282 lines
8.6 KiB
C++
282 lines
8.6 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: exprgen.cxx,v $
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*
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* $Revision: 1.13 $
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*
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* last change: $Author: rt $ $Date: 2006-02-09 12:46:49 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#include "sbcomp.hxx"
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#pragma hdrstop
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#include "expr.hxx"
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// Umsetztabelle fuer Token-Operatoren und Opcodes
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typedef struct {
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SbiToken eTok; // Token
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SbiOpcode eOp; // Opcode
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} OpTable;
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static OpTable aOpTable [] = {
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{ EXPON,_EXP },
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{ MUL, _MUL },
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{ DIV, _DIV },
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{ IDIV, _IDIV },
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{ MOD, _MOD },
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{ PLUS, _PLUS },
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{ MINUS,_MINUS },
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{ EQ, _EQ },
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{ NE, _NE },
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{ LE, _LE },
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{ GE, _GE },
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{ LT, _LT },
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{ GT, _GT },
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{ AND, _AND },
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{ OR, _OR },
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{ XOR, _XOR },
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{ EQV, _EQV },
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{ IMP, _IMP },
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{ NOT, _NOT },
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{ NEG, _NEG },
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{ CAT, _CAT },
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{ LIKE, _LIKE },
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{ IS, _IS },
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{ NIL, _NOP }};
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// Ausgabe eines Elements
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void SbiExprNode::Gen( RecursiveMode eRecMode )
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{
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if( IsConstant() )
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{
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switch( GetType() )
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{
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case SbxEMPTY: pGen->Gen( _EMPTY ); break;
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case SbxINTEGER: pGen->Gen( _CONST, (short) nVal ); break;
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case SbxSTRING:
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{
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USHORT nStringId = pGen->GetParser()->aGblStrings.Add( aStrVal, TRUE );
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pGen->Gen( _SCONST, nStringId ); break;
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}
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default:
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{
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USHORT nStringId = pGen->GetParser()->aGblStrings.Add( nVal, eType );
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pGen->Gen( _NUMBER, nStringId );
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}
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}
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}
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else if( IsOperand() )
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{
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SbiExprNode* pWithParent = NULL;
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SbiOpcode eOp;
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if( aVar.pDef->GetScope() == SbPARAM )
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{
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eOp = _PARAM;
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if( 0 == aVar.pDef->GetPos() )
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{
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bool bTreatFunctionAsParam = true;
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if( eRecMode == FORCE_CALL )
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{
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bTreatFunctionAsParam = false;
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}
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else if( eRecMode == UNDEFINED )
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{
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if( aVar.pPar && aVar.pPar->IsBracket() )
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bTreatFunctionAsParam = false;
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}
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if( !bTreatFunctionAsParam )
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eOp = aVar.pDef->IsGlobal() ? _FIND_G : _FIND;
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}
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}
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// AB: 17.12.1995, Spezialbehandlung fuer WITH
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else if( (pWithParent = GetWithParent()) != NULL )
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{
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eOp = _ELEM; // .-Ausdruck in WITH
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}
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else
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{
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SbiProcDef* pProc = aVar.pDef->GetProcDef();
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// per DECLARE definiert?
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if( pProc && pProc->GetLib().Len() )
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eOp = pProc->IsCdecl() ? _CALLC : _CALL;
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else
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eOp = ( aVar.pDef->GetScope() == SbRTL ) ? _RTL :
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(aVar.pDef->IsGlobal() ? _FIND_G : _FIND);
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}
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if( eOp == _FIND && pGen->GetParser()->bClassModule )
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eOp = _FIND_CM;
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for( SbiExprNode* p = this; p; p = p->aVar.pNext )
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{
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if( p == this && pWithParent != NULL )
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pWithParent->Gen();
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p->GenElement( eOp );
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eOp = _ELEM;
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}
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}
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else if( IsTypeOf() )
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{
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pLeft->Gen();
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pGen->Gen( _TESTCLASS, nTypeStrId );
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}
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else
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{
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pLeft->Gen();
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if( pRight )
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pRight->Gen();
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for( OpTable* p = aOpTable; p->eTok != NIL; p++ )
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{
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if( p->eTok == eTok )
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{
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pGen->Gen( p->eOp ); break;
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}
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}
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}
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}
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// Ausgabe eines Operanden-Elements
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void SbiExprNode::GenElement( SbiOpcode eOp )
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{
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#ifndef PRODUCT
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if( (eOp < _RTL || eOp > _CALLC) && eOp != _FIND_G && eOp != _FIND_CM )
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pGen->GetParser()->Error( SbERR_INTERNAL_ERROR, "Opcode" );
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#endif
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SbiSymDef* pDef = aVar.pDef;
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// Das ID ist entweder die Position oder das String-ID
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// Falls das Bit 0x8000 gesetzt ist, hat die Variable
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// eine Parameterliste.
