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SqMod/external/Squirrel/sqobject.cpp
Sandu Liviu Catalin a35643ae6e Update squirrel to the latest version from the official repository. 
Include the standard library that was filtered out by a mistake in the gitignore file.
2016-03-22 02:32:03 +02:00

678 lines
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/*
see copyright notice in squirrel.h
*/
#include "sqpcheader.h"
#include "sqvm.h"
#include "sqstring.h"
#include "sqarray.h"
#include "sqtable.h"
#include "squserdata.h"
#include "sqfuncproto.h"
#include "sqclass.h"
#include "sqclosure.h"
const SQChar *IdType2Name(SQObjectType type)
{
switch(_RAW_TYPE(type))
{
case _RT_NULL:return _SC("null");
case _RT_INTEGER:return _SC("integer");
case _RT_FLOAT:return _SC("float");
case _RT_BOOL:return _SC("bool");
case _RT_STRING:return _SC("string");
case _RT_TABLE:return _SC("table");
case _RT_ARRAY:return _SC("array");
case _RT_GENERATOR:return _SC("generator");
case _RT_CLOSURE:
case _RT_NATIVECLOSURE:
return _SC("function");
case _RT_USERDATA:
case _RT_USERPOINTER:
return _SC("userdata");
case _RT_THREAD: return _SC("thread");
case _RT_FUNCPROTO: return _SC("function");
case _RT_CLASS: return _SC("class");
case _RT_INSTANCE: return _SC("instance");
case _RT_WEAKREF: return _SC("weakref");
case _RT_OUTER: return _SC("outer");
default:
return NULL;
}
}
const SQChar *GetTypeName(const SQObjectPtr &obj1)
{
return IdType2Name(type(obj1));
}
SQString *SQString::Create(SQSharedState *ss,const SQChar *s,SQInteger len)
{
SQString *str=ADD_STRING(ss,s,len);
return str;
}
void SQString::Release()
{
REMOVE_STRING(_sharedstate,this);
}
SQInteger SQString::Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)
{
SQInteger idx = (SQInteger)TranslateIndex(refpos);
while(idx < _len){
outkey = (SQInteger)idx;
outval = (SQInteger)((SQUnsignedInteger)_val[idx]);
//return idx for the next iteration
return ++idx;
}
//nothing to iterate anymore
return -1;
}
SQUnsignedInteger TranslateIndex(const SQObjectPtr &idx)
{
switch(type(idx)){
case OT_NULL:
return 0;
case OT_INTEGER:
return (SQUnsignedInteger)_integer(idx);
default: assert(0); break;
}
return 0;
}
SQWeakRef *SQRefCounted::GetWeakRef(SQObjectType type)
{
if(!_weakref) {
sq_new(_weakref,SQWeakRef);
#if defined(SQUSEDOUBLE) && !defined(_SQ64)
_weakref->_obj._unVal.raw = 0; //clean the whole union on 32 bits with double
#endif
_weakref->_obj._type = type;
_weakref->_obj._unVal.pRefCounted = this;
}
return _weakref;
}
SQRefCounted::~SQRefCounted()
{
if(_weakref) {
_weakref->_obj._type = OT_NULL;
_weakref->_obj._unVal.pRefCounted = NULL;
}
}
void SQWeakRef::Release() {
if(ISREFCOUNTED(_obj._type)) {
_obj._unVal.pRefCounted->_weakref = NULL;
}
sq_delete(this,SQWeakRef);
}
bool SQDelegable::GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res) {
if(_delegate) {
return _delegate->Get((*_ss(v)->_metamethods)[mm],res);
}
return false;
}
bool SQDelegable::SetDelegate(SQTable *mt)
{
SQTable *temp = mt;
if(temp == this) return false;
while (temp) {
if (temp->_delegate == this) return false; //cycle detected
temp = temp->_delegate;
}
if (mt) __ObjAddRef(mt);
__ObjRelease(_delegate);
_delegate = mt;
return true;
}
bool SQGenerator::Yield(SQVM *v,SQInteger target)
{
