-/*
- 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");
- 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);
- str->_sharedstate=ss;
- 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(_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);
- _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)
-{
- 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;
- _ci=*v->ci;
- _stack.resize(size);
- for(SQInteger n =0; n<size; n++) {
- _stack._vals[n] = v->_stack[v->_stackbase+n];
- v->_stack[v->_stackbase+n] = _null_;
- }
- SQInteger nvargs = v->ci->_vargs.size;
- SQInteger vargsbase = v->ci->_vargs.base;
- for(SQInteger j = nvargs - 1; j >= 0; j--) {
- _vargsstack.push_back(v->_vargsstack[vargsbase+j]);
- }
- _ci._generator=NULL;
- for(SQInteger i=0;i<_ci._etraps;i++) {
- _etraps.push_back(v->_etraps.top());
- v->_etraps.pop_back();
- }
- _state=eSuspended;
- return true;
-}
-
-bool SQGenerator::Resume(SQVM *v,SQInteger target)
-{
- SQInteger size=_stack.size();
- 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 prevtop=v->_top-v->_stackbase;
- PUSH_CALLINFO(v,_ci);
- SQInteger oldstackbase=v->_stackbase;
- v->_stackbase = v->_top;
- v->ci->_target = (SQInt32)target;
- v->ci->_generator = this;
- v->ci->_vargs.size = (unsigned short)_vargsstack.size();
-
- for(SQInteger i=0;i<_ci._etraps;i++) {
- v->_etraps.push_back(_etraps.top());
- _etraps.pop_back();
- }
- for(SQInteger n =0; n<size; n++) {
- v->_stack[v->_stackbase+n] = _stack._vals[n];
- _stack._vals[0] = _null_;
- }
- while(_vargsstack.size()) {
- v->_vargsstack.push_back(_vargsstack.back());
- _vargsstack.pop_back();
- }
- v->ci->_vargs.base = (unsigned short)(v->_vargsstack.size() - v->ci->_vargs.size);
- v->_top=v->_stackbase+size;
- v->ci->_prevtop = (SQInt32)prevtop;
- v->ci->_prevstkbase = (SQInt32)(v->_stackbase - oldstackbase);
- _state=eRunning;
- if (type(v->_debughook) != OT_NULL && _rawval(v->_debughook) != _rawval(v->ci->_closure))
- 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;
- for(SQInteger i=1;i<_nlineinfos;i++){
- if(_lineinfos[i]._op>=op)
- return line;
- line=_lineinfos[i]._line;
- }
- return line;
-}
-
-#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,SQInteger tag)
-{
- return SafeWrite(v,write,up,&tag,sizeof(tag));
-}
-
-bool CheckTag(HSQUIRRELVM v,SQWRITEFUNC read,SQUserPointer up,SQInteger tag)
-{
- SQInteger 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)
-{
- _CHECK_IO(SafeWrite(v,write,up,&type(o),sizeof(SQObjectType)));
- 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),rsl(_string(o)->_len)));
- break;
- 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)
-{
- SQObjectType t;
- _CHECK_IO(SafeRead(v,read,up,&t,sizeof(SQObjectType)));
- 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(rsl(len)),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_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(_funcproto(_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)));
- 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));
