fivedev/harbour-core
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
5a2a287752bfffefea112e55c390398568dbb8fa
harbour-core/include/hbexprb.c
Viktor Szakats 5a2a287752 2017-09-08 16:00 UTC Viktor Szakats (vszakats users.noreply.github.com) 
* *
    * partial sync with the 3.4 fork codebase. These are the things
      synces for the most part:
      - copyright headers
      - grammar/typos in comments and some readmes
      - comment/whitespace/decorations
      - variable scoping in C files
      - DO CASE/SWITCH and some other alternate syntax usage
      - minimal amount of human readable text in strings
      - minor code updates
      - HB_TRACE() void * casts for pointers and few other changes to
        avoid C compiler warnings
      - various other, minor code cleanups
      - only Harbour/C code/headers were touched in src, utils, contrib,
        include. No 3rd party code, no make files, and with just a few
        exceptions, no 'tests' code was touched.
      - certain components were not touched were 3.4 diverged too much
        already, like f.e. hbmk2, hbssl, hbcurl, hbexpat
      - the goal was that no actual program logic should be altered by
        these changes. Except some possible minor exceptions, any such
        change is probably a bug in this patch.
      It's a massive patch, if you find anything broken after it, please
      open an Issue with the details. Build test was done on macOS.
      The goal is make it easier to see what actual code/logic was changed
      in 3.4 compared to 3.2 and to make patches easier to apply in both
      ways.
2017-09-08 16:25:13 +00:00

5543 lines
181 KiB
C
Raw Blame History

/*
* Compiler Expression Optimizer
*
* Copyright 1999 Ryszard Glab
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file LICENSE.txt. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbcomp.h"
#if ! defined( HB_HASH_USES_ARRAY_INDEXES )
# define HB_HASH_USES_ARRAY_INDEXES
#endif
#define HB_USE_ARRAYAT_REF
#define HB_USE_OBJMSG_REF
/* Forward declarations
*/
/* forward declaration of callback functions
*/
static HB_EXPR_FUNC( hb_compExprUseDummy );
static HB_EXPR_FUNC( hb_compExprUseNil );
static HB_EXPR_FUNC( hb_compExprUseNumeric );
static HB_EXPR_FUNC( hb_compExprUseDate );
static HB_EXPR_FUNC( hb_compExprUseTimeStamp );
static HB_EXPR_FUNC( hb_compExprUseString );
static HB_EXPR_FUNC( hb_compExprUseCodeblock );
static HB_EXPR_FUNC( hb_compExprUseLogical );
static HB_EXPR_FUNC( hb_compExprUseSelf );
static HB_EXPR_FUNC( hb_compExprUseArray );
static HB_EXPR_FUNC( hb_compExprUseHash );
static HB_EXPR_FUNC( hb_compExprUseFunRef );
static HB_EXPR_FUNC( hb_compExprUseVarRef );
static HB_EXPR_FUNC( hb_compExprUseRef );
static HB_EXPR_FUNC( hb_compExprUseIIF );
static HB_EXPR_FUNC( hb_compExprUseList );
static HB_EXPR_FUNC( hb_compExprUseArgList );
static HB_EXPR_FUNC( hb_compExprUseMacroArgList );
static HB_EXPR_FUNC( hb_compExprUseArrayAt );
static HB_EXPR_FUNC( hb_compExprUseMacro );
static HB_EXPR_FUNC( hb_compExprUseFunCall );
static HB_EXPR_FUNC( hb_compExprUseAliasVar );
static HB_EXPR_FUNC( hb_compExprUseAliasExpr );
static HB_EXPR_FUNC( hb_compExprUseSetGet );
static HB_EXPR_FUNC( hb_compExprUseSend );
static HB_EXPR_FUNC( hb_compExprUseFunName );
static HB_EXPR_FUNC( hb_compExprUseAlias );
static HB_EXPR_FUNC( hb_compExprUseRTVariable );
static HB_EXPR_FUNC( hb_compExprUseVariable );
static HB_EXPR_FUNC( hb_compExprUseAssign );
static HB_EXPR_FUNC( hb_compExprUseEqual );
static HB_EXPR_FUNC( hb_compExprUsePlus );
static HB_EXPR_FUNC( hb_compExprUseMinus );
static HB_EXPR_FUNC( hb_compExprUseMult );
static HB_EXPR_FUNC( hb_compExprUseDiv );
static HB_EXPR_FUNC( hb_compExprUseMod );
static HB_EXPR_FUNC( hb_compExprUsePower );
static HB_EXPR_FUNC( hb_compExprUsePostInc );
static HB_EXPR_FUNC( hb_compExprUsePostDec );
static HB_EXPR_FUNC( hb_compExprUsePreInc );
static HB_EXPR_FUNC( hb_compExprUsePreDec );
static HB_EXPR_FUNC( hb_compExprUsePlusEq );
static HB_EXPR_FUNC( hb_compExprUseMinusEq );
static HB_EXPR_FUNC( hb_compExprUseMultEq );
static HB_EXPR_FUNC( hb_compExprUseDivEq );
static HB_EXPR_FUNC( hb_compExprUseModEq );
static HB_EXPR_FUNC( hb_compExprUseExpEq );
static HB_EXPR_FUNC( hb_compExprUseAnd );
static HB_EXPR_FUNC( hb_compExprUseOr );
static HB_EXPR_FUNC( hb_compExprUseNot );
static HB_EXPR_FUNC( hb_compExprUseEQ );
static HB_EXPR_FUNC( hb_compExprUseLT );
static HB_EXPR_FUNC( hb_compExprUseGT );
static HB_EXPR_FUNC( hb_compExprUseLE );
static HB_EXPR_FUNC( hb_compExprUseGE );
static HB_EXPR_FUNC( hb_compExprUseNE );
static HB_EXPR_FUNC( hb_compExprUseIN );
static HB_EXPR_FUNC( hb_compExprUseNegate );
/* other helper functions
*/
#if defined( HB_MACRO_SUPPORT )
static void hb_compExprCodeblockPush( PHB_EXPR, HB_COMP_DECL );
#else
static HB_BOOL hb_compExprCodeblockPush( PHB_EXPR, int, HB_COMP_DECL );
static void hb_compExprCodeblockEarly( PHB_EXPR, HB_COMP_DECL );
static void hb_compExprCodeblockExtPush( PHB_EXPR pSelf, HB_COMP_DECL );
#endif
static void hb_compExprPushSendPop( PHB_EXPR pSelf, HB_COMP_DECL );
static void hb_compExprPushSendPush( PHB_EXPR pSelf, HB_COMP_DECL );
static void hb_compExprPushOperEq( PHB_EXPR pSelf, HB_BYTE bOpEq, HB_COMP_DECL );
static void hb_compExprUseOperEq( PHB_EXPR pSelf, HB_BYTE bOpEq, HB_COMP_DECL );
static void hb_compExprPushPreOp( PHB_EXPR pSelf, HB_BYTE bOper, HB_COMP_DECL );
static void hb_compExprPushPostOp( PHB_EXPR pSelf, HB_BYTE bOper, HB_COMP_DECL );
static void hb_compExprUsePreOp( PHB_EXPR pSelf, HB_BYTE bOper, HB_COMP_DECL );
static void hb_compExprUseAliasMacro( PHB_EXPR pAliasedVar, HB_BYTE bAction, HB_COMP_DECL );
static PHB_EXPR hb_compExprReduceList( PHB_EXPR pExpr, HB_COMP_DECL );
static PHB_EXPR hb_compExprReduceAliasString( PHB_EXPR pExpr, PHB_EXPR pAlias, HB_COMP_DECL );
static HB_BOOL hb_compExprIsMemvarAlias( const char * szAlias );
const PHB_EXPR_FUNC hb_comp_ExprTable[ HB_EXPR_COUNT ] = {
hb_compExprUseDummy,
hb_compExprUseNil,
hb_compExprUseNumeric,
hb_compExprUseDate,
hb_compExprUseTimeStamp,
hb_compExprUseString,
hb_compExprUseCodeblock,
hb_compExprUseLogical,
hb_compExprUseSelf,
hb_compExprUseArray,
hb_compExprUseHash,
hb_compExprUseFunRef,
hb_compExprUseVarRef,
hb_compExprUseRef,
hb_compExprUseIIF,
hb_compExprUseList,
hb_compExprUseArgList,
hb_compExprUseMacroArgList,
hb_compExprUseArrayAt,
hb_compExprUseMacro,
hb_compExprUseFunCall,
hb_compExprUseAliasVar,
hb_compExprUseAliasExpr,
hb_compExprUseSetGet,
hb_compExprUseSend,
hb_compExprUseFunName,
hb_compExprUseAlias,
hb_compExprUseRTVariable,
hb_compExprUseVariable,
hb_compExprUsePostInc, /* post-operators -> lowest precedence */
hb_compExprUsePostDec,
hb_compExprUseAssign, /* assignments */
hb_compExprUsePlusEq,
hb_compExprUseMinusEq,
hb_compExprUseMultEq,
hb_compExprUseDivEq,
hb_compExprUseModEq,
hb_compExprUseExpEq,
hb_compExprUseOr, /* logical operators */
hb_compExprUseAnd,
hb_compExprUseNot,
hb_compExprUseEqual, /* relational operators */
hb_compExprUseEQ,
hb_compExprUseNE,
hb_compExprUseIN,
hb_compExprUseLT,
hb_compExprUseGT,
hb_compExprUseLE,
hb_compExprUseGE,
hb_compExprUsePlus, /* addition */
hb_compExprUseMinus,
hb_compExprUseMult, /* multiple */
hb_compExprUseDiv,
hb_compExprUseMod,
hb_compExprUsePower,
hb_compExprUseNegate, /* sign operator */
hb_compExprUsePreInc,
hb_compExprUsePreDec /* highest precedence */
};
/* ************************************************************************* */
static HB_EXPR_FUNC( hb_compExprUseDummy )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC1( PCode1, HB_P_PUSHNIL );
break;
case HB_EA_POP_PCODE:
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_NIL expression
*/
static HB_EXPR_FUNC( hb_compExprUseNil )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* NIL cannot be used as index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC1( PCode1, HB_P_PUSHNIL );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_NUMERIC expression
*/
static HB_EXPR_FUNC( hb_compExprUseNumeric )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
if( pSelf->value.asNum.NumType == HB_ET_DOUBLE )
HB_GEN_FUNC3( PushDouble, pSelf->value.asNum.val.d, pSelf->value.asNum.bWidth, pSelf->value.asNum.bDec );
else
HB_GEN_FUNC1( PushLong, pSelf->value.asNum.val.l );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_DATE expression
*/
static HB_EXPR_FUNC( hb_compExprUseDate )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
#ifdef HB_HASH_USES_ARRAY_INDEXES
if( ! HB_SUPPORT_HARBOUR )
#endif
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* Date cannot be used as index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC1( PushDate, pSelf->value.asDate.lDate );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_TIMESTAMP expression
*/
static HB_EXPR_FUNC( hb_compExprUseTimeStamp )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
#ifdef HB_HASH_USES_ARRAY_INDEXES
if( ! HB_SUPPORT_HARBOUR )
#endif
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* timestamp cannot be used as index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC2( PushTimeStamp, pSelf->value.asDate.lDate,
pSelf->value.asDate.lTime );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_STRING expression
*/
static HB_EXPR_FUNC( hb_compExprUseString )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
#ifdef HB_HASH_USES_ARRAY_INDEXES
if( ! HB_SUPPORT_HARBOUR )
#endif
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* string cannot be used as index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_MACROTEXT )
HB_GEN_FUNC2( PushString, pSelf->value.asString.string,
pSelf->nLength + 1 );
else
hb_compPushMacroText( HB_COMP_PARAM,
pSelf->value.asString.string,
pSelf->nLength, HB_FALSE );
#else
HB_GEN_FUNC2( PushString, pSelf->value.asString.string,
pSelf->nLength + 1 );
if( hb_macroIsValidMacroText( pSelf->value.asString.string,
pSelf->nLength ) )
{
HB_GEN_FUNC1( PCode1, HB_P_MACROTEXT );
}
#endif
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
break;
case HB_EA_DELETE:
if( pSelf->value.asString.dealloc )
hb_xfree( pSelf->value.asString.string );
break;
}
return pSelf;
}
/* actions for HB_ET_CODEBLOCK expression
*/
static HB_EXPR_FUNC( hb_compExprUseCodeblock )
{
switch( iMessage )
{
case HB_EA_REDUCE:
{
PHB_EXPR pExpr = pSelf->value.asCodeblock.pExprList;
if( pExpr && pExpr->pNext == NULL && pExpr->ExprType == HB_ET_FUNCALL &&
pExpr->value.asFunCall.pFunName->ExprType == HB_ET_FUNNAME &&
pExpr->value.asFunCall.pFunName->value.asSymbol.funcid == HB_F_BREAK &&
pSelf->value.asCodeblock.pLocals != NULL )
{
PHB_EXPR pParms = pExpr->value.asFunCall.pParms;
if( hb_compExprParamListLen( pParms ) == 1 &&
pParms->value.asList.pExprList->ExprType == HB_ET_VARIABLE &&
strcmp( pSelf->value.asCodeblock.pLocals->szName,
pParms->value.asList.pExprList->value.asSymbol.name ) == 0 )
{
HB_COMP_EXPR_FREE( pSelf );
pSelf = HB_COMP_EXPR_NEW( HB_ET_FUNCALL );
pSelf->value.asFunCall.pParms = NULL;
pSelf->value.asFunCall.pFunName = hb_compExprNewFunName( "__BREAKBLOCK", HB_COMP_PARAM );
break;
}
}
pSelf->value.asCodeblock.flags |= HB_BLOCK_REDUCE;
break;
}
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* codeblock cannot be used as index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
#if defined( HB_MACRO_SUPPORT )
hb_compExprCodeblockPush( pSelf, HB_COMP_PARAM );
#else
if( pSelf->value.asCodeblock.flags & HB_BLOCK_EXT )
hb_compExprCodeblockExtPush( pSelf, HB_COMP_PARAM );
else if( ( pSelf->value.asCodeblock.flags & HB_BLOCK_MACROVAR ) &&
! ( pSelf->value.asCodeblock.flags & HB_BLOCK_VPARAMS ) )
/* early evaluation of a macro */
hb_compExprCodeblockEarly( pSelf, HB_COMP_PARAM );
else
hb_compExprCodeblockPush( pSelf, 0, HB_COMP_PARAM );
#endif
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
break;
