2 see copyright notice in squirrel.h
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4 #include "sqpcheader.h"
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8 #include "sqclosure.h"
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10 SQClass::SQClass(SQSharedState *ss,SQClass *base)
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15 _metamethods.resize(MT_LAST); //size it to max size
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17 _defaultvalues.copy(base->_defaultvalues);
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18 _methods.copy(base->_methods);
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19 _metamethods.copy(base->_metamethods);
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22 _members = base?base->_members->Clone() : SQTable::Create(ss,0);
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23 __ObjAddRef(_members);
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26 ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
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29 void SQClass::Finalize() {
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30 _attributes = _null_;
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31 _defaultvalues.resize(0);
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33 _metamethods.resize(0);
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34 __ObjRelease(_members);
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36 __ObjRelease(_base);
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42 REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
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46 bool SQClass::NewSlot(SQSharedState *ss,const SQObjectPtr &key,const SQObjectPtr &val,bool bstatic)
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50 return false; //the class already has an instance so cannot be modified
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51 if(_members->Get(key,temp) && _isfield(temp)) //overrides the default value
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53 _defaultvalues[_member_idx(temp)].val = val;
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56 if(type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE || bstatic) {
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58 if((type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE) &&
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59 (mmidx = ss->GetMetaMethodIdxByName(key)) != -1) {
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60 _metamethods[mmidx] = val;
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63 if(type(temp) == OT_NULL) {
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66 _members->NewSlot(key,SQObjectPtr(_make_method_idx(_methods.size())));
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67 _methods.push_back(m);
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70 _methods[_member_idx(temp)].val = val;
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77 _members->NewSlot(key,SQObjectPtr(_make_field_idx(_defaultvalues.size())));
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78 _defaultvalues.push_back(m);
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82 SQInstance *SQClass::CreateInstance()
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84 if(!_locked) Lock();
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85 return SQInstance::Create(_opt_ss(this),this);
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88 SQInteger SQClass::Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)
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91 SQInteger idx = _members->Next(false,refpos,outkey,oval);
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93 if(_ismethod(oval)) {
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94 outval = _methods[_member_idx(oval)].val;
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97 SQObjectPtr &o = _defaultvalues[_member_idx(oval)].val;
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98 outval = _realval(o);
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104 bool SQClass::SetAttributes(const SQObjectPtr &key,const SQObjectPtr &val)
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107 if(_members->Get(key,idx)) {
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109 _defaultvalues[_member_idx(idx)].attrs = val;
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111 _methods[_member_idx(idx)].attrs = val;
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117 bool SQClass::GetAttributes(const SQObjectPtr &key,SQObjectPtr &outval)
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120 if(_members->Get(key,idx)) {
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121 outval = (_isfield(idx)?_defaultvalues[_member_idx(idx)].attrs:_methods[_member_idx(idx)].attrs);
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127 ///////////////////////////////////////////////////////////////////////
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128 void SQInstance::Init(SQSharedState *ss)
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130 _userpointer = NULL;
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132 __ObjAddRef(_class);
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133 _delegate = _class->_members;
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135 ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
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138 SQInstance::SQInstance(SQSharedState *ss, SQClass *c, SQInteger memsize)
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140 _memsize = memsize;
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142 _nvalues = _class->_defaultvalues.size();
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143 for(SQUnsignedInteger n = 0; n < _nvalues; n++) {
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144 new (&_values[n]) SQObjectPtr(_class->_defaultvalues[n].val);
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149 SQInstance::SQInstance(SQSharedState *ss, SQInstance *i, SQInteger memsize)
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151 _memsize = memsize;
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152 _class = i->_class;
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153 _nvalues = _class->_defaultvalues.size();
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154 for(SQUnsignedInteger n = 0; n < _nvalues; n++) {
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155 new (&_values[n]) SQObjectPtr(i->_values[n]);
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160 void SQInstance::Finalize()
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162 __ObjRelease(_class);
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163 for(SQUnsignedInteger i = 0; i < _nvalues; i++) {
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164 _values[i] = _null_;
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168 SQInstance::~SQInstance()
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170 REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
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174 bool SQInstance::GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res)
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176 if(type(_class->_metamethods[mm]) != OT_NULL) {
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177 res = _class->_metamethods[mm];
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183 bool SQInstance::InstanceOf(SQClass *trg)
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185 SQClass *parent = _class;
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186 while(parent != NULL) {
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189 parent = parent->_base;
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