504 lines
16 KiB
C++
504 lines
16 KiB
C++
#ifndef INTERNAL_JSONNODE_H
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#define INTERNAL_JSONNODE_H
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#include "JSONDebug.h"
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#include "JSONChildren.h"
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#include "JSONMemory.h"
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#include "JSONGlobals.h"
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#ifdef JSON_DEBUG
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#include <climits> //to check int value
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#endif
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#include "JSONSharedString.h"
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#ifdef JSON_LESS_MEMORY
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#ifdef __GNUC__
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#pragma pack(push, 1)
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#elif _MSC_VER
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#pragma pack(push, internalJSONNode_pack, 1)
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#endif
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#endif
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/*
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This class is the work horse of libjson, it handles all of the
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functinality of JSONNode. This object is reference counted for
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speed and memory reasons.
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If JSON_REF_COUNT is not on, this internal structure still has an important
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purpose, as it can be passed around by JSONNoders that are flagged as temporary
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*/
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class JSONNode; //forward declaration
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#ifndef JSON_LIBRARY
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#define DECL_SET_INTEGER(type) void Set(type) json_nothrow json_write_priority; void Set(unsigned type) json_nothrow json_write_priority;
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#define DECL_CAST_OP(type) operator type() const json_nothrow; operator unsigned type() const json_nothrow;
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#endif
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#ifdef JSON_MUTEX_CALLBACKS
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#define initializeMutex(x) ,mylock(x)
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#else
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#define initializeMutex(x)
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#endif
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#if defined(JSON_PREPARSE) || !defined(JSON_READ_PRIORITY)
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#define SetFetched(b) (void)0
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#define Fetch() (void)0
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#define initializeFetch(x)
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#else
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#define initializeFetch(x) ,fetched(x)
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#endif
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#ifdef JSON_REF_COUNT
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#define initializeRefCount(x) ,refcount(x)
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#else
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#define initializeRefCount(x)
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#endif
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#ifdef JSON_COMMENTS
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#define initializeComment(x) ,_comment(x)
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#else
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#define initializeComment(x)
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#endif
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#ifdef JSON_LESS_MEMORY
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#define CHILDREN _value.Children
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#define DELETE_CHILDREN()\
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if (isContainer()){\
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jsonChildren::deleteChildren(CHILDREN);\
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}
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#define CHILDREN_TO_NULL() (void)0
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#define initializeChildren(x)
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#else
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#define CHILDREN Children
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#define DELETE_CHILDREN()\
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if (CHILDREN != 0) jsonChildren::deleteChildren(CHILDREN);
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#define CHILDREN_TO_NULL() CHILDREN = 0
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#define makeNotContainer() (void)0
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#define makeContainer() if (!CHILDREN) CHILDREN = jsonChildren::newChildren()
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#define initializeChildren(x) ,CHILDREN(x)
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#endif
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class internalJSONNode {
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public:
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LIBJSON_OBJECT(internalJSONNode);
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internalJSONNode(char mytype = JSON_NULL) json_nothrow json_hot;
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#ifdef JSON_READ_PRIORITY
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internalJSONNode(const json_string & unparsed) json_nothrow json_hot;
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internalJSONNode(const json_string & name_t, const json_string & value_t) json_nothrow json_read_priority;
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#endif
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internalJSONNode(const internalJSONNode & orig) json_nothrow json_hot;
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internalJSONNode & operator = (const internalJSONNode &) json_nothrow json_hot;
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~internalJSONNode(void) json_nothrow json_hot;
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static internalJSONNode * newInternal(char mytype = JSON_NULL) json_hot;
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#ifdef JSON_READ_PRIORITY
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static internalJSONNode * newInternal(const json_string & unparsed) json_hot;
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static internalJSONNode * newInternal(const json_string & name_t, const json_string & value_t) json_hot;
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#endif
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static internalJSONNode * newInternal(const internalJSONNode & orig) json_hot; //not copyable, only by this class
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static void deleteInternal(internalJSONNode * ptr) json_nothrow json_hot;
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json_index_t size(void) const json_nothrow json_read_priority;
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bool empty(void) const json_nothrow;
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unsigned char type(void) const json_nothrow json_read_priority;
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json_string name(void) const json_nothrow json_read_priority;
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void setname(const json_string & newname) json_nothrow json_write_priority;
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#ifdef JSON_COMMENTS
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void setcomment(const json_string & comment) json_nothrow;
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json_string getcomment(void) const json_nothrow;
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#endif
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#if !defined(JSON_PREPARSE) && defined(JSON_READ_PRIORITY)
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void preparse(void) json_nothrow;
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#endif
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#ifdef JSON_LIBRARY
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void push_back(JSONNode * node) json_nothrow;
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#else
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void push_back(const JSONNode & node) json_nothrow;