case HB_EA_DELETE:
{
PHB_EXPR pExpr = pSelf->value.asCodeblock.pExprList;
hb_compExprCBVarDel( pSelf->value.asCodeblock.pLocals );
if( pSelf->value.asCodeblock.string )
hb_xfree( pSelf->value.asCodeblock.string );
/* Delete all expressions of the block. */
while( pExpr )
{
PHB_EXPR pNext = pExpr->pNext;
HB_COMP_EXPR_FREE( pExpr );
pExpr = pNext;
}
break;
}
}
return pSelf;
}
/* actions for HB_ET_LOGICAL expression
*/
static HB_EXPR_FUNC( hb_compExprUseLogical )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* logical cannot be used as array index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC1( PushLogical, pSelf->value.asLogical );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_SELF expression
*/
static HB_EXPR_FUNC( hb_compExprUseSelf )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
/* Clipper allows such operation and because some valid Clipper
* code needs it then I disabled error message, [druzus]
*/
/* HB_COMP_ERROR_TYPE( pSelf ); */
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* SELF cannot be used as array index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC1( PCode1, HB_P_PUSHSELF );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for a literal array { , , , ... }
*/
static HB_EXPR_FUNC( hb_compExprUseArray )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf = hb_compExprReduceList( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* array cannot be used as index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
{
HB_USHORT usItems = ( HB_USHORT ) hb_compExprParamListCheck( HB_COMP_PARAM, pSelf );
if( usItems == 0 )
{
HB_GEN_FUNC3( PCode3, HB_P_ARRAYGEN, 0, 0 );
}
else
{
HB_BOOL fArgsList = pSelf->ExprType == HB_ET_MACROARGLIST;
if( ! fArgsList )
{
/* NOTE: direct type change */
pSelf->ExprType = HB_ET_ARGLIST;
}
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
if( ! fArgsList )
{
/* NOTE: restore original expression type */
pSelf->ExprType = HB_ET_ARRAY;
HB_GEN_FUNC3( PCode3, HB_P_ARRAYGEN,
HB_LOBYTE( usItems ), HB_HIBYTE( usItems ) );
}
else
{
HB_GEN_FUNC3( PCode3, HB_P_MACROARRAYGEN,
HB_LOBYTE( usItems ), HB_HIBYTE( usItems ) );
}
}
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
{
PHB_EXPR pElem = pSelf->value.asList.pExprList;
/* Push non-constant values only
*/
while( pElem )
{
HB_EXPR_USE( pElem, HB_EA_PUSH_POP );
pElem = pElem->pNext;
}
}
break;
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
break;
case HB_EA_DELETE:
{
PHB_EXPR pElem = pSelf->value.asList.pExprList;
/* Delete all elements of the array
*/
while( pElem )
{
PHB_EXPR pNext = pElem->pNext;
HB_COMP_EXPR_FREE( pElem );
pElem = pNext;
}
}
break;
}
return pSelf;
}
/* actions for HB_ET_HASH literal hash
* { key1=>val1, key2=>val2, ... keyN=>valN }
*/
static HB_EXPR_FUNC( hb_compExprUseHash )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf = hb_compExprReduceList( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf ); /* array cannot be used as index element */
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
{
HB_USHORT usItems = ( HB_USHORT ) ( pSelf->nLength >> 1 );
/* NOTE: direct type change */
pSelf->ExprType = HB_ET_ARGLIST;
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
/* NOTE: restore original expression type */
pSelf->ExprType = HB_ET_HASH;
HB_GEN_FUNC3( PCode3, HB_P_HASHGEN, HB_LOBYTE( usItems ), HB_HIBYTE( usItems ) );
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
{
PHB_EXPR pElem = pSelf->value.asList.pExprList;
/* Push non-constant values only */
while( pElem )
{
HB_EXPR_USE( pElem, HB_EA_PUSH_POP );
pElem = pElem->pNext;
}
}
break;
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
break;
case HB_EA_DELETE:
{
PHB_EXPR pElem = pSelf->value.asList.pExprList;
/* Delete all elements of the hash array
*/
while( pElem )
{
PHB_EXPR pNext = pElem->pNext;
HB_COMP_EXPR_FREE( pElem );
pElem = pNext;
}
}
break;
}
return pSelf;
}
/* actions for HB_ET_VARREF expression
*/
static HB_EXPR_FUNC( hb_compExprUseVarRef )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC1( PushVarRef, pSelf->value.asSymbol.name );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_FUNREF expression
*/
static HB_EXPR_FUNC( hb_compExprUseFunRef )
{
switch( iMessage )
{
case HB_EA_REDUCE:
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC1( PushFunRef, pSelf->value.asSymbol.name );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* actions for HB_ET_REFERENCE expression
*/
static HB_EXPR_FUNC( hb_compExprUseRef )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asReference = HB_EXPR_USE( pSelf->value.asReference, HB_EA_REDUCE );
if( pSelf->value.asReference->ExprType == HB_ET_IIF )
{
PHB_EXPR pCond, pIIF, pFalse;
pIIF = pSelf->value.asReference;
pCond = pIIF->value.asList.pExprList;
pFalse = hb_compExprNewRef( pCond->pNext->pNext, HB_COMP_PARAM );
pCond->pNext = hb_compExprNewRef( pCond->pNext, HB_COMP_PARAM );
pCond->pNext->pNext = pFalse;
HB_COMP_EXPR_CLEAR( pSelf );
pSelf = pIIF;
}
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
{
PHB_EXPR pExp = pSelf->value.asReference;
if( pExp->ExprType == HB_ET_MACRO )
{
if( pExp->value.asMacro.SubType & HB_ET_MACRO_VAR )
{
pExp->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pExp, HB_EA_PUSH_PCODE );
break;
}
}
else if( pExp->ExprType == HB_ET_ARRAYAT )
{
pExp->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pExp, HB_EA_PUSH_PCODE );
break;
}
else if( pExp->ExprType == HB_ET_SEND )
{
/* PHB_EXPR pSend = pExp->value.asMessage.pObject;
if( ! pSend || pSend->ExprType == HB_ET_VARIABLE ) */
{
hb_compExprPushSendPop( pExp, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
break;
}
}
else if( pExp->ExprType == HB_ET_VARIABLE )
{
/* NOTE: direct type change */
pExp->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pExp, HB_EA_PUSH_PCODE );
/* NOTE: restore original expression type */
pExp->ExprType = HB_ET_VARIABLE;
break;
}
else if( pExp->ExprType == HB_ET_ALIASVAR )
{
if( pExp->value.asAlias.pVar->ExprType == HB_ET_VARIABLE &&
pExp->value.asAlias.pAlias->ExprType == HB_ET_ALIAS &&
hb_compExprIsMemvarAlias( pExp->value.asAlias.pAlias->value.asSymbol.name ) )
{
/* @M-> @MEMVAR-> or @MEMVA-> or @MEMV-> */
HB_GEN_FUNC1( PushMemvarRef, pExp->value.asAlias.pVar->value.asSymbol.name );
break;
}
}
else if( pExp->ExprType == HB_ET_VARREF ||
pExp->ExprType == HB_ET_REFERENCE )
{
HB_EXPR_USE( pExp, HB_EA_PUSH_PCODE );
break;
}
hb_compErrorRefer( HB_COMP_PARAM, NULL, hb_compExprDescription( pExp ) );
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
case HB_EA_DELETE:
HB_COMP_EXPR_FREE( pSelf->value.asReference );
break;
}
return pSelf;
}
/* actions for HB_ET_IIF expression
*/
static HB_EXPR_FUNC( hb_compExprUseIIF )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf = hb_compExprReduceIIF( hb_compExprReduceList( pSelf, HB_COMP_PARAM ), HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
if( HB_SUPPORT_HARBOUR )
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList->pNext;
HB_EXPR_USE( pExpr, HB_EA_LVALUE );
HB_EXPR_USE( pExpr->pNext, HB_EA_LVALUE );
}
else
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
{
/* this is called if all three parts of IIF expression should be generated
*/
HB_ISIZ nPosFalse, nPosEnd;
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
nPosFalse = HB_GEN_FUNC1( JumpFalse, 0 );
pExpr = pExpr->pNext;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
nPosEnd = HB_GEN_FUNC1( Jump, 0 );
pExpr = pExpr->pNext;
HB_GEN_FUNC1( JumpHere, nPosFalse );
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( JumpHere, nPosEnd );
break;
}
case HB_EA_POP_PCODE:
{
/* this is called if all three parts of IIF expression should be generated
*/
HB_ISIZ nPosFalse, nPosEnd;
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
nPosFalse = HB_GEN_FUNC1( JumpFalse, 0 );
pExpr = pExpr->pNext;
HB_EXPR_USE( pExpr, HB_EA_POP_PCODE );
nPosEnd = HB_GEN_FUNC1( Jump, 0 );
pExpr = pExpr->pNext;
HB_GEN_FUNC1( JumpHere, nPosFalse );
HB_EXPR_USE( pExpr, HB_EA_POP_PCODE );
HB_GEN_FUNC1( JumpHere, nPosEnd );
break;
}
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
{
#ifdef HB_CLP_STRICT
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP ); /* remove a value if used in statement */
#else
HB_SIZE nPosFalse, nPosEnd;
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
nPosFalse = HB_GEN_FUNC1( JumpFalse, 0 );
pExpr = pExpr->pNext;
/* do not generate warning about meaningless use of expression NIL */
if( pExpr->ExprType != HB_ET_NIL )
HB_EXPR_USE( pExpr, HB_EA_PUSH_POP );
pExpr = pExpr->pNext;
#if defined( HB_MACRO_SUPPORT )
if( HB_PCODE_DATA->nPCodePos == nPosFalse + 3 )
{
HB_PCODE_DATA->pCode[ nPosFalse - 1 ] = HB_P_JUMPTRUEFAR;
nPosEnd = nPosFalse;
}
#else
if( HB_COMP_PARAM->functions.pLast->nPCodePos == nPosFalse + 3 )
{
HB_COMP_PARAM->functions.pLast->pCode[ nPosFalse - 1 ] = HB_P_JUMPTRUEFAR;
nPosEnd = nPosFalse;
}
#endif
else
{
nPosEnd = HB_GEN_FUNC1( Jump, 0 );
HB_GEN_FUNC1( JumpHere, nPosFalse );
}
/* do not generate warning about meaningless use of expression NIL */
if( pExpr->ExprType != HB_ET_NIL )
HB_EXPR_USE( pExpr, HB_EA_PUSH_POP );
HB_GEN_FUNC1( JumpHere, nPosEnd );
#endif
break;
}
case HB_EA_DELETE:
if( pSelf->value.asList.pExprList )
{
PHB_EXPR pNext, pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
pNext = pExpr->pNext; /* store next expression */
HB_COMP_EXPR_FREE( pExpr );
pExpr = pNext;
}
pSelf->value.asList.pExprList = NULL;
}
break;
}
return pSelf; /* return self */
}
/* NOTE: In PUSH operation it leaves on the eval stack the last expression only
*/
static HB_EXPR_FUNC( hb_compExprUseList )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf = hb_compExprReduceList( pSelf, HB_COMP_PARAM );
if( HB_SUPPORT_XBASE && pSelf->ExprType == HB_ET_LIST &&
hb_compExprListLen( pSelf ) == 1 )
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
if( pExpr->ExprType == HB_ET_MACRO &&
( pExpr->value.asMacro.SubType & HB_ET_MACRO_NOPARE ) == 0 )
pExpr->value.asMacro.SubType |= HB_ET_MACRO_PARE;
}
if( HB_SUPPORT_HARBOUR )
pSelf = hb_compExprListStrip( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
if( hb_compExprListLen( pSelf ) == 1 )
{
/* For example:
* ( a ) := 4
*/
hb_compErrorLValue( HB_COMP_PARAM, pSelf->value.asList.pExprList );
}
else
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
if( pExpr->ExprType == HB_ET_NONE && pExpr->pNext == NULL )
{
/* Empty list was used ()
*/
HB_COMP_ERROR_SYNTAX( pExpr );
}
else
{
while( pExpr )
{
if( HB_SUPPORT_XBASE )
{
if( pExpr->ExprType == HB_ET_MACRO &&
( pExpr->value.asMacro.SubType & HB_ET_MACRO_NOPARE ) == 0 )
pExpr->value.asMacro.SubType |= HB_ET_MACRO_PARE;
}
if( pExpr->pNext )
HB_EXPR_USE( pExpr, HB_EA_PUSH_POP );
else
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE ); /* the last expression */
pExpr = pExpr->pNext;
}
}
}
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
if( HB_SUPPORT_XBASE )
{
if( pExpr->ExprType == HB_ET_MACRO &&
( pExpr->value.asMacro.SubType & HB_ET_MACRO_NOPARE ) == 0 )
pExpr->value.asMacro.SubType |= HB_ET_MACRO_PARE;
}
HB_EXPR_USE( pExpr, HB_EA_PUSH_POP );
pExpr = pExpr->pNext;
}
}
break;
case HB_EA_DELETE:
while( pSelf->value.asList.pExprList )
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
pSelf->value.asList.pExprList = pExpr->pNext;
HB_COMP_EXPR_FREE( pExpr );
}
break;
}
return pSelf;
}
/* NOTE: In PUSH operation it leaves all expressions on the eval stack
*/
static HB_EXPR_FUNC( hb_compExprUseArgList )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf = hb_compExprReduceList( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
if( pSelf->value.asList.reference )
{
#if defined( HB_MACRO_SUPPORT )
if( ! HB_PCODE_DATA->fVParams )
#else
if( ! HB_COMP_PARAM->functions.pLast->fVParams )
#endif
{
hb_compErrorVParams( HB_COMP_PARAM,
HB_COMP_PARAM->functions.pLast->szName ?
