->stringBuffer.bytes.length]))
- static JKArray *_JKArrayCreate(id *objects, NSUInteger count, BOOL mutableCollection);
- static void _JKArrayInsertObjectAtIndex(JKArray *array, id newObject, NSUInteger objectIndex);
- static void _JKArrayReplaceObjectAtIndexWithObject(JKArray *array, NSUInteger objectIndex, id newObject);
- static void _JKArrayRemoveObjectAtIndex(JKArray *array, NSUInteger objectIndex);
- static NSUInteger _JKDictionaryCapacityForCount(NSUInteger count);
- static JKDictionary *_JKDictionaryCreate(id *keys, NSUInteger *keyHashes, id *objects, NSUInteger count, BOOL mutableCollection);
- static JKHashTableEntry *_JKDictionaryHashEntry(JKDictionary *dictionary);
- static NSUInteger _JKDictionaryCapacity(JKDictionary *dictionary);
- static void _JKDictionaryResizeIfNeccessary(JKDictionary *dictionary);
- static void _JKDictionaryRemoveObjectWithEntry(JKDictionary *dictionary, JKHashTableEntry *entry);
- static void _JKDictionaryAddObject(JKDictionary *dictionary, NSUInteger keyHash, id key, id object);
- static JKHashTableEntry *_JKDictionaryHashTableEntryForKey(JKDictionary *dictionary, id aKey);
- static void _JSONDecoderCleanup(JSONDecoder *decoder);
- static id _NSStringObjectFromJSONString(NSString *jsonString, JKParseOptionFlags parseOptionFlags, NSError **error, BOOL mutableCollection);
- static void jk_managedBuffer_release(JKManagedBuffer *managedBuffer);
- static void jk_managedBuffer_setToStackBuffer(JKManagedBuffer *managedBuffer, unsigned char *ptr, size_t length);
- static unsigned char *jk_managedBuffer_resize(JKManagedBuffer *managedBuffer, size_t newSize);
- static void jk_objectStack_release(JKObjectStack *objectStack);
- static void jk_objectStack_setToStackBuffer(JKObjectStack *objectStack, void **objects, void **keys, CFHashCode *cfHashes, size_t count);
- static int jk_objectStack_resize(JKObjectStack *objectStack, size_t newCount);
- static void jk_error(JKParseState *parseState, NSString *format, ...);
- static int jk_parse_string(JKParseState *parseState);
- static int jk_parse_number(JKParseState *parseState);
- static size_t jk_parse_is_newline(JKParseState *parseState, const unsigned char *atCharacterPtr);
- JK_STATIC_INLINE int jk_parse_skip_newline(JKParseState *parseState);
- JK_STATIC_INLINE void jk_parse_skip_whitespace(JKParseState *parseState);
- static int jk_parse_next_token(JKParseState *parseState);
- static void jk_error_parse_accept_or3(JKParseState *parseState, int state, NSString *or1String, NSString *or2String, NSString *or3String);
- static void *jk_create_dictionary(JKParseState *parseState, size_t startingObjectIndex);
- static void *jk_parse_dictionary(JKParseState *parseState);
- static void *jk_parse_array(JKParseState *parseState);
- static void *jk_object_for_token(JKParseState *parseState);
- static void *jk_cachedObjects(JKParseState *parseState);
- JK_STATIC_INLINE void jk_cache_age(JKParseState *parseState);
- JK_STATIC_INLINE void jk_set_parsed_token(JKParseState *parseState, const unsigned char *ptr, size_t length, JKTokenType type, size_t advanceBy);
- static void jk_encode_error(JKEncodeState *encodeState, NSString *format, ...);
- static int jk_encode_printf(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object, const char *format, ...);
- static int jk_encode_write(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object, const char *format);
- static int jk_encode_writePrettyPrintWhiteSpace(JKEncodeState *encodeState);
- static int jk_encode_write1slow(JKEncodeState *encodeState, ssize_t depthChange, const char *format);
- static int jk_encode_write1fast(JKEncodeState *encodeState, ssize_t depthChange JK_UNUSED_ARG, const char *format);
- static int jk_encode_writen(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object, const char *format, size_t length);
- JK_STATIC_INLINE JKHash jk_encode_object_hash(void *objectPtr);
- JK_STATIC_INLINE void jk_encode_updateCache(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object);
- static int jk_encode_add_atom_to_buffer(JKEncodeState *encodeState, void *objectPtr);
- #define jk_encode_write1(es, dc, f) (JK_EXPECT_F(_jk_encode_prettyPrint) ? jk_encode_write1slow(es, dc, f) : jk_encode_write1fast(es, dc, f))
- JK_STATIC_INLINE size_t jk_min(size_t a, size_t b);
- JK_STATIC_INLINE size_t jk_max(size_t a, size_t b);
- JK_STATIC_INLINE JKHash jk_calculateHash(JKHash currentHash, unsigned char c);
- // JSONKit v1.4 used both a JKArray : NSArray and JKMutableArray : NSMutableArray, and the same for the dictionary collection type.
- // However, Louis Gerbarg (via cocoa-dev) pointed out that Cocoa / Core Foundation actually implements only a single class that inherits from the
- // mutable version, and keeps an ivar bit for whether or not that instance is mutable. This means that the immutable versions of the collection
- // classes receive the mutating methods, but this is handled by having those methods throw an exception when the ivar bit is set to immutable.
- // We adopt the same strategy here. It's both cleaner and gets rid of the method swizzling hackery used in JSONKit v1.4.
- // This is a workaround for issue #23 https://github.com/johnezang/JSONKit/pull/23
- // Basically, there seem to be a problem with using +load in static libraries on iOS. However, __attribute__ ((constructor)) does work correctly.
- // Since we do not require anything "special" that +load provides, and we can accomplish the same thing using __attribute__ ((constructor)), the +load logic was moved here.
- static Class _JKArrayClass = NULL;
- static size_t _JKArrayInstanceSize = 0UL;
- static Class _JKDictionaryClass = NULL;
- static size_t _JKDictionaryInstanceSize = 0UL;
- // For JSONDecoder...
- static Class _jk_NSNumberClass = NULL;
- static NSNumberAllocImp _jk_NSNumberAllocImp = NULL;
- static NSNumberInitWithUnsignedLongLongImp _jk_NSNumberInitWithUnsignedLongLongImp = NULL;
- extern void jk_collectionClassLoadTimeInitialization(void) __attribute__ ((constructor));
- void jk_collectionClassLoadTimeInitialization(void) {
- NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // Though technically not required, the run time environment at load time initialization may be less than ideal.
-
- _JKArrayClass = objc_getClass("JKArray");
- _JKArrayInstanceSize = jk_max(16UL, class_getInstanceSize(_JKArrayClass));
-
- _JKDictionaryClass = objc_getClass("JKDictionary");
- _JKDictionaryInstanceSize = jk_max(16UL, class_getInstanceSize(_JKDictionaryClass));
-
- // For JSONDecoder...
- _jk_NSNumberClass = [NSNumber class];
- _jk_NSNumberAllocImp = (NSNumberAllocImp)[NSNumber methodForSelector:@selector(alloc)];
-
- // Hacktacular. Need to do it this way due to the nature of class clusters.
- id temp_NSNumber = [NSNumber alloc];
- _jk_NSNumberInitWithUnsignedLongLongImp = (NSNumberInitWithUnsignedLongLongImp)[temp_NSNumber methodForSelector:@selector(initWithUnsignedLongLong:)];
- [[temp_NSNumber init] release];
- temp_NSNumber = NULL;
-
- [pool release]; pool = NULL;
- }
- #pragma mark -
- @interface JKArray : NSMutableArray <NSCopying, NSMutableCopying, NSFastEnumeration> {
- id *objects;
- NSUInteger count, capacity, mutations;
- }
- @end
- @implementation JKArray
- + (id)allocWithZone:(NSZone *)zone
- {
- #pragma unused(zone)
- [NSException raise:NSInvalidArgumentException format:@"*** - [%@ %@]: The %@ class is private to JSONKit and should not be used in this fashion.", NSStringFromClass([self class]), NSStringFromSelector(_cmd), NSStringFromClass([self class])];
- return(NULL);
- }
- static JKArray *_JKArrayCreate(id *objects, NSUInteger count, BOOL mutableCollection) {
- NSCParameterAssert((objects != NULL) && (_JKArrayClass != NULL) && (_JKArrayInstanceSize > 0UL));
- JKArray *array = NULL;
- if(JK_EXPECT_T((array = (JKArray *)calloc(1UL, _JKArrayInstanceSize)) != NULL)) { // Directly allocate the JKArray instance via calloc.
- // array->isa = _JKArrayClass;
- object_setClass(array, _JKArrayClass);
- if((array = [array init]) == NULL) { return(NULL); }
- array->capacity = count;
- array->count = count;
- if(JK_EXPECT_F((array->objects = (id *)malloc(sizeof(id) * array->capacity)) == NULL)) { [array autorelease]; return(NULL); }
- memcpy(array->objects, objects, array->capacity * sizeof(id));
- array->mutations = (mutableCollection == NO) ? 0UL : 1UL;
- }
- return(array);
- }
- // Note: The caller is responsible for -retaining the object that is to be added.
- static void _JKArrayInsertObjectAtIndex(JKArray *array, id newObject, NSUInteger objectIndex) {
- NSCParameterAssert((array != NULL) && (array->objects != NULL) && (array->count <= array->capacity) && (objectIndex <= array->count) && (newObject != NULL));
- if(!((array != NULL) && (array->objects != NULL) && (objectIndex <= array->count) && (newObject != NULL))) { [newObject autorelease]; return; }
- if((array->count + 1UL) >= array->capacity) {
- id *newObjects = NULL;
- if((newObjects = (id *)realloc(array->objects, sizeof(id) * (array->capacity + 16UL))) == NULL) { [NSException raise:NSMallocException format:@"Unable to resize objects array."]; }
- array->objects = newObjects;
- array->capacity += 16UL;
- memset(&array->objects[array->count], 0, sizeof(id) * (array->capacity - array->count));
- }
- array->count++;
- if((objectIndex + 1UL) < array->count) { memmove(&array->objects[objectIndex + 1UL], &array->objects[objectIndex], sizeof(id) * ((array->count - 1UL) - objectIndex)); array->objects[objectIndex] = NULL; }
- array->objects[objectIndex] = newObject;
- }
- // Note: The caller is responsible for -retaining the object that is to be added.
- static void _JKArrayReplaceObjectAtIndexWithObject(JKArray *array, NSUInteger objectIndex, id newObject) {
- NSCParameterAssert((array != NULL) && (array->objects != NULL) && (array->count <= array->capacity) && (objectIndex < array->count) && (array->objects[objectIndex] != NULL) && (newObject != NULL));
- if(!((array != NULL) && (array->objects != NULL) && (objectIndex < array->count) && (array->objects[objectIndex] != NULL) && (newObject != NULL))) { [newObject autorelease]; return; }
- CFRelease(array->objects[objectIndex]);
- array->objects[objectIndex] = NULL;
- array->objects[objectIndex] = newObject;
- }
- static void _JKArrayRemoveObjectAtIndex(JKArray *array, NSUInteger objectIndex) {
- NSCParameterAssert((array != NULL) && (array->objects != NULL) && (array->count > 0UL) && (array->count <= array->capacity) && (objectIndex < array->count) && (array->objects[objectIndex] != NULL));
- if(!((array != NULL) && (array->objects != NULL) && (array->count > 0UL) && (array->count <= array->capacity) && (objectIndex < array->count) && (array->objects[objectIndex] != NULL))) { return; }
- CFRelease(array->objects[objectIndex]);
- array->objects[objectIndex] = NULL;
- if((objectIndex + 1UL) < array->count) { memmove(&array->objects[objectIndex], &array->objects[objectIndex + 1UL], sizeof(id) * ((array->count - 1UL) - objectIndex)); array->objects[array->count - 1UL] = NULL; }
- array->count--;
- }
- - (void)dealloc
- {
- if(JK_EXPECT_T(objects != NULL)) {
- NSUInteger atObject = 0UL;
- for(atObject = 0UL; atObject < count; atObject++) { if(JK_EXPECT_T(objects[atObject] != NULL)) { CFRelease(objects[atObject]); objects[atObject] = NULL; } }
- free(objects); objects = NULL;
- }
-
- [super dealloc];
- }
- - (NSUInteger)count
- {
- NSParameterAssert((objects != NULL) && (count <= capacity));
- return(count);
- }
- - (void)getObjects:(id *)objectsPtr range:(NSRange)range
- {
- NSParameterAssert((objects != NULL) && (count <= capacity));
- if((objectsPtr == NULL) && (NSMaxRange(range) > 0UL)) { [NSException raise:NSRangeException format:@"*** -[%@ %@]: pointer to objects array is NULL but range length is %lu", NSStringFromClass([self class]), NSStringFromSelector(_cmd), (unsigned long)NSMaxRange(range)]; }
- if((range.location > count) || (NSMaxRange(range) > count)) { [NSException raise:NSRangeException format:@"*** -[%@ %@]: index (%lu) beyond bounds (%lu)", NSStringFromClass([self class]), NSStringFromSelector(_cmd), (unsigned long)NSMaxRange(range), (unsigned long)count]; }
- #ifndef __clang_analyzer__
- memcpy(objectsPtr, objects + range.location, range.length * sizeof(id));
- #endif
- }
- - (id)objectAtIndex:(NSUInteger)objectIndex
- {
- if(objectIndex >= count) { [NSException raise:NSRangeException format:@"*** -[%@ %@]: index (%lu) beyond bounds (%lu)", NSStringFromClass([self class]), NSStringFromSelector(_cmd), (unsigned long)objectIndex, (unsigned long)count]; }
- NSParameterAssert((objects != NULL) && (count <= capacity) && (objects[objectIndex] != NULL));
- return(objects[objectIndex]);
- }
- - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len
- {
- NSParameterAssert((state != NULL) && (stackbuf != NULL) && (len > 0UL) && (objects != NULL) && (count <= capacity));
- if(JK_EXPECT_F(state->state == 0UL)) { state->mutationsPtr = (unsigned long *)&mutations; state->itemsPtr = stackbuf; }
- if(JK_EXPECT_F(state->state >= count)) { return(0UL); }
-
- NSUInteger enumeratedCount = 0UL;
- while(JK_EXPECT_T(enumeratedCount < len) && JK_EXPECT_T(state->state < count)) { NSParameterAssert(objects[state->state] != NULL); stackbuf[enumeratedCount++] = objects[state->state++]; }
-
- return(enumeratedCount);
- }
- - (void)insertObject:(id)anObject atIndex:(NSUInteger)objectIndex
- {
- if(mutations == 0UL) { [NSException raise:NSInternalInconsistencyException format:@"*** -[%@ %@]: mutating method sent to immutable object", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(anObject == NULL) { [NSException raise:NSInvalidArgumentException format:@"*** -[%@ %@]: attempt to insert nil", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(objectIndex > count) { [NSException raise:NSRangeException format:@"*** -[%@ %@]: index (%lu) beyond bounds (%lu)", NSStringFromClass([self class]), NSStringFromSelector(_cmd), (unsigned long)objectIndex, (unsigned long)(count + 1UL)]; }
- #ifdef __clang_analyzer__
- [anObject retain]; // Stupid clang analyzer... Issue #19.
- #else
- anObject = [anObject retain];
- #endif
- _JKArrayInsertObjectAtIndex(self, anObject, objectIndex);
- mutations = (mutations == NSUIntegerMax) ? 1UL : mutations + 1UL;
- }
- - (void)removeObjectAtIndex:(NSUInteger)objectIndex
- {
- if(mutations == 0UL) { [NSException raise:NSInternalInconsistencyException format:@"*** -[%@ %@]: mutating method sent to immutable object", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(objectIndex >= count) { [NSException raise:NSRangeException format:@"*** -[%@ %@]: index (%lu) beyond bounds (%lu)", NSStringFromClass([self class]), NSStringFromSelector(_cmd), (unsigned long)objectIndex, (unsigned long)count]; }
- _JKArrayRemoveObjectAtIndex(self, objectIndex);
- mutations = (mutations == NSUIntegerMax) ? 1UL : mutations + 1UL;
- }
- - (void)replaceObjectAtIndex:(NSUInteger)objectIndex withObject:(id)anObject
- {
- if(mutations == 0UL) { [NSException raise:NSInternalInconsistencyException format:@"*** -[%@ %@]: mutating method sent to immutable object", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(anObject == NULL) { [NSException raise:NSInvalidArgumentException format:@"*** -[%@ %@]: attempt to insert nil", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(objectIndex >= count) { [NSException raise:NSRangeException format:@"*** -[%@ %@]: index (%lu) beyond bounds (%lu)", NSStringFromClass([self class]), NSStringFromSelector(_cmd), (unsigned long)objectIndex, (unsigned long)count]; }
- #ifdef __clang_analyzer__
- [anObject retain]; // Stupid clang analyzer... Issue #19.
- #else
- anObject = [anObject retain];
- #endif
- _JKArrayReplaceObjectAtIndexWithObject(self, objectIndex, anObject);
- mutations = (mutations == NSUIntegerMax) ? 1UL : mutations + 1UL;
- }
- - (id)copyWithZone:(NSZone *)zone
- {
- NSParameterAssert((objects != NULL) && (count <= capacity));
- return((mutations == 0UL) ? [self retain] : [(NSArray *)[NSArray allocWithZone:zone] initWithObjects:objects count:count]);
- }
- - (id)mutableCopyWithZone:(NSZone *)zone
- {
- NSParameterAssert((objects != NULL) && (count <= capacity));
- return([(NSMutableArray *)[NSMutableArray allocWithZone:zone] initWithObjects:objects count:count]);
- }
- @end
- #pragma mark -
- @interface JKDictionaryEnumerator : NSEnumerator {
- id collection;
- NSUInteger nextObject;
- }
- - (id)initWithJKDictionary:(JKDictionary *)initDictionary;
- - (NSArray *)allObjects;
- - (id)nextObject;
- @end
- @implementation JKDictionaryEnumerator
- - (id)initWithJKDictionary:(JKDictionary *)initDictionary
- {
- NSParameterAssert(initDictionary != NULL);
- if((self = [super init]) == NULL) { return(NULL); }
- if((collection = (id)CFRetain(initDictionary)) == NULL) { [self autorelease]; return(NULL); }
- return(self);
- }
- - (void)dealloc
- {
- if(collection != NULL) { CFRelease(collection); collection = NULL; }
- [super dealloc];
- }
- - (NSArray *)allObjects
- {
- NSParameterAssert(collection != NULL);
- NSUInteger count = [(NSDictionary *)collection count], atObject = 0UL;
- id objects[count];
-
- while((objects[atObject] = [self nextObject]) != NULL) { NSParameterAssert(atObject < count); atObject++; }
-
- return([NSArray arrayWithObjects:objects count:atObject]);
- }
- - (id)nextObject
- {
- NSParameterAssert((collection != NULL) && (_JKDictionaryHashEntry(collection) != NULL));
- JKHashTableEntry *entry = _JKDictionaryHashEntry(collection);
- NSUInteger capacity = _JKDictionaryCapacity(collection);
- id returnObject = NULL;
-
- if(entry != NULL) { while((nextObject < capacity) && ((returnObject = entry[nextObject++].key) == NULL)) { /* ... */ } }
-
- return(returnObject);
- }
- @end
- #pragma mark -
- @interface JKDictionary : NSMutableDictionary <NSCopying, NSMutableCopying, NSFastEnumeration> {
- NSUInteger count, capacity, mutations;
- JKHashTableEntry *entry;
- }
- @end
- @implementation JKDictionary
- + (id)allocWithZone:(NSZone *)zone
- {
- #pragma unused(zone)
- [NSException raise:NSInvalidArgumentException format:@"*** - [%@ %@]: The %@ class is private to JSONKit and should not be used in this fashion.", NSStringFromClass([self class]), NSStringFromSelector(_cmd), NSStringFromClass([self class])];
- return(NULL);
- }
- // These values are taken from Core Foundation CF-550 CFBasicHash.m. As a bonus, they align very well with our JKHashTableEntry struct too.