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#endif
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void reserve(json_index_t siz) json_nothrow;
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void push_front(const JSONNode & node) json_nothrow;
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JSONNode * pop_back(json_index_t pos) json_nothrow;
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JSONNode * pop_back(const json_string & name_t) json_nothrow;
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#ifdef JSON_CASE_INSENSITIVE_FUNCTIONS
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JSONNode * pop_back_nocase(const json_string & name_t) json_nothrow;
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#endif
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JSONNode * at(json_index_t pos) json_nothrow;
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//These return ** because pop_back needs them
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JSONNode ** at(const json_string & name_t) json_nothrow;
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#ifdef JSON_CASE_INSENSITIVE_FUNCTIONS
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JSONNode ** at_nocase(const json_string & name_t) json_nothrow;
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#endif
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void Set(const json_string & val) json_nothrow json_write_priority;
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#ifdef JSON_LIBRARY
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void Set(json_number val) json_nothrow json_write_priority;
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void Set(json_int_t val) json_nothrow json_write_priority;
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operator json_int_t() const json_nothrow;
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operator json_number() const json_nothrow;
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#else
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DECL_SET_INTEGER(char)
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DECL_SET_INTEGER(short)
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DECL_SET_INTEGER(int)
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DECL_SET_INTEGER(long)
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#ifndef JSON_ISO_STRICT
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DECL_SET_INTEGER(long long)
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void Set(long double val) json_nothrow json_write_priority;
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#endif
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void Set(float val) json_nothrow json_write_priority;
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void Set(double val) json_nothrow json_write_priority;
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DECL_CAST_OP(char)
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DECL_CAST_OP(short)
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DECL_CAST_OP(int)
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DECL_CAST_OP(long)
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#ifndef JSON_ISO_STRICT
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DECL_CAST_OP(long long)
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operator long double() const json_nothrow;
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#endif
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operator float() const json_nothrow;
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operator double() const json_nothrow;
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#endif
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operator json_string()const json_nothrow;
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operator bool() const json_nothrow;
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void Set(bool val) json_nothrow;
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bool IsEqualTo(const json_string & val) const json_nothrow;
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bool IsEqualTo(bool val) const json_nothrow;
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bool IsEqualTo(const internalJSONNode * val) const json_nothrow;
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template<typename T>
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bool IsEqualToNum(T val) const json_nothrow;
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internalJSONNode * incRef(void) json_nothrow;
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#ifdef JSON_REF_COUNT
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void decRef(void) json_nothrow json_hot;
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bool hasNoReferences(void) json_nothrow json_hot;
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#endif
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internalJSONNode * makeUnique(void) json_nothrow json_hot;
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JSONNode ** begin(void) const json_nothrow;
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JSONNode ** end(void) const json_nothrow;
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bool Fetched(void) const json_nothrow json_hot;
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#ifdef JSON_MUTEX_CALLBACKS
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void _set_mutex(void * mutex, bool unset = true) json_nothrow json_cold;
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void _unset_mutex(void) json_nothrow json_cold;
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#endif
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#ifdef JSON_WRITE_PRIORITY
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void DumpRawString(json_string & output) const json_nothrow json_write_priority;
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void WriteName(bool formatted, bool arrayChild, json_string & output) const json_nothrow json_write_priority;
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#ifdef JSON_ARRAY_SIZE_ON_ONE_LINE
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void WriteChildrenOneLine(unsigned int indent, json_string & output) const json_nothrow json_write_priority;
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#endif
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void WriteChildren(unsigned int indent, json_string & output) const json_nothrow json_write_priority;
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void WriteComment(unsigned int indent, json_string & output) const json_nothrow json_write_priority;
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void Write(unsigned int indent, bool arrayChild, json_string & output) const json_nothrow json_write_priority;
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#endif
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inline bool isContainer(void) const json_nothrow {
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return (_type == JSON_NODE || _type == JSON_ARRAY);
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}
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inline bool isNotContainer(void) const json_nothrow {
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return (_type != JSON_NODE && _type != JSON_ARRAY);
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}
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#ifdef JSON_LESS_MEMORY
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inline void makeNotContainer(void){
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if (isContainer()){
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jsonChildren::deleteChildren(CHILDREN);
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}
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}
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inline void makeContainer(void){
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if (isNotContainer()){
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CHILDREN = jsonChildren::newChildren();
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}
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}
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#endif
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void Nullify(void) const json_nothrow;
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#if !defined(JSON_PREPARSE) && defined(JSON_READ_PRIORITY)
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void SetFetched(bool val) const json_nothrow json_hot;
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void Fetch(void) const json_nothrow json_hot; //it's const because it doesn't change the VALUE of the function
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#endif
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#ifdef JSON_READ_PRIORITY
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void FetchString(void) const json_nothrow json_read_priority;
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void FetchNode(void) const json_nothrow json_read_priority;