"Function" : "Codeblock" );
}
HB_GEN_FUNC1( PCode1, HB_P_PUSHVPARAMS );
}
else
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
pExpr = pExpr->pNext;
}
}
break;
case HB_EA_POP_PCODE:
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
break;
case HB_EA_DELETE:
if( pSelf->value.asList.pExprList )
{
PHB_EXPR pNext, pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
pNext = pExpr->pNext; /* store next expression */
HB_COMP_EXPR_FREE( pExpr );
pExpr = pNext;
}
pSelf->value.asList.pExprList = NULL;
}
break;
}
return pSelf;
}
/* NOTE: In PUSH operation it leaves all expressions on the eval stack,
* the expressions are divided into macro compiled blocks
*/
static HB_EXPR_FUNC( hb_compExprUseMacroArgList )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf = hb_compExprReduceList( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList;
HB_USHORT usItems = 0;
while( pExpr )
{
if( ( pExpr->ExprType == HB_ET_MACRO &&
( pExpr->value.asMacro.SubType & HB_ET_MACRO_LIST ) ) ||
( pExpr->ExprType == HB_ET_ARGLIST &&
pExpr->value.asList.reference ) ||
( pExpr->ExprType == HB_ET_FUNCALL &&
pExpr->value.asFunCall.pFunName->ExprType == HB_ET_FUNNAME &&
pExpr->value.asFunCall.pFunName->value.asSymbol.funcid ==
HB_F_ARRAYTOPARAMS ) )
{
if( usItems )
{
HB_GEN_FUNC1( PushLong, usItems );
usItems = 0;
}
}
else
++usItems;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
pExpr = pExpr->pNext;
}
if( usItems )
{
HB_GEN_FUNC1( PushLong, usItems );
}
}
break;
case HB_EA_POP_PCODE:
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
break;
case HB_EA_DELETE:
if( pSelf->value.asList.pExprList )
{
PHB_EXPR pNext, pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
pNext = pExpr->pNext; /* store next expression */
HB_COMP_EXPR_FREE( pExpr );
pExpr = pNext;
}
pSelf->value.asList.pExprList = NULL;
}
break;
}
return pSelf;
}
/* handler for ( ( array[ idx ] )[ idx ] )[ idx ]
*/
static HB_EXPR_FUNC( hb_compExprUseArrayAt )
{
switch( iMessage )
{
case HB_EA_REDUCE:
{
PHB_EXPR pIdx;
/* Clipper forces memvar context for undeclared variables used with
* array index, f.e.: var[ n ]
* but not for code like: ( var )[ n ]
*/
if( pSelf->value.asList.pExprList->ExprType == HB_ET_VARIABLE )
{
#if ! defined( HB_MACRO_SUPPORT )
int iScope;
hb_compVariableFind( HB_COMP_PARAM, pSelf->value.asList.pExprList->value.asSymbol.name, NULL, &iScope );
if( iScope == HB_VS_UNDECLARED )
{
hb_compGenWarning( HB_COMP_PARAM, hb_comp_szWarnings, 'W', HB_COMP_WARN_MEMVAR_ASSUMED,
pSelf->value.asList.pExprList->value.asSymbol.name, NULL );
#else
if( hb_macroLocalVarGetPos( pSelf->value.asList.pExprList->value.asSymbol.name, HB_COMP_PARAM ) == 0 )
{
#endif
pSelf->value.asList.pExprList = hb_compExprNewAliasVar(
hb_compExprNewAlias( "MEMVAR", HB_COMP_PARAM ),
pSelf->value.asList.pExprList, HB_COMP_PARAM );
}
}
pSelf->value.asList.pExprList = HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_REDUCE );
pSelf->value.asList.pIndex = HB_EXPR_USE( pSelf->value.asList.pIndex, HB_EA_REDUCE );
pIdx = pSelf->value.asList.pIndex;
if( pIdx->ExprType == HB_ET_NUMERIC )
{
PHB_EXPR pExpr = pSelf->value.asList.pExprList; /* the expression that holds an array */
HB_ISIZ nIndex;
if( pIdx->value.asNum.NumType == HB_ET_LONG )
nIndex = ( HB_ISIZ ) pIdx->value.asNum.val.l;
else
nIndex = ( HB_ISIZ ) pIdx->value.asNum.val.d;
if( pExpr->ExprType == HB_ET_ARRAY ) /* is it a literal array */
{
HB_SIZE nSize = hb_compExprParamListCheck( HB_COMP_PARAM, pExpr );
if( pExpr->ExprType == HB_ET_MACROARGLIST )
/* restore original expression type */
pExpr->ExprType = HB_ET_ARRAY;
else if( ! HB_IS_VALID_INDEX( nIndex, nSize ) )
{
if( ! HB_SUPPORT_ARRSTR )
hb_compErrorBound( HB_COMP_PARAM, pIdx );
}
else
{
pExpr = pExpr->value.asList.pExprList; /* the first element in the array */
while( --nIndex && pExpr )
pExpr = pExpr->pNext;
if( pExpr ) /* found ? */
{
/* extract a single expression from the array
*/
PHB_EXPR pNew = HB_COMP_EXPR_NEW( HB_ET_NONE );
memcpy( pNew, pExpr, sizeof( HB_EXPR ) );
/* This will suppress releasing of memory occupied by components of
* the expression - we have just copied them into the new expression.
* This method is simpler then traversing the list and releasing all
* but this chosen one.
*/
pExpr->ExprType = HB_ET_NONE;
/* Here comes the magic */
HB_COMP_EXPR_FREE( pSelf );
pSelf = pNew;
}
else if( ! HB_SUPPORT_ARRSTR )
hb_compErrorBound( HB_COMP_PARAM, pIdx );
}
}
#if 0
else if( pExpr->ExprType == HB_ET_STRING && HB_SUPPORT_ARRSTR ) /* is it a literal string */
{
if( HB_IS_VALID_INDEX( nIndex, pExpr->nLength ) )
{
HB_UCHAR ucValue = ( HB_UCHAR ) pExpr->value.asString.string[ nIndex - 1 ];
HB_COMP_EXPR_FREE( pSelf );
pSelf = hb_compExprNewLong( ucValue, HB_COMP_PARAM );
}
else
hb_compErrorBound( HB_COMP_PARAM, pIdx );
}
#endif
else if( ! HB_SUPPORT_ARRSTR )
{
HB_EXPR_USE( pExpr, HB_EA_ARRAY_AT );
}
}
break;
}
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
{
HB_BOOL fMacroIndex = HB_FALSE;
if( pSelf->value.asList.pIndex->ExprType == HB_ET_MACRO )
{
if( HB_SUPPORT_XBASE )
{
if( ( pSelf->value.asList.pIndex->value.asMacro.SubType & HB_ET_MACRO_NOLIST ) == 0 )
{
pSelf->value.asList.pIndex->value.asMacro.SubType |= HB_ET_MACRO_LIST;
fMacroIndex = HB_TRUE;
}
}
}
else if( pSelf->value.asList.pIndex->ExprType == HB_ET_ARGLIST )
{
fMacroIndex = pSelf->value.asList.pIndex->value.asList.reference;
}
else if( pSelf->value.asList.pIndex->ExprType == HB_ET_FUNCALL &&
pSelf->value.asList.pIndex->value.asFunCall.pFunName->
value.asSymbol.funcid == HB_F_ARRAYTOPARAMS )
{
pSelf->value.asList.pIndex->value.asFunCall.pFunName->
value.asSymbol.flags |= HB_FN_MULTIARG;
fMacroIndex = HB_TRUE;
}
if( pSelf->value.asList.reference && HB_SUPPORT_ARRSTR )
{
PHB_EXPR pList = pSelf->value.asList.pExprList;
if( pList->ExprType == HB_ET_VARIABLE )
{
/* NOTE: direct type change */
pList->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
/* NOTE: restore original expression type */
pList->ExprType = HB_ET_VARIABLE;
}
else if( pList->ExprType == HB_ET_ALIASVAR &&
pList->value.asAlias.pVar->ExprType == HB_ET_VARIABLE &&
pList->value.asAlias.pAlias->ExprType == HB_ET_ALIAS &&
hb_compExprIsMemvarAlias( pList->value.asAlias.pAlias->value.asSymbol.name ) )
{
HB_GEN_FUNC1( PushMemvarRef, pList->value.asAlias.pVar->value.asSymbol.name );
}
else if( pList->ExprType == HB_ET_SEND )
{
hb_compExprPushSendPop( pList, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
}
else if( pList->ExprType == HB_ET_ARRAYAT &&
! pList->value.asList.reference )
{
pList->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
pList->value.asList.reference = HB_FALSE;
}
else if( pList->ExprType == HB_ET_MACRO &&
pList->value.asMacro.SubType & HB_ET_MACRO_VAR )
{
pList->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
pList->value.asMacro.SubType &= ~HB_ET_MACRO_REFER;
}
else
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
}
else
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asList.pIndex, HB_EA_PUSH_PCODE );
if( fMacroIndex )
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSHINDEX );
if( pSelf->value.asList.reference )
HB_GEN_FUNC1( PCode1, HB_P_ARRAYPUSHREF );
else
HB_GEN_FUNC1( PCode1, HB_P_ARRAYPUSH );
break;
}
case HB_EA_POP_PCODE:
{
HB_BOOL fMacroIndex = HB_FALSE;
if( pSelf->value.asList.pIndex->ExprType == HB_ET_MACRO )
{
if( HB_SUPPORT_XBASE )
{
if( ( pSelf->value.asList.pIndex->value.asMacro.SubType & HB_ET_MACRO_NOLIST ) == 0 )
{
pSelf->value.asList.pIndex->value.asMacro.SubType |= HB_ET_MACRO_LIST;
fMacroIndex = HB_TRUE;
}
}
}
else if( pSelf->value.asList.pIndex->ExprType == HB_ET_ARGLIST )
{
fMacroIndex = pSelf->value.asList.pIndex->value.asList.reference;
}
else if( pSelf->value.asList.pIndex->ExprType == HB_ET_FUNCALL &&
pSelf->value.asList.pIndex->value.asFunCall.pFunName->
value.asSymbol.funcid == HB_F_ARRAYTOPARAMS )
{
pSelf->value.asList.pIndex->value.asFunCall.pFunName->
value.asSymbol.flags |= HB_FN_MULTIARG;
fMacroIndex = HB_TRUE;
}
/* to manage strings as bytes arrays, they must be pushed by reference */
/* arrays also are passed by reference */
if( HB_SUPPORT_ARRSTR )
{
PHB_EXPR pList = pSelf->value.asList.pExprList;
if( pList->ExprType == HB_ET_VARIABLE )
{
/* NOTE: direct type change */
pList->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
/* NOTE: restore original expression type */
pList->ExprType = HB_ET_VARIABLE;
}
else if( pList->ExprType == HB_ET_ALIASVAR &&
pList->value.asAlias.pVar->ExprType == HB_ET_VARIABLE &&
pList->value.asAlias.pAlias->ExprType == HB_ET_ALIAS &&
