source: dev/trunk/jenga/src/smoothie/LexicalScoping.cpp@ 183

#include <jenga/include/smoothie/LexicalScoping.h>
#include <jenga/include/smoothie/SmoothieException.h>
#include <jenga/include/smoothie/Variable.h>
#include <jenga/include/smoothie/Procedure.h>


CScope::CScope( int level, int addr, SCOPE_TYPE TypeOfStatement ){
    this->level = level;
    this->StartAddress = addr;
    this->TypeOfStatement = TypeOfStatement;

    pBreakSchedule = (DWORD *)malloc( 1 );
    nBreakSchedule = 0;
}
CScope::~CScope(){
    free( pBreakSchedule );
}

int CScope::GetStartAddress(){
    return StartAddress;
}
SCOPE_TYPE CScope::GetTypeOfStatement(){
    return TypeOfStatement;
}




CScope *CLexicalScopes::SearchScope( SCOPE_TYPE TypeOfStatement ){
    for( int i = level; i>=0; i-- ){
        if( ppScopes[i]->GetTypeOfStatement() == TypeOfStatement ){
            return ppScopes[i];
        }
    }
    return NULL;
}

CLexicalScopes::CLexicalScopes(){
    ppScopes = (CScope **)malloc( 1 );
    level=0;
}
CLexicalScopes::~CLexicalScopes(){
    free( ppScopes );
}
void CLexicalScopes::Init(int addr){
    // TODO: エラーチェック

    level = -1;
    Start( addr, SCOPE_TYPE_BASE );
}
void CLexicalScopes::Start( int addr, SCOPE_TYPE TypeOfStatement ){
    level++;
    ppScopes = (CScope **)realloc( ppScopes, ( level + 1 ) * sizeof( CScope * ) );
    ppScopes[level] = CreateScope( level, addr, TypeOfStatement );
}
void CLexicalScopes::End(){
    if( level <= 0 ){
        throw SmoothieException();
        return;
    }

    //デストラクタを呼ぶ
    CallDestructorsOfScopeEnd();

    Variables &vars = UserProc::IsGlobalAreaCompiling()?
        globalVars :
        UserProc::CompilingUserProc().localVars;

    //使用済みローカル変数の生存チェックを外す
    BOOST_FOREACH( Variable *pVar, vars ){
        if(pVar->bLiving&&pVar->ScopeLevel==level){
            pVar->bLiving=0;
            extern int obp;
            pVar->ScopeEndAddress=obp;
        }
    }


    //スコープ抜け出しスケジュール
    ppScopes[level]->RunScheduleOfBreak();


    //スコープレベルを下げる
    delete ppScopes[level];
    level--;
}

int CLexicalScopes::GetNowLevel(){
    return level;
}
void CLexicalScopes::SetNowLevel( int level ){
    this->level = level;
}
int CLexicalScopes::GetStartAddress(){
    return ppScopes[level]->GetStartAddress();
}