#include "../BasicCompiler_Common/common.h"
#include "Opcode.h"

int GetFunctionType(int FuncNum){
	switch(FuncNum){
		case FUNC_LEN:
			return DEF_LONG;
		case FUNC_SIZEOF:
			return DEF_LONG;
		case FUNC_ADDRESSOF:
		case FUNC_VARPTR:
			return DEF_PTR_VOID;
		case FUNC_GETDOUBLE:
			return DEF_DOUBLE;
		case FUNC_GETSINGLE:
			return DEF_SINGLE;
		case FUNC_GETQWORD:
			return DEF_QWORD;
		case FUNC_GETDWORD:
			return DEF_DWORD;
		case FUNC_GETWORD:
			return DEF_WORD;
		case FUNC_GETBYTE:
			return DEF_BYTE;
	}
	return 0;
}
int GetFunctionFromName(char *FuncName){
	if(lstrcmpi(FuncName,"Len")==0)			return FUNC_LEN;
	if(lstrcmpi(FuncName,"AddressOf")==0)	return FUNC_ADDRESSOF;
	if(lstrcmpi(FuncName,"SizeOf")==0)		return FUNC_SIZEOF;
	if(lstrcmpi(FuncName,"VarPtr")==0)		return FUNC_VARPTR;
	if(lstrcmpi(FuncName,"GetDouble")==0)	return FUNC_GETDOUBLE;
	if(lstrcmpi(FuncName,"GetSingle")==0)	return FUNC_GETSINGLE;
	if(lstrcmpi(FuncName,"GetQWord")==0)	return FUNC_GETQWORD;
	if(lstrcmpi(FuncName,"GetDWord")==0)	return FUNC_GETDWORD;
	if(lstrcmpi(FuncName,"GetWord")==0)		return FUNC_GETWORD;
	if(lstrcmpi(FuncName,"GetByte")==0)		return FUNC_GETBYTE;
	return 0;
}
void Opcode_Func_Len( const char *Parameter ){
	int type,TypeSize;
	LONG_PTR lpIndex;
	BOOL bArrayHead;

	type=GetVarType(Parameter,&lpIndex,0);

	const char *tempParm=Parameter;
	char temporary[VN_SIZE];
	char temp2[32];
	if(type==-1){
		sprintf(temporary,"_System_DummyStr2=%s",Parameter);
		OpcodeCalc(temporary);

		lstrcpy(temp2,"_System_DummyStr2");
		tempParm=temp2;

		extern CClass *pobj_StringClass;
		type=DEF_OBJECT;
		lpIndex=(LONG_PTR)pobj_StringClass;
	}

	TYPEINFO TypeInfo={type,lpIndex};
	if(IsStringObjectType(&TypeInfo)){
		//Stringオブジェクトの場合
		sprintf(temporary,"%s.Length",tempParm);

		int reg=REG_RAX;
		NumOpe(&reg,temporary,0,0,NULL,NULL);
		return;
	}


	int SubScripts[MAX_ARRAYDIM];
	RELATIVE_VAR RelativeVar;
	if(!GetVarOffsetReadOnly(tempParm,&type,&RelativeVar,&lpIndex,SubScripts)) return;


	if(type&FLAG_PTR){
		type&=~FLAG_PTR;

		bArrayHead=1;
	}
	else bArrayHead=0;

	TypeSize=GetTypeSize(type,lpIndex);

	if(bArrayHead) TypeSize*=JumpSubScripts(SubScripts);

	//mov rax,TypeSize
	op_mov_RV(sizeof(_int64),REG_RAX,TypeSize);

	return;
}
void Opcode_Func_AddressOf( const char *name ){
	extern int cp;
	SUBINFO *psi;

	extern LONG_PTR ProcPtr_BaseIndex;
	if(ProcPtr_BaseIndex!=-1){
		//左辺の型にのっとり、オーバーロードを解決

		std::vector<SUBINFO *> subs;
		GetOverloadSubHash( name, subs );
		if( subs.size() == 0 ){
			SetError(27,name,cp);
			return;
		}

		//オーバーロードを解決
		extern PROCPTRINFO *pProcPtrInfo;
		psi=OverloadSolution(name,subs,pProcPtrInfo[ProcPtr_BaseIndex].pParmInfo,pProcPtrInfo[ProcPtr_BaseIndex].ParmNum,NULL);

		if(!psi){
			SetError(27,name,cp);
			return;
		}
	}
	else{
		psi=GetSubHash(name);
		if(!psi){
			SetError(27,name,cp);
			return;
		}
	}


	if(psi->bVirtual){
		///////////////////////////////
		// 仮想関数の場合
		// thisポインタをrcxにコピー
		///////////////////////////////

		CClass *pobj_c;

		char ObjectName[VN_SIZE];
		int RefType;
		SplitObjectName(name,ObjectName,&RefType);

		if(ObjectName[0]){
			if(lstrcmpi(ObjectName,"Super")==0) goto InClassMember;
			else{
				RELATIVE_VAR RelativeVar;
				int type;
				if(!GetVarOffsetReadOnly(ObjectName,&type,&RelativeVar,(LONG_PTR *)&pobj_c)) return;
				SetVarPtrToReg(REG_RCX,&RelativeVar);