hb_compExprIsMemvarAlias( pList->value.asAlias.pAlias->value.asSymbol.name ) )
{
HB_GEN_FUNC1( PushMemvarRef, pList->value.asAlias.pVar->value.asSymbol.name );
}
else if( pList->ExprType == HB_ET_SEND )
{
hb_compExprPushSendPop( pList, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
}
else if( pList->ExprType == HB_ET_ARRAYAT &&
! pList->value.asList.reference )
{
pList->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
pList->value.asList.reference = HB_FALSE;
}
else if( pList->ExprType == HB_ET_MACRO &&
pList->value.asMacro.SubType & HB_ET_MACRO_VAR )
{
pList->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
pList->value.asMacro.SubType &= ~HB_ET_MACRO_REFER;
}
else
HB_EXPR_USE( pList, HB_EA_PUSH_PCODE );
}
else
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asList.pIndex, HB_EA_PUSH_PCODE );
if( fMacroIndex )
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSHINDEX );
HB_GEN_FUNC1( PCode1, HB_P_ARRAYPOP );
break;
}
case HB_EA_PUSH_POP:
/* NOTE: This is highly optimized code - this will work even
* if accessed value isn't an array. It will work also if
* the index is invalid
*/
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asList.pIndex, HB_EA_PUSH_POP );
/* fallthrough */
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
break;
case HB_EA_DELETE:
HB_COMP_EXPR_FREE( pSelf->value.asList.pExprList );
HB_COMP_EXPR_FREE( pSelf->value.asList.pIndex );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseMacro )
{
switch( iMessage )
{
case HB_EA_REDUCE:
if( pSelf->value.asMacro.pExprList )
pSelf->value.asMacro.pExprList = HB_EXPR_USE( pSelf->value.asMacro.pExprList, HB_EA_REDUCE );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
if( pSelf->value.asMacro.SubType & HB_ET_MACRO_ASSIGN )
HB_GEN_FUNC2( PushString, "_", 2 );
if( pSelf->value.asMacro.pExprList )
{
/* macro expression: &( expressions_list )
* NOTE: only the last expression will be macro-compiled
*/
HB_EXPR_USE( pSelf->value.asMacro.pExprList, HB_EA_PUSH_PCODE );
}
else
{
if( pSelf->value.asMacro.cMacroOp )
{
/* simple macro variable expansion: &variable
* 'szMacro' is a variable name
*/
#if ! defined( HB_MACRO_SUPPORT )
hb_compPushMacroVar( HB_COMP_PARAM, pSelf->value.asMacro.szMacro );
#else
HB_GEN_FUNC1( PushVar, pSelf->value.asMacro.szMacro );
#endif
}
else
{
/* complex macro expression: prefix&var.suffix
* all components should be placed as a string that will
* be compiled after text substitution
*/
/* Check if macrotext variable does not refer to
* local, static or field.
*/
#if ! defined( HB_MACRO_SUPPORT )
hb_compPushMacroText( HB_COMP_PARAM,
pSelf->value.asMacro.szMacro,
strlen( pSelf->value.asMacro.szMacro ), HB_TRUE );
#else
HB_GEN_FUNC2( PushString, pSelf->value.asMacro.szMacro, strlen( pSelf->value.asMacro.szMacro ) + 1 );
#endif
}
}
if( pSelf->value.asMacro.SubType & HB_ET_MACRO_ASSIGN )
{
HB_GEN_FUNC1( PCode1, HB_P_PLUS );
pSelf->value.asMacro.SubType &= ~HB_ET_MACRO_ASSIGN;
}
/* compile & run - leave a result on the eval stack
*/
if( pSelf->value.asMacro.SubType & HB_ET_MACRO_SYMBOL )
HB_GEN_FUNC1( PCode1, HB_P_MACROSYMBOL );
else if( pSelf->value.asMacro.SubType & HB_ET_MACRO_REFER )
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSHREF );
else if( pSelf->value.asMacro.SubType & HB_ET_MACRO_ALIASED )
{
/* NOTE: pcode for alias context is generated in
* hb_compExprUseAliasVar()
*/
}
else
{
if( HB_SUPPORT_XBASE )
{
if( pSelf->value.asMacro.SubType & HB_ET_MACRO_LIST )
{
/* { &macro }, funCall( &macro ) or var[ &macro ] */
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSHLIST );
}
else if( pSelf->value.asMacro.SubType & HB_ET_MACRO_PARE )
{
/* var := (somevalue, &macro) - in Xbase++ compatibility mode
* Eval( {|| &macro} ) - in all cases
*/
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSHPARE );
}
else
{
/* usual &macro */
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSH );
}
}
else
/* usual &macro */
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSH );
/* Always add byte to pcode indicating requested macro compiler flag. */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) HB_MACRO_GENFLAGS );
}
break;
case HB_EA_POP_PCODE:
if( pSelf->value.asMacro.pExprList )
{
/* macro expression: &( expressions_list )
* NOTE: only the last expression will be macro-compiled
*/
HB_EXPR_USE( pSelf->value.asMacro.pExprList, HB_EA_PUSH_PCODE );
}
else
{
if( pSelf->value.asMacro.cMacroOp )
{
/* simple macro variable expansion: &variable
* 'szMacro' is a variable name
*/
#if ! defined( HB_MACRO_SUPPORT )
hb_compPushMacroVar( HB_COMP_PARAM, pSelf->value.asMacro.szMacro );
#else
HB_GEN_FUNC1( PushVar, pSelf->value.asMacro.szMacro );
#endif
}
else
{
/* complex macro expression: prefix&var.suffix
* all components should be placed as a string that will
* be compiled after text substitution
*/
/* Check if macrotext variable does not refer to
* local, static or field.
*/
#if ! defined( HB_MACRO_SUPPORT )
hb_compPushMacroText( HB_COMP_PARAM,
pSelf->value.asMacro.szMacro,
strlen( pSelf->value.asMacro.szMacro ), HB_TRUE );
#else
HB_GEN_FUNC2( PushString, pSelf->value.asMacro.szMacro, strlen( pSelf->value.asMacro.szMacro ) + 1 );
#endif
}
}
/* compile & run - macro compiler will generate pcode to pop a value
* from the eval stack
*/
if( ( pSelf->value.asMacro.SubType & HB_ET_MACRO_ALIASED ) == 0 )
{
HB_GEN_FUNC1( PCode1, HB_P_MACROPOP );
/* Always add byte to pcode indicating requested macro compiler flag. */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) HB_MACRO_GENFLAGS );
}
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
break;
case HB_EA_DELETE:
if( pSelf->value.asMacro.pExprList )
HB_COMP_EXPR_FREE( pSelf->value.asMacro.pExprList );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseFunCall )
{
switch( iMessage )
{
case HB_EA_REDUCE:
/* Reduce the expressions on the list of arguments
*/
if( pSelf->value.asFunCall.pParms )
pSelf->value.asFunCall.pParms = HB_EXPR_USE( pSelf->value.asFunCall.pParms, HB_EA_REDUCE );
if( pSelf->value.asFunCall.pFunName->ExprType == HB_ET_FUNNAME )
{
HB_FUNC_ID funcID = pSelf->value.asFunCall.pFunName->value.asSymbol.funcid;
PHB_EXPR pParms = pSelf->value.asFunCall.pParms;
HB_USHORT usCount = ( HB_USHORT ) hb_compExprParamListLen( pParms );
#ifndef HB_MACRO_SUPPORT
if( hb_compFunCallCheck( HB_COMP_PARAM, pSelf->value.asFunCall.pFunName->value.asSymbol.name, usCount ) )
#endif
{
switch( funcID )
{
case HB_F_AT:
if( usCount == 2 )
hb_compExprReduceAT( pSelf, HB_COMP_PARAM );
break;
case HB_F_ASC:
if( usCount )
hb_compExprReduceASC( pSelf, HB_COMP_PARAM );
break;
case HB_F_CHR:
if( usCount )
hb_compExprReduceCHR( pSelf, HB_COMP_PARAM );
break;
case HB_F_LEN:
if( usCount )
hb_compExprReduceLEN( pSelf, HB_COMP_PARAM );
break;
case HB_F_UPPER:
if( usCount )
hb_compExprReduceUPPER( pSelf, HB_COMP_PARAM );
break;
case HB_F_EMPTY:
if( usCount && HB_SUPPORT_HARBOUR )
hb_compExprReduceEMPTY( pSelf, HB_COMP_PARAM );
break;
case HB_F_INT:
if( usCount == 1 && HB_SUPPORT_HARBOUR )
hb_compExprReduceINT( pSelf, HB_COMP_PARAM );
break;
case HB_F_MAX:
if( usCount == 2 && HB_SUPPORT_HARBOUR )
hb_compExprReduceMAX( pSelf, HB_COMP_PARAM );
break;
case HB_F_MIN:
if( usCount == 2 && HB_SUPPORT_HARBOUR )
hb_compExprReduceMIN( pSelf, HB_COMP_PARAM );
break;
case HB_F_STOD:
if( usCount < 2 && HB_SUPPORT_HARBOUR )
hb_compExprReduceSTOD( pSelf, usCount, HB_COMP_PARAM );
break;
case HB_F_STOT:
hb_compExprReduceSTOT( pSelf, usCount, HB_COMP_PARAM );
break;
case HB_F_DTOS:
if( usCount == 1 )
hb_compExprReduceDTOS( pSelf, HB_COMP_PARAM );
break;
case HB_F_CTOD:
if( usCount && HB_SUPPORT_HARBOUR )
hb_compExprReduceCTOD( pSelf, HB_COMP_PARAM );
break;
case HB_F_BCHAR:
if( usCount )
hb_compExprReduceBCHAR( pSelf, HB_COMP_PARAM );
break;
case HB_F_BCODE:
if( usCount )
hb_compExprReduceBCODE( pSelf, HB_COMP_PARAM );
break;
case HB_F_BITAND:
case HB_F_BITOR:
case HB_F_BITXOR:
case HB_F_BITSET:
case HB_F_BITRESET:
case HB_F_BITSHIFT:
if( usCount >= 2 &&
pParms->value.asList.pExprList->ExprType == HB_ET_NUMERIC &&
pParms->value.asList.pExprList->pNext->ExprType == HB_ET_NUMERIC )
{
PHB_EXPR pArg = pParms->value.asList.pExprList;
HB_MAXINT lResult = hb_compExprAsLongNum( pArg );
HB_BOOL fOptimize = HB_TRUE;
if( funcID == HB_F_BITAND )
{
while( --usCount )
{
pArg = pArg->pNext;
if( pArg->ExprType != HB_ET_NUMERIC )
{
fOptimize = HB_FALSE;
break;
}
lResult &= hb_compExprAsLongNum( pArg );
}
}
else if( funcID == HB_F_BITOR )
{
while( --usCount )
{
pArg = pArg->pNext;
if( pArg->ExprType != HB_ET_NUMERIC )
{
fOptimize = HB_FALSE;
break;
}
lResult |= hb_compExprAsLongNum( pArg );
}
}