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void FetchArray(void) const json_nothrow json_read_priority;
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#endif
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void FetchNumber(void) const json_nothrow json_read_priority;
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#ifdef JSON_CASE_INSENSITIVE_FUNCTIONS
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static bool AreEqualNoCase(const json_char * ch_one, const json_char * ch_two) json_nothrow json_read_priority;
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#endif
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inline void clearname(void) json_nothrow {
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clearString(_name);
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}
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#ifdef JSON_DEBUG
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#ifndef JSON_LIBRARY
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JSONNode Dump(size_t & totalmemory) const json_nothrow;
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JSONNode DumpMutex(void) const json_nothrow;
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#endif
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#endif
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mutable unsigned char _type BITS(3);
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json_string _name;
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mutable bool _name_encoded BITS(1); //must be above name due to initialization list order
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mutable json_string _string; //these are both mutable because the string can change when it's fetched
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mutable bool _string_encoded BITS(1);
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//the value of the json
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union value_union_t {
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bool _bool BITS(1);
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json_number _number;
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#ifdef JSON_LESS_MEMORY
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jsonChildren * Children;
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#endif
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};
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mutable value_union_t _value; //internal structure changes depending on type
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#ifdef JSON_MUTEX_CALLBACKS
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void * mylock;
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#endif
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#ifdef JSON_REF_COUNT
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size_t refcount PACKED(20);
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#endif
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#if !defined(JSON_PREPARSE) && defined(JSON_READ_PRIORITY)
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mutable bool fetched BITS(1);
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#endif
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#ifdef JSON_COMMENTS
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json_string _comment;
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#endif
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#ifndef JSON_LESS_MEMORY
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jsonChildren * CHILDREN;
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#endif
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};
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inline internalJSONNode::internalJSONNode(char mytype) json_nothrow : _type(mytype), _name(), _name_encoded(), _string(), _string_encoded(), _value()
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initializeMutex(0)
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initializeRefCount(1)
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initializeFetch(true)
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initializeComment(json_global(EMPTY_JSON_STRING))
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initializeChildren((_type == JSON_NODE || _type == JSON_ARRAY) ? jsonChildren::newChildren() : 0){
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LIBJSON_CTOR;
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#ifdef JSON_LESS_MEMORY
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//if not less memory, its in the initialization list
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if (isContainer()){
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CHILDREN = jsonChildren::newChildren();
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}
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#endif
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}
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inline internalJSONNode * internalJSONNode::incRef(void) json_nothrow {
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#ifdef JSON_REF_COUNT
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++refcount;
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return this;
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#else
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return makeUnique();
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#endif
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}
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inline json_index_t internalJSONNode::size(void) const json_nothrow {
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if (isNotContainer()) return 0;
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Fetch();
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return CHILDREN -> size();
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}
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inline bool internalJSONNode::empty(void) const json_nothrow {
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if (isNotContainer()) return true;
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Fetch();
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return CHILDREN -> empty();
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}
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inline unsigned char internalJSONNode::type(void) const json_nothrow {
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return _type;
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}
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inline json_string internalJSONNode::name(void) const json_nothrow {
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return _name;
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}
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inline void internalJSONNode::setname(const json_string & newname) json_nothrow {
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#ifdef JSON_LESS_MEMORY
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JSON_ASSERT(newname.capacity() == newname.length(), JSON_TEXT("name object too large"));
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#endif
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_name = newname;
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_name_encoded = true;
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}
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#ifdef JSON_COMMENTS
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inline void internalJSONNode::setcomment(const json_string & comment) json_nothrow {
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_comment = comment;
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}
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inline json_string internalJSONNode::getcomment(void) const json_nothrow {
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return _comment;
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}
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#endif
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inline bool internalJSONNode::IsEqualTo(const json_string & val) const json_nothrow {
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if (type() != JSON_STRING) return false;
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Fetch();
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return _string == val;
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}
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inline bool internalJSONNode::IsEqualTo(bool val) const json_nothrow {
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if (type() != JSON_BOOL) return false;
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Fetch();
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return val == _value._bool;
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}
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template<typename T>
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inline bool internalJSONNode::IsEqualToNum(T val) const json_nothrow {
