1 /* see copyright notice in squirrel.h */
\r
5 * The following code is based on Lua 4.0 (Copyright 1994-2002 Tecgraf, PUC-Rio.)
\r
6 * http://www.lua.org/copyright.html#4
\r
7 * http://www.lua.org/source/4.0.1/src_ltable.c.html
\r
10 #include "sqstring.h"
\r
13 #define hashptr(p) ((SQHash)(((SQInteger)p) >> 3))
\r
15 inline SQHash HashObj(const SQObjectPtr &key)
\r
18 case OT_STRING: return _string(key)->_hash;
\r
19 case OT_FLOAT: return (SQHash)((SQInteger)_float(key));
\r
20 case OT_BOOL: case OT_INTEGER: return (SQHash)((SQInteger)_integer(key));
\r
21 default: return hashptr(key._unVal.pRefCounted);
\r
25 struct SQTable : public SQDelegable
\r
30 _HashNode() { next = NULL; }
\r
35 _HashNode *_firstfree;
\r
37 SQInteger _numofnodes;
\r
38 SQInteger _usednodes;
\r
40 ///////////////////////////
\r
41 void AllocNodes(SQInteger nSize);
\r
42 void Rehash(bool force);
\r
43 SQTable(SQSharedState *ss, SQInteger nInitialSize);
\r
45 static SQTable* Create(SQSharedState *ss,SQInteger nInitialSize)
\r
47 SQTable *newtable = (SQTable*)SQ_MALLOC(sizeof(SQTable));
\r
48 new (newtable) SQTable(ss, nInitialSize);
\r
49 newtable->_delegate = NULL;
\r
57 REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
\r
58 for (SQInteger i = 0; i < _numofnodes; i++) _nodes[i].~_HashNode();
\r
59 SQ_FREE(_nodes, _numofnodes * sizeof(_HashNode));
\r
61 #ifndef NO_GARBAGE_COLLECTOR
\r
62 void Mark(SQCollectable **chain);
\r
64 inline _HashNode *_Get(const SQObjectPtr &key,SQHash hash)
\r
66 _HashNode *n = &_nodes[hash];
\r
68 if(_rawval(n->key) == _rawval(key) && type(n->key) == type(key)){
\r
71 }while((n = n->next));
\r
74 bool Get(const SQObjectPtr &key,SQObjectPtr &val);
\r
75 void Remove(const SQObjectPtr &key);
\r
76 bool Set(const SQObjectPtr &key, const SQObjectPtr &val);
\r
77 //returns true if a new slot has been created false if it was already present
\r
78 bool NewSlot(const SQObjectPtr &key,const SQObjectPtr &val);
\r
79 SQInteger Next(bool getweakrefs,const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval);
\r
81 SQInteger CountUsed(){ return _usednodes;}
\r
84 sq_delete(this, SQTable);
\r
89 #endif //_SQTABLE_H_
\r