- static const NSUInteger jk_dictionaryCapacities[] = {
- 0UL, 3UL, 7UL, 13UL, 23UL, 41UL, 71UL, 127UL, 191UL, 251UL, 383UL, 631UL, 1087UL, 1723UL,
- 2803UL, 4523UL, 7351UL, 11959UL, 19447UL, 31231UL, 50683UL, 81919UL, 132607UL,
- 214519UL, 346607UL, 561109UL, 907759UL, 1468927UL, 2376191UL, 3845119UL,
- 6221311UL, 10066421UL, 16287743UL, 26354171UL, 42641881UL, 68996069UL,
- 111638519UL, 180634607UL, 292272623UL, 472907251UL
- };
- static NSUInteger _JKDictionaryCapacityForCount(NSUInteger count) {
- NSUInteger bottom = 0UL, top = sizeof(jk_dictionaryCapacities) / sizeof(NSUInteger), mid = 0UL, tableSize = (NSUInteger)lround(floor(((double)count) * 1.33));
- while(top > bottom) { mid = (top + bottom) / 2UL; if(jk_dictionaryCapacities[mid] < tableSize) { bottom = mid + 1UL; } else { top = mid; } }
- return(jk_dictionaryCapacities[bottom]);
- }
- static void _JKDictionaryResizeIfNeccessary(JKDictionary *dictionary) {
- NSCParameterAssert((dictionary != NULL) && (dictionary->entry != NULL) && (dictionary->count <= dictionary->capacity));
-
- NSUInteger capacityForCount = 0UL;
- if(dictionary->capacity < (capacityForCount = _JKDictionaryCapacityForCount(dictionary->count + 1UL))) { // resize
- NSUInteger oldCapacity = dictionary->capacity;
- #ifndef NS_BLOCK_ASSERTIONS
- NSUInteger oldCount = dictionary->count;
- #endif
- JKHashTableEntry *oldEntry = dictionary->entry;
- if(JK_EXPECT_F((dictionary->entry = (JKHashTableEntry *)calloc(1UL, sizeof(JKHashTableEntry) * capacityForCount)) == NULL)) { [NSException raise:NSMallocException format:@"Unable to allocate memory for hash table."]; }
- dictionary->capacity = capacityForCount;
- dictionary->count = 0UL;
-
- NSUInteger idx = 0UL;
- for(idx = 0UL; idx < oldCapacity; idx++) { if(oldEntry[idx].key != NULL) { _JKDictionaryAddObject(dictionary, oldEntry[idx].keyHash, oldEntry[idx].key, oldEntry[idx].object); oldEntry[idx].keyHash = 0UL; oldEntry[idx].key = NULL; oldEntry[idx].object = NULL; } }
- NSCParameterAssert((oldCount == dictionary->count));
- free(oldEntry); oldEntry = NULL;
- }
- }
- static JKDictionary *_JKDictionaryCreate(id *keys, NSUInteger *keyHashes, id *objects, NSUInteger count, BOOL mutableCollection) {
- NSCParameterAssert((keys != NULL) && (keyHashes != NULL) && (objects != NULL) && (_JKDictionaryClass != NULL) && (_JKDictionaryInstanceSize > 0UL));
- JKDictionary *dictionary = NULL;
- if(JK_EXPECT_T((dictionary = (JKDictionary *)calloc(1UL, _JKDictionaryInstanceSize)) != NULL)) { // Directly allocate the JKDictionary instance via calloc.
- // the old version
- // dictionary->isa = _JKDictionaryClass;
- object_setClass(dictionary, _JKDictionaryClass);
- if((dictionary = [dictionary init]) == NULL) { return(NULL); }
- dictionary->capacity = _JKDictionaryCapacityForCount(count);
- dictionary->count = 0UL;
-
- if(JK_EXPECT_F((dictionary->entry = (JKHashTableEntry *)calloc(1UL, sizeof(JKHashTableEntry) * dictionary->capacity)) == NULL)) { [dictionary autorelease]; return(NULL); }
-
- NSUInteger idx = 0UL;
- for(idx = 0UL; idx < count; idx++) { _JKDictionaryAddObject(dictionary, keyHashes[idx], keys[idx], objects[idx]); }
-
- dictionary->mutations = (mutableCollection == NO) ? 0UL : 1UL;
- }
- return(dictionary);
- }
- - (void)dealloc
- {
- if(JK_EXPECT_T(entry != NULL)) {
- NSUInteger atEntry = 0UL;
- for(atEntry = 0UL; atEntry < capacity; atEntry++) {
- if(JK_EXPECT_T(entry[atEntry].key != NULL)) { CFRelease(entry[atEntry].key); entry[atEntry].key = NULL; }
- if(JK_EXPECT_T(entry[atEntry].object != NULL)) { CFRelease(entry[atEntry].object); entry[atEntry].object = NULL; }
- }
-
- free(entry); entry = NULL;
- }
-
- [super dealloc];
- }
- static JKHashTableEntry *_JKDictionaryHashEntry(JKDictionary *dictionary) {
- NSCParameterAssert(dictionary != NULL);
- return(dictionary->entry);
- }
- static NSUInteger _JKDictionaryCapacity(JKDictionary *dictionary) {
- NSCParameterAssert(dictionary != NULL);
- return(dictionary->capacity);
- }
- static void _JKDictionaryRemoveObjectWithEntry(JKDictionary *dictionary, JKHashTableEntry *entry) {
- NSCParameterAssert((dictionary != NULL) && (entry != NULL) && (entry->key != NULL) && (entry->object != NULL) && (dictionary->count > 0UL) && (dictionary->count <= dictionary->capacity));
- CFRelease(entry->key); entry->key = NULL;
- CFRelease(entry->object); entry->object = NULL;
- entry->keyHash = 0UL;
- dictionary->count--;
- // In order for certain invariants that are used to speed up the search for a particular key, we need to "re-add" all the entries in the hash table following this entry until we hit a NULL entry.
- NSUInteger removeIdx = entry - dictionary->entry, idx = 0UL;
- NSCParameterAssert((removeIdx < dictionary->capacity));
- for(idx = 0UL; idx < dictionary->capacity; idx++) {
- NSUInteger entryIdx = (removeIdx + idx + 1UL) % dictionary->capacity;
- JKHashTableEntry *atEntry = &dictionary->entry[entryIdx];
- if(atEntry->key == NULL) { break; }
- NSUInteger keyHash = atEntry->keyHash;
- id key = atEntry->key, object = atEntry->object;
- NSCParameterAssert(object != NULL);
- atEntry->keyHash = 0UL;
- atEntry->key = NULL;
- atEntry->object = NULL;
- NSUInteger addKeyEntry = keyHash % dictionary->capacity, addIdx = 0UL;
- for(addIdx = 0UL; addIdx < dictionary->capacity; addIdx++) {
- JKHashTableEntry *atAddEntry = &dictionary->entry[((addKeyEntry + addIdx) % dictionary->capacity)];
- if(JK_EXPECT_T(atAddEntry->key == NULL)) { NSCParameterAssert((atAddEntry->keyHash == 0UL) && (atAddEntry->object == NULL)); atAddEntry->key = key; atAddEntry->object = object; atAddEntry->keyHash = keyHash; break; }
- }
- }
- }
- static void _JKDictionaryAddObject(JKDictionary *dictionary, NSUInteger keyHash, id key, id object) {
- NSCParameterAssert((dictionary != NULL) && (key != NULL) && (object != NULL) && (dictionary->count < dictionary->capacity) && (dictionary->entry != NULL));
- NSUInteger keyEntry = keyHash % dictionary->capacity, idx = 0UL;
- for(idx = 0UL; idx < dictionary->capacity; idx++) {
- NSUInteger entryIdx = (keyEntry + idx) % dictionary->capacity;
- JKHashTableEntry *atEntry = &dictionary->entry[entryIdx];
- if(JK_EXPECT_F(atEntry->keyHash == keyHash) && JK_EXPECT_T(atEntry->key != NULL) && (JK_EXPECT_F(key == atEntry->key) || JK_EXPECT_F(CFEqual(atEntry->key, key)))) { _JKDictionaryRemoveObjectWithEntry(dictionary, atEntry); }
- if(JK_EXPECT_T(atEntry->key == NULL)) { NSCParameterAssert((atEntry->keyHash == 0UL) && (atEntry->object == NULL)); atEntry->key = key; atEntry->object = object; atEntry->keyHash = keyHash; dictionary->count++; return; }
- }
-
- // We should never get here. If we do, we -release the key / object because it's our responsibility.
- CFRelease(key);
- CFRelease(object);
- }
- - (NSUInteger)count
- {
- return(count);
- }
- static JKHashTableEntry *_JKDictionaryHashTableEntryForKey(JKDictionary *dictionary, id aKey) {
- NSCParameterAssert((dictionary != NULL) && (dictionary->entry != NULL) && (dictionary->count <= dictionary->capacity));
- if((aKey == NULL) || (dictionary->capacity == 0UL)) { return(NULL); }
- NSUInteger keyHash = CFHash(aKey), keyEntry = (keyHash % dictionary->capacity), idx = 0UL;
- JKHashTableEntry *atEntry = NULL;
- for(idx = 0UL; idx < dictionary->capacity; idx++) {
- atEntry = &dictionary->entry[(keyEntry + idx) % dictionary->capacity];
- if(JK_EXPECT_T(atEntry->keyHash == keyHash) && JK_EXPECT_T(atEntry->key != NULL) && ((atEntry->key == aKey) || CFEqual(atEntry->key, aKey))) { NSCParameterAssert(atEntry->object != NULL); return(atEntry); break; }
- if(JK_EXPECT_F(atEntry->key == NULL)) { NSCParameterAssert(atEntry->object == NULL); return(NULL); break; } // If the key was in the table, we would have found it by now.
- }
- return(NULL);
- }
- - (id)objectForKey:(id)aKey
- {
- NSParameterAssert((entry != NULL) && (count <= capacity));
- JKHashTableEntry *entryForKey = _JKDictionaryHashTableEntryForKey(self, aKey);
- return((entryForKey != NULL) ? entryForKey->object : NULL);
- }
- - (void)getObjects:(id *)objects andKeys:(id *)keys
- {
- NSParameterAssert((entry != NULL) && (count <= capacity));
- NSUInteger atEntry = 0UL; NSUInteger arrayIdx = 0UL;
- for(atEntry = 0UL; atEntry < capacity; atEntry++) {
- if(JK_EXPECT_T(entry[atEntry].key != NULL)) {
- NSCParameterAssert((entry[atEntry].object != NULL) && (arrayIdx < count));
- if(JK_EXPECT_T(keys != NULL)) { keys[arrayIdx] = entry[atEntry].key; }
- if(JK_EXPECT_T(objects != NULL)) { objects[arrayIdx] = entry[atEntry].object; }
- arrayIdx++;
- }
- }
- }
- - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len
- {
- NSParameterAssert((state != NULL) && (stackbuf != NULL) && (len > 0UL) && (entry != NULL) && (count <= capacity));
- if(JK_EXPECT_F(state->state == 0UL)) { state->mutationsPtr = (unsigned long *)&mutations; state->itemsPtr = stackbuf; }
- if(JK_EXPECT_F(state->state >= capacity)) { return(0UL); }
-
- NSUInteger enumeratedCount = 0UL;
- while(JK_EXPECT_T(enumeratedCount < len) && JK_EXPECT_T(state->state < capacity)) { if(JK_EXPECT_T(entry[state->state].key != NULL)) { stackbuf[enumeratedCount++] = entry[state->state].key; } state->state++; }
-
- return(enumeratedCount);
- }
- - (NSEnumerator *)keyEnumerator
- {
- return([[[JKDictionaryEnumerator alloc] initWithJKDictionary:self] autorelease]);
- }
- - (void)setObject:(id)anObject forKey:(id)aKey
- {
- if(mutations == 0UL) { [NSException raise:NSInternalInconsistencyException format:@"*** -[%@ %@]: mutating method sent to immutable object", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(aKey == NULL) { [NSException raise:NSInvalidArgumentException format:@"*** -[%@ %@]: attempt to insert nil key", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(anObject == NULL) { [NSException raise:NSInvalidArgumentException format:@"*** -[%@ %@]: attempt to insert nil value (key: %@)", NSStringFromClass([self class]), NSStringFromSelector(_cmd), aKey]; }
-
- _JKDictionaryResizeIfNeccessary(self);
- #ifndef __clang_analyzer__
- aKey = [aKey copy]; // Why on earth would clang complain that this -copy "might leak",
- anObject = [anObject retain]; // but this -retain doesn't!?
- #endif // __clang_analyzer__
- _JKDictionaryAddObject(self, CFHash(aKey), aKey, anObject);
- mutations = (mutations == NSUIntegerMax) ? 1UL : mutations + 1UL;
- }
- - (void)removeObjectForKey:(id)aKey
- {
- if(mutations == 0UL) { [NSException raise:NSInternalInconsistencyException format:@"*** -[%@ %@]: mutating method sent to immutable object", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- if(aKey == NULL) { [NSException raise:NSInvalidArgumentException format:@"*** -[%@ %@]: attempt to remove nil key", NSStringFromClass([self class]), NSStringFromSelector(_cmd)]; }
- JKHashTableEntry *entryForKey = _JKDictionaryHashTableEntryForKey(self, aKey);
- if(entryForKey != NULL) {
- _JKDictionaryRemoveObjectWithEntry(self, entryForKey);
- mutations = (mutations == NSUIntegerMax) ? 1UL : mutations + 1UL;
- }
- }
- - (id)copyWithZone:(NSZone *)zone
- {
- NSParameterAssert((entry != NULL) && (count <= capacity));
- return((mutations == 0UL) ? [self retain] : [[NSDictionary allocWithZone:zone] initWithDictionary:self]);
- }
- - (id)mutableCopyWithZone:(NSZone *)zone
- {
- NSParameterAssert((entry != NULL) && (count <= capacity));
- return([[NSMutableDictionary allocWithZone:zone] initWithDictionary:self]);
- }
- @end
- #pragma mark -
- JK_STATIC_INLINE size_t jk_min(size_t a, size_t b) { return((a < b) ? a : b); }
- JK_STATIC_INLINE size_t jk_max(size_t a, size_t b) { return((a > b) ? a : b); }
- JK_STATIC_INLINE JKHash jk_calculateHash(JKHash currentHash, unsigned char c) { return((((currentHash << 5) + currentHash) + (c - 29)) ^ (currentHash >> 19)); }
- static void jk_error(JKParseState *parseState, NSString *format, ...) {
- NSCParameterAssert((parseState != NULL) && (format != NULL));
-
- va_list varArgsList;
- va_start(varArgsList, format);
- NSString *formatString = [[[NSString alloc] initWithFormat:format arguments:varArgsList] autorelease];
- va_end(varArgsList);
-
- #if 0
- const unsigned char *lineStart = parseState->stringBuffer.bytes.ptr + parseState->lineStartIndex;
- const unsigned char *lineEnd = lineStart;
- const unsigned char *atCharacterPtr = NULL;
-
- for(atCharacterPtr = lineStart; atCharacterPtr < JK_END_STRING_PTR(parseState); atCharacterPtr++) { lineEnd = atCharacterPtr; if(jk_parse_is_newline(parseState, atCharacterPtr)) { break; } }
-
- NSString *lineString = @"", *carretString = @"";
- if(lineStart < JK_END_STRING_PTR(parseState)) {
- lineString = [[[NSString alloc] initWithBytes:lineStart length:(lineEnd - lineStart) encoding:NSUTF8StringEncoding] autorelease];
- carretString = [NSString stringWithFormat:@"%*.*s^", (int)(parseState->atIndex - parseState->lineStartIndex), (int)(parseState->atIndex - parseState->lineStartIndex), " "];
- }
- #endif
-
- if(parseState->error == NULL) {
- parseState->error = [NSError errorWithDomain:@"JKErrorDomain" code:-1L userInfo:
- [NSDictionary dictionaryWithObjectsAndKeys:
- formatString, NSLocalizedDescriptionKey,
- [NSNumber numberWithUnsignedLong:parseState->atIndex], @"JKAtIndexKey",
- [NSNumber numberWithUnsignedLong:parseState->lineNumber], @"JKLineNumberKey",
- //lineString, @"JKErrorLine0Key",
- //carretString, @"JKErrorLine1Key",
- NULL]];
- }
- }
- #pragma mark -
- #pragma mark Buffer and Object Stack management functions
- static void jk_managedBuffer_release(JKManagedBuffer *managedBuffer) {
- if((managedBuffer->flags & JKManagedBufferMustFree)) {
- if(managedBuffer->bytes.ptr != NULL) { free(managedBuffer->bytes.ptr); managedBuffer->bytes.ptr = NULL; }
- managedBuffer->flags &= ~JKManagedBufferMustFree;
- }
-
- managedBuffer->bytes.ptr = NULL;
- managedBuffer->bytes.length = 0UL;
- managedBuffer->flags &= ~JKManagedBufferLocationMask;
- }
- static void jk_managedBuffer_setToStackBuffer(JKManagedBuffer *managedBuffer, unsigned char *ptr, size_t length) {
- jk_managedBuffer_release(managedBuffer);
- managedBuffer->bytes.ptr = ptr;
- managedBuffer->bytes.length = length;
- managedBuffer->flags = (managedBuffer->flags & ~JKManagedBufferLocationMask) | JKManagedBufferOnStack;
- }
- static unsigned char *jk_managedBuffer_resize(JKManagedBuffer *managedBuffer, size_t newSize) {
- size_t roundedUpNewSize = newSize;
-
- if(managedBuffer->roundSizeUpToMultipleOf > 0UL) { roundedUpNewSize = newSize + ((managedBuffer->roundSizeUpToMultipleOf - (newSize % managedBuffer->roundSizeUpToMultipleOf)) % managedBuffer->roundSizeUpToMultipleOf); }
-
- if((roundedUpNewSize != managedBuffer->bytes.length) && (roundedUpNewSize > managedBuffer->bytes.length)) {
- if((managedBuffer->flags & JKManagedBufferLocationMask) == JKManagedBufferOnStack) {
- NSCParameterAssert((managedBuffer->flags & JKManagedBufferMustFree) == 0);
- unsigned char *newBuffer = NULL, *oldBuffer = managedBuffer->bytes.ptr;
-
- if((newBuffer = (unsigned char *)malloc(roundedUpNewSize)) == NULL) { return(NULL); }
- memcpy(newBuffer, oldBuffer, jk_min(managedBuffer->bytes.length, roundedUpNewSize));
- managedBuffer->flags = (managedBuffer->flags & ~JKManagedBufferLocationMask) | (JKManagedBufferOnHeap | JKManagedBufferMustFree);
- managedBuffer->bytes.ptr = newBuffer;
- managedBuffer->bytes.length = roundedUpNewSize;
- } else {
- NSCParameterAssert(((managedBuffer->flags & JKManagedBufferMustFree) != 0) && ((managedBuffer->flags & JKManagedBufferLocationMask) == JKManagedBufferOnHeap));
- if((managedBuffer->bytes.ptr = (unsigned char *)reallocf(managedBuffer->bytes.ptr, roundedUpNewSize)) == NULL) { return(NULL); }
- managedBuffer->bytes.length = roundedUpNewSize;
- }
- }
-
- return(managedBuffer->bytes.ptr);
- }
- static void jk_objectStack_release(JKObjectStack *objectStack) {
- NSCParameterAssert(objectStack != NULL);
-
- NSCParameterAssert(objectStack->index <= objectStack->count);
- size_t atIndex = 0UL;
- for(atIndex = 0UL; atIndex < objectStack->index; atIndex++) {
- if(objectStack->objects[atIndex] != NULL) { CFRelease(objectStack->objects[atIndex]); objectStack->objects[atIndex] = NULL; }
- if(objectStack->keys[atIndex] != NULL) { CFRelease(objectStack->keys[atIndex]); objectStack->keys[atIndex] = NULL; }
- }
- objectStack->index = 0UL;
-
- if(objectStack->flags & JKObjectStackMustFree) {
- NSCParameterAssert((objectStack->flags & JKObjectStackLocationMask) == JKObjectStackOnHeap);
- if(objectStack->objects != NULL) { free(objectStack->objects); objectStack->objects = NULL; }
- if(objectStack->keys != NULL) { free(objectStack->keys); objectStack->keys = NULL; }
- if(objectStack->cfHashes != NULL) { free(objectStack->cfHashes); objectStack->cfHashes = NULL; }
- objectStack->flags &= ~JKObjectStackMustFree;
- }
-
- objectStack->objects = NULL;
- objectStack->keys = NULL;
- objectStack->cfHashes = NULL;
-
- objectStack->count = 0UL;
- objectStack->flags &= ~JKObjectStackLocationMask;
- }
- static void jk_objectStack_setToStackBuffer(JKObjectStack *objectStack, void **objects, void **keys, CFHashCode *cfHashes, size_t count) {
- NSCParameterAssert((objectStack != NULL) && (objects != NULL) && (keys != NULL) && (cfHashes != NULL) && (count > 0UL));
- jk_objectStack_release(objectStack);
- objectStack->objects = objects;
- objectStack->keys = keys;
- objectStack->cfHashes = cfHashes;
- objectStack->count = count;
- objectStack->flags = (objectStack->flags & ~JKObjectStackLocationMask) | JKObjectStackOnStack;
- #ifndef NS_BLOCK_ASSERTIONS
- size_t idx;
- for(idx = 0UL; idx < objectStack->count; idx++) { objectStack->objects[idx] = NULL; objectStack->keys[idx] = NULL; objectStack->cfHashes[idx] = 0UL; }
- #endif
- }
- static int jk_objectStack_resize(JKObjectStack *objectStack, size_t newCount) {
- size_t roundedUpNewCount = newCount;
- int returnCode = 0;
-
- void **newObjects = NULL, **newKeys = NULL;
- CFHashCode *newCFHashes = NULL;
-
- if(objectStack->roundSizeUpToMultipleOf > 0UL) { roundedUpNewCount = newCount + ((objectStack->roundSizeUpToMultipleOf - (newCount % objectStack->roundSizeUpToMultipleOf)) % objectStack->roundSizeUpToMultipleOf); }
-
- if((roundedUpNewCount != objectStack->count) && (roundedUpNewCount > objectStack->count)) {
- if((objectStack->flags & JKObjectStackLocationMask) == JKObjectStackOnStack) {
- NSCParameterAssert((objectStack->flags & JKObjectStackMustFree) == 0);
-
- if((newObjects = (void ** )calloc(1UL, roundedUpNewCount * sizeof(void * ))) == NULL) { returnCode = 1; goto errorExit; }
- memcpy(newObjects, objectStack->objects, jk_min(objectStack->count, roundedUpNewCount) * sizeof(void *));
- if((newKeys = (void ** )calloc(1UL, roundedUpNewCount * sizeof(void * ))) == NULL) { returnCode = 1; goto errorExit; }
- memcpy(newKeys, objectStack->keys, jk_min(objectStack->count, roundedUpNewCount) * sizeof(void *));
-
- if((newCFHashes = (CFHashCode *)calloc(1UL, roundedUpNewCount * sizeof(CFHashCode))) == NULL) { returnCode = 1; goto errorExit; }
- memcpy(newCFHashes, objectStack->cfHashes, jk_min(objectStack->count, roundedUpNewCount) * sizeof(CFHashCode));
-
- objectStack->flags = (objectStack->flags & ~JKObjectStackLocationMask) | (JKObjectStackOnHeap | JKObjectStackMustFree);
- objectStack->objects = newObjects; newObjects = NULL;
- objectStack->keys = newKeys; newKeys = NULL;
- objectStack->cfHashes = newCFHashes; newCFHashes = NULL;
- objectStack->count = roundedUpNewCount;
- } else {
- NSCParameterAssert(((objectStack->flags & JKObjectStackMustFree) != 0) && ((objectStack->flags & JKObjectStackLocationMask) == JKObjectStackOnHeap));
- if((newObjects = (void ** )realloc(objectStack->objects, roundedUpNewCount * sizeof(void * ))) != NULL) { objectStack->objects = newObjects; newObjects = NULL; } else { returnCode = 1; goto errorExit; }
- if((newKeys = (void ** )realloc(objectStack->keys, roundedUpNewCount * sizeof(void * ))) != NULL) { objectStack->keys = newKeys; newKeys = NULL; } else { returnCode = 1; goto errorExit; }
- if((newCFHashes = (CFHashCode *)realloc(objectStack->cfHashes, roundedUpNewCount * sizeof(CFHashCode))) != NULL) { objectStack->cfHashes = newCFHashes; newCFHashes = NULL; } else { returnCode = 1; goto errorExit; }
-
- #ifndef NS_BLOCK_ASSERTIONS
- size_t idx;
- for(idx = objectStack->count; idx < roundedUpNewCount; idx++) { objectStack->objects[idx] = NULL; objectStack->keys[idx] = NULL; objectStack->cfHashes[idx] = 0UL; }
- #endif
- objectStack->count = roundedUpNewCount;
- }
- }
-
- errorExit:
- if(newObjects != NULL) { free(newObjects); newObjects = NULL; }
- if(newKeys != NULL) { free(newKeys); newKeys = NULL; }
- if(newCFHashes != NULL) { free(newCFHashes); newCFHashes = NULL; }
-
- return(returnCode);
- }
- ////////////
- #pragma mark -
- #pragma mark Unicode related functions
- JK_STATIC_INLINE ConversionResult isValidCodePoint(UTF32 *u32CodePoint) {
- ConversionResult result = conversionOK;
- UTF32 ch = *u32CodePoint;
-
- if(JK_EXPECT_F(ch >= UNI_SUR_HIGH_START) && (JK_EXPECT_T(ch <= UNI_SUR_LOW_END))) { result = sourceIllegal; ch = UNI_REPLACEMENT_CHAR; goto finished; }
- if(JK_EXPECT_F(ch >= 0xFDD0U) && (JK_EXPECT_F(ch <= 0xFDEFU) || JK_EXPECT_F((ch & 0xFFFEU) == 0xFFFEU)) && JK_EXPECT_T(ch <= 0x10FFFFU)) { result = sourceIllegal; ch = UNI_REPLACEMENT_CHAR; goto finished; }
- if(JK_EXPECT_F(ch == 0U)) { result = sourceIllegal; ch = UNI_REPLACEMENT_CHAR; goto finished; }
-
- finished:
- *u32CodePoint = ch;
- return(result);
- }
- static int isLegalUTF8(const UTF8 *source, size_t length) {
- const UTF8 *srcptr = source + length;
- UTF8 a;
-
- switch(length) {
- default: return(0); // Everything else falls through when "true"...