else if( funcID == HB_F_BITXOR )
{
while( --usCount )
{
pArg = pArg->pNext;
if( pArg->ExprType != HB_ET_NUMERIC )
{
fOptimize = HB_FALSE;
break;
}
lResult ^= hb_compExprAsLongNum( pArg );
}
}
else if( funcID == HB_F_BITSET )
{
HB_MAXINT lBit = hb_compExprAsLongNum( pArg->pNext );
lResult |= ( HB_MAXINT ) 1 << lBit;
}
else if( funcID == HB_F_BITRESET )
{
HB_MAXINT lBit = hb_compExprAsLongNum( pArg->pNext );
lResult &= ~( ( HB_MAXINT ) 1 << lBit );
}
else /* if( funcID == HB_F_BITSHIFT ) */
{
HB_MAXINT lBits = hb_compExprAsLongNum( pArg->pNext );
if( lBits < 0 )
lResult >>= -lBits;
else
lResult <<= lBits;
}
if( fOptimize )
hb_compExprReduceBitFunc( pSelf, lResult, HB_FALSE, HB_COMP_PARAM );
}
break;
case HB_F_BITTEST:
if( usCount >= 2 &&
pParms->value.asList.pExprList->ExprType == HB_ET_NUMERIC &&
pParms->value.asList.pExprList->pNext->ExprType == HB_ET_NUMERIC )
{
PHB_EXPR pArg = pParms->value.asList.pExprList;
HB_MAXINT lBit = hb_compExprAsLongNum( pArg->pNext );
HB_MAXINT lResult = ( hb_compExprAsLongNum( pArg ) &
( ( HB_MAXINT ) 1 << lBit ) ) != 0;
hb_compExprReduceBitFunc( pSelf, lResult, HB_TRUE, HB_COMP_PARAM );
}
break;
case HB_F_BITNOT:
if( usCount && pParms->value.asList.pExprList->ExprType == HB_ET_NUMERIC )
{
HB_MAXINT lResult = ~hb_compExprAsLongNum( pParms->value.asList.pExprList );
hb_compExprReduceBitFunc( pSelf, lResult, HB_FALSE, HB_COMP_PARAM );
}
break;
#ifndef HB_MACRO_SUPPORT
case HB_F_I18N_GETTEXT:
case HB_F_I18N_GETTEXT_NOOP:
case HB_F_I18N_GETTEXT_STRICT:
case HB_F_I18N_NGETTEXT:
case HB_F_I18N_NGETTEXT_NOOP:
case HB_F_I18N_NGETTEXT_STRICT:
{
PHB_EXPR pCount = NULL, pBadParam = NULL, pArg;
int iWarning = 0;
const char * szExpect = NULL;
const char * szContext = NULL;
HB_BOOL fStrict, fNoop, fPlural;
pArg = usCount ? pParms->value.asList.pExprList : NULL;
fStrict = funcID == HB_F_I18N_GETTEXT_STRICT ||
funcID == HB_F_I18N_NGETTEXT_STRICT;
fNoop = funcID == HB_F_I18N_GETTEXT_NOOP ||
funcID == HB_F_I18N_NGETTEXT_NOOP;
fPlural = funcID == HB_F_I18N_NGETTEXT ||
funcID == HB_F_I18N_NGETTEXT_NOOP ||
funcID == HB_F_I18N_NGETTEXT_STRICT;
if( fPlural && usCount )
{
pCount = pArg;
pArg = pArg->pNext;
--usCount;
if( pCount->ExprType <= HB_ET_FUNREF &&
pCount->ExprType != HB_ET_NUMERIC )
{
iWarning = HB_COMP_WARN_PARAM_TYPE;
pBadParam = pCount;
szExpect = "Numeric expression";
}
}
if( usCount == 2 )
{
if( pArg->pNext->ExprType == HB_ET_STRING && pArg->pNext->nLength > 0 )
{
szContext = pArg->pNext->value.asString.string;
--usCount;
}
else
{
iWarning = HB_COMP_WARN_PARAM_TYPE;
pBadParam = pArg->pNext;
szExpect = "String";
}
}
if( iWarning == 0 )
{
const char * szPlurals[ HB_I18N_PLURAL_MAX ];
if( usCount == 1 )
{
if( pArg->ExprType == HB_ET_STRING )
{
if( HB_COMP_PARAM->fI18n && pArg->nLength > 0 )
{
if( pCount )
{
szPlurals[ 0 ] = pArg->value.asString.string;
hb_compI18nAddPlural( HB_COMP_PARAM, szPlurals, 1, szContext,
HB_COMP_PARAM->currModule, HB_COMP_PARAM->currLine );
}
else
hb_compI18nAdd( HB_COMP_PARAM, pArg->value.asString.string, szContext,
HB_COMP_PARAM->currModule, HB_COMP_PARAM->currLine );
}
}
else if( pCount && pArg->ExprType == HB_ET_ARRAY &&
hb_compExprListTypeCheck( pArg, HB_ET_STRING ) )
{
if( HB_COMP_PARAM->fI18n )
{
HB_ULONG ulLen = hb_compExprListLen( pArg ), ul;
PHB_EXPR pArgExp = pArg->value.asList.pExprList;
if( ulLen > HB_I18N_PLURAL_MAX )
ulLen = HB_I18N_PLURAL_MAX;
for( ul = 0; ul < ulLen; ++ul )
{
szPlurals[ ul ] = pArgExp->value.asString.string;
pArgExp = pArgExp->pNext;
}
hb_compI18nAddPlural( HB_COMP_PARAM, szPlurals, ulLen, szContext,
HB_COMP_PARAM->currModule, HB_COMP_PARAM->currLine );
}
}
else if( fStrict || fNoop || pArg->ExprType <= HB_ET_FUNREF )
{
iWarning = HB_COMP_WARN_PARAM_TYPE;
pBadParam = pArg;
szExpect = fPlural ? "String or Array of Strings" : "String";
}
}
else
iWarning = HB_COMP_WARN_PARAM_COUNT;
}
if( iWarning != 0 )
{
/* TODO: warning message does not fit very well, because it requires
* type of used parameter. Let's print "unknown", to avoid deeper
* analysis of parameter.
*/
if( iWarning == HB_COMP_WARN_PARAM_TYPE )
hb_compGenWarning( HB_COMP_PARAM, hb_comp_szWarnings, 'W', HB_COMP_WARN_PARAM_TYPE,
pBadParam && pBadParam->ExprType > HB_ET_NONE &&
pBadParam->ExprType <= HB_ET_FUNREF ?
hb_compExprDescription( pBadParam ) : "Unknown", szExpect );
else
{
char buf[ 16 ];
hb_snprintf( buf, sizeof( buf ), "%d", ( int ) usCount + ( pCount ? 1 : 0 ) + ( szContext ? 1 : 0 ) );
hb_compGenWarning( HB_COMP_PARAM, hb_comp_szWarnings, 'W', HB_COMP_WARN_PARAM_COUNT, buf, fPlural ? "2 or 3" : "1 or 2" );
}
}
/* hb_i18n_gettext_noop() is not a real function. It is used to
force writing of string to .pot file. So, we should try to
replace function call by first argument regardless fI18n flag
and warnings.
*/
else if( fNoop && usCount )
{
pParms->value.asList.pExprList = pArg->pNext; /* skip first parameter */
pArg->pNext = NULL;
HB_COMP_EXPR_FREE( pParms );
HB_COMP_EXPR_FREE( pSelf->value.asFunCall.pFunName );
if( pCount )
{
if( pArg->ExprType == HB_ET_ARRAY )
{
if( hb_compExprListLen( pArg ) == 1 )
{
HB_COMP_EXPR_FREE( pCount );
pCount = pArg;
pArg = pArg->value.asList.pExprList;
pCount->value.asList.pExprList = NULL;
}
else
{
/* build expression: pArray[ iif( pCount == 1, 1, 2 ) ] */
PHB_EXPR pIndex;
/* create pCount == 1 */
pIndex = hb_compExprSetOperand( hb_compExprNewEQ( pCount, HB_COMP_PARAM ),
hb_compExprNewLong( 1, HB_COMP_PARAM ), HB_COMP_PARAM );
/* create: ( pCount == 1, */
pIndex = hb_compExprNewList( pIndex, HB_COMP_PARAM );
/* create: ( pCount == 1, 1, */
pIndex = hb_compExprAddListExpr( pIndex, hb_compExprNewLong( 1, HB_COMP_PARAM ) );
/* create: ( pCount == 1, 1, 2 )*/
pIndex = hb_compExprAddListExpr( pIndex, hb_compExprNewLong( 2, HB_COMP_PARAM ) );
/* create: IIF() expression */
pIndex = hb_compExprNewIIF( pIndex );
/* create: pArray[ iif( pCount == 1, 1, 2 ) ] */
pArg = hb_compExprNewArrayAt( pArg, pIndex, HB_COMP_PARAM );
/* reduce the final expression */
pArg = HB_EXPR_USE( pArg, HB_EA_REDUCE );
pCount = NULL;
}
}
if( pCount )
HB_COMP_EXPR_FREE( pCount );
}
memcpy( pSelf, pArg, sizeof( HB_EXPR ) );
/* free pArg expression body but without freeing its subexpressions */
HB_COMP_EXPR_CLEAR( pArg );
}
break;
}
#endif
default:
/* to pacify enum warning */
break;
}
}
}
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
{
HB_BOOL fArgsList = HB_FALSE;
HB_USHORT usCount = 0;
/* NOTE: pParms will be NULL in 'DO procname' (if there is
* no WITH keyword)
*/
if( pSelf->value.asFunCall.pParms )
{
usCount = ( HB_USHORT ) hb_compExprParamListCheck( HB_COMP_PARAM, pSelf->value.asFunCall.pParms );
fArgsList = pSelf->value.asFunCall.pParms->ExprType == HB_ET_MACROARGLIST;
}
if( pSelf->value.asFunCall.pFunName->ExprType == HB_ET_FUNNAME )
{
if( ! fArgsList )
{
if( pSelf->value.asFunCall.pFunName->value.asSymbol.funcid == HB_F_ARRAYTOPARAMS &&
usCount == 1 &&
( pSelf->value.asFunCall.pFunName->value.asSymbol.flags & HB_FN_MULTIARG ) != 0 )
{
HB_EXPR_USE( pSelf->value.asFunCall.pParms, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PUSHAPARAMS );
break;
}
else if( pSelf->value.asFunCall.pFunName->value.asSymbol.funcid == HB_F_ARRAY &&
HB_SUPPORT_EXTOPT )
{
if( usCount )
HB_EXPR_USE( pSelf->value.asFunCall.pParms, HB_EA_PUSH_PCODE );
HB_GEN_FUNC3( PCode3, HB_P_ARRAYDIM, HB_LOBYTE( usCount ), HB_HIBYTE( usCount ) );
break;
}
}
HB_GEN_FUNC2( PushFunCall, pSelf->value.asFunCall.pFunName->value.asSymbol.name,
pSelf->value.asFunCall.pFunName->value.asSymbol.flags );
}
else
{
HB_EXPR_USE( pSelf->value.asFunCall.pFunName, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PUSHNIL );
}
if( usCount )
HB_EXPR_USE( pSelf->value.asFunCall.pParms, HB_EA_PUSH_PCODE );
if( fArgsList )
{
HB_GEN_FUNC3( PCode3, HB_P_MACROFUNC, HB_LOBYTE( usCount ), HB_HIBYTE( usCount ) );
/* restore original expression type */
pSelf->value.asFunCall.pParms->ExprType = HB_ET_ARGLIST;
}
else if( usCount > 255 )
HB_GEN_FUNC3( PCode3, HB_P_FUNCTION, HB_LOBYTE( usCount ), HB_HIBYTE( usCount ) );
else
HB_GEN_FUNC2( PCode2, HB_P_FUNCTIONSHORT, ( HB_BYTE ) usCount );
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
{
HB_BOOL fArgsList = HB_FALSE;
HB_USHORT usCount = 0;
if( pSelf->value.asFunCall.pFunName->ExprType == HB_ET_FUNNAME )
{
HB_GEN_FUNC2( PushFunCall, pSelf->value.asFunCall.pFunName->value.asSymbol.name,
pSelf->value.asFunCall.pFunName->value.asSymbol.flags );
}
else
{
HB_EXPR_USE( pSelf->value.asFunCall.pFunName, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PUSHNIL );
}
if( pSelf->value.asFunCall.pParms )
{