- return true;
-}
-
-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(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,chain);
- SQSharedState::MarkObject(_roottable, chain);
- SQSharedState::MarkObject(temp_reg, chain);
- for(SQUnsignedInteger i = 0; i < _stack.size(); i++) SQSharedState::MarkObject(_stack[i], chain);
- for(SQUnsignedInteger j = 0; j < _vargsstack.size(); j++) SQSharedState::MarkObject(_vargsstack[j], 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< _metamethods.size(); 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);
- for(SQUnsignedInteger j = 0; j < _vargsstack.size(); j++) SQSharedState::MarkObject(_vargsstack[j], chain);
- SQSharedState::MarkObject(_closure, chain);
- END_MARK()
-}
-
-void SQClosure::Mark(SQCollectable **chain)
-{
- START_MARK()
- for(SQUnsignedInteger i = 0; i < _outervalues.size(); i++) SQSharedState::MarkObject(_outervalues[i], chain);
- for(SQUnsignedInteger i = 0; i < _defaultparams.size(); i++) SQSharedState::MarkObject(_defaultparams[i], chain);
- END_MARK()
-}
-
-void SQNativeClosure::Mark(SQCollectable **chain)
-{
- START_MARK()
- for(SQUnsignedInteger i = 0; i < _outervalues.size(); i++) SQSharedState::MarkObject(_outervalues[i], chain);
- END_MARK()
-}
-
-void SQUserData::Mark(SQCollectable **chain){
- START_MARK()
- if(_delegate) _delegate->Mark(chain);
- END_MARK()
-}
-
-void SQCollectable::UnMark() { _uiRef&=~MARK_FLAG; }
-
-#endif
-
+/*\r
+ see copyright notice in squirrel.h\r
+*/\r
+#include "sqpcheader.h"\r
+#include "sqvm.h"\r
+#include "sqstring.h"\r
+#include "sqarray.h"\r
+#include "sqtable.h"\r
+#include "squserdata.h"\r
+#include "sqfuncproto.h"\r
+#include "sqclass.h"\r
+#include "sqclosure.h"\r
+\r
+\r
+const SQChar *IdType2Name(SQObjectType type)\r
+{\r
+ switch(_RAW_TYPE(type))\r
+ {\r
+ case _RT_NULL:return _SC("null");\r
+ case _RT_INTEGER:return _SC("integer");\r
+ case _RT_FLOAT:return _SC("float");\r
+ case _RT_BOOL:return _SC("bool");\r
+ case _RT_STRING:return _SC("string");\r
+ case _RT_TABLE:return _SC("table");\r
+ case _RT_ARRAY:return _SC("array");\r
+ case _RT_GENERATOR:return _SC("generator");\r
+ case _RT_CLOSURE:\r
+ case _RT_NATIVECLOSURE:\r
+ return _SC("function");\r
+ case _RT_USERDATA:\r
+ case _RT_USERPOINTER:\r
+ return _SC("userdata");\r
+ case _RT_THREAD: return _SC("thread");\r
+ case _RT_FUNCPROTO: return _SC("function");\r
+ case _RT_CLASS: return _SC("class");\r
+ case _RT_INSTANCE: return _SC("instance");\r
+ case _RT_WEAKREF: return _SC("weakref");\r
+ default:\r
+ return NULL;\r
+ }\r
+}\r
+\r
+const SQChar *GetTypeName(const SQObjectPtr &obj1)\r
+{\r
+ return IdType2Name(type(obj1)); \r
+}\r
+\r
+SQString *SQString::Create(SQSharedState *ss,const SQChar *s,SQInteger len)\r
+{\r
+ SQString *str=ADD_STRING(ss,s,len);\r
+ str->_sharedstate=ss;\r
+ return str;\r
+}\r
+\r
+void SQString::Release()\r
+{\r
+ REMOVE_STRING(_sharedstate,this);\r
+}\r
+\r
+SQInteger SQString::Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)\r