- case 4: if(JK_EXPECT_F(((a = (*--srcptr)) < 0x80) || (a > 0xBF))) { return(0); }
- case 3: if(JK_EXPECT_F(((a = (*--srcptr)) < 0x80) || (a > 0xBF))) { return(0); }
- case 2: if(JK_EXPECT_F( (a = (*--srcptr)) > 0xBF )) { return(0); }
-
- switch(*source) { // no fall-through in this inner switch
- case 0xE0: if(JK_EXPECT_F(a < 0xA0)) { return(0); } break;
- case 0xED: if(JK_EXPECT_F(a > 0x9F)) { return(0); } break;
- case 0xF0: if(JK_EXPECT_F(a < 0x90)) { return(0); } break;
- case 0xF4: if(JK_EXPECT_F(a > 0x8F)) { return(0); } break;
- default: if(JK_EXPECT_F(a < 0x80)) { return(0); }
- }
-
- case 1: if(JK_EXPECT_F((JK_EXPECT_T(*source < 0xC2)) && JK_EXPECT_F(*source >= 0x80))) { return(0); }
- }
-
- if(JK_EXPECT_F(*source > 0xF4)) { return(0); }
-
- return(1);
- }
- static ConversionResult ConvertSingleCodePointInUTF8(const UTF8 *sourceStart, const UTF8 *sourceEnd, UTF8 const **nextUTF8, UTF32 *convertedUTF32) {
- ConversionResult result = conversionOK;
- const UTF8 *source = sourceStart;
- UTF32 ch = 0UL;
-
- #if !defined(JK_FAST_TRAILING_BYTES)
- unsigned short extraBytesToRead = trailingBytesForUTF8[*source];
- #else
- unsigned short extraBytesToRead = __builtin_clz(((*source)^0xff) << 25);
- #endif
-
- if(JK_EXPECT_F((source + extraBytesToRead + 1) > sourceEnd) || JK_EXPECT_F(!isLegalUTF8(source, extraBytesToRead + 1))) {
- source++;
- while((source < sourceEnd) && (((*source) & 0xc0) == 0x80) && ((source - sourceStart) < (extraBytesToRead + 1))) { source++; }
- NSCParameterAssert(source <= sourceEnd);
- result = ((source < sourceEnd) && (((*source) & 0xc0) != 0x80)) ? sourceIllegal : ((sourceStart + extraBytesToRead + 1) > sourceEnd) ? sourceExhausted : sourceIllegal;
- ch = UNI_REPLACEMENT_CHAR;
- goto finished;
- }
-
- switch(extraBytesToRead) { // The cases all fall through.
- case 5: ch += *source++; ch <<= 6;
- case 4: ch += *source++; ch <<= 6;
- case 3: ch += *source++; ch <<= 6;
- case 2: ch += *source++; ch <<= 6;
- case 1: ch += *source++; ch <<= 6;
- case 0: ch += *source++;
- }
- ch -= offsetsFromUTF8[extraBytesToRead];
-
- result = isValidCodePoint(&ch);
-
- finished:
- *nextUTF8 = source;
- *convertedUTF32 = ch;
-
- return(result);
- }
- static ConversionResult ConvertUTF32toUTF8 (UTF32 u32CodePoint, UTF8 **targetStart, UTF8 *targetEnd) {
- const UTF32 byteMask = 0xBF, byteMark = 0x80;
- ConversionResult result = conversionOK;
- UTF8 *target = *targetStart;
- UTF32 ch = u32CodePoint;
- unsigned short bytesToWrite = 0;
-
- result = isValidCodePoint(&ch);
-
- // Figure out how many bytes the result will require. Turn any illegally large UTF32 things (> Plane 17) into replacement chars.
- if(ch < (UTF32)0x80) { bytesToWrite = 1; }
- else if(ch < (UTF32)0x800) { bytesToWrite = 2; }
- else if(ch < (UTF32)0x10000) { bytesToWrite = 3; }
- else if(ch <= UNI_MAX_LEGAL_UTF32) { bytesToWrite = 4; }
- else { bytesToWrite = 3; ch = UNI_REPLACEMENT_CHAR; result = sourceIllegal; }
-
- target += bytesToWrite;
- if (target > targetEnd) { target -= bytesToWrite; result = targetExhausted; goto finished; }
-
- switch (bytesToWrite) { // note: everything falls through.
- case 4: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
- case 3: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
- case 2: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;
- case 1: *--target = (UTF8) (ch | firstByteMark[bytesToWrite]);
- }
-
- target += bytesToWrite;
-
- finished:
- *targetStart = target;
- return(result);
- }
- JK_STATIC_INLINE int jk_string_add_unicodeCodePoint(JKParseState *parseState, uint32_t unicodeCodePoint, size_t *tokenBufferIdx, JKHash *stringHash) {
- UTF8 *u8s = &parseState->token.tokenBuffer.bytes.ptr[*tokenBufferIdx];
- ConversionResult result;
-
- if((result = ConvertUTF32toUTF8(unicodeCodePoint, &u8s, (parseState->token.tokenBuffer.bytes.ptr + parseState->token.tokenBuffer.bytes.length))) != conversionOK) { if(result == targetExhausted) { return(1); } }
- size_t utf8len = u8s - &parseState->token.tokenBuffer.bytes.ptr[*tokenBufferIdx], nextIdx = (*tokenBufferIdx) + utf8len;
-
- while(*tokenBufferIdx < nextIdx) { *stringHash = jk_calculateHash(*stringHash, parseState->token.tokenBuffer.bytes.ptr[(*tokenBufferIdx)++]); }
-
- return(0);
- }
- ////////////
- #pragma mark -
- #pragma mark Decoding / parsing / deserializing functions
- static int jk_parse_string(JKParseState *parseState) {
- NSCParameterAssert((parseState != NULL) && (JK_AT_STRING_PTR(parseState) <= JK_END_STRING_PTR(parseState)));
- const unsigned char *stringStart = JK_AT_STRING_PTR(parseState) + 1;
- const unsigned char *endOfBuffer = JK_END_STRING_PTR(parseState);
- const unsigned char *atStringCharacter = stringStart;
- unsigned char *tokenBuffer = parseState->token.tokenBuffer.bytes.ptr;
- size_t tokenStartIndex = parseState->atIndex;
- size_t tokenBufferIdx = 0UL;
-
- int onlySimpleString = 1, stringState = JSONStringStateStart;
- uint16_t escapedUnicode1 = 0U, escapedUnicode2 = 0U;
- uint32_t escapedUnicodeCodePoint = 0U;
- JKHash stringHash = JK_HASH_INIT;
-
- while(1) {
- unsigned long currentChar;
-
- if(JK_EXPECT_F(atStringCharacter == endOfBuffer)) { /* XXX Add error message */ stringState = JSONStringStateError; goto finishedParsing; }
-
- if(JK_EXPECT_F((currentChar = *atStringCharacter++) >= 0x80UL)) {
- const unsigned char *nextValidCharacter = NULL;
- UTF32 u32ch = 0U;
- ConversionResult result;
-
- if(JK_EXPECT_F((result = ConvertSingleCodePointInUTF8(atStringCharacter - 1, endOfBuffer, (UTF8 const **)&nextValidCharacter, &u32ch)) != conversionOK)) { goto switchToSlowPath; }
- stringHash = jk_calculateHash(stringHash, currentChar);
- while(atStringCharacter < nextValidCharacter) { NSCParameterAssert(JK_AT_STRING_PTR(parseState) <= JK_END_STRING_PTR(parseState)); stringHash = jk_calculateHash(stringHash, *atStringCharacter++); }
- continue;
- } else {
- if(JK_EXPECT_F(currentChar == (unsigned long)'"')) { stringState = JSONStringStateFinished; goto finishedParsing; }
-
- if(JK_EXPECT_F(currentChar == (unsigned long)'\\')) {
- switchToSlowPath:
- onlySimpleString = 0;
- stringState = JSONStringStateParsing;
- tokenBufferIdx = (atStringCharacter - stringStart) - 1L;
- if(JK_EXPECT_F((tokenBufferIdx + 16UL) > parseState->token.tokenBuffer.bytes.length)) { if((tokenBuffer = jk_managedBuffer_resize(&parseState->token.tokenBuffer, tokenBufferIdx + 1024UL)) == NULL) { jk_error(parseState, @"Internal error: Unable to resize temporary buffer. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); stringState = JSONStringStateError; goto finishedParsing; } }
- memcpy(tokenBuffer, stringStart, tokenBufferIdx);
- goto slowMatch;
- }
-
- if(JK_EXPECT_F(currentChar < 0x20UL)) { jk_error(parseState, @"Invalid character < 0x20 found in string: 0x%2.2x.", currentChar); stringState = JSONStringStateError; goto finishedParsing; }
-
- stringHash = jk_calculateHash(stringHash, currentChar);
- }
- }
-
- slowMatch:
-
- for(atStringCharacter = (stringStart + ((atStringCharacter - stringStart) - 1L)); (atStringCharacter < endOfBuffer) && (tokenBufferIdx < parseState->token.tokenBuffer.bytes.length); atStringCharacter++) {
- if((tokenBufferIdx + 16UL) > parseState->token.tokenBuffer.bytes.length) { if((tokenBuffer = jk_managedBuffer_resize(&parseState->token.tokenBuffer, tokenBufferIdx + 1024UL)) == NULL) { jk_error(parseState, @"Internal error: Unable to resize temporary buffer. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); stringState = JSONStringStateError; goto finishedParsing; } }
-
- NSCParameterAssert(tokenBufferIdx < parseState->token.tokenBuffer.bytes.length);
-
- unsigned long currentChar = (*atStringCharacter), escapedChar;
-
- if(JK_EXPECT_T(stringState == JSONStringStateParsing)) {
- if(JK_EXPECT_T(currentChar >= 0x20UL)) {
- if(JK_EXPECT_T(currentChar < (unsigned long)0x80)) { // Not a UTF8 sequence
- if(JK_EXPECT_F(currentChar == (unsigned long)'"')) { stringState = JSONStringStateFinished; atStringCharacter++; goto finishedParsing; }
- if(JK_EXPECT_F(currentChar == (unsigned long)'\\')) { stringState = JSONStringStateEscape; continue; }
- stringHash = jk_calculateHash(stringHash, currentChar);
- tokenBuffer[tokenBufferIdx++] = currentChar;
- continue;
- } else { // UTF8 sequence
- const unsigned char *nextValidCharacter = NULL;
- UTF32 u32ch = 0U;
- ConversionResult result;
-
- if(JK_EXPECT_F((result = ConvertSingleCodePointInUTF8(atStringCharacter, endOfBuffer, (UTF8 const **)&nextValidCharacter, &u32ch)) != conversionOK)) {
- if((result == sourceIllegal) && ((parseState->parseOptionFlags & JKParseOptionLooseUnicode) == 0)) { jk_error(parseState, @"Illegal UTF8 sequence found in \"\" string."); stringState = JSONStringStateError; goto finishedParsing; }
- if(result == sourceExhausted) { jk_error(parseState, @"End of buffer reached while parsing UTF8 in \"\" string."); stringState = JSONStringStateError; goto finishedParsing; }
- if(jk_string_add_unicodeCodePoint(parseState, u32ch, &tokenBufferIdx, &stringHash)) { jk_error(parseState, @"Internal error: Unable to add UTF8 sequence to internal string buffer. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); stringState = JSONStringStateError; goto finishedParsing; }
- atStringCharacter = nextValidCharacter - 1;
- continue;
- } else {
- while(atStringCharacter < nextValidCharacter) { tokenBuffer[tokenBufferIdx++] = *atStringCharacter; stringHash = jk_calculateHash(stringHash, *atStringCharacter++); }
- atStringCharacter--;
- continue;
- }
- }
- } else { // currentChar < 0x20
- jk_error(parseState, @"Invalid character < 0x20 found in string: 0x%2.2x.", currentChar); stringState = JSONStringStateError; goto finishedParsing;
- }
-
- } else { // stringState != JSONStringStateParsing
- int isSurrogate = 1;
-
- switch(stringState) {
- case JSONStringStateEscape:
- switch(currentChar) {
- case 'u': escapedUnicode1 = 0U; escapedUnicode2 = 0U; escapedUnicodeCodePoint = 0U; stringState = JSONStringStateEscapedUnicode1; break;
-
- case 'b': escapedChar = '\b'; goto parsedEscapedChar;
- case 'f': escapedChar = '\f'; goto parsedEscapedChar;
- case 'n': escapedChar = '\n'; goto parsedEscapedChar;
- case 'r': escapedChar = '\r'; goto parsedEscapedChar;
- case 't': escapedChar = '\t'; goto parsedEscapedChar;
- case '\\': escapedChar = '\\'; goto parsedEscapedChar;
- case '/': escapedChar = '/'; goto parsedEscapedChar;
- case '"': escapedChar = '"'; goto parsedEscapedChar;
-
- parsedEscapedChar:
- stringState = JSONStringStateParsing;
- stringHash = jk_calculateHash(stringHash, escapedChar);
- tokenBuffer[tokenBufferIdx++] = escapedChar;
- break;
-
- default: jk_error(parseState, @"Invalid escape sequence found in \"\" string."); stringState = JSONStringStateError; goto finishedParsing; break;
- }
- break;
-
- case JSONStringStateEscapedUnicode1:
- case JSONStringStateEscapedUnicode2:
- case JSONStringStateEscapedUnicode3:
- case JSONStringStateEscapedUnicode4: isSurrogate = 0;
- case JSONStringStateEscapedUnicodeSurrogate1:
- case JSONStringStateEscapedUnicodeSurrogate2:
- case JSONStringStateEscapedUnicodeSurrogate3:
- case JSONStringStateEscapedUnicodeSurrogate4:
- {
- uint16_t hexValue = 0U;
-
- switch(currentChar) {
- case '0' ... '9': hexValue = currentChar - '0'; goto parsedHex;
- case 'a' ... 'f': hexValue = (currentChar - 'a') + 10U; goto parsedHex;
- case 'A' ... 'F': hexValue = (currentChar - 'A') + 10U; goto parsedHex;
-
- parsedHex:
- if(!isSurrogate) { escapedUnicode1 = (escapedUnicode1 << 4) | hexValue; } else { escapedUnicode2 = (escapedUnicode2 << 4) | hexValue; }
-
- if(stringState == JSONStringStateEscapedUnicode4) {
- if(((escapedUnicode1 >= 0xD800U) && (escapedUnicode1 < 0xE000U))) {
- if((escapedUnicode1 >= 0xD800U) && (escapedUnicode1 < 0xDC00U)) { stringState = JSONStringStateEscapedNeedEscapeForSurrogate; }
- else if((escapedUnicode1 >= 0xDC00U) && (escapedUnicode1 < 0xE000U)) {
- if((parseState->parseOptionFlags & JKParseOptionLooseUnicode)) { escapedUnicodeCodePoint = UNI_REPLACEMENT_CHAR; }
- else { jk_error(parseState, @"Illegal \\u Unicode escape sequence."); stringState = JSONStringStateError; goto finishedParsing; }
- }
- }
- else { escapedUnicodeCodePoint = escapedUnicode1; }
- }
-
- if(stringState == JSONStringStateEscapedUnicodeSurrogate4) {
- if((escapedUnicode2 < 0xdc00) || (escapedUnicode2 > 0xdfff)) {
- if((parseState->parseOptionFlags & JKParseOptionLooseUnicode)) { escapedUnicodeCodePoint = UNI_REPLACEMENT_CHAR; }
- else { jk_error(parseState, @"Illegal \\u Unicode escape sequence."); stringState = JSONStringStateError; goto finishedParsing; }
- }
- else { escapedUnicodeCodePoint = ((escapedUnicode1 - 0xd800) * 0x400) + (escapedUnicode2 - 0xdc00) + 0x10000; }
- }
-
- if((stringState == JSONStringStateEscapedUnicode4) || (stringState == JSONStringStateEscapedUnicodeSurrogate4)) {
- if((isValidCodePoint(&escapedUnicodeCodePoint) == sourceIllegal) && ((parseState->parseOptionFlags & JKParseOptionLooseUnicode) == 0)) { jk_error(parseState, @"Illegal \\u Unicode escape sequence."); stringState = JSONStringStateError; goto finishedParsing; }
- stringState = JSONStringStateParsing;
- if(jk_string_add_unicodeCodePoint(parseState, escapedUnicodeCodePoint, &tokenBufferIdx, &stringHash)) { jk_error(parseState, @"Internal error: Unable to add UTF8 sequence to internal string buffer. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); stringState = JSONStringStateError; goto finishedParsing; }
- }
- else if((stringState >= JSONStringStateEscapedUnicode1) && (stringState <= JSONStringStateEscapedUnicodeSurrogate4)) { stringState++; }
- break;
-
- default: jk_error(parseState, @"Unexpected character found in \\u Unicode escape sequence. Found '%c', expected [0-9a-fA-F].", currentChar); stringState = JSONStringStateError; goto finishedParsing; break;
- }
- }
- break;
-
- case JSONStringStateEscapedNeedEscapeForSurrogate:
- if(currentChar == '\\') { stringState = JSONStringStateEscapedNeedEscapedUForSurrogate; }
- else {
- if((parseState->parseOptionFlags & JKParseOptionLooseUnicode) == 0) { jk_error(parseState, @"Required a second \\u Unicode escape sequence following a surrogate \\u Unicode escape sequence."); stringState = JSONStringStateError; goto finishedParsing; }
- else { stringState = JSONStringStateParsing; atStringCharacter--; if(jk_string_add_unicodeCodePoint(parseState, UNI_REPLACEMENT_CHAR, &tokenBufferIdx, &stringHash)) { jk_error(parseState, @"Internal error: Unable to add UTF8 sequence to internal string buffer. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); stringState = JSONStringStateError; goto finishedParsing; } }
- }
- break;
-
- case JSONStringStateEscapedNeedEscapedUForSurrogate:
- if(currentChar == 'u') { stringState = JSONStringStateEscapedUnicodeSurrogate1; }
- else {
- if((parseState->parseOptionFlags & JKParseOptionLooseUnicode) == 0) { jk_error(parseState, @"Required a second \\u Unicode escape sequence following a surrogate \\u Unicode escape sequence."); stringState = JSONStringStateError; goto finishedParsing; }
- else { stringState = JSONStringStateParsing; atStringCharacter -= 2; if(jk_string_add_unicodeCodePoint(parseState, UNI_REPLACEMENT_CHAR, &tokenBufferIdx, &stringHash)) { jk_error(parseState, @"Internal error: Unable to add UTF8 sequence to internal string buffer. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); stringState = JSONStringStateError; goto finishedParsing; } }
- }
- break;
-
- default: jk_error(parseState, @"Internal error: Unknown stringState. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); stringState = JSONStringStateError; goto finishedParsing; break;
- }
- }
- }
-
- finishedParsing:
-
- if(JK_EXPECT_T(stringState == JSONStringStateFinished)) {
- NSCParameterAssert((parseState->stringBuffer.bytes.ptr + tokenStartIndex) < atStringCharacter);
-
- parseState->token.tokenPtrRange.ptr = parseState->stringBuffer.bytes.ptr + tokenStartIndex;
- parseState->token.tokenPtrRange.length = (atStringCharacter - parseState->token.tokenPtrRange.ptr);
-
- if(JK_EXPECT_T(onlySimpleString)) {