usCount = ( HB_USHORT ) hb_compExprParamListCheck( HB_COMP_PARAM, pSelf->value.asFunCall.pParms );
fArgsList = pSelf->value.asFunCall.pParms->ExprType == HB_ET_MACROARGLIST;
if( usCount )
HB_EXPR_USE( pSelf->value.asFunCall.pParms, HB_EA_PUSH_PCODE );
}
if( fArgsList )
{
HB_GEN_FUNC3( PCode3, HB_P_MACRODO, HB_LOBYTE( usCount ), HB_HIBYTE( usCount ) );
/* restore original expression type */
pSelf->value.asFunCall.pParms->ExprType = HB_ET_ARGLIST;
}
else if( usCount > 255 )
HB_GEN_FUNC3( PCode3, HB_P_DO, HB_LOBYTE( usCount ), HB_HIBYTE( usCount ) );
else
HB_GEN_FUNC2( PCode2, HB_P_DOSHORT, ( HB_BYTE ) usCount );
break;
}
case HB_EA_DELETE:
if( pSelf->value.asFunCall.pParms )
HB_COMP_EXPR_FREE( pSelf->value.asFunCall.pParms );
HB_COMP_EXPR_FREE( pSelf->value.asFunCall.pFunName );
break;
}
return pSelf;
}
/* handler for expression->identifier syntax
*/
static HB_EXPR_FUNC( hb_compExprUseAliasVar )
{
HB_TRACE( HB_TR_DEBUG, ( "hb_compExprUseAliasVar()" ) );
switch( iMessage )
{
case HB_EA_REDUCE:
/* NOTE: direct reduction not used for HB_ET_LIST to avoid
* list stripping before PUSH/POP operations
*/
if( pSelf->value.asAlias.pAlias->ExprType == HB_ET_LIST )
{
pSelf->value.asAlias.pAlias = hb_compExprReduceList(
pSelf->value.asAlias.pAlias, HB_COMP_PARAM );
if( HB_SUPPORT_EXTOPT &&
pSelf->value.asAlias.pAlias->value.asList.pExprList->ExprType == HB_ET_STRING &&
pSelf->value.asAlias.pAlias->value.asList.pExprList->pNext == NULL )
{
pSelf->value.asAlias.pAlias = hb_compExprReduceAliasString(
pSelf->value.asAlias.pAlias,
pSelf->value.asAlias.pAlias->value.asList.pExprList,
HB_COMP_PARAM );
}
}
else
pSelf->value.asAlias.pAlias = HB_EXPR_USE( pSelf->value.asAlias.pAlias, HB_EA_REDUCE );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
{
PHB_EXPR pAlias = pSelf->value.asAlias.pAlias;
if( pAlias->ExprType == HB_ET_MACRO ||
pSelf->value.asAlias.pVar->ExprType == HB_ET_MACRO )
{
/* Macro operator is used on the left or right side of an alias
* operator - handle it with a special care
*/
hb_compExprUseAliasMacro( pSelf, HB_EA_PUSH_PCODE, HB_COMP_PARAM );
}
else if( pAlias->ExprType == HB_ET_ALIAS )
{
/*
* myalias->var
* FIELD->var
* MEMVAR->var
*
* NOTE: HB_TRUE = push also alias
*/
HB_GEN_FUNC4( PushAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol.name, HB_TRUE, pAlias->value.asSymbol.name, 0 );
}
else if( pAlias->ExprType == HB_ET_NUMERIC )
{
/* numeric alias
* 2->var
*
* NOTE: only integer (long) values are allowed
*/
if( pAlias->value.asNum.NumType == HB_ET_LONG )
HB_GEN_FUNC4( PushAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol.name, HB_TRUE, NULL, pAlias->value.asNum.val.l );
else
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
}
else if( pAlias->ExprType == HB_ET_LIST )
{
/*
* ( expression )->var
*
* NOTE: HB_FALSE = don't push alias value
*/
HB_EXPR_USE( pAlias, HB_EA_PUSH_PCODE );
HB_GEN_FUNC4( PushAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol.name, HB_FALSE, NULL, 0 );
}
else
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
break;
}
case HB_EA_POP_PCODE:
{
PHB_EXPR pAlias = pSelf->value.asAlias.pAlias;
if( pAlias->ExprType == HB_ET_MACRO || pSelf->value.asAlias.pVar->ExprType == HB_ET_MACRO )
{
/* Macro operator is used on the left or right side of an alias
* operator - handle it with a special care
* (we need convert to a string the whole expression)
*/
hb_compExprUseAliasMacro( pSelf, HB_EA_POP_PCODE, HB_COMP_PARAM );
}
else if( pAlias->ExprType == HB_ET_ALIAS )
{
/*
* myalias->var
* FIELD->var
* MEMVAR->var
*/
HB_GEN_FUNC4( PopAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol.name, HB_TRUE, pAlias->value.asSymbol.name, 0 );
}
else if( pAlias->ExprType == HB_ET_NUMERIC )
{
/* numeric alias
* 2->var
*
* NOTE: only integer (long) values are allowed
*/
if( pAlias->value.asNum.NumType == HB_ET_LONG )
HB_GEN_FUNC4( PopAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol.name, HB_TRUE, NULL, pAlias->value.asNum.val.l );
else
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
}
else if( pAlias->ExprType == HB_ET_LIST )
{
/*
* ( expression )->var
*
* NOTE: HB_FALSE = don't push alias value
*/
HB_EXPR_USE( pAlias, HB_EA_PUSH_PCODE );
HB_GEN_FUNC4( PopAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol.name, HB_FALSE, NULL, 0 );
}
else
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
break;
}
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
break;
case HB_EA_DELETE:
HB_COMP_EXPR_FREE( pSelf->value.asAlias.pAlias );
if( pSelf->value.asAlias.pVar )
HB_COMP_EXPR_FREE( pSelf->value.asAlias.pVar );
break;
}
return pSelf;
}
/* handler for expression->( expression, ... ) syntax
*/
static HB_EXPR_FUNC( hb_compExprUseAliasExpr )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asAlias.pAlias = HB_EXPR_USE( pSelf->value.asAlias.pAlias, HB_EA_REDUCE );
pSelf->value.asAlias.pExpList = HB_EXPR_USE( pSelf->value.asAlias.pExpList, HB_EA_REDUCE );
if( HB_SUPPORT_EXTOPT && pSelf->value.asAlias.pAlias->ExprType == HB_ET_STRING )
pSelf->value.asAlias.pAlias = hb_compExprReduceAliasString(
pSelf->value.asAlias.pAlias,
pSelf->value.asAlias.pAlias, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
/* save currently selected workarea
*/
HB_GEN_FUNC1( PCode1, HB_P_PUSHALIAS );
/* push the expression that will return a new workarea
*/
HB_EXPR_USE( pSelf->value.asAlias.pAlias, HB_EA_PUSH_PCODE );
/* pop the value from the stack and select it as current workarea
*/
HB_GEN_FUNC1( PCode1, HB_P_POPALIAS );
/* evaluate any expression
*/
HB_EXPR_USE( pSelf->value.asAlias.pExpList, HB_EA_PUSH_PCODE );
/* swap the two last items on the eval stack: one item is a
* value returned by evaluated expression and the second item
* is previously selected workarea. After swapping select again
* the restored workarea.
*/
HB_GEN_FUNC1( PCode1, HB_P_SWAPALIAS );
break;
case HB_EA_POP_PCODE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
/* save currently selected workarea
*/
HB_GEN_FUNC1( PCode1, HB_P_PUSHALIAS );
/* push the expression that will return a new workarea
*/
HB_EXPR_USE( pSelf->value.asAlias.pAlias, HB_EA_PUSH_PCODE );
/* pop the value from the stack and select it as current workarea
*/
HB_GEN_FUNC1( PCode1, HB_P_POPALIAS );
/* evaluate any expression - it will not leave any return
* value on the eval stack
*/
HB_EXPR_USE( pSelf->value.asAlias.pExpList, HB_EA_PUSH_POP );
/* Pop and select again the restored workarea.
*/
HB_GEN_FUNC1( PCode1, HB_P_POPALIAS );
break;
case HB_EA_DELETE:
HB_COMP_EXPR_FREE( pSelf->value.asAlias.pAlias );
HB_COMP_EXPR_FREE( pSelf->value.asAlias.pExpList );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseAlias )
{
switch( iMessage )
{
case HB_EA_REDUCE:
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC2( PushSymbol, pSelf->value.asSymbol.name, HB_SYM_ALIAS );
break;
case HB_EA_POP_PCODE:
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
break;
case HB_EA_DELETE:
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseFunName )
{
switch( iMessage )
{
case HB_EA_REDUCE:
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
HB_GEN_FUNC2( PushFunSym, pSelf->value.asSymbol.name,
pSelf->value.asSymbol.flags );
break;
case HB_EA_POP_PCODE:
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
case HB_EA_DELETE:
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseRTVariable )
{
switch( iMessage )
{
case HB_EA_REDUCE:
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
if( pSelf->value.asRTVar.szName )
HB_GEN_FUNC2( PushSymbol, pSelf->value.asRTVar.szName, HB_SYM_MEMVAR ); /* this is not a function */
else
HB_EXPR_USE( pSelf->value.asRTVar.pMacro, HB_EA_PUSH_PCODE );
break;
case HB_EA_POP_PCODE:
if( pSelf->value.asRTVar.szName )
HB_GEN_FUNC1( PopMemvar, pSelf->value.asRTVar.szName );
else
HB_EXPR_USE( pSelf->value.asRTVar.pMacro, HB_EA_POP_PCODE );
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
break;
case HB_EA_DELETE:
#if ! defined( HB_MACRO_SUPPORT )
if( ! pSelf->value.asRTVar.szName )
HB_COMP_EXPR_FREE( pSelf->value.asRTVar.pMacro );
#endif
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseVariable )
{
switch( iMessage )
{
case HB_EA_REDUCE:
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
#if defined( HB_MACRO_SUPPORT )
/* NOTE: When the following syntax is used:
* ( any_expr )->&var2
* then macro compiler is compiling the right side of alias
* operator only (if 'any_expr' is not a string) - an alias value
* is placed on the eval stack before macro compilation.
* The HB_MACRO_GEN_ALIASED flag is used to signal that we have to
* generate alias aware pcode even if we known a variable part only.