+{\r
+ SQInteger idx = (SQInteger)TranslateIndex(refpos);\r
+ while(idx < _len){\r
+ outkey = (SQInteger)idx;\r
+ outval = SQInteger(_val[idx]);\r
+ //return idx for the next iteration\r
+ return ++idx;\r
+ }\r
+ //nothing to iterate anymore\r
+ return -1;\r
+}\r
+\r
+SQUnsignedInteger TranslateIndex(const SQObjectPtr &idx)\r
+{\r
+ switch(type(idx)){\r
+ case OT_NULL:\r
+ return 0;\r
+ case OT_INTEGER:\r
+ return (SQUnsignedInteger)_integer(idx);\r
+ default: assert(0); break;\r
+ }\r
+ return 0;\r
+}\r
+\r
+SQWeakRef *SQRefCounted::GetWeakRef(SQObjectType type)\r
+{\r
+ if(!_weakref) {\r
+ sq_new(_weakref,SQWeakRef);\r
+ _weakref->_obj._type = type;\r
+ _weakref->_obj._unVal.pRefCounted = this;\r
+ }\r
+ return _weakref;\r
+}\r
+\r
+SQRefCounted::~SQRefCounted()\r
+{\r
+ if(_weakref) {\r
+ _weakref->_obj._type = OT_NULL;\r
+ _weakref->_obj._unVal.pRefCounted = NULL;\r
+ }\r
+}\r
+\r
+void SQWeakRef::Release() { \r
+ if(ISREFCOUNTED(_obj._type)) { \r
+ _obj._unVal.pRefCounted->_weakref = NULL;\r
+ } \r
+ sq_delete(this,SQWeakRef);\r
+}\r
+\r
+bool SQDelegable::GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res) {\r
+ if(_delegate) {\r
+ return _delegate->Get((*_ss(v)->_metamethods)[mm],res);\r
+ }\r
+ return false;\r
+}\r
+\r
+bool SQDelegable::SetDelegate(SQTable *mt)\r
+{\r
+ SQTable *temp = mt;\r
+ if(temp == this) return false;\r
+ while (temp) {\r
+ if (temp->_delegate == this) return false; //cycle detected\r
+ temp = temp->_delegate;\r
+ }\r
+ if (mt) __ObjAddRef(mt);\r
+ __ObjRelease(_delegate);\r
+ _delegate = mt;\r
+ return true;\r
+}\r
+\r
+bool SQGenerator::Yield(SQVM *v)\r
+{\r
+ if(_state==eSuspended) { v->Raise_Error(_SC("internal vm error, yielding dead generator")); return false;}\r
+ if(_state==eDead) { v->Raise_Error(_SC("internal vm error, yielding a dead generator")); return false; }\r
+ SQInteger size = v->_top-v->_stackbase;\r
+ _ci=*v->ci;\r
+ _stack.resize(size);\r
+ for(SQInteger n =0; n<size; n++) {\r
+ _stack._vals[n] = v->_stack[v->_stackbase+n];\r
+ v->_stack[v->_stackbase+n] = _null_;\r
+ }\r
+ SQInteger nvargs = v->ci->_vargs.size;\r
+ SQInteger vargsbase = v->ci->_vargs.base;\r
+ for(SQInteger j = nvargs - 1; j >= 0; j--) {\r
+ _vargsstack.push_back(v->_vargsstack[vargsbase+j]);\r
+ }\r
+ _ci._generator=NULL;\r
+ for(SQInteger i=0;i<_ci._etraps;i++) {\r
+ _etraps.push_back(v->_etraps.top());\r
+ v->_etraps.pop_back();\r
+ }\r
+ _state=eSuspended;\r
+ return true;\r
+}\r
+\r
+bool SQGenerator::Resume(SQVM *v,SQInteger target)\r
+{\r
+ SQInteger size=_stack.size();\r
+ if(_state==eDead){ v->Raise_Error(_SC("resuming dead generator")); return false; }\r
+ if(_state==eRunning){ v->Raise_Error(_SC("resuming active generator")); return false; }\r
+ SQInteger prevtop=v->_top-v->_stackbase;\r
+ PUSH_CALLINFO(v,_ci);\r
+ SQInteger oldstackbase=v->_stackbase;\r
+ v->_stackbase = v->_top;\r
+ v->ci->_target = (SQInt32)target;\r
+ v->ci->_generator = this;\r
+ v->ci->_vargs.size = (unsigned short)_vargsstack.size();\r