- NSCParameterAssert(((parseState->token.tokenPtrRange.ptr + 1) < endOfBuffer) && (parseState->token.tokenPtrRange.length >= 2UL) && (((parseState->token.tokenPtrRange.ptr + 1) + (parseState->token.tokenPtrRange.length - 2)) < endOfBuffer));
- parseState->token.value.ptrRange.ptr = parseState->token.tokenPtrRange.ptr + 1;
- parseState->token.value.ptrRange.length = parseState->token.tokenPtrRange.length - 2UL;
- } else {
- parseState->token.value.ptrRange.ptr = parseState->token.tokenBuffer.bytes.ptr;
- parseState->token.value.ptrRange.length = tokenBufferIdx;
- }
-
- parseState->token.value.hash = stringHash;
- parseState->token.value.type = JKValueTypeString;
- parseState->atIndex = (atStringCharacter - parseState->stringBuffer.bytes.ptr);
- }
-
- if(JK_EXPECT_F(stringState != JSONStringStateFinished)) { jk_error(parseState, @"Invalid string."); }
- return(JK_EXPECT_T(stringState == JSONStringStateFinished) ? 0 : 1);
- }
- static int jk_parse_number(JKParseState *parseState) {
- NSCParameterAssert((parseState != NULL) && (JK_AT_STRING_PTR(parseState) <= JK_END_STRING_PTR(parseState)));
- const unsigned char *numberStart = JK_AT_STRING_PTR(parseState);
- const unsigned char *endOfBuffer = JK_END_STRING_PTR(parseState);
- const unsigned char *atNumberCharacter = NULL;
- int numberState = JSONNumberStateWholeNumberStart, isFloatingPoint = 0, isNegative = 0, backup = 0;
- size_t startingIndex = parseState->atIndex;
-
- for(atNumberCharacter = numberStart; (JK_EXPECT_T(atNumberCharacter < endOfBuffer)) && (JK_EXPECT_T(!(JK_EXPECT_F(numberState == JSONNumberStateFinished) || JK_EXPECT_F(numberState == JSONNumberStateError)))); atNumberCharacter++) {
- unsigned long currentChar = (unsigned long)(*atNumberCharacter), lowerCaseCC = currentChar | 0x20UL;
-
- switch(numberState) {
- case JSONNumberStateWholeNumberStart: if (currentChar == '-') { numberState = JSONNumberStateWholeNumberMinus; isNegative = 1; break; }
- case JSONNumberStateWholeNumberMinus: if (currentChar == '0') { numberState = JSONNumberStateWholeNumberZero; break; }
- else if( (currentChar >= '1') && (currentChar <= '9')) { numberState = JSONNumberStateWholeNumber; break; }
- else { /* XXX Add error message */ numberState = JSONNumberStateError; break; }
- case JSONNumberStateExponentStart: if( (currentChar == '+') || (currentChar == '-')) { numberState = JSONNumberStateExponentPlusMinus; break; }
- case JSONNumberStateFractionalNumberStart:
- case JSONNumberStateExponentPlusMinus:if(!((currentChar >= '0') && (currentChar <= '9'))) { /* XXX Add error message */ numberState = JSONNumberStateError; break; }
- else { if(numberState == JSONNumberStateFractionalNumberStart) { numberState = JSONNumberStateFractionalNumber; }
- else { numberState = JSONNumberStateExponent; } break; }
- case JSONNumberStateWholeNumberZero:
- case JSONNumberStateWholeNumber: if (currentChar == '.') { numberState = JSONNumberStateFractionalNumberStart; isFloatingPoint = 1; break; }
- case JSONNumberStateFractionalNumber: if (lowerCaseCC == 'e') { numberState = JSONNumberStateExponentStart; isFloatingPoint = 1; break; }
- case JSONNumberStateExponent: if(!((currentChar >= '0') && (currentChar <= '9')) || (numberState == JSONNumberStateWholeNumberZero)) { numberState = JSONNumberStateFinished; backup = 1; break; }
- break;
- default: /* XXX Add error message */ numberState = JSONNumberStateError; break;
- }
- }
-
- parseState->token.tokenPtrRange.ptr = parseState->stringBuffer.bytes.ptr + startingIndex;
- parseState->token.tokenPtrRange.length = (atNumberCharacter - parseState->token.tokenPtrRange.ptr) - backup;
- parseState->atIndex = (parseState->token.tokenPtrRange.ptr + parseState->token.tokenPtrRange.length) - parseState->stringBuffer.bytes.ptr;
-
- if(JK_EXPECT_T(numberState == JSONNumberStateFinished)) {
- unsigned char numberTempBuf[parseState->token.tokenPtrRange.length + 4UL];
- unsigned char *endOfNumber = NULL;
-
- memcpy(numberTempBuf, parseState->token.tokenPtrRange.ptr, parseState->token.tokenPtrRange.length);
- numberTempBuf[parseState->token.tokenPtrRange.length] = 0;
-
- errno = 0;
-
- // Treat "-0" as a floating point number, which is capable of representing negative zeros.
- if(JK_EXPECT_F(parseState->token.tokenPtrRange.length == 2UL) && JK_EXPECT_F(numberTempBuf[1] == '0') && JK_EXPECT_F(isNegative)) { isFloatingPoint = 1; }
-
- if(isFloatingPoint) {
- parseState->token.value.number.doubleValue = strtod((const char *)numberTempBuf, (char **)&endOfNumber); // strtod is documented to return U+2261 (identical to) 0.0 on an underflow error (along with setting errno to ERANGE).
- parseState->token.value.type = JKValueTypeDouble;
- parseState->token.value.ptrRange.ptr = (const unsigned char *)&parseState->token.value.number.doubleValue;
- parseState->token.value.ptrRange.length = sizeof(double);
- parseState->token.value.hash = (JK_HASH_INIT + parseState->token.value.type);
- } else {
- if(isNegative) {
- parseState->token.value.number.longLongValue = strtoll((const char *)numberTempBuf, (char **)&endOfNumber, 10);
- parseState->token.value.type = JKValueTypeLongLong;
- parseState->token.value.ptrRange.ptr = (const unsigned char *)&parseState->token.value.number.longLongValue;
- parseState->token.value.ptrRange.length = sizeof(long long);
- parseState->token.value.hash = (JK_HASH_INIT + parseState->token.value.type) + (JKHash)parseState->token.value.number.longLongValue;
- } else {
- parseState->token.value.number.unsignedLongLongValue = strtoull((const char *)numberTempBuf, (char **)&endOfNumber, 10);
- parseState->token.value.type = JKValueTypeUnsignedLongLong;
- parseState->token.value.ptrRange.ptr = (const unsigned char *)&parseState->token.value.number.unsignedLongLongValue;
- parseState->token.value.ptrRange.length = sizeof(unsigned long long);
- parseState->token.value.hash = (JK_HASH_INIT + parseState->token.value.type) + (JKHash)parseState->token.value.number.unsignedLongLongValue;
- }
- }
-
- if(JK_EXPECT_F(errno != 0)) {
- numberState = JSONNumberStateError;
- if(errno == ERANGE) {
- switch(parseState->token.value.type) {
- case JKValueTypeDouble: jk_error(parseState, @"The value '%s' could not be represented as a 'double' due to %s.", numberTempBuf, (parseState->token.value.number.doubleValue == 0.0) ? "underflow" : "overflow"); break; // see above for == 0.0.
- case JKValueTypeLongLong: jk_error(parseState, @"The value '%s' exceeded the minimum value that could be represented: %lld.", numberTempBuf, parseState->token.value.number.longLongValue); break;
- case JKValueTypeUnsignedLongLong: jk_error(parseState, @"The value '%s' exceeded the maximum value that could be represented: %llu.", numberTempBuf, parseState->token.value.number.unsignedLongLongValue); break;
- default: jk_error(parseState, @"Internal error: Unknown token value type. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); break;
- }
- }
- }
- if(JK_EXPECT_F(endOfNumber != &numberTempBuf[parseState->token.tokenPtrRange.length]) && JK_EXPECT_F(numberState != JSONNumberStateError)) { numberState = JSONNumberStateError; jk_error(parseState, @"The conversion function did not consume all of the number tokens characters."); }
-
- size_t hashIndex = 0UL;
- for(hashIndex = 0UL; hashIndex < parseState->token.value.ptrRange.length; hashIndex++) { parseState->token.value.hash = jk_calculateHash(parseState->token.value.hash, parseState->token.value.ptrRange.ptr[hashIndex]); }
- }
-
- if(JK_EXPECT_F(numberState != JSONNumberStateFinished)) { jk_error(parseState, @"Invalid number."); }
- return(JK_EXPECT_T((numberState == JSONNumberStateFinished)) ? 0 : 1);
- }
- JK_STATIC_INLINE void jk_set_parsed_token(JKParseState *parseState, const unsigned char *ptr, size_t length, JKTokenType type, size_t advanceBy) {
- parseState->token.tokenPtrRange.ptr = ptr;
- parseState->token.tokenPtrRange.length = length;
- parseState->token.type = type;
- parseState->atIndex += advanceBy;
- }
- static size_t jk_parse_is_newline(JKParseState *parseState, const unsigned char *atCharacterPtr) {
- NSCParameterAssert((parseState != NULL) && (atCharacterPtr != NULL) && (atCharacterPtr >= parseState->stringBuffer.bytes.ptr) && (atCharacterPtr < JK_END_STRING_PTR(parseState)));
- const unsigned char *endOfStringPtr = JK_END_STRING_PTR(parseState);
-
- if(JK_EXPECT_F(atCharacterPtr >= endOfStringPtr)) { return(0UL); }
-
- if(JK_EXPECT_F((*(atCharacterPtr + 0)) == '\n')) { return(1UL); }
- if(JK_EXPECT_F((*(atCharacterPtr + 0)) == '\r')) { if((JK_EXPECT_T((atCharacterPtr + 1) < endOfStringPtr)) && ((*(atCharacterPtr + 1)) == '\n')) { return(2UL); } return(1UL); }
- if(parseState->parseOptionFlags & JKParseOptionUnicodeNewlines) {
- if((JK_EXPECT_F((*(atCharacterPtr + 0)) == 0xc2)) && (((atCharacterPtr + 1) < endOfStringPtr) && ((*(atCharacterPtr + 1)) == 0x85))) { return(2UL); }
- if((JK_EXPECT_F((*(atCharacterPtr + 0)) == 0xe2)) && (((atCharacterPtr + 2) < endOfStringPtr) && ((*(atCharacterPtr + 1)) == 0x80) && (((*(atCharacterPtr + 2)) == 0xa8) || ((*(atCharacterPtr + 2)) == 0xa9)))) { return(3UL); }
- }
-
- return(0UL);
- }
- JK_STATIC_INLINE int jk_parse_skip_newline(JKParseState *parseState) {
- size_t newlineAdvanceAtIndex = 0UL;
- if(JK_EXPECT_F((newlineAdvanceAtIndex = jk_parse_is_newline(parseState, JK_AT_STRING_PTR(parseState))) > 0UL)) { parseState->lineNumber++; parseState->atIndex += (newlineAdvanceAtIndex - 1UL); parseState->lineStartIndex = parseState->atIndex + 1UL; return(1); }
- return(0);
- }
- JK_STATIC_INLINE void jk_parse_skip_whitespace(JKParseState *parseState) {
- #ifndef __clang_analyzer__
- NSCParameterAssert((parseState != NULL) && (JK_AT_STRING_PTR(parseState) <= JK_END_STRING_PTR(parseState)));
- const unsigned char *atCharacterPtr = NULL;
- const unsigned char *endOfStringPtr = JK_END_STRING_PTR(parseState);
-
- for(atCharacterPtr = JK_AT_STRING_PTR(parseState); (JK_EXPECT_T((atCharacterPtr = JK_AT_STRING_PTR(parseState)) < endOfStringPtr)); parseState->atIndex++) {
- if(((*(atCharacterPtr + 0)) == ' ') || ((*(atCharacterPtr + 0)) == '\t')) { continue; }
- if(jk_parse_skip_newline(parseState)) { continue; }
- if(parseState->parseOptionFlags & JKParseOptionComments) {
- if((JK_EXPECT_F((*(atCharacterPtr + 0)) == '/')) && (JK_EXPECT_T((atCharacterPtr + 1) < endOfStringPtr))) {
- if((*(atCharacterPtr + 1)) == '/') {
- parseState->atIndex++;
- for(atCharacterPtr = JK_AT_STRING_PTR(parseState); (JK_EXPECT_T((atCharacterPtr = JK_AT_STRING_PTR(parseState)) < endOfStringPtr)); parseState->atIndex++) { if(jk_parse_skip_newline(parseState)) { break; } }
- continue;
- }
- if((*(atCharacterPtr + 1)) == '*') {
- parseState->atIndex++;
- for(atCharacterPtr = JK_AT_STRING_PTR(parseState); (JK_EXPECT_T((atCharacterPtr = JK_AT_STRING_PTR(parseState)) < endOfStringPtr)); parseState->atIndex++) {
- if(jk_parse_skip_newline(parseState)) { continue; }
- if(((*(atCharacterPtr + 0)) == '*') && (((atCharacterPtr + 1) < endOfStringPtr) && ((*(atCharacterPtr + 1)) == '/'))) { parseState->atIndex++; break; }
- }
- continue;
- }
- }
- }
- break;
- }
- #endif
- }
- static int jk_parse_next_token(JKParseState *parseState) {
- NSCParameterAssert((parseState != NULL) && (JK_AT_STRING_PTR(parseState) <= JK_END_STRING_PTR(parseState)));
- const unsigned char *atCharacterPtr = NULL;
- const unsigned char *endOfStringPtr = JK_END_STRING_PTR(parseState);
- unsigned char currentCharacter = 0U;
- int stopParsing = 0;
-
- parseState->prev_atIndex = parseState->atIndex;
- parseState->prev_lineNumber = parseState->lineNumber;
- parseState->prev_lineStartIndex = parseState->lineStartIndex;
-
- jk_parse_skip_whitespace(parseState);
-
- if((JK_AT_STRING_PTR(parseState) == endOfStringPtr)) { stopParsing = 1; }
-
- if((JK_EXPECT_T(stopParsing == 0)) && (JK_EXPECT_T((atCharacterPtr = JK_AT_STRING_PTR(parseState)) < endOfStringPtr))) {
- currentCharacter = *atCharacterPtr;
-
- if(JK_EXPECT_T(currentCharacter == '"')) { if(JK_EXPECT_T((stopParsing = jk_parse_string(parseState)) == 0)) { jk_set_parsed_token(parseState, parseState->token.tokenPtrRange.ptr, parseState->token.tokenPtrRange.length, JKTokenTypeString, 0UL); } }
- else if(JK_EXPECT_T(currentCharacter == ':')) { jk_set_parsed_token(parseState, atCharacterPtr, 1UL, JKTokenTypeSeparator, 1UL); }
- else if(JK_EXPECT_T(currentCharacter == ',')) { jk_set_parsed_token(parseState, atCharacterPtr, 1UL, JKTokenTypeComma, 1UL); }
- else if((JK_EXPECT_T(currentCharacter >= '0') && JK_EXPECT_T(currentCharacter <= '9')) || JK_EXPECT_T(currentCharacter == '-')) { if(JK_EXPECT_T((stopParsing = jk_parse_number(parseState)) == 0)) { jk_set_parsed_token(parseState, parseState->token.tokenPtrRange.ptr, parseState->token.tokenPtrRange.length, JKTokenTypeNumber, 0UL); } }
- else if(JK_EXPECT_T(currentCharacter == '{')) { jk_set_parsed_token(parseState, atCharacterPtr, 1UL, JKTokenTypeObjectBegin, 1UL); }
- else if(JK_EXPECT_T(currentCharacter == '}')) { jk_set_parsed_token(parseState, atCharacterPtr, 1UL, JKTokenTypeObjectEnd, 1UL); }
- else if(JK_EXPECT_T(currentCharacter == '[')) { jk_set_parsed_token(parseState, atCharacterPtr, 1UL, JKTokenTypeArrayBegin, 1UL); }
- else if(JK_EXPECT_T(currentCharacter == ']')) { jk_set_parsed_token(parseState, atCharacterPtr, 1UL, JKTokenTypeArrayEnd, 1UL); }
-
- else if(JK_EXPECT_T(currentCharacter == 't')) { if(!((JK_EXPECT_T((atCharacterPtr + 4UL) < endOfStringPtr)) && (JK_EXPECT_T(atCharacterPtr[1] == 'r')) && (JK_EXPECT_T(atCharacterPtr[2] == 'u')) && (JK_EXPECT_T(atCharacterPtr[3] == 'e')))) { stopParsing = 1; /* XXX Add error message */ } else { jk_set_parsed_token(parseState, atCharacterPtr, 4UL, JKTokenTypeTrue, 4UL); } }
- else if(JK_EXPECT_T(currentCharacter == 'f')) { if(!((JK_EXPECT_T((atCharacterPtr + 5UL) < endOfStringPtr)) && (JK_EXPECT_T(atCharacterPtr[1] == 'a')) && (JK_EXPECT_T(atCharacterPtr[2] == 'l')) && (JK_EXPECT_T(atCharacterPtr[3] == 's')) && (JK_EXPECT_T(atCharacterPtr[4] == 'e')))) { stopParsing = 1; /* XXX Add error message */ } else { jk_set_parsed_token(parseState, atCharacterPtr, 5UL, JKTokenTypeFalse, 5UL); } }
- else if(JK_EXPECT_T(currentCharacter == 'n')) { if(!((JK_EXPECT_T((atCharacterPtr + 4UL) < endOfStringPtr)) && (JK_EXPECT_T(atCharacterPtr[1] == 'u')) && (JK_EXPECT_T(atCharacterPtr[2] == 'l')) && (JK_EXPECT_T(atCharacterPtr[3] == 'l')))) { stopParsing = 1; /* XXX Add error message */ } else { jk_set_parsed_token(parseState, atCharacterPtr, 4UL, JKTokenTypeNull, 4UL); } }
- else { stopParsing = 1; /* XXX Add error message */ }
- }
-
- if(JK_EXPECT_F(stopParsing)) { jk_error(parseState, @"Unexpected token, wanted '{', '}', '[', ']', ',', ':', 'true', 'false', 'null', '\"STRING\"', 'NUMBER'."); }
- return(stopParsing);
- }
- static void jk_error_parse_accept_or3(JKParseState *parseState, int state, NSString *or1String, NSString *or2String, NSString *or3String) {
- NSString *acceptStrings[16];
- int acceptIdx = 0;
- if(state & JKParseAcceptValue) { acceptStrings[acceptIdx++] = or1String; }
- if(state & JKParseAcceptComma) { acceptStrings[acceptIdx++] = or2String; }
- if(state & JKParseAcceptEnd) { acceptStrings[acceptIdx++] = or3String; }
- if(acceptIdx == 1) { jk_error(parseState, @"Expected %@, not '%*.*s'", acceptStrings[0], (int)parseState->token.tokenPtrRange.length, (int)parseState->token.tokenPtrRange.length, parseState->token.tokenPtrRange.ptr); }
- else if(acceptIdx == 2) { jk_error(parseState, @"Expected %@ or %@, not '%*.*s'", acceptStrings[0], acceptStrings[1], (int)parseState->token.tokenPtrRange.length, (int)parseState->token.tokenPtrRange.length, parseState->token.tokenPtrRange.ptr); }
- else if(acceptIdx == 3) { jk_error(parseState, @"Expected %@, %@, or %@, not '%*.*s", acceptStrings[0], acceptStrings[1], acceptStrings[2], (int)parseState->token.tokenPtrRange.length, (int)parseState->token.tokenPtrRange.length, parseState->token.tokenPtrRange.ptr); }
- }
- static void *jk_parse_array(JKParseState *parseState) {
- size_t startingObjectIndex = parseState->objectStack.index;