if(_state==eSuspended) { v->Raise_Error(_SC("internal vm error, yielding dead generator")); return false;}
if(_state==eDead) { v->Raise_Error(_SC("internal vm error, yielding a dead generator")); return false; }
SQInteger size = v->_top-v->_stackbase;
_stack.resize(size);
SQObject _this = v->_stack[v->_stackbase];
_stack._vals[0] = ISREFCOUNTED(type(_this)) ? SQObjectPtr(_refcounted(_this)->GetWeakRef(type(_this))) : _this;
for(SQInteger n =1; n<target; n++) {
_stack._vals[n] = v->_stack[v->_stackbase+n];
}
for(SQInteger j =0; j < size; j++)
{
v->_stack[v->_stackbase+j].Null();
}
_ci = *v->ci;
_ci._generator=NULL;
for(SQInteger i=0;i<_ci._etraps;i++) {
_etraps.push_back(v->_etraps.top());
v->_etraps.pop_back();
// store relative stack base and size in case of resume to other _top
SQExceptionTrap &et = _etraps.back();
et._stackbase -= v->_stackbase;
et._stacksize -= v->_stackbase;
}
_state=eSuspended;
return true;
}
bool SQGenerator::Resume(SQVM *v,SQObjectPtr &dest)
{
if(_state==eDead){ v->Raise_Error(_SC("resuming dead generator")); return false; }
if(_state==eRunning){ v->Raise_Error(_SC("resuming active generator")); return false; }
SQInteger size = _stack.size();
SQInteger target = &dest - &(v->_stack._vals[v->_stackbase]);
assert(target>=0 && target<=255);
SQInteger newbase = v->_top;
if(!v->EnterFrame(v->_top, v->_top + size, false))
return false;
v->ci->_generator = this;
v->ci->_target = (SQInt32)target;
v->ci->_closure = _ci._closure;
v->ci->_ip = _ci._ip;
v->ci->_literals = _ci._literals;
v->ci->_ncalls = _ci._ncalls;
v->ci->_etraps = _ci._etraps;
v->ci->_root = _ci._root;
for(SQInteger i=0;i<_ci._etraps;i++) {
v->_etraps.push_back(_etraps.top());
_etraps.pop_back();
SQExceptionTrap &et = v->_etraps.back();
// restore absolute stack base and size
et._stackbase += newbase;
et._stacksize += newbase;
}
SQObject _this = _stack._vals[0];
v->_stack[v->_stackbase] = type(_this) == OT_WEAKREF ? _weakref(_this)->_obj : _this;
for(SQInteger n = 1; n<size; n++) {
v->_stack[v->_stackbase+n] = _stack._vals[n];
_stack._vals[n].Null();
}
_state=eRunning;
if (v->_debughook)
v->CallDebugHook(_SC('c'));
return true;
}
void SQArray::Extend(const SQArray *a){
SQInteger xlen;
if((xlen=a->Size()))
for(SQInteger i=0;i<xlen;i++)
Append(a->_values[i]);
}
const SQChar* SQFunctionProto::GetLocal(SQVM *vm,SQUnsignedInteger stackbase,SQUnsignedInteger nseq,SQUnsignedInteger nop)
{
SQUnsignedInteger nvars=_nlocalvarinfos;
const SQChar *res=NULL;
if(nvars>=nseq){
for(SQUnsignedInteger i=0;i<nvars;i++){
if(_localvarinfos[i]._start_op<=nop && _localvarinfos[i]._end_op>=nop)
{
if(nseq==0){
vm->Push(vm->_stack[stackbase+_localvarinfos[i]._pos]);
res=_stringval(_localvarinfos[i]._name);
break;
}
nseq--;
}
}
}
return res;
}
SQInteger SQFunctionProto::GetLine(SQInstruction *curr)
{
SQInteger op = (SQInteger)(curr-_instructions);
SQInteger line=_lineinfos[0]._line;
SQInteger low = 0;
SQInteger high = _nlineinfos - 1;
SQInteger mid = 0;
while(low <= high)
{
mid = low + ((high - low) >> 1);
SQInteger curop = _lineinfos[mid]._op;
if(curop > op)
{
high = mid - 1;
}
else if(curop < op) {
if(mid < (_nlineinfos - 1)
&& _lineinfos[mid + 1]._op >= op) {
break;
}
low = mid + 1;
}
else { //equal
break;
}
}
while(mid > 0 && _lineinfos[mid]._op >= op) mid--;
line = _lineinfos[mid]._line;
return line;
}