+ \r
+ for(SQInteger i=0;i<_ci._etraps;i++) {\r
+ v->_etraps.push_back(_etraps.top());\r
+ _etraps.pop_back();\r
+ }\r
+ for(SQInteger n =0; n<size; n++) {\r
+ v->_stack[v->_stackbase+n] = _stack._vals[n];\r
+ _stack._vals[0] = _null_;\r
+ }\r
+ while(_vargsstack.size()) {\r
+ v->_vargsstack.push_back(_vargsstack.back());\r
+ _vargsstack.pop_back();\r
+ }\r
+ v->ci->_vargs.base = (unsigned short)(v->_vargsstack.size() - v->ci->_vargs.size);\r
+ v->_top=v->_stackbase+size;\r
+ v->ci->_prevtop = (SQInt32)prevtop;\r
+ v->ci->_prevstkbase = (SQInt32)(v->_stackbase - oldstackbase);\r
+ _state=eRunning;\r
+ if (type(v->_debughook) != OT_NULL && _rawval(v->_debughook) != _rawval(v->ci->_closure))\r
+ v->CallDebugHook(_SC('c'));\r
+\r
+ return true;\r
+}\r
+\r
+void SQArray::Extend(const SQArray *a){\r
+ SQInteger xlen;\r
+ if((xlen=a->Size()))\r
+ for(SQInteger i=0;i<xlen;i++)\r
+ Append(a->_values[i]);\r
+}\r
+\r
+const SQChar* SQFunctionProto::GetLocal(SQVM *vm,SQUnsignedInteger stackbase,SQUnsignedInteger nseq,SQUnsignedInteger nop)\r
+{\r
+ SQUnsignedInteger nvars=_nlocalvarinfos;\r
+ const SQChar *res=NULL; \r
+ if(nvars>=nseq){\r
+ for(SQUnsignedInteger i=0;i<nvars;i++){\r
+ if(_localvarinfos[i]._start_op<=nop && _localvarinfos[i]._end_op>=nop)\r
+ {\r
+ if(nseq==0){\r
+ vm->Push(vm->_stack[stackbase+_localvarinfos[i]._pos]);\r
+ res=_stringval(_localvarinfos[i]._name);\r
+ break;\r
+ }\r
+ nseq--;\r
+ }\r
+ }\r
+ }\r
+ return res;\r
+}\r
+\r
+SQInteger SQFunctionProto::GetLine(SQInstruction *curr)\r
+{\r
+ SQInteger op = (SQInteger)(curr-_instructions);\r
+ SQInteger line=_lineinfos[0]._line;\r
+ for(SQInteger i=1;i<_nlineinfos;i++){\r
+ if(_lineinfos[i]._op>=op)\r
+ return line;\r
+ line=_lineinfos[i]._line;\r
+ }\r
+ return line;\r
+}\r
+\r
+#define _CHECK_IO(exp) { if(!exp)return false; }\r
+bool SafeWrite(HSQUIRRELVM v,SQWRITEFUNC write,SQUserPointer up,SQUserPointer dest,SQInteger size)\r
+{\r
+ if(write(up,dest,size) != size) {\r
+ v->Raise_Error(_SC("io error (write function failure)"));\r
+ return false;\r
+ }\r
+ return true;\r
+}\r
+\r
+bool SafeRead(HSQUIRRELVM v,SQWRITEFUNC read,SQUserPointer up,SQUserPointer dest,SQInteger size)\r
+{\r
+ if(size && read(up,dest,size) != size) {\r
+ v->Raise_Error(_SC("io error, read function failure, the origin stream could be corrupted/trucated"));\r
+ return false;\r
+ }\r
+ return true;\r
+}\r
+\r
+bool WriteTag(HSQUIRRELVM v,SQWRITEFUNC write,SQUserPointer up,SQInteger tag)\r
+{\r
+ return SafeWrite(v,write,up,&tag,sizeof(tag));\r
+}\r
+\r
+bool CheckTag(HSQUIRRELVM v,SQWRITEFUNC read,SQUserPointer up,SQInteger tag)\r
+{\r
+ SQInteger t;\r
+ _CHECK_IO(SafeRead(v,read,up,&t,sizeof(t)));\r
+ if(t != tag){\r
+ v->Raise_Error(_SC("invalid or corrupted closure stream"));\r
+ return false;\r
+ }\r
+ return true;\r
+}\r
+\r
+bool WriteObject(HSQUIRRELVM v,SQUserPointer up,SQWRITEFUNC write,SQObjectPtr &o)\r
+{\r
+ _CHECK_IO(SafeWrite(v,write,up,&type(o),sizeof(SQObjectType)));\r
+ switch(type(o)){\r
