summaryrefslogtreecommitdiff
path: root/plugins/JSON/Source/JSONChildren.cpp
blob: 9f9e53ee81f411ac1419974798d0991deb7536fc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
#include "JSONChildren.h"
#include "JSONNode.h"

void jsonChildren::inc(void){
    if (mysize == mycapacity){  //it's full
	   if (!mycapacity){  //the array hasn't been created yet
		  JSON_ASSERT(!array, JSON_TEXT("Expanding a 0 capacity array, but not null"));
		  #ifdef JSON_LESS_MEMORY
			 array = json_malloc<JSONNode*>(1);
			 mycapacity = 1;
		  #else
			 array = json_malloc<JSONNode*>(8);  //8 seems average for JSON, and it's only 64 bytes
			 mycapacity = 8;
		  #endif
	   } else {
		  #ifdef JSON_LESS_MEMORY
			 mycapacity += 1;  //increment the size of the array
		  #else
			 mycapacity <<= 1;  //double the size of the array
		  #endif
		  array = json_realloc<JSONNode*>(array, mycapacity);
	   }
    }   
}


void jsonChildren::inc(json_index_t amount){
    if (!amount) return;
    if (mysize + amount >= mycapacity){  //it's full
	   if (!mycapacity){  //the array hasn't been created yet
		  JSON_ASSERT(!array, JSON_TEXT("Expanding a 0 capacity array, but not null"));
		  #ifdef JSON_LESS_MEMORY
			 array = json_malloc<JSONNode*>(amount);
			 mycapacity = amount;
		  #else
			 array = json_malloc<JSONNode*>(amount > 8 ? amount : 8);  //8 seems average for JSON, and it's only 64 bytes
			 mycapacity = amount > 8 ? amount : 8;
		  #endif
	   } else {
		  #ifdef JSON_LESS_MEMORY
			 mycapacity = mysize + amount;  //increment the size of the array
		  #else
			 while(mysize + amount > mycapacity){
				mycapacity <<= 1;  //double the size of the array
			 }
		  #endif
		  array = json_realloc<JSONNode*>(array, mycapacity);
	   }
    }   
}

//actually deletes everything within the vector, this is safe to do on an empty or even a null array
void jsonChildren::deleteAll(void){
    json_foreach((*this), runner){
        JSON_ASSERT(*runner, JSON_TEXT("a null pointer within the children"));
	   JSONNode::deleteJSONNode(*runner);  //this is why I can't do forward declaration
    }
}

void jsonChildren::doerase(JSONNode ** position, json_index_t number){
    JSON_ASSERT(array, JSON_TEXT("erasing something from a null array 2"));
    JSON_ASSERT(position >= array, JSON_TEXT("position is beneath the start of the array 2"));
    JSON_ASSERT(position + number <= array + mysize, JSON_TEXT("erasing out of bounds 2"));
    if (position + number >= array + mysize){
	   mysize = (json_index_t)(position - array);
	   #ifndef JSON_ISO_STRICT
		  JSON_ASSERT((long long)position - (long long)array >= 0, JSON_TEXT("doing negative allocation"));
	   #endif
    } else {
	   memmove(position, position + number, (mysize - (position - array) - number) * sizeof(JSONNode *));
	   mysize -= number;
    }
}