- int arrayState = JKParseAcceptValueOrEnd, stopParsing = 0;
- void *parsedArray = NULL;
-
- while(JK_EXPECT_T((JK_EXPECT_T(stopParsing == 0)) && (JK_EXPECT_T(parseState->atIndex < parseState->stringBuffer.bytes.length)))) {
- if(JK_EXPECT_F(parseState->objectStack.index > (parseState->objectStack.count - 4UL))) { if(jk_objectStack_resize(&parseState->objectStack, parseState->objectStack.count + 128UL)) { jk_error(parseState, @"Internal error: [array] objectsIndex > %zu, resize failed? %@ line %#ld", (parseState->objectStack.count - 4UL), [NSString stringWithUTF8String:__FILE__], (long)__LINE__); break; } }
-
- if(JK_EXPECT_T((stopParsing = jk_parse_next_token(parseState)) == 0)) {
- void *object = NULL;
- #ifndef NS_BLOCK_ASSERTIONS
- parseState->objectStack.objects[parseState->objectStack.index] = NULL;
- parseState->objectStack.keys [parseState->objectStack.index] = NULL;
- #endif
- switch(parseState->token.type) {
- case JKTokenTypeNumber:
- case JKTokenTypeString:
- case JKTokenTypeTrue:
- case JKTokenTypeFalse:
- case JKTokenTypeNull:
- case JKTokenTypeArrayBegin:
- case JKTokenTypeObjectBegin:
- if(JK_EXPECT_F((arrayState & JKParseAcceptValue) == 0)) { parseState->errorIsPrev = 1; jk_error(parseState, @"Unexpected value."); stopParsing = 1; break; }
- if(JK_EXPECT_F((object = jk_object_for_token(parseState)) == NULL)) { jk_error(parseState, @"Internal error: Object == NULL"); stopParsing = 1; break; } else { parseState->objectStack.objects[parseState->objectStack.index++] = object; arrayState = JKParseAcceptCommaOrEnd; }
- break;
- case JKTokenTypeArrayEnd: if(JK_EXPECT_T(arrayState & JKParseAcceptEnd)) { NSCParameterAssert(parseState->objectStack.index >= startingObjectIndex); parsedArray = (void *)_JKArrayCreate((id *)&parseState->objectStack.objects[startingObjectIndex], (parseState->objectStack.index - startingObjectIndex), parseState->mutableCollections); } else { parseState->errorIsPrev = 1; jk_error(parseState, @"Unexpected ']'."); } stopParsing = 1; break;
- case JKTokenTypeComma: if(JK_EXPECT_T(arrayState & JKParseAcceptComma)) { arrayState = JKParseAcceptValue; } else { parseState->errorIsPrev = 1; jk_error(parseState, @"Unexpected ','."); stopParsing = 1; } break;
- default: parseState->errorIsPrev = 1; jk_error_parse_accept_or3(parseState, arrayState, @"a value", @"a comma", @"a ']'"); stopParsing = 1; break;
- }
- }
- }
-
- if(JK_EXPECT_F(parsedArray == NULL)) { size_t idx = 0UL; for(idx = startingObjectIndex; idx < parseState->objectStack.index; idx++) { if(parseState->objectStack.objects[idx] != NULL) { CFRelease(parseState->objectStack.objects[idx]); parseState->objectStack.objects[idx] = NULL; } } }
- #if !defined(NS_BLOCK_ASSERTIONS)
- else { size_t idx = 0UL; for(idx = startingObjectIndex; idx < parseState->objectStack.index; idx++) { parseState->objectStack.objects[idx] = NULL; parseState->objectStack.keys[idx] = NULL; } }
- #endif
-
- parseState->objectStack.index = startingObjectIndex;
- return(parsedArray);
- }
- static void *jk_create_dictionary(JKParseState *parseState, size_t startingObjectIndex) {
- void *parsedDictionary = NULL;
-
- parseState->objectStack.index--;
-
- parsedDictionary = _JKDictionaryCreate((id *)&parseState->objectStack.keys[startingObjectIndex], (NSUInteger *)&parseState->objectStack.cfHashes[startingObjectIndex], (id *)&parseState->objectStack.objects[startingObjectIndex], (parseState->objectStack.index - startingObjectIndex), parseState->mutableCollections);
-
- return(parsedDictionary);
- }
- static void *jk_parse_dictionary(JKParseState *parseState) {
- size_t startingObjectIndex = parseState->objectStack.index;
- int dictState = JKParseAcceptValueOrEnd, stopParsing = 0;
- void *parsedDictionary = NULL;
-
- while(JK_EXPECT_T((JK_EXPECT_T(stopParsing == 0)) && (JK_EXPECT_T(parseState->atIndex < parseState->stringBuffer.bytes.length)))) {
- if(JK_EXPECT_F(parseState->objectStack.index > (parseState->objectStack.count - 4UL))) { if(jk_objectStack_resize(&parseState->objectStack, parseState->objectStack.count + 128UL)) { jk_error(parseState, @"Internal error: [dictionary] objectsIndex > %zu, resize failed? %@ line #%ld", (parseState->objectStack.count - 4UL), [NSString stringWithUTF8String:__FILE__], (long)__LINE__); break; } }
-
- size_t objectStackIndex = parseState->objectStack.index++;
- parseState->objectStack.keys[objectStackIndex] = NULL;
- parseState->objectStack.objects[objectStackIndex] = NULL;
- void *key = NULL, *object = NULL;
-
- if(JK_EXPECT_T((JK_EXPECT_T(stopParsing == 0)) && (JK_EXPECT_T((stopParsing = jk_parse_next_token(parseState)) == 0)))) {
- switch(parseState->token.type) {
- case JKTokenTypeString:
- if(JK_EXPECT_F((dictState & JKParseAcceptValue) == 0)) { parseState->errorIsPrev = 1; jk_error(parseState, @"Unexpected string."); stopParsing = 1; break; }
- if(JK_EXPECT_F((key = jk_object_for_token(parseState)) == NULL)) { jk_error(parseState, @"Internal error: Key == NULL."); stopParsing = 1; break; }
- else {
- parseState->objectStack.keys[objectStackIndex] = key;
- if(JK_EXPECT_T(parseState->token.value.cacheItem != NULL)) { if(JK_EXPECT_F(parseState->token.value.cacheItem->cfHash == 0UL)) { parseState->token.value.cacheItem->cfHash = CFHash(key); } parseState->objectStack.cfHashes[objectStackIndex] = parseState->token.value.cacheItem->cfHash; }
- else { parseState->objectStack.cfHashes[objectStackIndex] = CFHash(key); }
- }
- break;
-
- case JKTokenTypeObjectEnd: if((JK_EXPECT_T(dictState & JKParseAcceptEnd))) { NSCParameterAssert(parseState->objectStack.index >= startingObjectIndex); parsedDictionary = jk_create_dictionary(parseState, startingObjectIndex); } else { parseState->errorIsPrev = 1; jk_error(parseState, @"Unexpected '}'."); } stopParsing = 1; break;
- case JKTokenTypeComma: if((JK_EXPECT_T(dictState & JKParseAcceptComma))) { dictState = JKParseAcceptValue; parseState->objectStack.index--; continue; } else { parseState->errorIsPrev = 1; jk_error(parseState, @"Unexpected ','."); stopParsing = 1; } break;
-
- default: parseState->errorIsPrev = 1; jk_error_parse_accept_or3(parseState, dictState, @"a \"STRING\"", @"a comma", @"a '}'"); stopParsing = 1; break;
- }
- }
-
- if(JK_EXPECT_T(stopParsing == 0)) {
- if(JK_EXPECT_T((stopParsing = jk_parse_next_token(parseState)) == 0)) { if(JK_EXPECT_F(parseState->token.type != JKTokenTypeSeparator)) { parseState->errorIsPrev = 1; jk_error(parseState, @"Expected ':'."); stopParsing = 1; } }
- }
-
- if((JK_EXPECT_T(stopParsing == 0)) && (JK_EXPECT_T((stopParsing = jk_parse_next_token(parseState)) == 0))) {
- switch(parseState->token.type) {
- case JKTokenTypeNumber:
- case JKTokenTypeString:
- case JKTokenTypeTrue:
- case JKTokenTypeFalse:
- case JKTokenTypeNull:
- case JKTokenTypeArrayBegin:
- case JKTokenTypeObjectBegin:
- if(JK_EXPECT_F((dictState & JKParseAcceptValue) == 0)) { parseState->errorIsPrev = 1; jk_error(parseState, @"Unexpected value."); stopParsing = 1; break; }
- if(JK_EXPECT_F((object = jk_object_for_token(parseState)) == NULL)) { jk_error(parseState, @"Internal error: Object == NULL."); stopParsing = 1; break; } else { parseState->objectStack.objects[objectStackIndex] = object; dictState = JKParseAcceptCommaOrEnd; }
- break;
- default: parseState->errorIsPrev = 1; jk_error_parse_accept_or3(parseState, dictState, @"a value", @"a comma", @"a '}'"); stopParsing = 1; break;
- }
- }
- }
-
- if(JK_EXPECT_F(parsedDictionary == NULL)) { size_t idx = 0UL; for(idx = startingObjectIndex; idx < parseState->objectStack.index; idx++) { if(parseState->objectStack.keys[idx] != NULL) { CFRelease(parseState->objectStack.keys[idx]); parseState->objectStack.keys[idx] = NULL; } if(parseState->objectStack.objects[idx] != NULL) { CFRelease(parseState->objectStack.objects[idx]); parseState->objectStack.objects[idx] = NULL; } } }
- #if !defined(NS_BLOCK_ASSERTIONS)
- else { size_t idx = 0UL; for(idx = startingObjectIndex; idx < parseState->objectStack.index; idx++) { parseState->objectStack.objects[idx] = NULL; parseState->objectStack.keys[idx] = NULL; } }
- #endif
-
- parseState->objectStack.index = startingObjectIndex;
- return(parsedDictionary);
- }
- static id json_parse_it(JKParseState *parseState) {
- id parsedObject = NULL;
- int stopParsing = 0;
-
- while((JK_EXPECT_T(stopParsing == 0)) && (JK_EXPECT_T(parseState->atIndex < parseState->stringBuffer.bytes.length))) {
- if((JK_EXPECT_T(stopParsing == 0)) && (JK_EXPECT_T((stopParsing = jk_parse_next_token(parseState)) == 0))) {
- switch(parseState->token.type) {
- case JKTokenTypeArrayBegin:
- case JKTokenTypeObjectBegin: parsedObject = [(id)jk_object_for_token(parseState) autorelease]; stopParsing = 1; break;
- default: jk_error(parseState, @"Expected either '[' or '{'."); stopParsing = 1; break;
- }
- }
- }
-
- NSCParameterAssert((parseState->objectStack.index == 0) && (JK_AT_STRING_PTR(parseState) <= JK_END_STRING_PTR(parseState)));
-
- if((parsedObject == NULL) && (JK_AT_STRING_PTR(parseState) == JK_END_STRING_PTR(parseState))) { jk_error(parseState, @"Reached the end of the buffer."); }
- if(parsedObject == NULL) { jk_error(parseState, @"Unable to parse JSON."); }
-
- if((parsedObject != NULL) && (JK_AT_STRING_PTR(parseState) < JK_END_STRING_PTR(parseState))) {
- jk_parse_skip_whitespace(parseState);
- if((parsedObject != NULL) && ((parseState->parseOptionFlags & JKParseOptionPermitTextAfterValidJSON) == 0) && (JK_AT_STRING_PTR(parseState) < JK_END_STRING_PTR(parseState))) {
- jk_error(parseState, @"A valid JSON object was parsed but there were additional non-white-space characters remaining.");
- parsedObject = NULL;
- }
- }
-
- return(parsedObject);
- }
- ////////////
- #pragma mark -
- #pragma mark Object cache
- // This uses a Galois Linear Feedback Shift Register (LFSR) PRNG to pick which item in the cache to age. It has a period of (2^32)-1.
- // NOTE: A LFSR *MUST* be initialized to a non-zero value and must always have a non-zero value. The LFSR is initalized to 1 in -initWithParseOptions:
- JK_STATIC_INLINE void jk_cache_age(JKParseState *parseState) {
- NSCParameterAssert((parseState != NULL) && (parseState->cache.prng_lfsr != 0U));
- parseState->cache.prng_lfsr = (parseState->cache.prng_lfsr >> 1) ^ ((0U - (parseState->cache.prng_lfsr & 1U)) & 0x80200003U);
- parseState->cache.age[parseState->cache.prng_lfsr & (parseState->cache.count - 1UL)] >>= 1;
- }
- // The object cache is nothing more than a hash table with open addressing collision resolution that is bounded by JK_CACHE_PROBES attempts.
- //
- // The hash table is a linear C array of JKTokenCacheItem. The terms "item" and "bucket" are synonymous with the index in to the cache array, i.e. cache.items[bucket].
- //
- // Items in the cache have an age associated with them. An items age is incremented using saturating unsigned arithmetic and decremeted using unsigned right shifts.
- // Thus, an items age is managed using an AIMD policy- additive increase, multiplicative decrease. All age calculations and manipulations are branchless.
- // The primitive C type MUST be unsigned. It is currently a "char", which allows (at a minimum and in practice) 8 bits.
- //
- // A "useable bucket" is a bucket that is not in use (never populated), or has an age == 0.
- //
- // When an item is found in the cache, it's age is incremented.
- // If a useable bucket hasn't been found, the current item (bucket) is aged along with two random items.
- //
- // If a value is not found in the cache, and no useable bucket has been found, that value is not added to the cache.
- static void *jk_cachedObjects(JKParseState *parseState) {
- unsigned long bucket = parseState->token.value.hash & (parseState->cache.count - 1UL), setBucket = 0UL, useableBucket = 0UL, x = 0UL;
- void *parsedAtom = NULL;
-
- if(JK_EXPECT_F(parseState->token.value.ptrRange.length == 0UL) && JK_EXPECT_T(parseState->token.value.type == JKValueTypeString)) { return(@""); }
-
- for(x = 0UL; x < JK_CACHE_PROBES; x++) {
- if(JK_EXPECT_F(parseState->cache.items[bucket].object == NULL)) { setBucket = 1UL; useableBucket = bucket; break; }
-
- if((JK_EXPECT_T(parseState->cache.items[bucket].hash == parseState->token.value.hash)) && (JK_EXPECT_T(parseState->cache.items[bucket].size == parseState->token.value.ptrRange.length)) && (JK_EXPECT_T(parseState->cache.items[bucket].type == parseState->token.value.type)) && (JK_EXPECT_T(parseState->cache.items[bucket].bytes != NULL)) && (JK_EXPECT_T(memcmp(parseState->cache.items[bucket].bytes, parseState->token.value.ptrRange.ptr, parseState->token.value.ptrRange.length) == 0U))) {
- parseState->cache.age[bucket] = (((uint32_t)parseState->cache.age[bucket]) + 1U) - (((((uint32_t)parseState->cache.age[bucket]) + 1U) >> 31) ^ 1U);
- parseState->token.value.cacheItem = &parseState->cache.items[bucket];
- NSCParameterAssert(parseState->cache.items[bucket].object != NULL);
- return((void *)CFRetain(parseState->cache.items[bucket].object));
- } else {
- if(JK_EXPECT_F(setBucket == 0UL) && JK_EXPECT_F(parseState->cache.age[bucket] == 0U)) { setBucket = 1UL; useableBucket = bucket; }
- if(JK_EXPECT_F(setBucket == 0UL)) { parseState->cache.age[bucket] >>= 1; jk_cache_age(parseState); jk_cache_age(parseState); }
- // This is the open addressing function. The values length and type are used as a form of "double hashing" to distribute values with the same effective value hash across different object cache buckets.
- // The values type is a prime number that is relatively coprime to the other primes in the set of value types and the number of hash table buckets.
- bucket = (parseState->token.value.hash + (parseState->token.value.ptrRange.length * (x + 1UL)) + (parseState->token.value.type * (x + 1UL)) + (3UL * (x + 1UL))) & (parseState->cache.count - 1UL);
- }
- }
-
- switch(parseState->token.value.type) {
- case JKValueTypeString: parsedAtom = (void *)CFStringCreateWithBytes(NULL, parseState->token.value.ptrRange.ptr, parseState->token.value.ptrRange.length, kCFStringEncodingUTF8, 0); break;
- case JKValueTypeLongLong: parsedAtom = (void *)CFNumberCreate(NULL, kCFNumberLongLongType, &parseState->token.value.number.longLongValue); break;
- case JKValueTypeUnsignedLongLong:
- if(parseState->token.value.number.unsignedLongLongValue <= LLONG_MAX) { parsedAtom = (void *)CFNumberCreate(NULL, kCFNumberLongLongType, &parseState->token.value.number.unsignedLongLongValue); }
- else { parsedAtom = (void *)parseState->objCImpCache.NSNumberInitWithUnsignedLongLong(parseState->objCImpCache.NSNumberAlloc(parseState->objCImpCache.NSNumberClass, @selector(alloc)), @selector(initWithUnsignedLongLong:), parseState->token.value.number.unsignedLongLongValue); }
- break;
- case JKValueTypeDouble: parsedAtom = (void *)CFNumberCreate(NULL, kCFNumberDoubleType, &parseState->token.value.number.doubleValue); break;
- default: jk_error(parseState, @"Internal error: Unknown token value type. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); break;
- }
-
- if(JK_EXPECT_T(setBucket) && (JK_EXPECT_T(parsedAtom != NULL))) {
- bucket = useableBucket;
- if(JK_EXPECT_T((parseState->cache.items[bucket].object != NULL))) { CFRelease(parseState->cache.items[bucket].object); parseState->cache.items[bucket].object = NULL; }
-
- if(JK_EXPECT_T((parseState->cache.items[bucket].bytes = (unsigned char *)reallocf(parseState->cache.items[bucket].bytes, parseState->token.value.ptrRange.length)) != NULL)) {
- memcpy(parseState->cache.items[bucket].bytes, parseState->token.value.ptrRange.ptr, parseState->token.value.ptrRange.length);
- parseState->cache.items[bucket].object = (void *)CFRetain(parsedAtom);
- parseState->cache.items[bucket].hash = parseState->token.value.hash;
- parseState->cache.items[bucket].cfHash = 0UL;
- parseState->cache.items[bucket].size = parseState->token.value.ptrRange.length;
- parseState->cache.items[bucket].type = parseState->token.value.type;
- parseState->token.value.cacheItem = &parseState->cache.items[bucket];
- parseState->cache.age[bucket] = JK_INIT_CACHE_AGE;
- } else { // The realloc failed, so clear the appropriate fields.