+ case OT_STRING:\r
+ _CHECK_IO(SafeWrite(v,write,up,&_string(o)->_len,sizeof(SQInteger)));\r
+ _CHECK_IO(SafeWrite(v,write,up,_stringval(o),rsl(_string(o)->_len)));\r
+ break;\r
+ case OT_INTEGER:\r
+ _CHECK_IO(SafeWrite(v,write,up,&_integer(o),sizeof(SQInteger)));break;\r
+ case OT_FLOAT:\r
+ _CHECK_IO(SafeWrite(v,write,up,&_float(o),sizeof(SQFloat)));break;\r
+ case OT_NULL:\r
+ break;\r
+ default:\r
+ v->Raise_Error(_SC("cannot serialize a %s"),GetTypeName(o));\r
+ return false;\r
+ }\r
+ return true;\r
+}\r
+\r
+bool ReadObject(HSQUIRRELVM v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &o)\r
+{\r
+ SQObjectType t;\r
+ _CHECK_IO(SafeRead(v,read,up,&t,sizeof(SQObjectType)));\r
+ switch(t){\r
+ case OT_STRING:{\r
+ SQInteger len;\r
+ _CHECK_IO(SafeRead(v,read,up,&len,sizeof(SQInteger)));\r
+ _CHECK_IO(SafeRead(v,read,up,_ss(v)->GetScratchPad(rsl(len)),rsl(len)));\r
+ o=SQString::Create(_ss(v),_ss(v)->GetScratchPad(-1),len);\r
+ }\r
+ break;\r
+ case OT_INTEGER:{\r
+ SQInteger i;\r
+ _CHECK_IO(SafeRead(v,read,up,&i,sizeof(SQInteger))); o = i; break;\r
+ }\r
+ case OT_FLOAT:{\r
+ SQFloat f;\r
+ _CHECK_IO(SafeRead(v,read,up,&f,sizeof(SQFloat))); o = f; break;\r
+ }\r
+ case OT_NULL:\r
+ o=_null_;\r
+ break;\r
+ default:\r
+ v->Raise_Error(_SC("cannot serialize a %s"),IdType2Name(t));\r
+ return false;\r
+ }\r
+ return true;\r
+}\r
+\r
+bool SQClosure::Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write)\r
+{\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_HEAD));\r
+ _CHECK_IO(WriteTag(v,write,up,sizeof(SQChar)));\r
+ _CHECK_IO(_funcproto(_function)->Save(v,up,write));\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_TAIL));\r
+ return true;\r
+}\r
+\r
+bool SQClosure::Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret)\r
+{\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_HEAD));\r
+ _CHECK_IO(CheckTag(v,read,up,sizeof(SQChar)));\r
+ SQObjectPtr func;\r
+ _CHECK_IO(SQFunctionProto::Load(v,up,read,func));\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_TAIL));\r
+ ret = SQClosure::Create(_ss(v),_funcproto(func));\r
+ return true;\r
+}\r
+\r
+bool SQFunctionProto::Save(SQVM *v,SQUserPointer up,SQWRITEFUNC write)\r
+{\r
+ SQInteger i,nliterals = _nliterals,nparameters = _nparameters;\r
+ SQInteger noutervalues = _noutervalues,nlocalvarinfos = _nlocalvarinfos;\r
+ SQInteger nlineinfos=_nlineinfos,ninstructions = _ninstructions,nfunctions=_nfunctions;\r
+ SQInteger ndefaultparams = _ndefaultparams;\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(WriteObject(v,up,write,_sourcename));\r
+ _CHECK_IO(WriteObject(v,up,write,_name));\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeWrite(v,write,up,&nliterals,sizeof(nliterals)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&nparameters,sizeof(nparameters)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&noutervalues,sizeof(noutervalues)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&nlocalvarinfos,sizeof(nlocalvarinfos)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&nlineinfos,sizeof(nlineinfos)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&ndefaultparams,sizeof(ndefaultparams)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&ninstructions,sizeof(ninstructions)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&nfunctions,sizeof(nfunctions)));\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ for(i=0;i<nliterals;i++){\r