				//参照タイプが整合しているかをチェック
				if(type!=RefType) SetError(104,ObjectName,cp);

				if(type==DEF_PTR_OBJECT){
					//mov rcx,qword ptr[rcx]
					op_mov_RM(sizeof(_int64),REG_RCX,REG_RCX,0,MOD_BASE);
				}
			}
		}
		else{
InClassMember:
			//自身のオブジェクトのThisポインタをrcxにコピー
			SetThisPtrToReg(REG_RCX);

			pobj_c=pobj_CompilingClass;
		}


		//仮想関数（オブジェクトメソッド）
		//pObj->func_table->func1
		//                ->func2
		//                ->func3

		//mov r11,qword ptr[rcx]
		op_mov_RM(sizeof(_int64),REG_R11,REG_RCX,0,MOD_BASE);

		int i2 = pobj_c->GetFuncNumInVtbl( psi );

		//mov rax,qword ptr[r11+func_index]
		if(i2*PTR_SIZE<=0x7F){
			op_mov_RM(sizeof(_int64),REG_RAX,REG_R11,i2*PTR_SIZE,MOD_BASE_DISP8);
		}
		else{
			op_mov_RM(sizeof(_int64),REG_RAX,REG_R11,i2*PTR_SIZE,MOD_BASE_DISP32);
		}
	}
	else{
		//一般の関数

		//mov rax,ProcAddr
		op_mov_RV(sizeof(_int64),REG_RAX,0);
		obp-=sizeof(long);
		pobj_SubAddrSchedule->add(psi,0);
		obp+=sizeof(long);
	}

	psi->bUse=1;
}
void Opcode_Func_SizeOf( const char *Parameter ){
	int type,size;
	LONG_PTR lpIndex;

	type=GetTypeFixed(Parameter,&lpIndex);
	size=GetTypeSize(type,lpIndex);

	//mov rax,size
	op_mov_RV(sizeof(_int64),REG_RAX,size);
}
void Opcode_Func_VarPtr( const char *Parameter, TYPEINFO &ReturnTypeInfo ){
	RELATIVE_VAR RelativeVar;

	//変数のアドレスを取得
	if(!GetVarOffsetReadOnly( Parameter, &ReturnTypeInfo.type, &RelativeVar, &ReturnTypeInfo.u.lpIndex )) return;

	PTR_LEVEL_UP( ReturnTypeInfo.type );

	SetVarPtrToReg(REG_RAX,&RelativeVar);
}
void Opcode_Func_GetPtrData( const char *Parameter, const int type ){
	int i2;

	int reg=REG_RAX;
	i2=NumOpe(&reg,Parameter,0,0,0);
	if(!IsWholeNumberType(i2)){
		extern int cp;
		SetError(11,Parameter,cp);
		return;
	}

	if(type==DEF_DOUBLE){
		//movlpd xmm0,qword ptr[rax]
		op_movlpd_RM(REG_XMM0,REG_RAX,0,MOD_BASE);
	}
	else if(type==DEF_SINGLE){
		//movss xmm0,dword ptr[rax]
		op_movss_RM(REG_XMM0,REG_RAX,0,MOD_BASE);
	}
	else{
		//mov rax,ptr[rax]
		op_mov_RM(GetTypeSize(type,-1),REG_RAX,REG_RAX,0,MOD_BASE);
	}
}

void Opcode_CallFunc( const char *Parameter, const int FuncNum, TYPEINFO &ReturnTypeInfo ){
	switch(FuncNum){
		case FUNC_LEN:
			Opcode_Func_Len(Parameter);
			ReturnTypeInfo.type = DEF_LONG;
			break;
		case FUNC_ADDRESSOF:
			Opcode_Func_AddressOf(Parameter);
			ReturnTypeInfo.type = DEF_PTR_VOID;
			break;
		case FUNC_SIZEOF:
			Opcode_Func_SizeOf(Parameter);
			ReturnTypeInfo.type = DEF_LONG;
			break;
		case FUNC_VARPTR:
			Opcode_Func_VarPtr( Parameter, ReturnTypeInfo );
			break;

		case FUNC_GETDOUBLE:
			Opcode_Func_GetPtrData(Parameter,DEF_DOUBLE);
			ReturnTypeInfo.type = DEF_DOUBLE;
			break;
		case FUNC_GETSINGLE:
			Opcode_Func_GetPtrData(Parameter,DEF_SINGLE);
			ReturnTypeInfo.type = DEF_SINGLE;
			break;
		case FUNC_GETQWORD:
			Opcode_Func_GetPtrData(Parameter,DEF_QWORD);
			ReturnTypeInfo.type = DEF_QWORD;
			break;
		case FUNC_GETDWORD:
			Opcode_Func_GetPtrData(Parameter,DEF_DWORD);
			ReturnTypeInfo.type = DEF_DWORD;
			break;
		case FUNC_GETWORD:
			Opcode_Func_GetPtrData(Parameter,DEF_WORD);
			ReturnTypeInfo.type = DEF_WORD;
			break;
		case FUNC_GETBYTE:
			Opcode_Func_GetPtrData(Parameter,DEF_BYTE);
			ReturnTypeInfo.type = DEF_BYTE;
			break;
	}
}