- parseState->cache.items[bucket].hash = 0UL;
- parseState->cache.items[bucket].cfHash = 0UL;
- parseState->cache.items[bucket].size = 0UL;
- parseState->cache.items[bucket].type = 0UL;
- }
- }
-
- return(parsedAtom);
- }
- static void *jk_object_for_token(JKParseState *parseState) {
- void *parsedAtom = NULL;
-
- parseState->token.value.cacheItem = NULL;
- switch(parseState->token.type) {
- case JKTokenTypeString: parsedAtom = jk_cachedObjects(parseState); break;
- case JKTokenTypeNumber: parsedAtom = jk_cachedObjects(parseState); break;
- case JKTokenTypeObjectBegin: parsedAtom = jk_parse_dictionary(parseState); break;
- case JKTokenTypeArrayBegin: parsedAtom = jk_parse_array(parseState); break;
- case JKTokenTypeTrue: parsedAtom = (void *)kCFBooleanTrue; break;
- case JKTokenTypeFalse: parsedAtom = (void *)kCFBooleanFalse; break;
- case JKTokenTypeNull: parsedAtom = (void *)kCFNull; break;
- default: jk_error(parseState, @"Internal error: Unknown token type. %@ line #%ld", [NSString stringWithUTF8String:__FILE__], (long)__LINE__); break;
- }
-
- return(parsedAtom);
- }
- #pragma mark -
- @implementation JSONDecoder
- + (id)decoder
- {
- return([self decoderWithParseOptions:JKParseOptionStrict]);
- }
- + (id)decoderWithParseOptions:(JKParseOptionFlags)parseOptionFlags
- {
- return([[[self alloc] initWithParseOptions:parseOptionFlags] autorelease]);
- }
- - (id)init
- {
- return([self initWithParseOptions:JKParseOptionStrict]);
- }
- - (id)initWithParseOptions:(JKParseOptionFlags)parseOptionFlags
- {
- if((self = [super init]) == NULL) { return(NULL); }
-
- if(parseOptionFlags & ~JKParseOptionValidFlags) { [self autorelease]; [NSException raise:NSInvalidArgumentException format:@"Invalid parse options."]; }
-
- if((parseState = (JKParseState *)calloc(1UL, sizeof(JKParseState))) == NULL) { goto errorExit; }
-
- parseState->parseOptionFlags = parseOptionFlags;
-
- parseState->token.tokenBuffer.roundSizeUpToMultipleOf = 4096UL;
- parseState->objectStack.roundSizeUpToMultipleOf = 2048UL;
-
- parseState->objCImpCache.NSNumberClass = _jk_NSNumberClass;
- parseState->objCImpCache.NSNumberAlloc = _jk_NSNumberAllocImp;
- parseState->objCImpCache.NSNumberInitWithUnsignedLongLong = _jk_NSNumberInitWithUnsignedLongLongImp;
-
- parseState->cache.prng_lfsr = 1U;
- parseState->cache.count = JK_CACHE_SLOTS;
- if((parseState->cache.items = (JKTokenCacheItem *)calloc(1UL, sizeof(JKTokenCacheItem) * parseState->cache.count)) == NULL) { goto errorExit; }
-
- return(self);
-
- errorExit:
- if(self) { [self autorelease]; self = NULL; }
- return(NULL);
- }
- // This is here primarily to support the NSString and NSData convenience functions so the autoreleased JSONDecoder can release most of its resources before the pool pops.
- static void _JSONDecoderCleanup(JSONDecoder *decoder) {
- if((decoder != NULL) && (decoder->parseState != NULL)) {
- jk_managedBuffer_release(&decoder->parseState->token.tokenBuffer);
- jk_objectStack_release(&decoder->parseState->objectStack);
-
- [decoder clearCache];
- if(decoder->parseState->cache.items != NULL) { free(decoder->parseState->cache.items); decoder->parseState->cache.items = NULL; }
-
- free(decoder->parseState); decoder->parseState = NULL;
- }
- }
- - (void)dealloc
- {
- _JSONDecoderCleanup(self);
- [super dealloc];
- }
- - (void)clearCache
- {
- if(JK_EXPECT_T(parseState != NULL)) {
- if(JK_EXPECT_T(parseState->cache.items != NULL)) {
- size_t idx = 0UL;
- for(idx = 0UL; idx < parseState->cache.count; idx++) {
- if(JK_EXPECT_T(parseState->cache.items[idx].object != NULL)) { CFRelease(parseState->cache.items[idx].object); parseState->cache.items[idx].object = NULL; }
- if(JK_EXPECT_T(parseState->cache.items[idx].bytes != NULL)) { free(parseState->cache.items[idx].bytes); parseState->cache.items[idx].bytes = NULL; }
- memset(&parseState->cache.items[idx], 0, sizeof(JKTokenCacheItem));
- parseState->cache.age[idx] = 0U;
- }
- }
- }
- }
- // This needs to be completely rewritten.
- static id _JKParseUTF8String(JKParseState *parseState, BOOL mutableCollections, const unsigned char *string, size_t length, NSError **error) {
- NSCParameterAssert((parseState != NULL) && (string != NULL) && (parseState->cache.prng_lfsr != 0U));
- parseState->stringBuffer.bytes.ptr = string;
- parseState->stringBuffer.bytes.length = length;
- parseState->atIndex = 0UL;
- parseState->lineNumber = 1UL;
- parseState->lineStartIndex = 0UL;
- parseState->prev_atIndex = 0UL;
- parseState->prev_lineNumber = 1UL;
- parseState->prev_lineStartIndex = 0UL;
- parseState->error = NULL;
- parseState->errorIsPrev = 0;
- parseState->mutableCollections = (mutableCollections == NO) ? NO : YES;
-
- unsigned char stackTokenBuffer[JK_TOKENBUFFER_SIZE] JK_ALIGNED(64);
- jk_managedBuffer_setToStackBuffer(&parseState->token.tokenBuffer, stackTokenBuffer, sizeof(stackTokenBuffer));
-
- void *stackObjects [JK_STACK_OBJS] JK_ALIGNED(64);
- void *stackKeys [JK_STACK_OBJS] JK_ALIGNED(64);
- CFHashCode stackCFHashes[JK_STACK_OBJS] JK_ALIGNED(64);
- jk_objectStack_setToStackBuffer(&parseState->objectStack, stackObjects, stackKeys, stackCFHashes, JK_STACK_OBJS);
-
- id parsedJSON = json_parse_it(parseState);
-
- if((error != NULL) && (parseState->error != NULL)) { *error = parseState->error; }
-
- jk_managedBuffer_release(&parseState->token.tokenBuffer);
- jk_objectStack_release(&parseState->objectStack);
-
- parseState->stringBuffer.bytes.ptr = NULL;
- parseState->stringBuffer.bytes.length = 0UL;
- parseState->atIndex = 0UL;
- parseState->lineNumber = 1UL;
- parseState->lineStartIndex = 0UL;
- parseState->prev_atIndex = 0UL;
- parseState->prev_lineNumber = 1UL;
- parseState->prev_lineStartIndex = 0UL;
- parseState->error = NULL;
- parseState->errorIsPrev = 0;
- parseState->mutableCollections = NO;
-
- return(parsedJSON);
- }
- ////////////
- #pragma mark Deprecated as of v1.4
- ////////////
- // Deprecated in JSONKit v1.4. Use objectWithUTF8String:length: instead.
- - (id)parseUTF8String:(const unsigned char *)string length:(size_t)length
- {
- return([self objectWithUTF8String:string length:length error:NULL]);
- }
- // Deprecated in JSONKit v1.4. Use objectWithUTF8String:length:error: instead.
- - (id)parseUTF8String:(const unsigned char *)string length:(size_t)length error:(NSError **)error
- {
- return([self objectWithUTF8String:string length:length error:error]);
- }
- // Deprecated in JSONKit v1.4. Use objectWithData: instead.
- - (id)parseJSONData:(NSData *)jsonData
- {
- return([self objectWithData:jsonData error:NULL]);
- }
- // Deprecated in JSONKit v1.4. Use objectWithData:error: instead.
- - (id)parseJSONData:(NSData *)jsonData error:(NSError **)error
- {
- return([self objectWithData:jsonData error:error]);
- }
- ////////////
- #pragma mark Methods that return immutable collection objects
- ////////////
- - (id)objectWithUTF8String:(const unsigned char *)string length:(NSUInteger)length
- {
- return([self objectWithUTF8String:string length:length error:NULL]);
- }
- - (id)objectWithUTF8String:(const unsigned char *)string length:(NSUInteger)length error:(NSError **)error
- {
- if(parseState == NULL) { [NSException raise:NSInternalInconsistencyException format:@"parseState is NULL."]; }
- if(string == NULL) { [NSException raise:NSInvalidArgumentException format:@"The string argument is NULL."]; }
-
- return(_JKParseUTF8String(parseState, NO, string, (size_t)length, error));
- }
- - (id)objectWithData:(NSData *)jsonData
- {
- return([self objectWithData:jsonData error:NULL]);
- }
- - (id)objectWithData:(NSData *)jsonData error:(NSError **)error
- {
- if(jsonData == NULL) { [NSException raise:NSInvalidArgumentException format:@"The jsonData argument is NULL."]; }
- return([self objectWithUTF8String:(const unsigned char *)[jsonData bytes] length:[jsonData length] error:error]);
- }
- ////////////
- #pragma mark Methods that return mutable collection objects
- ////////////
- - (id)mutableObjectWithUTF8String:(const unsigned char *)string length:(NSUInteger)length
- {
- return([self mutableObjectWithUTF8String:string length:length error:NULL]);
- }
- - (id)mutableObjectWithUTF8String:(const unsigned char *)string length:(NSUInteger)length error:(NSError **)error
- {
- if(parseState == NULL) { [NSException raise:NSInternalInconsistencyException format:@"parseState is NULL."]; }
- if(string == NULL) { [NSException raise:NSInvalidArgumentException format:@"The string argument is NULL."]; }
-
- return(_JKParseUTF8String(parseState, YES, string, (size_t)length, error));
- }
- - (id)mutableObjectWithData:(NSData *)jsonData
- {
- return([self mutableObjectWithData:jsonData error:NULL]);
- }
- - (id)mutableObjectWithData:(NSData *)jsonData error:(NSError **)error
- {
- if(jsonData == NULL) { [NSException raise:NSInvalidArgumentException format:@"The jsonData argument is NULL."]; }
- return([self mutableObjectWithUTF8String:(const unsigned char *)[jsonData bytes] length:[jsonData length] error:error]);
- }
- @end
- /*
- The NSString and NSData convenience methods need a little bit of explanation.
-
- Prior to JSONKit v1.4, the NSString -objectFromJSONStringWithParseOptions:error: method looked like
-
- const unsigned char *utf8String = (const unsigned char *)[self UTF8String];
- if(utf8String == NULL) { return(NULL); }
- size_t utf8Length = strlen((const char *)utf8String);
- return([[JSONDecoder decoderWithParseOptions:parseOptionFlags] parseUTF8String:utf8String length:utf8Length error:error]);
-
- This changed with v1.4 to a more complicated method. The reason for this is to keep the amount of memory that is
- allocated, but not yet freed because it is dependent on the autorelease pool to pop before it can be reclaimed.
-
- In the simpler v1.3 code, this included all the bytes used to store the -UTF8String along with the JSONDecoder and all its overhead.
-
- Now we use an autoreleased CFMutableData that is sized to the UTF8 length of the NSString in question and is used to hold the UTF8
- conversion of said string.
-
- Once parsed, the CFMutableData has its length set to 0. This should, hopefully, allow the CFMutableData to realloc and/or free
- the buffer.
-
- Another change made was a slight modification to JSONDecoder so that most of the cleanup work that was done in -dealloc was moved
- to a private, internal function. These convenience routines keep the pointer to the autoreleased JSONDecoder and calls
- _JSONDecoderCleanup() to early release the decoders resources since we already know that particular decoder is not going to be used
- again.
-
- If everything goes smoothly, this will most likely result in perhaps a few hundred bytes that are allocated but waiting for the
- autorelease pool to pop. This is compared to the thousands and easily hundreds of thousands of bytes that would have been in
- autorelease limbo. It's more complicated for us, but a win for the user.
-
- Autorelease objects are used in case things don't go smoothly. By having them autoreleased, we effectively guarantee that our
- requirement to -release the object is always met, not matter what goes wrong. The downside is having a an object or two in
- autorelease limbo, but we've done our best to minimize that impact, so it all balances out.
- */
- @implementation NSString (JSONKitDeserializing)
- static id _NSStringObjectFromJSONString(NSString *jsonString, JKParseOptionFlags parseOptionFlags, NSError **error, BOOL mutableCollection) {
- id returnObject = NULL;
- CFMutableDataRef mutableData = NULL;
- JSONDecoder *decoder = NULL;
-
- CFIndex stringLength = CFStringGetLength((CFStringRef)jsonString);
- NSUInteger stringUTF8Length = [jsonString lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
-
- if((mutableData = (CFMutableDataRef)[(id)CFDataCreateMutable(NULL, (NSUInteger)stringUTF8Length) autorelease]) != NULL) {
- UInt8 *utf8String = CFDataGetMutableBytePtr(mutableData);
- CFIndex usedBytes = 0L, convertedCount = 0L;
-
- convertedCount = CFStringGetBytes((CFStringRef)jsonString, CFRangeMake(0L, stringLength), kCFStringEncodingUTF8, '?', NO, utf8String, (NSUInteger)stringUTF8Length, &usedBytes);
- if(JK_EXPECT_F(convertedCount != stringLength) || JK_EXPECT_F(usedBytes < 0L)) { if(error != NULL) { *error = [NSError errorWithDomain:@"JKErrorDomain" code:-1L userInfo:[NSDictionary dictionaryWithObject:@"An error occurred converting the contents of a NSString to UTF8." forKey:NSLocalizedDescriptionKey]]; } goto exitNow; }
-
- if(mutableCollection == NO) { returnObject = [(decoder = [JSONDecoder decoderWithParseOptions:parseOptionFlags]) objectWithUTF8String:(const unsigned char *)utf8String length:(size_t)usedBytes error:error]; }
- else { returnObject = [(decoder = [JSONDecoder decoderWithParseOptions:parseOptionFlags]) mutableObjectWithUTF8String:(const unsigned char *)utf8String length:(size_t)usedBytes error:error]; }
- }
-
- exitNow:
- if(mutableData != NULL) { CFDataSetLength(mutableData, 0L); }
- if(decoder != NULL) { _JSONDecoderCleanup(decoder); }
- return(returnObject);
- }
- - (id)objectFromJSONString
- {
- return([self objectFromJSONStringWithParseOptions:JKParseOptionStrict error:NULL]);
- }
- - (id)objectFromJSONStringWithParseOptions:(JKParseOptionFlags)parseOptionFlags
- {
- return([self objectFromJSONStringWithParseOptions:parseOptionFlags error:NULL]);
- }
- - (id)objectFromJSONStringWithParseOptions:(JKParseOptionFlags)parseOptionFlags error:(NSError **)error
- {
- return(_NSStringObjectFromJSONString(self, parseOptionFlags, error, NO));
- }
- - (id)mutableObjectFromJSONString
- {
- return([self mutableObjectFromJSONStringWithParseOptions:JKParseOptionStrict error:NULL]);
- }
- - (id)mutableObjectFromJSONStringWithParseOptions:(JKParseOptionFlags)parseOptionFlags
- {
- return([self mutableObjectFromJSONStringWithParseOptions:parseOptionFlags error:NULL]);
- }
- - (id)mutableObjectFromJSONStringWithParseOptions:(JKParseOptionFlags)parseOptionFlags error:(NSError **)error
- {
- return(_NSStringObjectFromJSONString(self, parseOptionFlags, error, YES));
- }
- @end
- @implementation NSData (JSONKitDeserializing)
- - (id)objectFromJSONData
- {
- return([self objectFromJSONDataWithParseOptions:JKParseOptionStrict error:NULL]);
- }
- - (id)objectFromJSONDataWithParseOptions:(JKParseOptionFlags)parseOptionFlags
- {
- return([self objectFromJSONDataWithParseOptions:parseOptionFlags error:NULL]);
- }
- - (id)objectFromJSONDataWithParseOptions:(JKParseOptionFlags)parseOptionFlags error:(NSError **)error
- {
- JSONDecoder *decoder = NULL;
- id returnObject = [(decoder = [JSONDecoder decoderWithParseOptions:parseOptionFlags]) objectWithData:self error:error];
- if(decoder != NULL) { _JSONDecoderCleanup(decoder); }
- return(returnObject);
- }
- - (id)mutableObjectFromJSONData
- {
- return([self mutableObjectFromJSONDataWithParseOptions:JKParseOptionStrict error:NULL]);
- }
- - (id)mutableObjectFromJSONDataWithParseOptions:(JKParseOptionFlags)parseOptionFlags
- {
- return([self mutableObjectFromJSONDataWithParseOptions:parseOptionFlags error:NULL]);
- }
- - (id)mutableObjectFromJSONDataWithParseOptions:(JKParseOptionFlags)parseOptionFlags error:(NSError **)error
- {
- JSONDecoder *decoder = NULL;
- id returnObject = [(decoder = [JSONDecoder decoderWithParseOptions:parseOptionFlags]) mutableObjectWithData:self error:error];
- if(decoder != NULL) { _JSONDecoderCleanup(decoder); }
- return(returnObject);
- }
- @end
- ////////////
- #pragma mark -
- #pragma mark Encoding / deserializing functions
- static void jk_encode_error(JKEncodeState *encodeState, NSString *format, ...) {
- NSCParameterAssert((encodeState != NULL) && (format != NULL));
-
- va_list varArgsList;
- va_start(varArgsList, format);
- NSString *formatString = [[[NSString alloc] initWithFormat:format arguments:varArgsList] autorelease];
- va_end(varArgsList);
-
- if(encodeState->error == NULL) {
- encodeState->error = [NSError errorWithDomain:@"JKErrorDomain" code:-1L userInfo:
- [NSDictionary dictionaryWithObjectsAndKeys:
- formatString, NSLocalizedDescriptionKey,
- NULL]];
- }
- }
- JK_STATIC_INLINE void jk_encode_updateCache(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object) {
- NSCParameterAssert(encodeState != NULL);
- if(JK_EXPECT_T(cacheSlot != NULL)) {
- NSCParameterAssert((object != NULL) && (startingAtIndex <= encodeState->atIndex));
- cacheSlot->object = object;
- cacheSlot->offset = startingAtIndex;
- cacheSlot->length = (size_t)(encodeState->atIndex - startingAtIndex);
- }
- }
- static int jk_encode_printf(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object, const char *format, ...) {
- va_list varArgsList, varArgsListCopy;
- va_start(varArgsList, format);
- va_copy(varArgsListCopy, varArgsList);
-
- NSCParameterAssert((encodeState != NULL) && (encodeState->atIndex < encodeState->stringBuffer.bytes.length) && (startingAtIndex <= encodeState->atIndex) && (format != NULL));
-
- ssize_t formattedStringLength = 0L;
- int returnValue = 0;
-
- if(JK_EXPECT_T((formattedStringLength = vsnprintf((char *)&encodeState->stringBuffer.bytes.ptr[encodeState->atIndex], (encodeState->stringBuffer.bytes.length - encodeState->atIndex), format, varArgsList)) >= (ssize_t)(encodeState->stringBuffer.bytes.length - encodeState->atIndex))) {
- NSCParameterAssert(((encodeState->atIndex + (formattedStringLength * 2UL) + 256UL) > encodeState->stringBuffer.bytes.length));
- if(JK_EXPECT_F(((encodeState->atIndex + (formattedStringLength * 2UL) + 256UL) > encodeState->stringBuffer.bytes.length)) && JK_EXPECT_F((jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + (formattedStringLength * 2UL)+ 4096UL) == NULL))) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); returnValue = 1; goto exitNow; }
- if(JK_EXPECT_F((formattedStringLength = vsnprintf((char *)&encodeState->stringBuffer.bytes.ptr[encodeState->atIndex], (encodeState->stringBuffer.bytes.length - encodeState->atIndex), format, varArgsListCopy)) >= (ssize_t)(encodeState->stringBuffer.bytes.length - encodeState->atIndex))) { jk_encode_error(encodeState, @"vsnprintf failed unexpectedly."); returnValue = 1; goto exitNow; }
- }
-
- exitNow:
- va_end(varArgsList);
- va_end(varArgsListCopy);
- if(JK_EXPECT_T(returnValue == 0)) { encodeState->atIndex += formattedStringLength; jk_encode_updateCache(encodeState, cacheSlot, startingAtIndex, object); }
- return(returnValue);
- }
- static int jk_encode_write(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object, const char *format) {
- NSCParameterAssert((encodeState != NULL) && (encodeState->atIndex < encodeState->stringBuffer.bytes.length) && (startingAtIndex <= encodeState->atIndex) && (format != NULL));