+ _CHECK_IO(WriteObject(v,up,write,_literals[i]));\r
+ }\r
+\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ for(i=0;i<nparameters;i++){\r
+ _CHECK_IO(WriteObject(v,up,write,_parameters[i]));\r
+ }\r
+\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ for(i=0;i<noutervalues;i++){\r
+ _CHECK_IO(SafeWrite(v,write,up,&_outervalues[i]._type,sizeof(SQUnsignedInteger)));\r
+ _CHECK_IO(WriteObject(v,up,write,_outervalues[i]._src));\r
+ _CHECK_IO(WriteObject(v,up,write,_outervalues[i]._name));\r
+ }\r
+\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ for(i=0;i<nlocalvarinfos;i++){\r
+ SQLocalVarInfo &lvi=_localvarinfos[i];\r
+ _CHECK_IO(WriteObject(v,up,write,lvi._name));\r
+ _CHECK_IO(SafeWrite(v,write,up,&lvi._pos,sizeof(SQUnsignedInteger)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&lvi._start_op,sizeof(SQUnsignedInteger)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&lvi._end_op,sizeof(SQUnsignedInteger)));\r
+ }\r
+\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeWrite(v,write,up,_lineinfos,sizeof(SQLineInfo)*nlineinfos));\r
+\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeWrite(v,write,up,_defaultparams,sizeof(SQInteger)*ndefaultparams));\r
+\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeWrite(v,write,up,_instructions,sizeof(SQInstruction)*ninstructions));\r
+\r
+ _CHECK_IO(WriteTag(v,write,up,SQ_CLOSURESTREAM_PART));\r
+ for(i=0;i<nfunctions;i++){\r
+ _CHECK_IO(_funcproto(_functions[i])->Save(v,up,write));\r
+ }\r
+ _CHECK_IO(SafeWrite(v,write,up,&_stacksize,sizeof(_stacksize)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&_bgenerator,sizeof(_bgenerator)));\r
+ _CHECK_IO(SafeWrite(v,write,up,&_varparams,sizeof(_varparams)));\r
+ return true;\r
+}\r
+\r
+bool SQFunctionProto::Load(SQVM *v,SQUserPointer up,SQREADFUNC read,SQObjectPtr &ret)\r
+{\r
+ SQInteger i, nliterals,nparameters;\r
+ SQInteger noutervalues ,nlocalvarinfos ;\r
+ SQInteger nlineinfos,ninstructions ,nfunctions,ndefaultparams ;\r
+ SQObjectPtr sourcename, name;\r
+ SQObjectPtr o;\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(ReadObject(v, up, read, sourcename));\r
+ _CHECK_IO(ReadObject(v, up, read, name));\r
+ \r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeRead(v,read,up, &nliterals, sizeof(nliterals)));\r
+ _CHECK_IO(SafeRead(v,read,up, &nparameters, sizeof(nparameters)));\r
+ _CHECK_IO(SafeRead(v,read,up, &noutervalues, sizeof(noutervalues)));\r
+ _CHECK_IO(SafeRead(v,read,up, &nlocalvarinfos, sizeof(nlocalvarinfos)));\r
+ _CHECK_IO(SafeRead(v,read,up, &nlineinfos, sizeof(nlineinfos)));\r