*/
if( HB_MACRO_DATA->Flags & HB_MACRO_GEN_ALIASED )
HB_GEN_FUNC4( PushAliasedVar, pSelf->value.asSymbol.name, HB_FALSE, NULL, 0 );
else
HB_GEN_FUNC1( PushVar, pSelf->value.asSymbol.name );
#else
HB_GEN_FUNC1( PushVar, pSelf->value.asSymbol.name );
#endif
break;
case HB_EA_POP_PCODE:
#if defined( HB_MACRO_SUPPORT )
if( HB_MACRO_DATA->Flags & HB_MACRO_GEN_ALIASED )
HB_GEN_FUNC4( PopAliasedVar, pSelf->value.asSymbol.name, HB_FALSE, NULL, 0 );
else
HB_GEN_FUNC1( PopVar, pSelf->value.asSymbol.name );
#else
HB_GEN_FUNC1( PopVar, pSelf->value.asSymbol.name );
#endif
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_GEN_FUNC1( PushVar, pSelf->value.asSymbol.name );
HB_GEN_FUNC1( PCode1, HB_P_POP );
break;
case HB_EA_DELETE:
break;
}
return pSelf;
}
/* IIF( <pVar>==NIL, <pExpr>, <pExpr>:=<pVar> ) */
static HB_EXPR_FUNC( hb_compExprUseSetGet )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asSetGet.pVar = HB_EXPR_USE( pSelf->value.asSetGet.pVar, HB_EA_REDUCE );
pSelf->value.asSetGet.pExpr = HB_EXPR_USE( pSelf->value.asSetGet.pExpr, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asSetGet.pVar = hb_compExprListStrip( pSelf->value.asSetGet.pVar, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asSetGet.pExpr, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
{
HB_ISIZ nPosFalse, nPosEnd;
/* <pVar>==NIL */
HB_EXPR_USE( pSelf->value.asSetGet.pVar, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PUSHNIL );
HB_GEN_FUNC1( PCode1, HB_P_EXACTLYEQUAL );
nPosFalse = HB_GEN_FUNC1( JumpFalse, 0 );
/* <pExpr> */
HB_EXPR_USE( pSelf->value.asSetGet.pExpr, HB_EA_PUSH_PCODE );
nPosEnd = HB_GEN_FUNC1( Jump, 0 );
/* <pExpr>:=<pVar> */
HB_GEN_FUNC1( JumpHere, nPosFalse );
if( pSelf->value.asSetGet.pExpr->ExprType == HB_ET_SEND )
{
PHB_EXPR pObj, pParams;
pObj = pSelf->value.asSetGet.pExpr;
pParams = pObj->value.asMessage.pParms;
pObj->value.asMessage.pParms = pSelf->value.asSetGet.pVar;
HB_EXPR_USE( pObj, HB_EA_POP_PCODE );
pObj->value.asMessage.pParms = pParams;
}
else
{
HB_EXPR_USE( pSelf->value.asSetGet.pVar, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PUSHUNREF );
HB_EXPR_USE( pSelf->value.asSetGet.pExpr, HB_EA_POP_PCODE );
}
HB_GEN_FUNC1( JumpHere, nPosEnd );
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
{
HB_ISIZ nPosFalse, nPosEnd;
/* <pVar>==NIL */
HB_EXPR_USE( pSelf->value.asSetGet.pVar, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PUSHNIL );
HB_GEN_FUNC1( PCode1, HB_P_EXACTLYEQUAL );
nPosFalse = HB_GEN_FUNC1( JumpFalse, 0 );
/* <pExpr> */
HB_EXPR_USE( pSelf->value.asSetGet.pExpr, HB_EA_PUSH_PCODE );
nPosEnd = HB_GEN_FUNC1( Jump, 0 );
/* <pExpr>:=<pVar> */
HB_GEN_FUNC1( JumpHere, nPosFalse );
if( pSelf->value.asSetGet.pExpr->ExprType == HB_ET_SEND )
{
PHB_EXPR pObj, pParams;
pObj = pSelf->value.asSetGet.pExpr;
pParams = pObj->value.asMessage.pParms;
pObj->value.asMessage.pParms = pSelf->value.asSetGet.pVar;
HB_EXPR_USE( pObj, HB_EA_POP_PCODE );
pObj->value.asMessage.pParms = pParams;
/* Remove the return value */
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
else
{
HB_EXPR_USE( pSelf->value.asSetGet.pVar, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asSetGet.pExpr, HB_EA_POP_PCODE );
}
HB_GEN_FUNC1( JumpHere, nPosEnd );
break;
}
case HB_EA_DELETE:
HB_COMP_EXPR_FREE( pSelf->value.asSetGet.pExpr );
HB_COMP_EXPR_FREE( pSelf->value.asSetGet.pVar );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseSend )
{
switch( iMessage )
{
case HB_EA_REDUCE:
/* Clipper does not reduce object expressions */
if( pSelf->value.asMessage.pObject &&
( HB_SUPPORT_HARBOUR || pSelf->nLength == 1 ) )
pSelf->value.asMessage.pObject = HB_EXPR_USE( pSelf->value.asMessage.pObject, HB_EA_REDUCE );
if( pSelf->value.asMessage.pParms ) /* Is it a method call ? */
pSelf->value.asMessage.pParms = HB_EXPR_USE( pSelf->value.asMessage.pParms, HB_EA_REDUCE );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
if( pSelf->value.asMessage.pParms )
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
if( pSelf->value.asMessage.pParms ) /* Is it a method call ? */
{
HB_BOOL fArgsList = HB_FALSE;
int iParms = ( int ) hb_compExprParamListCheck( HB_COMP_PARAM, pSelf->value.asMessage.pParms );
hb_compExprPushSendPush( pSelf, HB_COMP_PARAM );
if( iParms )
{
HB_EXPR_USE( pSelf->value.asMessage.pParms, HB_EA_PUSH_PCODE );
fArgsList = pSelf->value.asMessage.pParms->ExprType == HB_ET_MACROARGLIST;
}
if( fArgsList )
{
HB_GEN_FUNC3( PCode3, HB_P_MACROSEND, HB_LOBYTE( iParms ), HB_HIBYTE( iParms ) );
/* restore original expression type */
pSelf->value.asMessage.pParms->ExprType = HB_ET_ARGLIST;
}
else if( iParms > 255 )
HB_GEN_FUNC3( PCode3, HB_P_SEND, HB_LOBYTE( iParms ), HB_HIBYTE( iParms ) );
else
HB_GEN_FUNC2( PCode2, HB_P_SENDSHORT, ( HB_BYTE ) iParms );
}
else
{
/* access to instance variable */
hb_compExprPushSendPush( pSelf, HB_COMP_PARAM );
HB_GEN_FUNC2( PCode2, HB_P_SENDSHORT, 0 );
}
break;
case HB_EA_POP_PCODE:
hb_compExprPushSendPop( pSelf, HB_COMP_PARAM );
if( pSelf->value.asMessage.pParms )
{
HB_EXPR_USE( pSelf->value.asMessage.pParms, HB_EA_PUSH_PCODE );
}
else
{
/* executed from macro compiler */
HB_GEN_FUNC2( PCode2, HB_P_SWAP, 1 );
HB_GEN_FUNC2( PCode2, HB_P_SWAP, 1 );
}
HB_GEN_FUNC2( PCode2, HB_P_SENDSHORT, 1 );
if( ! pSelf->value.asMessage.pParms )
HB_GEN_FUNC1( PCode1, HB_P_POP );
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
if( ! pSelf->value.asMessage.pParms ) /* Is it a method call ? */
{
/* instance variable */
/* QUESTION: This warning can be misleading if nested messages
* are used, e.g. a:b():c - should we generate it ?
*/
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
}
break;
case HB_EA_DELETE:
if( pSelf->value.asMessage.pObject )
HB_COMP_EXPR_FREE( pSelf->value.asMessage.pObject );
if( pSelf->value.asMessage.pParms )
HB_COMP_EXPR_FREE( pSelf->value.asMessage.pParms );
if( pSelf->value.asMessage.pMessage )
HB_COMP_EXPR_FREE( pSelf->value.asMessage.pMessage );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUsePostInc )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushPostOp( pSelf, HB_P_INC, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
/* a++ used standalone as a statement is the same as ++a
*/
hb_compExprUsePreOp( pSelf, HB_P_INC, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_FREE( pSelf->value.asOperator.pLeft );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUsePostDec )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushPostOp( pSelf, HB_P_DEC, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUsePreOp( pSelf, HB_P_DEC, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_FREE( pSelf->value.asOperator.pLeft );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseAssign )
{
switch( iMessage )
{
case HB_EA_REDUCE:
{
PHB_EXPR pExpr;
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
/* optimize:
* var := var <op> <exp>
* to:
* var <op>= <exp>
*/
pExpr = pSelf->value.asOperator.pRight;
if( HB_SUPPORT_HARBOUR &&
pSelf->value.asOperator.pLeft->ExprType == HB_ET_VARIABLE &&
( pExpr->ExprType == HB_EO_PLUS || pExpr->ExprType == HB_EO_MINUS ||
pExpr->ExprType == HB_EO_MULT || pExpr->ExprType == HB_EO_DIV ||
pExpr->ExprType == HB_EO_MOD || pExpr->ExprType == HB_EO_POWER ) &&
pExpr->value.asOperator.pLeft->ExprType == HB_ET_VARIABLE &&
strcmp( pSelf->value.asOperator.pLeft->value.asSymbol.name,
pExpr->value.asOperator.pLeft->value.asSymbol.name ) == 0 )
{
/* NOTE: direct type change */
switch( pExpr->ExprType )
{
case HB_EO_PLUS:
pSelf->ExprType = HB_EO_PLUSEQ;
break;
case HB_EO_MINUS:
pSelf->ExprType = HB_EO_MINUSEQ;
break;
case HB_EO_MULT:
pSelf->ExprType = HB_EO_MULTEQ;
break;
case HB_EO_DIV:
pSelf->ExprType = HB_EO_DIVEQ;
break;
case HB_EO_MOD:
pSelf->ExprType = HB_EO_MODEQ;
break;
case HB_EO_POWER:
pSelf->ExprType = HB_EO_EXPEQ;
break;
}
pSelf->value.asOperator.pRight = pExpr->value.asOperator.pRight;
pExpr->value.asOperator.pRight = NULL;
HB_COMP_EXPR_FREE( pExpr );
}
break;
}
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
/* NOTE: assignment to an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
PHB_EXPR pObj, pParams;
pObj = pSelf->value.asOperator.pLeft;
pParams = pObj->value.asMessage.pParms;
pObj->value.asMessage.pParms = pSelf->value.asOperator.pRight;
HB_EXPR_USE( pObj, HB_EA_POP_PCODE );
pObj->value.asMessage.pParms = pParams;
}
else
{
/* it assigns a value and leaves it on the stack */
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
/* QUESTION: Can we replace DUPLICATE+POP with a single PUT opcode
*/
HB_GEN_FUNC1( PCode1, HB_P_PUSHUNREF );
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_POP_PCODE );
}
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
/* NOTE: assigment to an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
PHB_EXPR pObj, pParams;
pObj = pSelf->value.asOperator.pLeft;
pParams = pObj->value.asMessage.pParms;
pObj->value.asMessage.pParms = pSelf->value.asOperator.pRight;
HB_EXPR_USE( pObj, HB_EA_POP_PCODE );
pObj->value.asMessage.pParms = pParams;
/* Remove the return value */
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
else
{
/* it assigns a value and removes it from the stack */
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_POP_PCODE );
}
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUsePlusEq )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushOperEq( pSelf, HB_P_PLUS, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUseOperEq( pSelf, HB_P_PLUS, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseMinusEq )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushOperEq( pSelf, HB_P_MINUS, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUseOperEq( pSelf, HB_P_MINUS, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseMultEq )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushOperEq( pSelf, HB_P_MULT, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUseOperEq( pSelf, HB_P_MULT, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseDivEq )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushOperEq( pSelf, HB_P_DIVIDE, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUseOperEq( pSelf, HB_P_DIVIDE, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseModEq )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushOperEq( pSelf, HB_P_MODULUS, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUseOperEq( pSelf, HB_P_MODULUS, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseExpEq )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushOperEq( pSelf, HB_P_POWER, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUseOperEq( pSelf, HB_P_POWER, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseOr )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceOr( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf );
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
if( HB_COMP_ISSUPPORTED( HB_COMPFLAG_SHORTCUTS ) )
{
HB_ISIZ nEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
nEndPos = HB_GEN_FUNC1( JumpTrue, 0 );
HB_GEN_FUNC1( PCode1, HB_P_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( JumpHere, nEndPos );
}
else
{
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_OR );
}
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_COMP_ISSUPPORTED( HB_COMPFLAG_SHORTCUTS ) )
{
HB_ISIZ nEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
nEndPos = HB_GEN_FUNC1( JumpTrue, 0 );
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
#if defined( HB_MACRO_SUPPORT )
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
#else
{
HB_BOOL fMeaningful = HB_COMP_PARAM->fMeaningful;
/* do not generate warning about meaningless expression usage */
HB_COMP_PARAM->fMeaningful = HB_TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
HB_COMP_PARAM->fMeaningful = fMeaningful;
}
#endif
HB_GEN_FUNC1( JumpHere, nEndPos );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseAnd )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceAnd( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf );
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
if( HB_COMP_ISSUPPORTED( HB_COMPFLAG_SHORTCUTS ) )
{
HB_ISIZ nEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
nEndPos = HB_GEN_FUNC1( JumpFalse, 0 );
HB_GEN_FUNC1( PCode1, HB_P_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( JumpHere, nEndPos );
}
else
{
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_AND );
}
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_COMP_ISSUPPORTED( HB_COMPFLAG_SHORTCUTS ) )
{
HB_ISIZ nEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
nEndPos = HB_GEN_FUNC1( JumpFalse, 0 );
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
#if defined( HB_MACRO_SUPPORT )
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
#else
{
HB_BOOL fMeaningful = HB_COMP_PARAM->fMeaningful;
/* do not generate warning about meaningless expression usage */
HB_COMP_PARAM->fMeaningful = HB_TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
HB_COMP_PARAM->fMeaningful = fMeaningful;
}
#endif
HB_GEN_FUNC1( JumpHere, nEndPos );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseNot )
{
switch( iMessage )
{
case HB_EA_REDUCE:
{
PHB_EXPR pExpr;
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pExpr = pSelf->value.asOperator.pLeft;
if( pExpr->ExprType == HB_ET_LOGICAL )
{
pExpr->value.asLogical = ! pExpr->value.asLogical;
HB_COMP_EXPR_CLEAR( pSelf );
pSelf = pExpr;
}
else if( pExpr->ExprType == HB_EO_NOT && HB_SUPPORT_EXTOPT )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
pExpr->ExprType = HB_ET_NONE; /* do not delete operator parameter - we are still using it */
pExpr = pExpr->value.asOperator.pLeft;
HB_COMP_EXPR_FREE( pSelf );
pSelf = pExpr;
}
break;
}
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
hb_compErrorIndex( HB_COMP_PARAM, pSelf );
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_NOT );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
HB_COMP_EXPR_FREE( pSelf->value.asOperator.pLeft );
break;
}
return pSelf;
}
/* handler for = operator
*/
static HB_EXPR_FUNC( hb_compExprUseEqual )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceEQ( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_EQUAL );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
/* handler for == operator
*/
static HB_EXPR_FUNC( hb_compExprUseEQ )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceEQ( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_EXACTLYEQUAL );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseLT )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceLT( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_LESS );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseGT )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceGT( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_GREATER );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseLE )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceLE( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_LESSEQUAL );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseGE )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceGE( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_GREATEREQUAL );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseNE )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceNE( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_NOTEQUAL );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseIN )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceIN( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_INSTRING );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUsePlus )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReducePlus( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
if( HB_SUPPORT_EXTOPT )
{
PHB_EXPR pLeft, pRight;
pLeft = pSelf->value.asOperator.pLeft;
pRight = pSelf->value.asOperator.pRight;
if( pLeft->ExprType == HB_ET_NUMERIC )
{
if( pLeft->value.asNum.NumType == HB_ET_LONG ?
