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+/*************************************************************************
+ *
+ * $RCSfile: exprgen.cxx,v $
+ *
+ * $Revision: 1.1.1.1 $
+ *
+ * last change: $Author: hr $ $Date: 2000-09-18 16:12:10 $
+ *
+ * The Contents of this file are made available subject to the terms of
+ * either of the following licenses
+ *
+ * - GNU Lesser General Public License Version 2.1
+ * - Sun Industry Standards Source License Version 1.1
+ *
+ * Sun Microsystems Inc., October, 2000
+ *
+ * GNU Lesser General Public License Version 2.1
+ * =============================================
+ * Copyright 2000 by Sun Microsystems, Inc.
+ * 901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ *
+ * Sun Industry Standards Source License Version 1.1
+ * =================================================
+ * The contents of this file are subject to the Sun Industry Standards
+ * Source License Version 1.1 (the "License"); You may not use this file
+ * except in compliance with the License. You may obtain a copy of the
+ * License at http://www.openoffice.org/license.html.
+ *
+ * Software provided under this License is provided on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ * See the License for the specific provisions governing your rights and
+ * obligations concerning the Software.
+ *
+ * The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ * Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ * All Rights Reserved.
+ *
+ * Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#include "sbcomp.hxx"
+#pragma hdrstop
+#include "expr.hxx"
+
+#include "segmentc.hxx"
+#pragma SW_SEGMENT_CLASS( SBCEXPR, SBCOMP_CODE )
+
+// Umsetztabelle fuer Token-Operatoren und Opcodes
+
+typedef struct {
+ SbiToken eTok; // Token
+ SbiOpcode eOp; // Opcode
+} OpTable;
+
+static OpTable aOpTable [] = {
+ { EXPON,_EXP },
+ { MUL, _MUL },
+ { DIV, _DIV },
+ { IDIV, _IDIV },
+ { MOD, _MOD },
+ { PLUS, _PLUS },
+ { MINUS,_MINUS },
+ { EQ, _EQ },
+ { NE, _NE },
+ { LE, _LE },
+ { GE, _GE },
+ { LT, _LT },
+ { GT, _GT },
+ { AND, _AND },
+ { OR, _OR },
+ { XOR, _XOR },
+ { EQV, _EQV },
+ { IMP, _IMP },
+ { NOT, _NOT },
+ { NEG, _NEG },
+ { CAT, _CAT },
+ { LIKE, _LIKE },
+ { IS, _IS },
+ { NIL, _NOP }};
+
+// Ausgabe eines Elements
+
+void SbiExprNode::Gen()
+{
+ if( IsConstant() )
+ {
+ switch( GetType() )
+ {
+ case SbxEMPTY: pGen->Gen( _EMPTY ); break;
+ case SbxINTEGER: pGen->Gen( _CONST, (short) nVal ); break;
+ case SbxSTRING: pGen->Gen( _SCONST, nStringId ); break;
+ default:
+ nStringId = pGen->GetParser()->aGblStrings.Add( nVal, eType );
+ pGen->Gen( _NUMBER, nStringId );
+ }
+ }
+ else if( IsOperand() )
+ {
+ SbiOpcode eOp;
+ if( aVar.pDef->GetScope() == SbPARAM )
+ eOp = _PARAM;
+ // AB: 17.12.1995, Spezialbehandlung fuer WITH
+ else if( IsPartOfWith() )
+ {
+ eOp = _ELEM; // .-Ausdruck in WITH
+ }
+ else
+ {
+ SbiProcDef* pProc = aVar.pDef->GetProcDef();
+ // per DECLARE definiert?
+ if( pProc && pProc->GetLib().Len() )
+ eOp = pProc->IsCdecl() ? _CALLC : _CALL;
+ else
+ eOp = ( aVar.pDef->GetScope() == SbRTL ) ? _RTL : _FIND;
+ }
+
+ for( SbiExprNode* p = this; p; p = p->aVar.pNext )
+ {
+ if( p->IsPartOfWith() )
+ pGen->GetParser()->GetWithVar()->Gen();
+ p->GenElement( eOp );
+ eOp = _ELEM;
+ }
+ }
+ else
+ {
+ pLeft->Gen();
+ if( pRight )
+ pRight->Gen();
+ for( OpTable* p = aOpTable; p->eTok != NIL; p++ )
+ {
+ if( p->eTok == eTok )
+ {
+ pGen->Gen( p->eOp ); break;
+ }
+ }
+ }
+}
+
+// Ausgabe eines Operanden-Elements
+
+void SbiExprNode::GenElement( SbiOpcode eOp )
+{
+#ifndef PRODUCT
+ if( eOp < _RTL || eOp > _CALLC )
+ pGen->GetParser()->Error( SbERR_INTERNAL_ERROR, "Opcode" );
+#endif
+ SbiSymDef* pDef = aVar.pDef;
+ // Das ID ist entweder die Position oder das String-ID
+ // Falls das Bit 0x8000 gesetzt ist, hat die Variable
+ // eine Parameterliste.
