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-rw-r--r--plugins/JSON/Source/JSONChildren.h234
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diff --git a/plugins/JSON/Source/JSONChildren.h b/plugins/JSON/Source/JSONChildren.h
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--- a/plugins/JSON/Source/JSONChildren.h
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-#ifndef JSONCHILDREN_H
-#define JSONCHILDREN_H
-
-#include "JSONMemory.h"
-#include "JSONDebug.h" //for JSON_ASSERT macro
-
-#define json_foreach(children, iterator)\
- JSONNode ** iterator = children.begin();\
- for(JSONNode ** iterator##_end = children.end(); iterator != iterator##_end; ++iterator)
-
-/*
- This class is essentially a vector that has been heavily optimized for the specific purpose
- of holding JSONNode children. It acts the same way as a vector, it has a automatically
- expanding array. On destruction, this container automatically destroys everything contained
- in it as well, so that you libJSON doesn't have to do that.
-
- T is JSONNode*, I can't define it that way directly because JSONNode uses this container, and because
- the container deletes the children automatically, forward declaration can't be used
- */
-
-class JSONNode; //forward declaration
-
-class jsonChildren {
-public:
- //starts completely empty and the array is not allocated
- jsonChildren(void) : array(0), mysize(0), mycapacity(0) { }
-
- //deletes the array and everything that is contained within it (using delete)
- ~jsonChildren(void){
- if (array){ //the following function calls are safe, but take more time than a check here
- deleteAll();
- libjson_free<JSONNode*>(array);
- }
- }
-
- //increase the size of the array
- void inc(json_index_t amount);
- void inc(void);
-
- //Adds something to the vector, doubling the array if necessary
- void push_back(JSONNode * item){
- inc();
- array[mysize++] = item;
- }
-
- //Adds something to the front of the vector, doubling the array if necessary
- void push_front(JSONNode * item){
- inc();
- memmove(array + 1, array, mysize++ * sizeof(JSONNode *));
- array[0] = item;
- }
-
- //gets an item out of the vector by it's position
- inline JSONNode * operator[] (json_index_t position) const {
- JSON_ASSERT(position < mysize, JSON_TEXT("Using [] out of bounds"));
- JSON_ASSERT(position < mycapacity, JSON_TEXT("Using [] out of bounds"));
- JSON_ASSERT(array, JSON_TEXT("Array is null"));
- return array[position];
- }
-
- //returns the allocated capacity, but keep in mind that some might not be valid
- inline json_index_t capacity() const {
- return mycapacity;
- }
-
- //returns the number of valid objects within the vector
- inline json_index_t size() const {
- return mysize;
- }
-
- //tests whether or not the vector is empty
- inline bool empty() const {
- return mysize == 0;
- }
-
- //clears (and deletes) everything from the vector and sets it's size to 0
- inline void clear() {
- if (array){ //don't bother clearing anything if there is nothing in it
- JSON_ASSERT(mycapacity != 0, JSON_TEXT("mycapacity is not zero, but array is null"));
- deleteAll();
- mysize = 0;
- }
- JSON_ASSERT(mysize == 0, JSON_TEXT("mysize is not zero after clear"));
- }
-
- //returns the beginning of the array
- inline JSONNode ** begin(void) const {
- return array;
- }
-
- //returns the end of the array
- inline JSONNode ** end(void) const {
- return array + mysize;
- }
-
- //makes sure that even after shirnking and expanding, the iterator is in same relative position
- struct iteratorKeeper {
- public:
- #ifdef JSON_LIBRARY
- iteratorKeeper(jsonChildren * pthis, JSONNode ** & position) :
- myRelativeOffset((json_index_t)(position - pthis -> array)),
- #else
- iteratorKeeper(jsonChildren * pthis, JSONNode ** & position, bool reverse = false) :
- myRelativeOffset(reverse ? (json_index_t)(pthis -> array + (size_t)pthis -> mysize - position) : (json_index_t)(position - pthis -> array)),
- myReverse(reverse),
- #endif
- myChildren(pthis),
- myPos(position){}
-
- ~iteratorKeeper(void){
- #ifdef JSON_LIBRARY
- myPos = myChildren -> array + myRelativeOffset;
- #else
- if (myReverse){