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USHORT nId = ( eOp == _PARAM ) ? pDef->GetPos() : pDef->GetId();
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// Parameterliste aufbauen
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if( aVar.pPar && aVar.pPar->GetSize() )
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{
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nId |= 0x8000;
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aVar.pPar->Gen();
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}
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SbiProcDef* pProc = aVar.pDef->GetProcDef();
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// per DECLARE definiert?
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if( pProc )
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{
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// Dann evtl. einen LIB-Befehl erzeugen
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if( pProc->GetLib().Len() )
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pGen->Gen( _LIB, pGen->GetParser()->aGblStrings.Add( pProc->GetLib() ) );
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// und den Aliasnamen nehmen
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if( pProc->GetAlias().Len() )
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nId = ( nId & 0x8000 ) | pGen->GetParser()->aGblStrings.Add( pProc->GetAlias() );
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}
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pGen->Gen( eOp, nId, GetType() );
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}
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// Erzeugen einer Argv-Tabelle
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// Das erste Element bleibt immer frei fuer Returnwerte etc.
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// Siehe auch SbiProcDef::SbiProcDef() in symtbl.cxx
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void SbiExprList::Gen()
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{
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if( pFirst )
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{
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pParser->aGen.Gen( _ARGC );
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// AB 10.1.96: Typ-Anpassung bei DECLARE
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USHORT nCount = 1, nParAnz = 0;
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SbiSymPool* pPool;
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if( pProc )
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{
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pPool = &pProc->GetParams();
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nParAnz = pPool->GetSize();
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}
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for( SbiExpression* pExpr = pFirst; pExpr; pExpr = pExpr->pNext,nCount++ )
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{
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pExpr->Gen();
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if( pExpr->GetName().Len() )
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{
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// named arg
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USHORT nSid = pParser->aGblStrings.Add( pExpr->GetName() );
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pParser->aGen.Gen( _ARGN, nSid );
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// AB 10.1.96: Typanpassung bei named -> passenden Parameter suchen
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if( pProc )
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{
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// Vorerst: Error ausloesen
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pParser->Error( SbERR_NO_NAMED_ARGS );
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// Spaeter, wenn Named Args bei DECLARE moeglich
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/*
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for( USHORT i = 1 ; i < nParAnz ; i++ )
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{
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SbiSymDef* pDef = pPool->Get( i );
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const String& rName = pDef->GetName();
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if( rName.Len() )
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{
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if( pExpr->GetName().ICompare( rName )
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== COMPARE_EQUAL )
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{
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pParser->aGen.Gen( _ARGTYP, pDef->GetType() );
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break;
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}
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}
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}
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*/
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}
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}
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else
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{
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pParser->aGen.Gen( _ARGV );
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// Funktion mit DECLARE -> Typ-Anpassung
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if( pProc && nCount < nParAnz )
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{
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SbiSymDef* pDef = pPool->Get( nCount );
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USHORT nTyp = pDef->GetType();
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// Zus<75>tzliches Flag f<>r BYVAL einbauen
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if( pDef->IsByVal() )
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nTyp |= 0x8000;
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pParser->aGen.Gen( _ARGTYP, nTyp );
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}
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}
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}
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}
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}
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void SbiExpression::Gen( RecursiveMode eRecMode )
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{
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// AB: 17.12.1995, Spezialbehandlung fuer WITH
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// Wenn pExpr == .-Ausdruck in With, zunaechst Gen fuer Basis-Objekt
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pExpr->Gen( eRecMode );
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if( bBased )
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{
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USHORT uBase = pParser->nBase;
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if( pParser->IsCompatible() )
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uBase |= 0x8000; // #109275 Flag compatiblity
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pParser->aGen.Gen( _BASED, uBase );
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pParser->aGen.Gen( _ARGV );
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}
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}
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