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#include "JSONChildren.h"
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#include "JSONNode.h"
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/*
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* reserves a certain number of bytes, in memory saving mode it creates a special
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* type of child container that will not autoshrink
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*/
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void jsonChildren::reserve2(jsonChildren *& mine, json_index_t amount) json_nothrow {
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if (mine -> array != 0){
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if (mine -> mycapacity < amount){
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mine -> inc(amount - mine -> mycapacity);
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#ifdef JSON_LESS_MEMORY
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mine = jsonChildren_Reserved::newChildren_Reserved(mine, amount);
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#endif
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}
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} else {
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mine -> reserve(amount);
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}
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}
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/*
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clang objects to testing pointers to be non-null:
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warning: 'this' pointer cannot be null in well-defined C++ code ...
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*/
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void jsonChildren::inc(void) json_nothrow {
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// JSON_ASSERT(this != 0, JSON_TEXT("Children is null inc"));
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if (json_unlikely(mysize == mycapacity)){ //it's full
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if (json_unlikely(mycapacity == 0)){ //the array hasn't been created yet
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// JSON_ASSERT(!array, JSON_TEXT("Expanding a 0 capacity array, but not null"));
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#ifdef JSON_LESS_MEMORY
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array = json_malloc<JSONNode*>(1);
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mycapacity = 1;
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#else
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array = json_malloc<JSONNode*>(8); //8 seems average for JSON, and it's only 64 bytes
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mycapacity = 8;
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#endif
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} else {
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#ifdef JSON_LESS_MEMORY
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mycapacity += 1; //increment the size of the array
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#else
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mycapacity <<= 1; //double the size of the array
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#endif
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array = json_realloc<JSONNode*>(array, mycapacity);
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}
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}
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}
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void jsonChildren::inc(json_index_t amount) json_nothrow {
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// JSON_ASSERT(this != 0, JSON_TEXT("Children is null inc(amount)"));
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if (json_unlikely(amount == 0)) return;
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if (json_likely(mysize + amount >= mycapacity)){ //it's full
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if (json_unlikely(mycapacity == 0)){ //the array hasn't been created yet
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// JSON_ASSERT(!array, JSON_TEXT("Expanding a 0 capacity array, but not null"));
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#ifdef JSON_LESS_MEMORY
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array = json_malloc<JSONNode*>(amount);
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mycapacity = amount;
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#else
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array = json_malloc<JSONNode*>(amount > 8 ? amount : 8); //8 seems average for JSON, and it's only 64 bytes
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mycapacity = amount > 8 ? amount : 8;
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#endif
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} else {
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#ifdef JSON_LESS_MEMORY
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mycapacity = mysize + amount; //increment the size of the array
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#else
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while(mysize + amount > mycapacity){
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mycapacity <<= 1; //double the size of the array
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}
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#endif
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array = json_realloc<JSONNode*>(array, mycapacity);
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}
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}
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}
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//actually deletes everything within the vector, this is safe to do on an empty or even a null array
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void jsonChildren::deleteAll(void) json_nothrow {
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// JSON_ASSERT(this != 0, JSON_TEXT("Children is null deleteAll"));
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json_foreach(this, runner){
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// JSON_ASSERT(*runner != 0, JSON_TEXT("a null pointer within the children"));
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JSONNode::deleteJSONNode(*runner); //this is why I can't do forward declaration
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}
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}
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void jsonChildren::doerase(JSONNode ** position, json_index_t number) json_nothrow {
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// JSON_ASSERT(this != 0, JSON_TEXT("Children is null doerase"));
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// JSON_ASSERT(array != 0, JSON_TEXT("erasing something from a null array 2"));
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// JSON_ASSERT(position >= array, JSON_TEXT("position is beneath the start of the array 2"));
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// JSON_ASSERT(position + number <= array + mysize, JSON_TEXT("erasing out of bounds 2"));
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if (position + number >= array + mysize){
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mysize = (json_index_t)(position - array);
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#ifndef JSON_ISO_STRICT
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// JSON_ASSERT((long long)position - (long long)array >= 0, JSON_TEXT("doing negative allocation"));
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#endif
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} else {
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std::memmove(position, position + number, (mysize - (position - array) - number) * sizeof(JSONNode *));
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mysize -= number;
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}
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}
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