+ USHORT nId = ( eOp == _PARAM ) ? pDef->GetPos() : pDef->GetId();
+ // Parameterliste aufbauen
+ if( aVar.pPar && aVar.pPar->GetSize() )
+ {
+ nId |= 0x8000;
+ aVar.pPar->Gen();
+ }
+ SbiProcDef* pProc = aVar.pDef->GetProcDef();
+ // per DECLARE definiert?
+ if( pProc )
+ {
+ // Dann evtl. einen LIB-Befehl erzeugen
+ if( pProc->GetLib().Len() )
+ pGen->Gen( _LIB, pGen->GetParser()->aGblStrings.Add( pProc->GetLib() ) );
+ // und den Aliasnamen nehmen
+ if( pProc->GetAlias().Len() )
+ nId = ( nId & 0x8000 ) | pGen->GetParser()->aGblStrings.Add( pProc->GetAlias() );
+ }
+ pGen->Gen( eOp, nId, GetType() );
+}
+
+// Erzeugen einer Argv-Tabelle
+// Das erste Element bleibt immer frei fuer Returnwerte etc.
+// Siehe auch SbiProcDef::SbiProcDef() in symtbl.cxx
+
+void SbiExprList::Gen()
+{
+ if( pFirst )
+ {
+ pParser->aGen.Gen( _ARGC );
+ // AB 10.1.96: Typ-Anpassung bei DECLARE
+ USHORT nCount = 1, nParAnz = 0;
+ SbiSymPool* pPool;
+ if( pProc )
+ {
+ pPool = &pProc->GetParams();
+ nParAnz = pPool->GetSize();
+ }
+ for( SbiExpression* pExpr = pFirst; pExpr; pExpr = pExpr->pNext,nCount++ )
+ {
+ pExpr->Gen();
+ if( pExpr->GetName().Len() )
+ {
+ // named arg
+ USHORT nSid = pParser->aGblStrings.Add( pExpr->GetName() );
+ pParser->aGen.Gen( _ARGN, nSid );
+
+ // AB 10.1.96: Typanpassung bei named -> passenden Parameter suchen
+ if( pProc )
+ {
+ // Vorerst: Error ausloesen
+ pParser->Error( SbERR_NO_NAMED_ARGS );
+
+ // Spaeter, wenn Named Args bei DECLARE moeglich
+ /*
+ for( USHORT i = 1 ; i < nParAnz ; i++ )
+ {
+ SbiSymDef* pDef = pPool->Get( i );
+ const String& rName = pDef->GetName();
+ if( rName.Len() )
+ {
+ if( pExpr->GetName().ICompare( rName )
+ == COMPARE_EQUAL )
+ {
+ pParser->aGen.Gen( _ARGTYP, pDef->GetType() );
+ break;
+ }
+ }
+ }
+ */
+ }
+ }
+ else
+ {
+ pParser->aGen.Gen( _ARGV );
+
+ // Funktion mit DECLARE -> Typ-Anpassung
+ if( pProc && nCount < nParAnz )
+ {
+ SbiSymDef* pDef = pPool->Get( nCount );
+ USHORT nTyp = pDef->GetType();
+ // Zustzliches Flag fr BYVAL einbauen
+ if( pDef->IsByVal() )
+ nTyp |= 0x8000;
+ pParser->aGen.Gen( _ARGTYP, nTyp );
+ }
+ }
+ }
+ }
+}
+
+void SbiExpression::Gen()
+{
+ // AB: 17.12.1995, Spezialbehandlung fuer WITH
+ // Wenn pExpr == .-Ausdruck in With, zunaechst Gen fuer Basis-Objekt
+ pExpr->Gen();
+ if( bBased )
+ pParser->aGen.Gen( _BASED, pParser->nBase ),
+ pParser->aGen.Gen( _ARGV );
+}
+
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