+ _CHECK_IO(SafeRead(v,read,up, &ndefaultparams, sizeof(ndefaultparams)));\r
+ _CHECK_IO(SafeRead(v,read,up, &ninstructions, sizeof(ninstructions)));\r
+ _CHECK_IO(SafeRead(v,read,up, &nfunctions, sizeof(nfunctions)));\r
+ \r
+\r
+ SQFunctionProto *f = SQFunctionProto::Create(ninstructions,nliterals,nparameters,\r
+ nfunctions,noutervalues,nlineinfos,nlocalvarinfos,ndefaultparams);\r
+ SQObjectPtr proto = f; //gets a ref in case of failure\r
+ f->_sourcename = sourcename;\r
+ f->_name = name;\r
+\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+\r
+ for(i = 0;i < nliterals; i++){\r
+ _CHECK_IO(ReadObject(v, up, read, o));\r
+ f->_literals[i] = o;\r
+ }\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+\r
+ for(i = 0; i < nparameters; i++){\r
+ _CHECK_IO(ReadObject(v, up, read, o));\r
+ f->_parameters[i] = o;\r
+ }\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+\r
+ for(i = 0; i < noutervalues; i++){\r
+ SQUnsignedInteger type;\r
+ SQObjectPtr name;\r
+ _CHECK_IO(SafeRead(v,read,up, &type, sizeof(SQUnsignedInteger)));\r
+ _CHECK_IO(ReadObject(v, up, read, o));\r
+ _CHECK_IO(ReadObject(v, up, read, name));\r
+ f->_outervalues[i] = SQOuterVar(name,o, (SQOuterType)type);\r
+ }\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+\r
+ for(i = 0; i < nlocalvarinfos; i++){\r
+ SQLocalVarInfo lvi;\r
+ _CHECK_IO(ReadObject(v, up, read, lvi._name));\r
+ _CHECK_IO(SafeRead(v,read,up, &lvi._pos, sizeof(SQUnsignedInteger)));\r
+ _CHECK_IO(SafeRead(v,read,up, &lvi._start_op, sizeof(SQUnsignedInteger)));\r
+ _CHECK_IO(SafeRead(v,read,up, &lvi._end_op, sizeof(SQUnsignedInteger)));\r
+ f->_localvarinfos[i] = lvi;\r
+ }\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeRead(v,read,up, f->_lineinfos, sizeof(SQLineInfo)*nlineinfos));\r
+\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeRead(v,read,up, f->_defaultparams, sizeof(SQInteger)*ndefaultparams));\r
+\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+ _CHECK_IO(SafeRead(v,read,up, f->_instructions, sizeof(SQInstruction)*ninstructions));\r
+\r
+ _CHECK_IO(CheckTag(v,read,up,SQ_CLOSURESTREAM_PART));\r
+ for(i = 0; i < nfunctions; i++){\r
+ _CHECK_IO(_funcproto(o)->Load(v, up, read, o));\r
+ f->_functions[i] = o;\r
+ }\r
+ _CHECK_IO(SafeRead(v,read,up, &f->_stacksize, sizeof(f->_stacksize)));\r
+ _CHECK_IO(SafeRead(v,read,up, &f->_bgenerator, sizeof(f->_bgenerator)));\r
+ _CHECK_IO(SafeRead(v,read,up, &f->_varparams, sizeof(f->_varparams)));\r
+ \r
+ ret = f;\r
+ return true;\r
+}\r
+\r
+#ifndef NO_GARBAGE_COLLECTOR\r
+\r
+#define START_MARK() if(!(_uiRef&MARK_FLAG)){ \\r
+ _uiRef|=MARK_FLAG;\r
+\r
+#define END_MARK() RemoveFromChain(&_sharedstate->_gc_chain, this); \\r
+ AddToChain(chain, this); }\r
+\r
+void SQVM::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ SQSharedState::MarkObject(_lasterror,chain);\r
+ SQSharedState::MarkObject(_errorhandler,chain);\r
+ SQSharedState::MarkObject(_debughook,chain);\r
+ SQSharedState::MarkObject(_roottable, chain);\r
+ SQSharedState::MarkObject(temp_reg, chain);\r