SQClosure::~SQClosure()
{
__ObjRelease(_root);
__ObjRelease(_env);
__ObjRelease(_base);
REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
}
#define _CHECK_IO(exp) { if(!exp)return false; }
bool SafeWrite(HSQUIRRELVM v,SQWRITEFUNC write,SQUserPointer up,SQUserPointer dest,SQInteger size)
{
if(write(up,dest,size) != size) {
v->Raise_Error(_SC("io error (write function failure)"));
return false;
}
return true;
}
bool SafeRead(HSQUIRRELVM v,SQWRITEFUNC read,SQUserPointer up,SQUserPointer dest,SQInteger size)
{
if(size && read(up,dest,size) != size) {
v->Raise_Error(_SC("io error, read function failure, the origin stream could be corrupted/trucated"));
return false;
}
return true;
}
bool WriteTag(HSQUIRRELVM v,SQWRITEFUNC write,SQUserPointer up,SQUnsignedInteger32 tag)
{
return SafeWrite(v,write,up,&tag,sizeof(tag));
}
bool CheckTag(HSQUIRRELVM v,SQWRITEFUNC read,SQUserPointer up,SQUnsignedInteger32 tag)
{
SQUnsignedInteger32 t;
_CHECK_IO(SafeRead(v,read,up,&t,sizeof(t)));
if(t != tag){
v->Raise_Error(_SC("invalid or corrupted closure stream"));
return false;
}
return true;
}
bool WriteObject(HSQUIRRELVM v,SQUserPointer up,SQWRITEFUNC write,SQObjectPtr &o)
{
SQUnsignedInteger32 _type = (SQUnsignedInteger32)type(o);
_CHECK_IO(SafeWrite(v,write,up,&_type,sizeof(_type)));
switch(type(o)){
case OT_STRING:
_CHECK_IO(SafeWrite(v,write,up,&_string(o)->_len,sizeof(SQInteger)));
_CHECK_IO(SafeWrite(v,write,up,_stringval(o),sq_rsl(_string(o)->_len)));
break;
case OT_BOOL:
case OT_INTEGER:
_CHECK_IO(SafeWrite(v,write,up,&_integer(o),sizeof(SQInteger)));break;
case OT_FLOAT:
_CHECK_IO(SafeWrite(v,write,up,&_float(o),sizeof(SQFloat)));break;
case OT_NULL:
break;
default:
v->Raise_Error(_SC("cannot serialize a %s"),GetTypeName(o));
return false;
}
return true;
}
bool ReadObject(HSQUIRRELVM v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &o)
{
SQUnsignedInteger32 _type;
_CHECK_IO(SafeRead(v,read,up,&_type,sizeof(_type)));
SQObjectType t = (SQObjectType)_type;
switch(t){
case OT_STRING:{
SQInteger len;
_CHECK_IO(SafeRead(v,read,up,&len,sizeof(SQInteger)));
_CHECK_IO(SafeRead(v,read,up,_ss(v)->GetScratchPad(sq_rsl(len)),sq_rsl(len)));
o=SQString::Create(_ss(v),_ss(v)->GetScratchPad(-1),len);
}
break;
case OT_INTEGER:{
SQInteger i;
_CHECK_IO(SafeRead(v,read,up,&i,sizeof(SQInteger))); o = i; break;
}
case OT_BOOL:{
SQInteger i;
_CHECK_IO(SafeRead(v,read,up,&i,sizeof(SQInteger))); o._type = OT_BOOL; o._unVal.nInteger = i; break;
}
case OT_FLOAT:{
SQFloat f;
_CHECK_IO(SafeRead(v,read,up,&f,sizeof(SQFloat))); o = f; break;
}
case OT_NULL:
o.Null();
break;
default:
v->Raise_Error(_SC("cannot serialize a %s"),IdType2Name(t));
return false;
}
return true;
}
bool SQClosure::Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write)
{
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_HEAD));
_CHECK_IO(WriteTag(v,write,up,sizeof(SQChar)));
_CHECK_IO(WriteTag(v,write,up,sizeof(SQInteger)));
_CHECK_IO(WriteTag(v,write,up,sizeof(SQFloat)));
_CHECK_IO(_function->Save(v,up,write));
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_TAIL));
return true;
}
bool SQClosure::Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret)
{
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_HEAD));
_CHECK_IO(CheckTag(v,read,up,sizeof(SQChar)));