- if(JK_EXPECT_F(((encodeState->atIndex + strlen(format) + 256UL) > encodeState->stringBuffer.bytes.length)) && JK_EXPECT_F((jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + strlen(format) + 1024UL) == NULL))) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); }
-
- size_t formatIdx = 0UL;
- for(formatIdx = 0UL; format[formatIdx] != 0; formatIdx++) { NSCParameterAssert(encodeState->atIndex < encodeState->stringBuffer.bytes.length); encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = format[formatIdx]; }
- jk_encode_updateCache(encodeState, cacheSlot, startingAtIndex, object);
- return(0);
- }
- static int jk_encode_writePrettyPrintWhiteSpace(JKEncodeState *encodeState) {
- NSCParameterAssert((encodeState != NULL) && ((encodeState->serializeOptionFlags & JKSerializeOptionPretty) != 0UL));
- if(JK_EXPECT_F((encodeState->atIndex + ((encodeState->depth + 1UL) * 2UL) + 16UL) > encodeState->stringBuffer.bytes.length) && JK_EXPECT_T(jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + ((encodeState->depth + 1UL) * 2UL) + 4096UL) == NULL)) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); }
- encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\n';
- size_t depthWhiteSpace = 0UL;
- for(depthWhiteSpace = 0UL; depthWhiteSpace < (encodeState->depth * 2UL); depthWhiteSpace++) { NSCParameterAssert(encodeState->atIndex < encodeState->stringBuffer.bytes.length); encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = ' '; }
- return(0);
- }
- static int jk_encode_write1slow(JKEncodeState *encodeState, ssize_t depthChange, const char *format) {
- NSCParameterAssert((encodeState != NULL) && (encodeState->atIndex < encodeState->stringBuffer.bytes.length) && (format != NULL) && ((depthChange >= -1L) && (depthChange <= 1L)) && ((encodeState->depth == 0UL) ? (depthChange >= 0L) : 1) && ((encodeState->serializeOptionFlags & JKSerializeOptionPretty) != 0UL));
- if(JK_EXPECT_F((encodeState->atIndex + ((encodeState->depth + 1UL) * 2UL) + 16UL) > encodeState->stringBuffer.bytes.length) && JK_EXPECT_F(jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + ((encodeState->depth + 1UL) * 2UL) + 4096UL) == NULL)) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); }
- encodeState->depth += depthChange;
- if(JK_EXPECT_T(format[0] == ':')) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = format[0]; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = ' '; }
- else {
- if(JK_EXPECT_F(depthChange == -1L)) { if(JK_EXPECT_F(jk_encode_writePrettyPrintWhiteSpace(encodeState))) { return(1); } }
- encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = format[0];
- if(JK_EXPECT_T(depthChange != -1L)) { if(JK_EXPECT_F(jk_encode_writePrettyPrintWhiteSpace(encodeState))) { return(1); } }
- }
- NSCParameterAssert(encodeState->atIndex < encodeState->stringBuffer.bytes.length);
- return(0);
- }
- static int jk_encode_write1fast(JKEncodeState *encodeState, ssize_t depthChange JK_UNUSED_ARG, const char *format) {
- NSCParameterAssert((encodeState != NULL) && (encodeState->atIndex < encodeState->stringBuffer.bytes.length) && ((encodeState->serializeOptionFlags & JKSerializeOptionPretty) == 0UL));
- if(JK_EXPECT_T((encodeState->atIndex + 4UL) < encodeState->stringBuffer.bytes.length)) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = format[0]; }
- else { return(jk_encode_write(encodeState, NULL, 0UL, NULL, format)); }
- return(0);
- }
- static int jk_encode_writen(JKEncodeState *encodeState, JKEncodeCache *cacheSlot, size_t startingAtIndex, id object, const char *format, size_t length) {
- NSCParameterAssert((encodeState != NULL) && (encodeState->atIndex < encodeState->stringBuffer.bytes.length) && (startingAtIndex <= encodeState->atIndex));
- if(JK_EXPECT_F((encodeState->stringBuffer.bytes.length - encodeState->atIndex) < (length + 4UL))) { if(jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + 4096UL + length) == NULL) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); } }
- memcpy(encodeState->stringBuffer.bytes.ptr + encodeState->atIndex, format, length);
- encodeState->atIndex += length;
- jk_encode_updateCache(encodeState, cacheSlot, startingAtIndex, object);
- return(0);
- }
- JK_STATIC_INLINE JKHash jk_encode_object_hash(void *objectPtr) {
- return( ( (((JKHash)objectPtr) >> 21) ^ (((JKHash)objectPtr) >> 9) ) + (((JKHash)objectPtr) >> 4) );
- }
- static int jk_encode_add_atom_to_buffer(JKEncodeState *encodeState, void *objectPtr) {
- NSCParameterAssert((encodeState != NULL) && (encodeState->atIndex < encodeState->stringBuffer.bytes.length) && (objectPtr != NULL));
-
- id object = (id)objectPtr, encodeCacheObject = object;
- int isClass = JKClassUnknown;
- size_t startingAtIndex = encodeState->atIndex;
-
- JKHash objectHash = jk_encode_object_hash(objectPtr);
- JKEncodeCache *cacheSlot = &encodeState->cache[objectHash % JK_ENCODE_CACHE_SLOTS];
-
- if(JK_EXPECT_T(cacheSlot->object == object)) {
- NSCParameterAssert((cacheSlot->object != NULL) &&
- (cacheSlot->offset < encodeState->atIndex) && ((cacheSlot->offset + cacheSlot->length) < encodeState->atIndex) &&
- (cacheSlot->offset < encodeState->stringBuffer.bytes.length) && ((cacheSlot->offset + cacheSlot->length) < encodeState->stringBuffer.bytes.length) &&
- ((encodeState->stringBuffer.bytes.ptr + encodeState->atIndex) < (encodeState->stringBuffer.bytes.ptr + encodeState->stringBuffer.bytes.length)) &&
- ((encodeState->stringBuffer.bytes.ptr + cacheSlot->offset) < (encodeState->stringBuffer.bytes.ptr + encodeState->stringBuffer.bytes.length)) &&
- ((encodeState->stringBuffer.bytes.ptr + cacheSlot->offset + cacheSlot->length) < (encodeState->stringBuffer.bytes.ptr + encodeState->stringBuffer.bytes.length)));
- if(JK_EXPECT_F(((encodeState->atIndex + cacheSlot->length + 256UL) > encodeState->stringBuffer.bytes.length)) && JK_EXPECT_F((jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + cacheSlot->length + 1024UL) == NULL))) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); }
- NSCParameterAssert(((encodeState->atIndex + cacheSlot->length) < encodeState->stringBuffer.bytes.length) &&
- ((encodeState->stringBuffer.bytes.ptr + encodeState->atIndex) < (encodeState->stringBuffer.bytes.ptr + encodeState->stringBuffer.bytes.length)) &&
- ((encodeState->stringBuffer.bytes.ptr + encodeState->atIndex + cacheSlot->length) < (encodeState->stringBuffer.bytes.ptr + encodeState->stringBuffer.bytes.length)) &&
- ((encodeState->stringBuffer.bytes.ptr + cacheSlot->offset) < (encodeState->stringBuffer.bytes.ptr + encodeState->stringBuffer.bytes.length)) &&
- ((encodeState->stringBuffer.bytes.ptr + cacheSlot->offset + cacheSlot->length) < (encodeState->stringBuffer.bytes.ptr + encodeState->stringBuffer.bytes.length)) &&
- ((encodeState->stringBuffer.bytes.ptr + cacheSlot->offset + cacheSlot->length) < (encodeState->stringBuffer.bytes.ptr + encodeState->atIndex)));
- memcpy(encodeState->stringBuffer.bytes.ptr + encodeState->atIndex, encodeState->stringBuffer.bytes.ptr + cacheSlot->offset, cacheSlot->length);
- encodeState->atIndex += cacheSlot->length;
- return(0);
- }
-
- // When we encounter a class that we do not handle, and we have either a delegate or block that the user supplied to format unsupported classes,
- // we "re-run" the object check. However, we re-run the object check exactly ONCE. If the user supplies an object that isn't one of the
- // supported classes, we fail the second time (i.e., double fault error).
- BOOL rerunningAfterClassFormatter = NO;
- rerunAfterClassFormatter:;
-
- // XXX XXX XXX XXX
- //
- // We need to work around a bug in 10.7, which breaks ABI compatibility with Objective-C going back not just to 10.0, but OpenStep and even NextStep.
- //
- // It has long been documented that "the very first thing that a pointer to an Objective-C object "points to" is a pointer to that objects class".
- //
- // This is euphemistically called "tagged pointers". There are a number of highly technical problems with this, most involving long passages from
- // the C standard(s). In short, one can make a strong case, couched from the perspective of the C standard(s), that that 10.7 "tagged pointers" are
- // fundamentally Wrong and Broken, and should have never been implemented. Assuming those points are glossed over, because the change is very clearly
- // breaking ABI compatibility, this should have resulted in a minimum of a "minimum version required" bump in various shared libraries to prevent
- // causes code that used to work just fine to suddenly break without warning.
- //
- // In fact, the C standard says that the hack below is "undefined behavior"- there is no requirement that the 10.7 tagged pointer hack of setting the
- // "lower, unused bits" must be preserved when casting the result to an integer type, but this "works" because for most architectures
- // `sizeof(long) == sizeof(void *)` and the compiler uses the same representation for both. (note: this is informal, not meant to be
- // normative or pedantically correct).
- //
- // In other words, while this "works" for now, technically the compiler is not obligated to do "what we want", and a later version of the compiler
- // is not required in any way to produce the same results or behavior that earlier versions of the compiler did for the statement below.
- //
- // Fan-fucking-tastic.
- //
- // Why not just use `object_getClass()`? Because `object->isa` reduces to (typically) a *single* instruction. Calling `object_getClass()` requires
- // that the compiler potentially spill registers, establish a function call frame / environment, and finally execute a "jump subroutine" instruction.
- // Then, the called subroutine must spend half a dozen instructions in its prolog, however many instructions doing whatever it does, then half a dozen
- // instructions in its prolog. One instruction compared to dozens, maybe a hundred instructions.
- //
- // Yes, that's one to two orders of magnitude difference. Which is compelling in its own right. When going for performance, you're often happy with
- // gains in the two to three percent range.
- //
- // XXX XXX XXX XXX
-
-
- #pragma clang diagnostic push
-
- #pragma clang diagnostic ignored"-Wdeprecated-objc-pointer-introspection"
-
- BOOL workAroundMacOSXABIBreakingBug = (JK_EXPECT_F(((NSUInteger)object) &0x1)) ? YES : NO;
-
- #pragma clang diagnostic pop
-
- // BOOL workAroundMacOSXABIBreakingBug = (JK_EXPECT_F(((NSUInteger)object) & 0x1)) ? YES : NO;
- void *objectISA = (JK_EXPECT_F(workAroundMacOSXABIBreakingBug)) ? NULL : *((void **)objectPtr);
- if(JK_EXPECT_F(workAroundMacOSXABIBreakingBug)) { goto slowClassLookup; }
-
- if(JK_EXPECT_T(objectISA == encodeState->fastClassLookup.stringClass)) { isClass = JKClassString; }
- else if(JK_EXPECT_T(objectISA == encodeState->fastClassLookup.numberClass)) { isClass = JKClassNumber; }
- else if(JK_EXPECT_T(objectISA == encodeState->fastClassLookup.dictionaryClass)) { isClass = JKClassDictionary; }
- else if(JK_EXPECT_T(objectISA == encodeState->fastClassLookup.arrayClass)) { isClass = JKClassArray; }
- else if(JK_EXPECT_T(objectISA == encodeState->fastClassLookup.nullClass)) { isClass = JKClassNull; }
- else {
- slowClassLookup:
- if(JK_EXPECT_T([object isKindOfClass:[NSString class]])) { if(workAroundMacOSXABIBreakingBug == NO) { encodeState->fastClassLookup.stringClass = objectISA; } isClass = JKClassString; }
- else if(JK_EXPECT_T([object isKindOfClass:[NSNumber class]])) { if(workAroundMacOSXABIBreakingBug == NO) { encodeState->fastClassLookup.numberClass = objectISA; } isClass = JKClassNumber; }
- else if(JK_EXPECT_T([object isKindOfClass:[NSDictionary class]])) { if(workAroundMacOSXABIBreakingBug == NO) { encodeState->fastClassLookup.dictionaryClass = objectISA; } isClass = JKClassDictionary; }
- else if(JK_EXPECT_T([object isKindOfClass:[NSArray class]])) { if(workAroundMacOSXABIBreakingBug == NO) { encodeState->fastClassLookup.arrayClass = objectISA; } isClass = JKClassArray; }
- else if(JK_EXPECT_T([object isKindOfClass:[NSNull class]])) { if(workAroundMacOSXABIBreakingBug == NO) { encodeState->fastClassLookup.nullClass = objectISA; } isClass = JKClassNull; }
- else {
- if((rerunningAfterClassFormatter == NO) && (
- #ifdef __BLOCKS__
- ((encodeState->classFormatterBlock) && ((object = encodeState->classFormatterBlock(object)) != NULL)) ||
- #endif
- ((encodeState->classFormatterIMP) && ((object = encodeState->classFormatterIMP(encodeState->classFormatterDelegate, encodeState->classFormatterSelector, object)) != NULL)) )) { rerunningAfterClassFormatter = YES; goto rerunAfterClassFormatter; }
-
- if(rerunningAfterClassFormatter == NO) { jk_encode_error(encodeState, @"Unable to serialize object class %@.", NSStringFromClass([encodeCacheObject class])); return(1); }
- else { jk_encode_error(encodeState, @"Unable to serialize object class %@ that was returned by the unsupported class formatter. Original object class was %@.", (object == NULL) ? @"NULL" : NSStringFromClass([object class]), NSStringFromClass([encodeCacheObject class])); return(1); }
- }
- }
-
- // This is here for the benefit of the optimizer. It allows the optimizer to do loop invariant code motion for the JKClassArray
- // and JKClassDictionary cases when printing simple, single characters via jk_encode_write(), which is actually a macro:
- // #define jk_encode_write1(es, dc, f) (_jk_encode_prettyPrint ? jk_encode_write1slow(es, dc, f) : jk_encode_write1fast(es, dc, f))
- int _jk_encode_prettyPrint = JK_EXPECT_T((encodeState->serializeOptionFlags & JKSerializeOptionPretty) == 0) ? 0 : 1;
-
- switch(isClass) {
- case JKClassString:
- {
- {
- const unsigned char *cStringPtr = (const unsigned char *)CFStringGetCStringPtr((CFStringRef)object, kCFStringEncodingMacRoman);
- if(cStringPtr != NULL) {
- const unsigned char *utf8String = cStringPtr;
- size_t utf8Idx = 0UL;
-
- CFIndex stringLength = CFStringGetLength((CFStringRef)object);
- if(JK_EXPECT_F(((encodeState->atIndex + (stringLength * 2UL) + 256UL) > encodeState->stringBuffer.bytes.length)) && JK_EXPECT_F((jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + (stringLength * 2UL) + 1024UL) == NULL))) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); }
-
- if(JK_EXPECT_T((encodeState->encodeOption & JKEncodeOptionStringObjTrimQuotes) == 0UL)) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\"'; }
- for(utf8Idx = 0UL; utf8String[utf8Idx] != 0U; utf8Idx++) {
- NSCParameterAssert(((&encodeState->stringBuffer.bytes.ptr[encodeState->atIndex]) - encodeState->stringBuffer.bytes.ptr) < (ssize_t)encodeState->stringBuffer.bytes.length);
- NSCParameterAssert(encodeState->atIndex < encodeState->stringBuffer.bytes.length);
- if(JK_EXPECT_F(utf8String[utf8Idx] >= 0x80U)) { encodeState->atIndex = startingAtIndex; goto slowUTF8Path; }
- if(JK_EXPECT_F(utf8String[utf8Idx] < 0x20U)) {
- switch(utf8String[utf8Idx]) {
- case '\b': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'b'; break;
- case '\f': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'f'; break;
- case '\n': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'n'; break;
- case '\r': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'r'; break;
- case '\t': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 't'; break;
- default: if(JK_EXPECT_F(jk_encode_printf(encodeState, NULL, 0UL, NULL, "\\u%4.4x", utf8String[utf8Idx]))) { return(1); } break;
- }
- } else {
- if(JK_EXPECT_F(utf8String[utf8Idx] == '\"') || JK_EXPECT_F(utf8String[utf8Idx] == '\\') || (JK_EXPECT_F(encodeState->serializeOptionFlags & JKSerializeOptionEscapeForwardSlashes) && JK_EXPECT_F(utf8String[utf8Idx] == '/'))) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; }
- encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = utf8String[utf8Idx];
- }
- }
- NSCParameterAssert((encodeState->atIndex + 1UL) < encodeState->stringBuffer.bytes.length);
- if(JK_EXPECT_T((encodeState->encodeOption & JKEncodeOptionStringObjTrimQuotes) == 0UL)) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\"'; }
- jk_encode_updateCache(encodeState, cacheSlot, startingAtIndex, encodeCacheObject);
- return(0);
- }
- }
-
- slowUTF8Path:
- {
- CFIndex stringLength = CFStringGetLength((CFStringRef)object);
- CFIndex maxStringUTF8Length = CFStringGetMaximumSizeForEncoding(stringLength, kCFStringEncodingUTF8) + 32L;
-
- if(JK_EXPECT_F((size_t)maxStringUTF8Length > encodeState->utf8ConversionBuffer.bytes.length) && JK_EXPECT_F(jk_managedBuffer_resize(&encodeState->utf8ConversionBuffer, maxStringUTF8Length + 1024UL) == NULL)) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); }
-
- CFIndex usedBytes = 0L, convertedCount = 0L;
- convertedCount = CFStringGetBytes((CFStringRef)object, CFRangeMake(0L, stringLength), kCFStringEncodingUTF8, '?', NO, encodeState->utf8ConversionBuffer.bytes.ptr, encodeState->utf8ConversionBuffer.bytes.length - 16L, &usedBytes);
- if(JK_EXPECT_F(convertedCount != stringLength) || JK_EXPECT_F(usedBytes < 0L)) { jk_encode_error(encodeState, @"An error occurred converting the contents of a NSString to UTF8."); return(1); }
-
- if(JK_EXPECT_F((encodeState->atIndex + (maxStringUTF8Length * 2UL) + 256UL) > encodeState->stringBuffer.bytes.length) && JK_EXPECT_F(jk_managedBuffer_resize(&encodeState->stringBuffer, encodeState->atIndex + (maxStringUTF8Length * 2UL) + 1024UL) == NULL)) { jk_encode_error(encodeState, @"Unable to resize temporary buffer."); return(1); }
-
- const unsigned char *utf8String = encodeState->utf8ConversionBuffer.bytes.ptr;
-
- size_t utf8Idx = 0UL;
- if(JK_EXPECT_T((encodeState->encodeOption & JKEncodeOptionStringObjTrimQuotes) == 0UL)) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\"'; }
- for(utf8Idx = 0UL; utf8Idx < (size_t)usedBytes; utf8Idx++) {
- NSCParameterAssert(((&encodeState->stringBuffer.bytes.ptr[encodeState->atIndex]) - encodeState->stringBuffer.bytes.ptr) < (ssize_t)encodeState->stringBuffer.bytes.length);
- NSCParameterAssert(encodeState->atIndex < encodeState->stringBuffer.bytes.length);
- NSCParameterAssert((CFIndex)utf8Idx < usedBytes);
- if(JK_EXPECT_F(utf8String[utf8Idx] < 0x20U)) {
- switch(utf8String[utf8Idx]) {
- case '\b': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'b'; break;
- case '\f': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'f'; break;
- case '\n': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'n'; break;
- case '\r': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 'r'; break;
- case '\t': encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = 't'; break;