+ for(SQUnsignedInteger i = 0; i < _stack.size(); i++) SQSharedState::MarkObject(_stack[i], chain);\r
+ for(SQUnsignedInteger j = 0; j < _vargsstack.size(); j++) SQSharedState::MarkObject(_vargsstack[j], chain);\r
+ for(SQInteger k = 0; k < _callsstacksize; k++) SQSharedState::MarkObject(_callsstack[k]._closure, chain);\r
+ END_MARK()\r
+}\r
+\r
+void SQArray::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ SQInteger len = _values.size();\r
+ for(SQInteger i = 0;i < len; i++) SQSharedState::MarkObject(_values[i], chain);\r
+ END_MARK()\r
+}\r
+void SQTable::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ if(_delegate) _delegate->Mark(chain);\r
+ SQInteger len = _numofnodes;\r
+ for(SQInteger i = 0; i < len; i++){\r
+ SQSharedState::MarkObject(_nodes[i].key, chain);\r
+ SQSharedState::MarkObject(_nodes[i].val, chain);\r
+ }\r
+ END_MARK()\r
+}\r
+\r
+void SQClass::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ _members->Mark(chain);\r
+ if(_base) _base->Mark(chain);\r
+ SQSharedState::MarkObject(_attributes, chain);\r
+ for(SQUnsignedInteger i =0; i< _defaultvalues.size(); i++) {\r
+ SQSharedState::MarkObject(_defaultvalues[i].val, chain);\r
+ SQSharedState::MarkObject(_defaultvalues[i].attrs, chain);\r
+ }\r
+ for(SQUnsignedInteger j =0; j< _methods.size(); j++) {\r
+ SQSharedState::MarkObject(_methods[j].val, chain);\r
+ SQSharedState::MarkObject(_methods[j].attrs, chain);\r
+ }\r
+ for(SQUnsignedInteger k =0; k< _metamethods.size(); k++) {\r
+ SQSharedState::MarkObject(_metamethods[k], chain);\r
+ }\r
+ END_MARK()\r
+}\r
+\r
+void SQInstance::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ _class->Mark(chain);\r
+ SQUnsignedInteger nvalues = _class->_defaultvalues.size();\r
+ for(SQUnsignedInteger i =0; i< nvalues; i++) {\r
+ SQSharedState::MarkObject(_values[i], chain);\r
+ }\r
+ END_MARK()\r
+}\r
+\r
+void SQGenerator::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ for(SQUnsignedInteger i = 0; i < _stack.size(); i++) SQSharedState::MarkObject(_stack[i], chain);\r
+ for(SQUnsignedInteger j = 0; j < _vargsstack.size(); j++) SQSharedState::MarkObject(_vargsstack[j], chain);\r
+ SQSharedState::MarkObject(_closure, chain);\r
+ END_MARK()\r
+}\r
+\r
+void SQClosure::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ for(SQUnsignedInteger i = 0; i < _outervalues.size(); i++) SQSharedState::MarkObject(_outervalues[i], chain);\r
+ for(SQUnsignedInteger i = 0; i < _defaultparams.size(); i++) SQSharedState::MarkObject(_defaultparams[i], chain);\r
+ END_MARK()\r
+}\r
+\r
+void SQNativeClosure::Mark(SQCollectable **chain)\r
+{\r
+ START_MARK()\r
+ for(SQUnsignedInteger i = 0; i < _outervalues.size(); i++) SQSharedState::MarkObject(_outervalues[i], chain);\r
+ END_MARK()\r
+}\r
+\r
+void SQUserData::Mark(SQCollectable **chain){\r
+ START_MARK()\r
+ if(_delegate) _delegate->Mark(chain);\r
+ END_MARK()\r
+}\r
+\r
+void SQCollectable::UnMark() { _uiRef&=~MARK_FLAG; }\r
+\r
+#endif\r
+\r
projects / supertux.git / blobdiff