_CHECK_IO(CheckTag(v,read,up,sizeof(SQInteger)));
_CHECK_IO(CheckTag(v,read,up,sizeof(SQFloat)));
SQObjectPtr func;
_CHECK_IO(SQFunctionProto::Load(v,up,read,func));
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_TAIL));
ret = SQClosure::Create(_ss(v),_funcproto(func),_table(v->_roottable)->GetWeakRef(OT_TABLE));
//FIXME: load an root for this closure
return true;
}
SQFunctionProto::SQFunctionProto(SQSharedState *ss)
{
_stacksize=0;
_bgenerator=false;
INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this);
}
SQFunctionProto::~SQFunctionProto()
{
REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
}
bool SQFunctionProto::Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write)
{
SQInteger i,nliterals = _nliterals,nparameters = _nparameters;
SQInteger noutervalues = _noutervalues,nlocalvarinfos = _nlocalvarinfos;
SQInteger nlineinfos=_nlineinfos,ninstructions = _ninstructions,nfunctions=_nfunctions;
SQInteger ndefaultparams = _ndefaultparams;
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(WriteObject(v,up,write,_sourcename));
_CHECK_IO(WriteObject(v,up,write,_name));
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeWrite(v,write,up,&nliterals,sizeof(nliterals)));
_CHECK_IO(SafeWrite(v,write,up,&nparameters,sizeof(nparameters)));
_CHECK_IO(SafeWrite(v,write,up,&noutervalues,sizeof(noutervalues)));
_CHECK_IO(SafeWrite(v,write,up,&nlocalvarinfos,sizeof(nlocalvarinfos)));
_CHECK_IO(SafeWrite(v,write,up,&nlineinfos,sizeof(nlineinfos)));
_CHECK_IO(SafeWrite(v,write,up,&ndefaultparams,sizeof(ndefaultparams)));
_CHECK_IO(SafeWrite(v,write,up,&ninstructions,sizeof(ninstructions)));
_CHECK_IO(SafeWrite(v,write,up,&nfunctions,sizeof(nfunctions)));
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
for(i=0;i<nliterals;i++){
_CHECK_IO(WriteObject(v,up,write,_literals[i]));
}
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
for(i=0;i<nparameters;i++){
_CHECK_IO(WriteObject(v,up,write,_parameters[i]));
}
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
for(i=0;i<noutervalues;i++){
_CHECK_IO(SafeWrite(v,write,up,&_outervalues[i]._type,sizeof(SQUnsignedInteger)));
_CHECK_IO(WriteObject(v,up,write,_outervalues[i]._src));
_CHECK_IO(WriteObject(v,up,write,_outervalues[i]._name));
}
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
for(i=0;i<nlocalvarinfos;i++){
SQLocalVarInfo &lvi=_localvarinfos[i];
_CHECK_IO(WriteObject(v,up,write,lvi._name));
_CHECK_IO(SafeWrite(v,write,up,&lvi._pos,sizeof(SQUnsignedInteger)));
_CHECK_IO(SafeWrite(v,write,up,&lvi._start_op,sizeof(SQUnsignedInteger)));
_CHECK_IO(SafeWrite(v,write,up,&lvi._end_op,sizeof(SQUnsignedInteger)));
}
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeWrite(v,write,up,_lineinfos,sizeof(SQLineInfo)*nlineinfos));
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeWrite(v,write,up,_defaultparams,sizeof(SQInteger)*ndefaultparams));
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeWrite(v,write,up,_instructions,sizeof(SQInstruction)*ninstructions));
_CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));
for(i=0;i<nfunctions;i++){
_CHECK_IO(_funcproto(_functions[i])->Save(v,up,write));
}
_CHECK_IO(SafeWrite(v,write,up,&_stacksize,sizeof(_stacksize)));
_CHECK_IO(SafeWrite(v,write,up,&_bgenerator,sizeof(_bgenerator)));
_CHECK_IO(SafeWrite(v,write,up,&_varparams,sizeof(_varparams)));
