#include "common.h"

#ifdef _AMD64_
#include "../BasicCompiler64/opcode.h"
#else
#include "../BasicCompiler32/opcode.h"
#endif

ParamImpl::ParamImpl(const char *buffer):
	returnType()
{
	///////////////////////////
	// パラメータ文字列を整理
	///////////////////////////

	extern HANDLE hHeap;
	int i,i2,i3;
	char temporary[VN_SIZE];

	i=0;
	ParmsNum=0;
	while(1){
		if(buffer[i]=='\0') break;

		for(i2=0;;i2++,i++){
			if(buffer[i]=='\"'){
				temporary[i2]=buffer[i];
				for(i++,i2++;;i++,i2++){
					temporary[i2]=buffer[i];
					if(buffer[i]=='\"') break;
				}
				continue;
			}

			if(buffer[i]=='('){
				i3=GetStringInPare(temporary+i2,buffer+i);
				i2+=i3-1;
				i+=i3-1;
				continue;
			}
			if(buffer[i]=='['){
				i3=GetStringInBracket(temporary+i2,buffer+i);
				i2+=i3-1;
				i+=i3-1;
				continue;
			}

			if(buffer[i]==','||buffer[i]=='\0'){
				temporary[i2]=0;
				break;
			}
			temporary[i2]=buffer[i];
		}

		Parms[ParmsNum]=(char *)HeapAlloc(hHeap,0,lstrlen(temporary)+1);
		lstrcpy(Parms[ParmsNum],temporary);
		ParmsNum++;

		types.push_back( Type() );

		if(buffer[i]==',') i++;
	}
}
ParamImpl::ParamImpl(const Parameters &params):
	returnType()
{
	ParmsNum = 0;
	foreach( Parameter *pParam, params ){
		Parms[ParmsNum]=0;
		ParmsNum++;

		types.push_back( *pParam );
	}
}
ParamImpl::~ParamImpl(){
	int i2;

	//パラメータ文字列を解放
	for(i2=0;i2<ParmsNum;i2++){
		if(Parms[i2]==(char *)-1) continue;

		if(Parms[i2]) HeapDefaultFree(Parms[i2]);
	}
}

void ParamImpl::SetReturnType( const Type &returnType ){
	this->returnType = returnType;
}

bool ParamImpl::_overload_check( int level, const Parameters &targetParms, const Type &targetResultType ){
	//パラメータを識別してオーバーロードを解決

	//パラメータの個数が不一致の場合
	int max = (int)targetParms.size();
	if(max!=ParmsNum){
		return false;
	}

	Type argType;
	for(int i=0;i<max;i++){
		Parameter &param = *targetParms[i];

		if(Parms[i]){
			Type nullParam( DEF_NON );

			NumOpe_GetType(Parms[i],
				(level==OVERLOAD_LEVEL0)? nullParam : param,
				argType);
		}
		else{
			argType = types[i];
		}

		if(argType.GetBasicType()!=param.GetBasicType()){
			if(level==OVERLOAD_LEVEL1 || level == OVERLOAD_LEVEL0){
				return false;
			}
			else if(level==OVERLOAD_LEVEL2){
				if(!(
					IsWholeNumberType(argType.GetBasicType())&&IsWholeNumberType(param.GetBasicType())||
					IsRealNumberType(argType.GetBasicType())&&IsRealNumberType(param.GetBasicType())
					)){
						return false;
				}
			}
			else if(level==OVERLOAD_LEVEL3){
				if(argType.GetBasicType()==DEF_OBJECT||param.GetBasicType()==DEF_OBJECT) return 0;
			}
		}
		else{
			if(NATURAL_TYPE(argType.GetBasicType())==DEF_OBJECT || NATURAL_TYPE(argType.GetBasicType())==DEF_STRUCT){
				if(argType.GetIndex()!=param.GetIndex()){
					return false;
				}
			}
		}
	}

	if( !targetResultType.IsNull() ){
		//戻り値も比較対象にする
		if( !returnType.Equals( targetResultType ) ){
			return false;
		}
	}

	return true;
}

UserProc *ParamImpl::OverloadSolutionWithReturnType( const char *name, std::vector<UserProc *> &subs ){
	int sw=0;
	UserProc *pUserProc = NULL;

	for( int level=OVERLOAD_MIN_LEVEL; level<=OVERLOAD_MAX_LEVEL; level++ ){
		foreach( UserProc *pTempUserProc, subs ){