- default: if(JK_EXPECT_F(jk_encode_printf(encodeState, NULL, 0UL, NULL, "\\u%4.4x", utf8String[utf8Idx]))) { return(1); } break;
- }
- } else {
- if(JK_EXPECT_F(utf8String[utf8Idx] >= 0x80U) && (encodeState->serializeOptionFlags & JKSerializeOptionEscapeUnicode)) {
- const unsigned char *nextValidCharacter = NULL;
- UTF32 u32ch = 0U;
- ConversionResult result;
-
- if(JK_EXPECT_F((result = ConvertSingleCodePointInUTF8(&utf8String[utf8Idx], &utf8String[usedBytes], (UTF8 const **)&nextValidCharacter, &u32ch)) != conversionOK)) { jk_encode_error(encodeState, @"Error converting UTF8."); return(1); }
- else {
- utf8Idx = (nextValidCharacter - utf8String) - 1UL;
- if(JK_EXPECT_T(u32ch <= 0xffffU)) { if(JK_EXPECT_F(jk_encode_printf(encodeState, NULL, 0UL, NULL, "\\u%4.4x", u32ch))) { return(1); } }
- else { if(JK_EXPECT_F(jk_encode_printf(encodeState, NULL, 0UL, NULL, "\\u%4.4x\\u%4.4x", (0xd7c0U + (u32ch >> 10)), (0xdc00U + (u32ch & 0x3ffU))))) { return(1); } }
- }
- } else {
- if(JK_EXPECT_F(utf8String[utf8Idx] == '\"') || JK_EXPECT_F(utf8String[utf8Idx] == '\\') || (JK_EXPECT_F(encodeState->serializeOptionFlags & JKSerializeOptionEscapeForwardSlashes) && JK_EXPECT_F(utf8String[utf8Idx] == '/'))) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\\'; }
- encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = utf8String[utf8Idx];
- }
- }
- }
- NSCParameterAssert((encodeState->atIndex + 1UL) < encodeState->stringBuffer.bytes.length);
- if(JK_EXPECT_T((encodeState->encodeOption & JKEncodeOptionStringObjTrimQuotes) == 0UL)) { encodeState->stringBuffer.bytes.ptr[encodeState->atIndex++] = '\"'; }
- jk_encode_updateCache(encodeState, cacheSlot, startingAtIndex, encodeCacheObject);
- return(0);
- }
- }
- break;
-
- case JKClassNumber:
- {
- if(object == (id)kCFBooleanTrue) { return(jk_encode_writen(encodeState, cacheSlot, startingAtIndex, encodeCacheObject, "true", 4UL)); }
- else if(object == (id)kCFBooleanFalse) { return(jk_encode_writen(encodeState, cacheSlot, startingAtIndex, encodeCacheObject, "false", 5UL)); }
-
- const char *objCType = [object objCType];
- char anum[256], *aptr = &anum[255];
- int isNegative = 0;
- unsigned long long ullv;
- long long llv;
-
- if(JK_EXPECT_F(objCType == NULL) || JK_EXPECT_F(objCType[0] == 0) || JK_EXPECT_F(objCType[1] != 0)) { jk_encode_error(encodeState, @"NSNumber conversion error, unknown type. Type: '%s'", (objCType == NULL) ? "<NULL>" : objCType); return(1); }
-
- switch(objCType[0]) {
- case 'c': case 'i': case 's': case 'l': case 'q':
- if(JK_EXPECT_T(CFNumberGetValue((CFNumberRef)object, kCFNumberLongLongType, &llv))) {
- if(llv < 0LL) { ullv = -llv; isNegative = 1; } else { ullv = llv; isNegative = 0; }
- goto convertNumber;
- } else { jk_encode_error(encodeState, @"Unable to get scalar value from number object."); return(1); }
- break;
- case 'C': case 'I': case 'S': case 'L': case 'Q': case 'B':
- if(JK_EXPECT_T(CFNumberGetValue((CFNumberRef)object, kCFNumberLongLongType, &ullv))) {
- convertNumber:
- if(JK_EXPECT_F(ullv < 10ULL)) { *--aptr = ullv + '0'; } else { while(JK_EXPECT_T(ullv > 0ULL)) { *--aptr = (ullv % 10ULL) + '0'; ullv /= 10ULL; NSCParameterAssert(aptr > anum); } }
- if(isNegative) { *--aptr = '-'; }
- NSCParameterAssert(aptr > anum);
- return(jk_encode_writen(encodeState, cacheSlot, startingAtIndex, encodeCacheObject, aptr, &anum[255] - aptr));
- } else { jk_encode_error(encodeState, @"Unable to get scalar value from number object."); return(1); }
- break;
- case 'f': case 'd':
- {
- double dv;
- if(JK_EXPECT_T(CFNumberGetValue((CFNumberRef)object, kCFNumberDoubleType, &dv))) {
- if(JK_EXPECT_F(!isfinite(dv))) { jk_encode_error(encodeState, @"Floating point values must be finite. JSON does not support NaN or Infinity."); return(1); }
- return(jk_encode_printf(encodeState, cacheSlot, startingAtIndex, encodeCacheObject, "%.17g", dv));
- } else { jk_encode_error(encodeState, @"Unable to get floating point value from number object."); return(1); }
- }
- break;
- default: jk_encode_error(encodeState, @"NSNumber conversion error, unknown type. Type: '%c' / 0x%2.2x", objCType[0], objCType[0]); return(1); break;
- }
- }
- break;
-
- case JKClassArray:
- {
- int printComma = 0;
- CFIndex arrayCount = CFArrayGetCount((CFArrayRef)object), idx = 0L;
- if(JK_EXPECT_F(jk_encode_write1(encodeState, 1L, "["))) { return(1); }
- if(JK_EXPECT_F(arrayCount > 1020L)) {
- for(id arrayObject in object) { if(JK_EXPECT_T(printComma)) { if(JK_EXPECT_F(jk_encode_write1(encodeState, 0L, ","))) { return(1); } } printComma = 1; if(JK_EXPECT_F(jk_encode_add_atom_to_buffer(encodeState, arrayObject))) { return(1); } }
- } else {
- void *objects[1024];
- CFArrayGetValues((CFArrayRef)object, CFRangeMake(0L, arrayCount), (const void **)objects);
- for(idx = 0L; idx < arrayCount; idx++) { if(JK_EXPECT_T(printComma)) { if(JK_EXPECT_F(jk_encode_write1(encodeState, 0L, ","))) { return(1); } } printComma = 1; if(JK_EXPECT_F(jk_encode_add_atom_to_buffer(encodeState, objects[idx]))) { return(1); } }
- }
- return(jk_encode_write1(encodeState, -1L, "]"));
- }
- break;
-
- case JKClassDictionary:
- {
- int printComma = 0;
- CFIndex dictionaryCount = CFDictionaryGetCount((CFDictionaryRef)object), idx = 0L;
- id enumerateObject = JK_EXPECT_F(_jk_encode_prettyPrint) ? [[object allKeys] sortedArrayUsingSelector:@selector(compare:)] : object;
-
- if(JK_EXPECT_F(jk_encode_write1(encodeState, 1L, "{"))) { return(1); }
- if(JK_EXPECT_F(_jk_encode_prettyPrint) || JK_EXPECT_F(dictionaryCount > 1020L)) {
- for(id keyObject in enumerateObject) {
- if(JK_EXPECT_T(printComma)) { if(JK_EXPECT_F(jk_encode_write1(encodeState, 0L, ","))) { return(1); } }
- printComma = 1;
- void *keyObjectISA = *((void **)keyObject);
- if(JK_EXPECT_F((keyObjectISA != encodeState->fastClassLookup.stringClass)) && JK_EXPECT_F(([keyObject isKindOfClass:[NSString class]] == NO))) { jk_encode_error(encodeState, @"Key must be a string object."); return(1); }
- if(JK_EXPECT_F(jk_encode_add_atom_to_buffer(encodeState, keyObject))) { return(1); }
- if(JK_EXPECT_F(jk_encode_write1(encodeState, 0L, ":"))) { return(1); }
- if(JK_EXPECT_F(jk_encode_add_atom_to_buffer(encodeState, (void *)CFDictionaryGetValue((CFDictionaryRef)object, keyObject)))) { return(1); }
- }
- } else {
- void *keys[1024], *objects[1024];
- CFDictionaryGetKeysAndValues((CFDictionaryRef)object, (const void **)keys, (const void **)objects);
- for(idx = 0L; idx < dictionaryCount; idx++) {
- if(JK_EXPECT_T(printComma)) { if(JK_EXPECT_F(jk_encode_write1(encodeState, 0L, ","))) { return(1); } }
- printComma = 1;
- void *keyObjectISA = *((void **)keys[idx]);
- if(JK_EXPECT_F(keyObjectISA != encodeState->fastClassLookup.stringClass) && JK_EXPECT_F([(id)keys[idx] isKindOfClass:[NSString class]] == NO)) { jk_encode_error(encodeState, @"Key must be a string object."); return(1); }
- if(JK_EXPECT_F(jk_encode_add_atom_to_buffer(encodeState, keys[idx]))) { return(1); }
- if(JK_EXPECT_F(jk_encode_write1(encodeState, 0L, ":"))) { return(1); }
- if(JK_EXPECT_F(jk_encode_add_atom_to_buffer(encodeState, objects[idx]))) { return(1); }
- }
- }
- return(jk_encode_write1(encodeState, -1L, "}"));
- }
- break;
-
- case JKClassNull: return(jk_encode_writen(encodeState, cacheSlot, startingAtIndex, encodeCacheObject, "null", 4UL)); break;
-
- default: jk_encode_error(encodeState, @"Unable to serialize object class %@.", NSStringFromClass([object class])); return(1); break;
- }
-
- return(0);
- }
- @implementation JKSerializer
- + (id)serializeObject:(id)object options:(JKSerializeOptionFlags)optionFlags encodeOption:(JKEncodeOptionType)encodeOption block:(JKSERIALIZER_BLOCKS_PROTO)block delegate:(id)delegate selector:(SEL)selector error:(NSError **)error
- {
- return([[[[self alloc] init] autorelease] serializeObject:object options:optionFlags encodeOption:encodeOption block:block delegate:delegate selector:selector error:error]);
- }
- - (id)serializeObject:(id)object options:(JKSerializeOptionFlags)optionFlags encodeOption:(JKEncodeOptionType)encodeOption block:(JKSERIALIZER_BLOCKS_PROTO)block delegate:(id)delegate selector:(SEL)selector error:(NSError **)error
- {
- #ifndef __BLOCKS__
- #pragma unused(block)
- #endif
- NSParameterAssert((object != NULL) && (encodeState == NULL) && ((delegate != NULL) ? (block == NULL) : 1) && ((block != NULL) ? (delegate == NULL) : 1) &&
- (((encodeOption & JKEncodeOptionCollectionObj) != 0UL) ? (((encodeOption & JKEncodeOptionStringObj) == 0UL) && ((encodeOption & JKEncodeOptionStringObjTrimQuotes) == 0UL)) : 1) &&
- (((encodeOption & JKEncodeOptionStringObj) != 0UL) ? ((encodeOption & JKEncodeOptionCollectionObj) == 0UL) : 1));
-
- id returnObject = NULL;
-
- if(encodeState != NULL) { [self releaseState]; }
- if((encodeState = (struct JKEncodeState *)calloc(1UL, sizeof(JKEncodeState))) == NULL) { [NSException raise:NSMallocException format:@"Unable to allocate state structure."]; return(NULL); }
-
- if((error != NULL) && (*error != NULL)) { *error = NULL; }
-
- if(delegate != NULL) {
- if(selector == NULL) { [NSException raise:NSInvalidArgumentException format:@"The delegate argument is not NULL, but the selector argument is NULL."]; }
- if([delegate respondsToSelector:selector] == NO) { [NSException raise:NSInvalidArgumentException format:@"The serializeUnsupportedClassesUsingDelegate: delegate does not respond to the selector argument."]; }
- encodeState->classFormatterDelegate = delegate;
- encodeState->classFormatterSelector = selector;
- encodeState->classFormatterIMP = (JKClassFormatterIMP)[delegate methodForSelector:selector];
- NSCParameterAssert(encodeState->classFormatterIMP != NULL);
- }
-
- #ifdef __BLOCKS__
- encodeState->classFormatterBlock = block;
- #endif
- encodeState->serializeOptionFlags = optionFlags;
- encodeState->encodeOption = encodeOption;
- encodeState->stringBuffer.roundSizeUpToMultipleOf = (1024UL * 32UL);
- encodeState->utf8ConversionBuffer.roundSizeUpToMultipleOf = 4096UL;
-
- unsigned char stackJSONBuffer[JK_JSONBUFFER_SIZE] JK_ALIGNED(64);
- jk_managedBuffer_setToStackBuffer(&encodeState->stringBuffer, stackJSONBuffer, sizeof(stackJSONBuffer));
-
- unsigned char stackUTF8Buffer[JK_UTF8BUFFER_SIZE] JK_ALIGNED(64);
- jk_managedBuffer_setToStackBuffer(&encodeState->utf8ConversionBuffer, stackUTF8Buffer, sizeof(stackUTF8Buffer));
-
- if(((encodeOption & JKEncodeOptionCollectionObj) != 0UL) && (([object isKindOfClass:[NSArray class]] == NO) && ([object isKindOfClass:[NSDictionary class]] == NO))) { jk_encode_error(encodeState, @"Unable to serialize object class %@, expected a NSArray or NSDictionary.", NSStringFromClass([object class])); goto errorExit; }
- if(((encodeOption & JKEncodeOptionStringObj) != 0UL) && ([object isKindOfClass:[NSString class]] == NO)) { jk_encode_error(encodeState, @"Unable to serialize object class %@, expected a NSString.", NSStringFromClass([object class])); goto errorExit; }
-
- if(jk_encode_add_atom_to_buffer(encodeState, object) == 0) {
- BOOL stackBuffer = ((encodeState->stringBuffer.flags & JKManagedBufferMustFree) == 0UL) ? YES : NO;
-
- if((encodeState->atIndex < 2UL))
- if((stackBuffer == NO) && ((encodeState->stringBuffer.bytes.ptr = (unsigned char *)reallocf(encodeState->stringBuffer.bytes.ptr, encodeState->atIndex + 16UL)) == NULL)) { jk_encode_error(encodeState, @"Unable to realloc buffer"); goto errorExit; }
-
- switch((encodeOption & JKEncodeOptionAsTypeMask)) {
- case JKEncodeOptionAsData:
- if(stackBuffer == YES) { if((returnObject = [(id)CFDataCreate( NULL, encodeState->stringBuffer.bytes.ptr, (CFIndex)encodeState->atIndex) autorelease]) == NULL) { jk_encode_error(encodeState, @"Unable to create NSData object"); } }
- else { if((returnObject = [(id)CFDataCreateWithBytesNoCopy( NULL, encodeState->stringBuffer.bytes.ptr, (CFIndex)encodeState->atIndex, NULL) autorelease]) == NULL) { jk_encode_error(encodeState, @"Unable to create NSData object"); } }
- break;
-
- case JKEncodeOptionAsString:
- if(stackBuffer == YES) { if((returnObject = [(id)CFStringCreateWithBytes( NULL, (const UInt8 *)encodeState->stringBuffer.bytes.ptr, (CFIndex)encodeState->atIndex, kCFStringEncodingUTF8, NO) autorelease]) == NULL) { jk_encode_error(encodeState, @"Unable to create NSString object"); } }
- else { if((returnObject = [(id)CFStringCreateWithBytesNoCopy(NULL, (const UInt8 *)encodeState->stringBuffer.bytes.ptr, (CFIndex)encodeState->atIndex, kCFStringEncodingUTF8, NO, NULL) autorelease]) == NULL) { jk_encode_error(encodeState, @"Unable to create NSString object"); } }
- break;
-
- default: jk_encode_error(encodeState, @"Unknown encode as type."); break;
- }
-
- if((returnObject != NULL) && (stackBuffer == NO)) { encodeState->stringBuffer.flags &= ~JKManagedBufferMustFree; encodeState->stringBuffer.bytes.ptr = NULL; encodeState->stringBuffer.bytes.length = 0UL; }
- }
-
- errorExit:
- if((encodeState != NULL) && (error != NULL) && (encodeState->error != NULL)) { *error = encodeState->error; encodeState->error = NULL; }
- [self releaseState];
-
- return(returnObject);
- }
- - (void)releaseState
- {
- if(encodeState != NULL) {
- jk_managedBuffer_release(&encodeState->stringBuffer);
- jk_managedBuffer_release(&encodeState->utf8ConversionBuffer);
- free(encodeState); encodeState = NULL;
- }
- }
- - (void)dealloc
- {
- [self releaseState];
- [super dealloc];
- }
- @end
- @implementation NSString (JSONKitSerializing)
- ////////////
- #pragma mark Methods for serializing a single NSString.
- ////////////
- // Useful for those who need to serialize just a NSString. Otherwise you would have to do something like [NSArray arrayWithObject:stringToBeJSONSerialized], serializing the array, and then chopping of the extra ^\[.*\]$ square brackets.
- // NSData returning methods...
- - (NSData *)JSONData
- {
- return([self JSONDataWithOptions:JKSerializeOptionNone includeQuotes:YES error:NULL]);
- }
- - (NSData *)JSONDataWithOptions:(JKSerializeOptionFlags)serializeOptions includeQuotes:(BOOL)includeQuotes error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsData | ((includeQuotes == NO) ? JKEncodeOptionStringObjTrimQuotes : 0UL) | JKEncodeOptionStringObj) block:NULL delegate:NULL selector:NULL error:error]);
- }
- // NSString returning methods...
- - (NSString *)JSONString
- {
- return([self JSONStringWithOptions:JKSerializeOptionNone includeQuotes:YES error:NULL]);
- }
- - (NSString *)JSONStringWithOptions:(JKSerializeOptionFlags)serializeOptions includeQuotes:(BOOL)includeQuotes error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsString | ((includeQuotes == NO) ? JKEncodeOptionStringObjTrimQuotes : 0UL) | JKEncodeOptionStringObj) block:NULL delegate:NULL selector:NULL error:error]);
- }
- @end
- @implementation NSArray (JSONKitSerializing)
- // NSData returning methods...
- - (NSData *)JSONData
- {
- return([JKSerializer serializeObject:self options:JKSerializeOptionNone encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:NULL]);
- }
- - (NSData *)JSONDataWithOptions:(JKSerializeOptionFlags)serializeOptions error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:error]);
- }
- - (NSData *)JSONDataWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingDelegate:(id)delegate selector:(SEL)selector error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:NULL delegate:delegate selector:selector error:error]);
- }
- // NSString returning methods...
- - (NSString *)JSONString
- {
- return([JKSerializer serializeObject:self options:JKSerializeOptionNone encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:NULL]);
- }
- - (NSString *)JSONStringWithOptions:(JKSerializeOptionFlags)serializeOptions error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:error]);
- }
- - (NSString *)JSONStringWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingDelegate:(id)delegate selector:(SEL)selector error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:NULL delegate:delegate selector:selector error:error]);
- }
- @end
- @implementation NSDictionary (JSONKitSerializing)
- // NSData returning methods...
- - (NSData *)JSONData
- {
- return([JKSerializer serializeObject:self options:JKSerializeOptionNone encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:NULL]);
- }
- - (NSData *)JSONDataWithOptions:(JKSerializeOptionFlags)serializeOptions error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:error]);
- }
- - (NSData *)JSONDataWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingDelegate:(id)delegate selector:(SEL)selector error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:NULL delegate:delegate selector:selector error:error]);
- }
- // NSString returning methods...
- - (NSString *)JSONString
- {
- return([JKSerializer serializeObject:self options:JKSerializeOptionNone encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:NULL]);
- }
- - (NSString *)JSONStringWithOptions:(JKSerializeOptionFlags)serializeOptions error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:NULL delegate:NULL selector:NULL error:error]);
- }
- - (NSString *)JSONStringWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingDelegate:(id)delegate selector:(SEL)selector error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:NULL delegate:delegate selector:selector error:error]);
- }
- @end
- #ifdef __BLOCKS__
- @implementation NSArray (JSONKitSerializingBlockAdditions)
- - (NSData *)JSONDataWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingBlock:(id(^)(id object))block error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:block delegate:NULL selector:NULL error:error]);
- }
- - (NSString *)JSONStringWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingBlock:(id(^)(id object))block error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:block delegate:NULL selector:NULL error:error]);
- }
- @end
- @implementation NSDictionary (JSONKitSerializingBlockAdditions)
- - (NSData *)JSONDataWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingBlock:(id(^)(id object))block error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsData | JKEncodeOptionCollectionObj) block:block delegate:NULL selector:NULL error:error]);
- }
- - (NSString *)JSONStringWithOptions:(JKSerializeOptionFlags)serializeOptions serializeUnsupportedClassesUsingBlock:(id(^)(id object))block error:(NSError **)error
- {
- return([JKSerializer serializeObject:self options:serializeOptions encodeOption:(JKEncodeOptionAsString | JKEncodeOptionCollectionObj) block:block delegate:NULL selector:NULL error:error]);
- }
- @end
- #endif // __BLOCKS__
|