return true;
}
bool SQFunctionProto::Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret)
{
SQInteger i, nliterals,nparameters;
SQInteger noutervalues ,nlocalvarinfos ;
SQInteger nlineinfos,ninstructions ,nfunctions,ndefaultparams ;
SQObjectPtr sourcename, name;
SQObjectPtr o;
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(ReadObject(v, up, read, sourcename));
_CHECK_IO(ReadObject(v, up, read, name));
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeRead(v,read,up, &nliterals, sizeof(nliterals)));
_CHECK_IO(SafeRead(v,read,up, &nparameters, sizeof(nparameters)));
_CHECK_IO(SafeRead(v,read,up, &noutervalues, sizeof(noutervalues)));
_CHECK_IO(SafeRead(v,read,up, &nlocalvarinfos, sizeof(nlocalvarinfos)));
_CHECK_IO(SafeRead(v,read,up, &nlineinfos, sizeof(nlineinfos)));
_CHECK_IO(SafeRead(v,read,up, &ndefaultparams, sizeof(ndefaultparams)));
_CHECK_IO(SafeRead(v,read,up, &ninstructions, sizeof(ninstructions)));
_CHECK_IO(SafeRead(v,read,up, &nfunctions, sizeof(nfunctions)));
SQFunctionProto *f = SQFunctionProto::Create(_opt_ss(v),ninstructions,nliterals,nparameters,
nfunctions,noutervalues,nlineinfos,nlocalvarinfos,ndefaultparams);
SQObjectPtr proto = f; //gets a ref in case of failure
f->_sourcename = sourcename;
f->_name = name;
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
for(i = 0;i < nliterals; i++){
_CHECK_IO(ReadObject(v, up, read, o));
f->_literals[i] = o;
}
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
for(i = 0; i < nparameters; i++){
_CHECK_IO(ReadObject(v, up, read, o));
f->_parameters[i] = o;
}
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
for(i = 0; i < noutervalues; i++){
SQUnsignedInteger type;
SQObjectPtr name;
_CHECK_IO(SafeRead(v,read,up, &type, sizeof(SQUnsignedInteger)));
_CHECK_IO(ReadObject(v, up, read, o));
_CHECK_IO(ReadObject(v, up, read, name));
f->_outervalues[i] = SQOuterVar(name,o, (SQOuterType)type);
}
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
for(i = 0; i < nlocalvarinfos; i++){
SQLocalVarInfo lvi;
_CHECK_IO(ReadObject(v, up, read, lvi._name));
_CHECK_IO(SafeRead(v,read,up, &lvi._pos, sizeof(SQUnsignedInteger)));
_CHECK_IO(SafeRead(v,read,up, &lvi._start_op, sizeof(SQUnsignedInteger)));
_CHECK_IO(SafeRead(v,read,up, &lvi._end_op, sizeof(SQUnsignedInteger)));
f->_localvarinfos[i] = lvi;
}
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeRead(v,read,up, f->_lineinfos, sizeof(SQLineInfo)*nlineinfos));
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeRead(v,read,up, f->_defaultparams, sizeof(SQInteger)*ndefaultparams));
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
_CHECK_IO(SafeRead(v,read,up, f->_instructions, sizeof(SQInstruction)*ninstructions));
_CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));
for(i = 0; i < nfunctions; i++){
_CHECK_IO(_funcproto(o)->Load(v, up, read, o));
f->_functions[i] = o;
}
_CHECK_IO(SafeRead(v,read,up, &f->_stacksize, sizeof(f->_stacksize)));
_CHECK_IO(SafeRead(v,read,up, &f->_bgenerator, sizeof(f->_bgenerator)));
_CHECK_IO(SafeRead(v,read,up, &f->_varparams, sizeof(f->_varparams)));
ret = f;
return true;
}
#ifndef NO_GARBAGE_COLLECTOR
#define START_MARK() if(!(_uiRef&MARK_FLAG)){ \
_uiRef|=MARK_FLAG;
#define END_MARK() RemoveFromChain(&_sharedstate->_gc_chain, this); \