			//エラーチェック
			if(_overload_check( level, pTempUserProc->Params(), pTempUserProc->ReturnType() )){
				if(sw){
					SetError(52,name,cp);
					return 0;
				}
				sw=1;

				pUserProc = pTempUserProc;
				break;
			}
		}

		if( sw ) break;
	}

	if(!sw){
		SetError(52,name,cp);
		return 0;
	}

	return pUserProc;
}
UserProc *ParamImpl::OverloadSolution( const char *name, std::vector<UserProc *> &subs ){
	int sw=0;
	UserProc *pUserProc;
	pUserProc=0;

	for( int level=OVERLOAD_MIN_LEVEL; level<=OVERLOAD_MAX_LEVEL; level++ ){

		foreach( UserProc *pTempUserProc, subs ){

			//エラーチェック
			if(_overload_check( level, pTempUserProc->Params(), Type() )){
				if(sw){
					return OverloadSolutionWithReturnType(name,subs);
				}
				sw=1;

				pUserProc = pTempUserProc;
			}
		}

		if( sw ) break;
	}

	if(!sw){
		foreach( UserProc *pTempUserProc, subs ){

			//エラーチェック
			if(pTempUserProc->Params().size()==this->ParmsNum){
				if(sw){
					sw=0;
					break;
				}
				sw=1;

				pUserProc=pTempUserProc;
			}
		}
	}

	if(!sw){
		SetError(52,name,cp);
		return 0;
	}

	return pUserProc;
}

bool ParamImpl::ErrorCheck( const string &procName, const Parameters &params, int SecondParmNum ){
	if( SecondParmNum == -1 ) SecondParmNum = (int)params.size();

	if(ParmsNum>(int)params.size()){
		if(params[params.size()-1]->GetBasicType()!=DEF_ELLIPSE){
			//パラメータが多すぎるとき
			SetError(10,procName,cp);
			return false;
		}
	}
	else if(ParmsNum<(int)params.size()){
		if(ParmsNum<SecondParmNum){
			if(params[ParmsNum]->GetBasicType()==DEF_ELLIPSE){
				return true;
			}

			//パラメータが少なすぎるとき
			SetError(10,procName,cp);
			return false;
		}

		//省略パラメータに "0" を指定する
		for(;ParmsNum < (int)params.size();ParmsNum++){
			extern HANDLE hHeap;
			char temporary[64];
			if(params[ParmsNum]->IsRef() == false) lstrcpy(temporary,"0");
			else sprintf(temporary,"%c%c0",1,ESC_BYVAL);
			Parms[ParmsNum]=(char *)HeapAlloc(hHeap,0,lstrlen(temporary)+1);
			lstrcpy(Parms[ParmsNum],temporary);
		}
	}

	return true;
}

void ParamImpl::MacroParameterSupport( const Parameters &params ){
	for(int i=0;i<ParmsNum;i++){
		if(Parms[i][0]=='\0'){
			extern HANDLE hHeap;
			char temporary[64];
			if( params[i]->IsRef() == false ) lstrcpy(temporary,"0");
			else sprintf(temporary,"%c%c0",1,ESC_BYVAL);
			HeapDefaultFree(Parms[i]);
			Parms[i]=(char *)HeapAlloc(hHeap,0,lstrlen(temporary)+1);
			lstrcpy(Parms[i],temporary);
		}
	}
}