source: dev/trunk/ab5.0/abdev/ab_common/src/Lexical/Variable.cpp

#include "stdafx.h"

Variable::Variable( const Symbol &symbol, const Type &type, bool isConst, bool isRef, const std::string &paramStrForConstructor, bool hasInitData )
    : RelationalObjectModuleItem( symbol )
    , type( type )
    , isConst( isConst )
    , isRef( isRef )
    , isArray( false )
    , isParameter( false)
    , paramStrForConstructor( paramStrForConstructor )
    , hasInitData( hasInitData )
{
}

Variable::Variable( const Variable &var )
    : RelationalObjectModuleItem( var )
    , type( var.type )
    , isConst( var.isConst )
    , isRef( var.isRef )
    , isArray( var.isArray )
    , subscripts( var.subscripts )
    , isParameter( false )
    , paramStrForConstructor( var.paramStrForConstructor )
    , hasInitData( var.hasInitData )
{
}

Variable::Variable(Variable&& var)
    : RelationalObjectModuleItem(std::move(var))
    , type(std::move(var.type))
    , isConst(std::move(var.isConst))
    , isRef(std::move(var.isRef))
    , isArray(std::move(var.isArray))
    , subscripts(std::move(var.subscripts))
    , isParameter(std::move(var.isParameter))
    , paramStrForConstructor(std::move(var.paramStrForConstructor))
    , hasInitData(std::move(var.hasInitData))
{
}

Variable::Variable()
{
}

Variable& Variable::operator =(Variable&& var)
{
    RelationalObjectModuleItem::operator =(std::move(var));
    type = std::move(var.type);
    isConst = std::move(var.isConst);
    isRef = std::move(var.isRef);
    isArray = std::move(var.isArray);
    subscripts = std::move(var.subscripts);
    isParameter = std::move(var.isParameter);
    paramStrForConstructor = std::move(var.paramStrForConstructor);
    hasInitData = std::move(var.hasInitData);
    return *this;
}

bool Variable::Resolve( const ObjectModule &resolver, ResolveErrors &resolveErrors )
{
    this->type.Resolve( resolver, resolveErrors );
    return true;
}


bool Variables::DuplicateCheck( const Symbol &symbol, int nowScopeLevel ) const
{
    //レキシカルスコープを考慮して重複判定
    for( int i=(int)this->size()-1; i>=0 ; i-- ){
        const Variable *pVar = (*this)[i];
        if( pVar->isLiving                                  //現在のスコープで有効なもの
            && pVar->GetScopeLevel() == nowScopeLevel       //現在のスコープと同一レベル
            )
        {
            if( pVar->IsEqualSymbol( symbol ) ){
                return true;
            }
        }
    }
    return false;
}

const Variable *Variables::BackSearch( const Symbol &symbol, int nowScopeLevel ) const
{
    //レキシカルスコープを考慮してバックサーチ
    for( int i=(int)this->size()-1; i>=0 ; i-- ){
        const Variable *pVar = (*this)[i];
        if( pVar->isLiving                                  //現在のスコープで有効なもの
            && pVar->GetScopeLevel() <= nowScopeLevel       //現在のスコープレベルを超さないもの（Returnによる解放処理中を考慮）
            ){
                if( pVar->IsEqualSymbol( symbol ) ){
                    return pVar;
                }
        }
    }
    return NULL;
}

const Variable *Variables::Find( const Symbol &symbol )const
{
    int max = (int)this->size();
    for( int i=0; i<max; i++ ){
        Variable *pVar = (*this)[i];
        if( pVar->IsEqualSymbol( symbol ) ){
            return pVar;
        }
    }
    return NULL;
}

void GlobalVars::Add( Variable *pVar, bool isResetOffsetAddress )
{
    int alignment = 0;
    if( pVar->GetType().IsStruct() ){
        alignment = pVar->GetType().GetClass().GetFixedAlignment();
    }

    if( pVar->HasInitData() ){
        //初期バッファがあるとき

        if( isResetOffsetAddress )
        {
            if( alignment ){
                if( initAreaBuffer.GetSize() % alignment ){
                    initAreaBuffer.Resize( initAreaBuffer.GetSize() + ( alignment - (initAreaBuffer.GetSize() % alignment) ) );
                }
            }

            pVar->SetOffsetAddress( initAreaBuffer.GetSize() );

            initAreaBuffer.Resize( initAreaBuffer.GetSize() + pVar->GetMemorySize() );
        }
    }
    else{
        //初期バッファがないとき

        if( alignment ){
            if( allSize % alignment ){
                allSize += alignment - (allSize % alignment);
            }
        }

        pVar->SetOffsetAddress( allSize | 0x80000000 );
        allSize += pVar->GetMemorySize();
    }

    push_back( pVar );
}