AddToChain(chain, this); }
void SQVM::Mark(SQCollectable **chain)
{
START_MARK()
SQSharedState::MarkObject(_lasterror,chain);
SQSharedState::MarkObject(_errorhandler,chain);
SQSharedState::MarkObject(_debughook_closure,chain);
SQSharedState::MarkObject(_roottable, chain);
SQSharedState::MarkObject(temp_reg, chain);
for(SQUnsignedInteger i = 0; i < _stack.size(); i++) SQSharedState::MarkObject(_stack[i], chain);
for(SQInteger k = 0; k < _callsstacksize; k++) SQSharedState::MarkObject(_callsstack[k]._closure, chain);
END_MARK()
}
void SQArray::Mark(SQCollectable **chain)
{
START_MARK()
SQInteger len = _values.size();
for(SQInteger i = 0;i < len; i++) SQSharedState::MarkObject(_values[i], chain);
END_MARK()
}
void SQTable::Mark(SQCollectable **chain)
{
START_MARK()
if(_delegate) _delegate->Mark(chain);
SQInteger len = _numofnodes;
for(SQInteger i = 0; i < len; i++){
SQSharedState::MarkObject(_nodes[i].key, chain);
SQSharedState::MarkObject(_nodes[i].val, chain);
}
END_MARK()
}
void SQClass::Mark(SQCollectable **chain)
{
START_MARK()
_members->Mark(chain);
if(_base) _base->Mark(chain);
SQSharedState::MarkObject(_attributes, chain);
for(SQUnsignedInteger i =0; i< _defaultvalues.size(); i++) {
SQSharedState::MarkObject(_defaultvalues[i].val, chain);
SQSharedState::MarkObject(_defaultvalues[i].attrs, chain);
}
for(SQUnsignedInteger j =0; j< _methods.size(); j++) {
SQSharedState::MarkObject(_methods[j].val, chain);
SQSharedState::MarkObject(_methods[j].attrs, chain);
}
for(SQUnsignedInteger k =0; k< MT_LAST; k++) {
SQSharedState::MarkObject(_metamethods[k], chain);
}
END_MARK()
}
void SQInstance::Mark(SQCollectable **chain)
{
START_MARK()
_class->Mark(chain);
SQUnsignedInteger nvalues = _class->_defaultvalues.size();
for(SQUnsignedInteger i =0; i< nvalues; i++) {
SQSharedState::MarkObject(_values[i], chain);
}
END_MARK()
}
void SQGenerator::Mark(SQCollectable **chain)
{
START_MARK()
for(SQUnsignedInteger i = 0; i < _stack.size(); i++) SQSharedState::MarkObject(_stack[i], chain);
SQSharedState::MarkObject(_closure, chain);
END_MARK()
}
void SQFunctionProto::Mark(SQCollectable **chain)
{
START_MARK()
for(SQInteger i = 0; i < _nliterals; i++) SQSharedState::MarkObject(_literals[i], chain);
for(SQInteger k = 0; k < _nfunctions; k++) SQSharedState::MarkObject(_functions[k], chain);
END_MARK()
}
void SQClosure::Mark(SQCollectable **chain)
{
START_MARK()
if(_base) _base->Mark(chain);
SQFunctionProto *fp = _function;
fp->Mark(chain);
for(SQInteger i = 0; i < fp->_noutervalues; i++) SQSharedState::MarkObject(_outervalues[i], chain);
for(SQInteger k = 0; k < fp->_ndefaultparams; k++) SQSharedState::MarkObject(_defaultparams[k], chain);
END_MARK()
}
void SQNativeClosure::Mark(SQCollectable **chain)
{
START_MARK()
for(SQUnsignedInteger i = 0; i < _noutervalues; i++) SQSharedState::MarkObject(_outervalues[i], chain);
END_MARK()
}
void SQOuter::Mark(SQCollectable **chain)
{
START_MARK()
/* If the valptr points to a closed value, that value is alive */
if(_valptr == &_value) {
SQSharedState::MarkObject(_value, chain);
}
END_MARK()
}
void SQUserData::Mark(SQCollectable **chain){
START_MARK()
if(_delegate) _delegate->Mark(chain);
END_MARK()
}
void SQCollectable::UnMark() { _uiRef&=~MARK_FLAG; }
#endif
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