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if (type() != JSON_NUMBER) return false;
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Fetch();
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return (json_number)val == _value._number;
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}
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#ifdef JSON_REF_COUNT
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inline void internalJSONNode::decRef(void) json_nothrow {
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JSON_ASSERT(refcount != 0, JSON_TEXT("decRef on a 0 refcount internal"));
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--refcount;
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}
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inline bool internalJSONNode::hasNoReferences(void) json_nothrow {
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return refcount == 0;
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}
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#endif
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inline internalJSONNode * internalJSONNode::makeUnique(void) json_nothrow {
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#ifdef JSON_REF_COUNT
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if (refcount > 1){
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decRef();
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return newInternal(*this);
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}
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JSON_ASSERT(refcount == 1, JSON_TEXT("makeUnique on a 0 refcount internal"));
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return this;
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#else
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return newInternal(*this);
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#endif
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}
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#if !defined(JSON_PREPARSE) && defined(JSON_READ_PRIORITY)
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inline void internalJSONNode::SetFetched(bool val) const json_nothrow {
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fetched = val;
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}
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#endif
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inline bool internalJSONNode::Fetched(void) const json_nothrow {
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#if !defined(JSON_PREPARSE) && defined(JSON_READ_PRIORITY)
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return fetched;
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#else
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return true;
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#endif
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}
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inline JSONNode ** internalJSONNode::begin(void) const json_nothrow {
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JSON_ASSERT_SAFE(isContainer(), json_global(ERROR_NON_CONTAINER) + JSON_TEXT("begin"), return 0;);
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Fetch();
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return CHILDREN -> begin();
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}
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inline JSONNode ** internalJSONNode::end(void) const json_nothrow {
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JSON_ASSERT_SAFE(isContainer(), json_global(ERROR_NON_CONTAINER) + JSON_TEXT("end"), return 0;);
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Fetch();
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return CHILDREN -> end();
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}
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inline JSONNode * internalJSONNode::at(json_index_t pos) json_nothrow {
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JSON_ASSERT_SAFE(isContainer(), JSON_TEXT("calling at on non-container type"), return 0;);
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Fetch();
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return (*CHILDREN)[pos];
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}
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#if defined(JSON_LESS_MEMORY) && defined(__GNUC__)
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inline void internalJSONNode::reserve(json_index_t __attribute__((unused)) siz) json_nothrow
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#else
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inline void internalJSONNode::reserve(json_index_t siz) json_nothrow
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#endif
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{
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JSON_ASSERT_SAFE(isContainer(), json_global(ERROR_NON_CONTAINER) + JSON_TEXT("reserve"), return;);
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Fetch();
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jsonChildren::reserve2(CHILDREN, siz);
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}
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/*
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cast operators
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*/
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#ifndef JSON_LIBRARY
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#ifdef JSON_ISO_STRICT
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#define BASE_CONVERT_TYPE long
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#else
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#define BASE_CONVERT_TYPE long long
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#endif
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#define IMP_SMALLER_INT_CAST_OP(_type, type_max, type_min)\
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inline internalJSONNode::operator _type() const json_nothrow {\
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JSON_ASSERT(_value._number > type_min, _string + json_global(ERROR_LOWER_RANGE) + JSON_TEXT(#_type));\
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JSON_ASSERT(_value._number < type_max, _string + json_global(ERROR_UPPER_RANGE) + JSON_TEXT(#_type));\
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JSON_ASSERT(_value._number == (json_number)((_type)(_value._number)), json_string(JSON_TEXT("(")) + json_string(JSON_TEXT(#_type)) + json_string(JSON_TEXT(") will truncate ")) + _string);\
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return (_type)static_cast<BASE_CONVERT_TYPE>(*this);\
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}
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IMP_SMALLER_INT_CAST_OP(char, CHAR_MAX, CHAR_MIN)
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IMP_SMALLER_INT_CAST_OP(unsigned char, UCHAR_MAX, 0)
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IMP_SMALLER_INT_CAST_OP(short, SHRT_MAX, SHRT_MIN)
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IMP_SMALLER_INT_CAST_OP(unsigned short, USHRT_MAX, 0)
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IMP_SMALLER_INT_CAST_OP(int, INT_MAX, INT_MIN)
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IMP_SMALLER_INT_CAST_OP(unsigned int, UINT_MAX, 0)
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#ifndef JSON_ISO_STRICT
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IMP_SMALLER_INT_CAST_OP(long, LONG_MAX, LONG_MIN)
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IMP_SMALLER_INT_CAST_OP(unsigned long, ULONG_MAX, 0)
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#endif
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#endif
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inline internalJSONNode::operator json_string() const json_nothrow {
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Fetch();
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return _string;
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}
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#ifndef JSON_LIBRARY
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#ifndef JSON_ISO_STRICT
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inline internalJSONNode::operator float() const json_nothrow {
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return static_cast<float>(static_cast<long double>(*this));
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}
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inline internalJSONNode::operator double() const json_nothrow {
|
|
return static_cast<double>(static_cast<long double>(*this));
|
|
}
|
|
#else
|
|
inline internalJSONNode::operator float() const json_nothrow {
|
|
return static_cast<float>(static_cast<double>(*this));
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef JSON_LESS_MEMORY
|
|
#ifdef __GNUC__
|
|
#pragma pack(pop)
|
|
#elif _MSC_VER
|
|
#pragma pack(pop, internalJSONNode_pack,)
|
|
#endif
|
|
#endif
|
|
#endif
|