- myPos = myChildren -> array + myChildren -> mysize - myRelativeOffset;
- } else {
- myPos = myChildren -> array + myRelativeOffset;
- }
- #endif
- }
- private:
- iteratorKeeper(const iteratorKeeper &);
- iteratorKeeper & operator = (const iteratorKeeper &);
-
- jsonChildren * myChildren;
- JSONNode ** & myPos;
- json_index_t myRelativeOffset;
- #ifndef JSON_LIBRARY
- bool myReverse BITS(1);
- #endif
- };
-
- //This function DOES NOT delete the item it points to
- inline void erase(JSONNode ** & position){
- JSON_ASSERT(array, JSON_TEXT("erasing something from a null array 1"));
- JSON_ASSERT(position >= array, JSON_TEXT("position is beneath the start of the array 1"));
- JSON_ASSERT(position <= array + mysize, JSON_TEXT("erasing out of bounds 1"));
- memmove(position, position + 1, (mysize-- - (position - array) - 1) * sizeof(JSONNode *));
- iteratorKeeper ik(this, position);
- shrink();
- }
-
- //This function DOES NOT delete the item it points to
- inline void erase(JSONNode ** & position, json_index_t number){
- doerase(position, number);
- iteratorKeeper ik(this, position);
- shrink();
- }
-
-
- //This function DOES NOT delete the item it points to
- inline void erase(JSONNode ** position, json_index_t number, JSONNode ** & starter){
- doerase(position, number);
- iteratorKeeper ik(this, starter);
- shrink();
- }
-
- #ifdef JSON_LIBRARY
- void insert(JSONNode ** & position, JSONNode * item){
- #else
- void insert(JSONNode ** & position, JSONNode * item, bool reverse = false){
- #endif
- //position isnt relative to array because of realloc
- JSON_ASSERT(position >= array, JSON_TEXT("position is beneath the start of the array insert 1"));
- JSON_ASSERT(position <= array + mysize, JSON_TEXT("position is above the end of the array insert 1"));
- {
- #ifdef JSON_LIBRARY
- iteratorKeeper ik(this, position);
- #else
- iteratorKeeper ik(this, position, reverse);
- #endif
- inc();
- }
- memmove(position + 1, position, (mysize++ - (position - array)) * sizeof(JSONNode *));
- *position = item;
- }
-
- void insert(JSONNode ** & position, JSONNode ** items, json_index_t num){
- JSON_ASSERT(position >= array, JSON_TEXT("position is beneath the start of the array insert 2"));
- JSON_ASSERT(position <= array + mysize, JSON_TEXT("position is above the end of the array insert 2"));
- {
- iteratorKeeper ik(this, position);
- inc(num);
- }
- const size_t ptrs = ((JSONNode **)(array + mysize)) - position;
- memmove(position + num, position, ptrs * sizeof(JSONNode *));
- memcpy(position, items, num * sizeof(JSONNode *));
- mysize += num;
- }
-
- inline void reserve(json_index_t amount){
- JSON_ASSERT(!array, JSON_TEXT("reserve is not meant to expand a preexisting array"));
- JSON_ASSERT(!mycapacity, JSON_TEXT("reservec is not meant to expand a preexisting array"));
- JSON_ASSERT(!mysize, JSON_TEXT("reserves is not meant to expand a preexisting array"));
- array = json_malloc<JSONNode*>(mycapacity = amount);
- }
-
- inline void reserve2(json_index_t amount){
- if (array){
- if (mycapacity < amount) inc(amount - mycapacity);
- } else {
- reserve(amount);
- }
- }
-
- //shrinks the array to only as large as it needs to be to hold everything within it
- inline void shrink() {
- if (mysize == 0){ //size is zero, we should completely free the array
- libjson_free<JSONNode*>(array); //free does checks for a null pointer, so don't bother checking
- array = 0;
- #ifdef JSON_LESS_MEMORY
- } else { //need to shrink it, using realloc
- JSON_ASSERT(array, JSON_TEXT("shrinking a null array that is not size 0"));
- array = json_realloc<JSONNode*>(array, mysize);
- #endif
- }
- mycapacity = mysize;
- }
-JSON_PRIVATE
- //to make sure it's not copyable
- jsonChildren(const jsonChildren &);
- jsonChildren & operator = (const jsonChildren &);
-
- void deleteAll(void); //implemented in JSONNode.cpp
- void doerase(JSONNode ** position, json_index_t number);
-
- JSONNode ** array; //the expandable array
-
- json_index_t mysize; //the number of valid items
- json_index_t mycapacity; //the number of possible items
-};
-
-
-#endif
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