pLeft->value.asNum.val.l == 1 :
pLeft->value.asNum.val.d == 1 )
{
HB_EXPR_USE( pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_INC );
break;
}
else if( pLeft->value.asNum.NumType == HB_ET_LONG ?
pLeft->value.asNum.val.l == -1 :
pLeft->value.asNum.val.d == -1 )
{
HB_EXPR_USE( pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DEC );
break;
}
}
else if( pRight->ExprType == HB_ET_NUMERIC )
{
if( pRight->value.asNum.NumType == HB_ET_LONG ?
pRight->value.asNum.val.l == 1 :
pRight->value.asNum.val.d == 1 )
{
HB_EXPR_USE( pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_INC );
break;
}
else if( pRight->value.asNum.NumType == HB_ET_LONG ?
pRight->value.asNum.val.l == -1 :
pRight->value.asNum.val.d == -1 )
{
HB_EXPR_USE( pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DEC );
break;
}
}
}
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PLUS );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseMinus )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceMinus( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
if( HB_SUPPORT_EXTOPT )
{
PHB_EXPR pRight = pSelf->value.asOperator.pRight;
if( pRight->ExprType == HB_ET_NUMERIC )
{
if( pRight->value.asNum.NumType == HB_ET_LONG ?
pRight->value.asNum.val.l == 1 :
pRight->value.asNum.val.d == 1 )
{
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DEC );
break;
}
else if( pRight->value.asNum.NumType == HB_ET_LONG ?
pRight->value.asNum.val.l == -1 :
pRight->value.asNum.val.d == -1 )
{
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_INC );
break;
}
}
}
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_MINUS );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseMult )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceMult( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_MULT );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseDiv )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceDiv( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DIVIDE );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseMod )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
pSelf = hb_compExprReduceMod( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_MODULUS );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUsePower )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf->value.asOperator.pRight = HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_REDUCE );
if( HB_SUPPORT_HARBOUR ) /* Clipper doesn't optimize it */
pSelf = hb_compExprReducePower( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POWER );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
hb_compExprDelOperator( pSelf, HB_COMP_PARAM );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseNegate )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
pSelf = hb_compExprReduceNegate( pSelf, HB_COMP_PARAM );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_NEGATE );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
if( HB_SUPPORT_HARBOUR )
{
/* NOTE: This will not generate a runtime error if incompatible
* data type is used
*/
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_POP );
}
else
{
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
break;
case HB_EA_STATEMENT:
HB_COMP_ERROR_SYNTAX( pSelf );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_FREE( pSelf->value.asOperator.pLeft );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUsePreInc )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushPreOp( pSelf, HB_P_INC, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUsePreOp( pSelf, HB_P_INC, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_FREE( pSelf->value.asOperator.pLeft );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUsePreDec )
{
switch( iMessage )
{
case HB_EA_REDUCE:
pSelf->value.asOperator.pLeft = HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_REDUCE );
#if ! defined( HB_MACRO_SUPPORT )
if( ! HB_SUPPORT_HARBOUR )
pSelf->value.asOperator.pLeft = hb_compExprListStrip( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
#endif
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_LVALUE );
break;
case HB_EA_ARRAY_AT:
HB_COMP_ERROR_TYPE( pSelf );
break;
case HB_EA_ARRAY_INDEX:
break;
case HB_EA_LVALUE:
hb_compErrorLValue( HB_COMP_PARAM, pSelf );
break;
case HB_EA_PUSH_PCODE:
hb_compExprPushPreOp( pSelf, HB_P_DEC, HB_COMP_PARAM );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compExprUsePreOp( pSelf, HB_P_DEC, HB_COMP_PARAM );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_FREE( pSelf->value.asOperator.pLeft );
break;
}
return pSelf;
}
/* ************************************************************************* */
/* This generates a push pcode for a codeblock (with no macro expression or
with late evaluation of a macro)
*/
#if defined( HB_MACRO_SUPPORT )
static void hb_compExprCodeblockPush( PHB_EXPR pSelf, HB_COMP_DECL )
#else
static HB_BOOL hb_compExprCodeblockPush( PHB_EXPR pSelf, int iEarlyEvalPass, HB_COMP_DECL )
#endif
{
PHB_EXPR pExpr, pNext;
PHB_EXPR * pPrev;
/* Define requested local variables
*/
#if defined( HB_MACRO_SUPPORT )
hb_macroCodeBlockStart( HB_COMP_PARAM );
HB_PCODE_DATA->pLocals = pSelf->value.asCodeblock.pLocals;
HB_PCODE_DATA->fVParams =
( pSelf->value.asCodeblock.flags & HB_BLOCK_VPARAMS ) != 0;
#else
hb_compCodeBlockStart( HB_COMP_PARAM, iEarlyEvalPass );
HB_COMP_PARAM->functions.pLast->fVParams =
( pSelf->value.asCodeblock.flags & HB_BLOCK_VPARAMS ) != 0;
{
PHB_CBVAR pVar;
HB_COMP_PARAM->iVarScope = HB_VSCOMP_PARAMETER;
pVar = pSelf->value.asCodeblock.pLocals;
while( pVar )
{
hb_compVariableAdd( HB_COMP_PARAM, pVar->szName, hb_compVarTypeNew( HB_COMP_PARAM, pVar->bType, NULL ) );
pVar = pVar->pNext;
}
}
hb_compLinePushIfDebugger( HB_COMP_PARAM );
#endif
pExpr = pSelf->value.asCodeblock.pExprList;
pPrev = &pSelf->value.asCodeblock.pExprList;
while( pExpr )
{
if( pExpr->ExprType == HB_ET_MACRO &&
( pExpr->value.asMacro.SubType & HB_ET_MACRO_NOPARE ) == 0 )
{
/* Clipper allows for list expressions in a codeblock
* macro := "1,2"
* Eval( {|| &macro} )
*/
pExpr->value.asMacro.SubType |= HB_ET_MACRO_PARE;
}
/* store next expression in case the current will be reduced
* NOTE: During reduction the expression can be replaced by the
* new one - this will break the linked list of expressions.
*/
pNext = pExpr->pNext; /* store next expression in case the current will be reduced */
if( ( pSelf->value.asCodeblock.flags & HB_BLOCK_REDUCE ) != 0 ||
HB_SUPPORT_HARBOUR )
{
*pPrev = pExpr = HB_EXPR_USE( pExpr, HB_EA_REDUCE );
pExpr->pNext = pNext; /* restore the link to next expression */
}
/* Generate push/pop pcodes for all expressions except the last one
* The value of the last expression is used as a return value
* of a codeblock evaluation
*/
/* NOTE: This will generate warnings if constant value is
* used as an expression - some operators will generate it too
* e.g.
* Eval( {|| 3+5, func()} )
*/
#if defined( HB_MACRO_SUPPORT )
if( pNext )
HB_EXPR_USE( pExpr, HB_EA_PUSH_POP );
else
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
#else
if( pNext && ( iEarlyEvalPass == 0 || HB_SUPPORT_MACRODECL ) )
HB_EXPR_USE( pExpr, HB_EA_PUSH_POP );
else
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
#endif
pPrev = &pExpr->pNext;
pExpr = pNext;
}
#if defined( HB_MACRO_SUPPORT )
hb_macroCodeBlockEnd( HB_COMP_PARAM );
#else
if( HB_COMP_PARAM->functions.pLast->iEarlyEvalPass == 0 )
{
hb_compCodeBlockEnd( HB_COMP_PARAM );
return HB_TRUE;
}
else
{
hb_compCodeBlockRewind( HB_COMP_PARAM );
return HB_FALSE;
}
#endif
}
/* This generates a push pcode for early evaluation of a macro
*/
#if ! defined( HB_MACRO_SUPPORT )
static void hb_compExprCodeblockExtPush( PHB_EXPR pSelf, HB_COMP_DECL )
{
hb_compGenPCodeN( ( HB_BYTE * ) pSelf->value.asCodeblock.string,
pSelf->nLength, HB_COMP_PARAM );
}
static void hb_compExprCodeblockEarly( PHB_EXPR pSelf, HB_COMP_DECL )
{
PHB_EXPR pExpr;
/* check first expression */
pExpr = pSelf->value.asCodeblock.pExprList;
if( pExpr->ExprType == HB_ET_MACRO && pExpr->value.asMacro.cMacroOp &&
pExpr->pNext == NULL )
{
/* simple macro variable expansion: &variable
* 'szMacro' is a variable name
* {|| &variable} => &( '{||' + variable +'}' )
*/
PHB_EXPR pVar, pNew;
pVar = hb_compExprNewVar( pExpr->value.asMacro.szMacro, HB_COMP_PARAM );
pNew = hb_compExprNewString( "{||", 3, HB_FALSE, HB_COMP_PARAM );
pNew = hb_compExprSetOperand( hb_compExprNewPlus( pNew, HB_COMP_PARAM ), pVar, HB_COMP_PARAM );
pNew = hb_compExprSetOperand( hb_compExprNewPlus( pNew, HB_COMP_PARAM ), hb_compExprNewString( "}", 1, HB_FALSE, HB_COMP_PARAM ), HB_COMP_PARAM );
pNew = hb_compExprNewMacro( pNew, 0, NULL, HB_COMP_PARAM );
HB_EXPR_USE( pNew, HB_EA_PUSH_PCODE );
HB_COMP_EXPR_FREE( pNew );
}
else
{
/* generate code to check if macro-expression refers to local, static
* or field variables and generate error in such case or disable
* iEarlyEvalPass when -kd (MACRODECL) switch is used.
* In the 2nd case hb_compExprCodeblockPush() returns true and generated
* code is accepted otherwise discarded and we have to generate macro
* codeblock compiled at runtime.
*/
if( ! hb_compExprCodeblockPush( pSelf, 1, HB_COMP_PARAM ) )
{
/* -kd is not necessary, everything else is macro compiled at runtime
* {|| &variable+1} => &( '{|| &variable+1}' )
*/
HB_BOOL fMacroText = ( HB_COMP_PARAM->supported & HB_COMPFLAG_MACROTEXT ) != 0;
HB_COMP_PARAM->supported |= HB_COMPFLAG_MACROTEXT;
HB_COMP_PARAM->functions.pLast->iEarlyEvalPass = 2;
pExpr = hb_compExprNewMacro( hb_compExprNewString( pSelf->value.asCodeblock.string, pSelf->nLength, HB_FALSE, HB_COMP_PARAM ), 0, NULL, HB_COMP_PARAM );
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
HB_COMP_EXPR_FREE( pExpr );
hb_compCodeBlockStop( HB_COMP_PARAM );
if( ! fMacroText )
HB_COMP_PARAM->supported &= ~HB_COMPFLAG_MACROTEXT;
}
}
}
#endif /*HB_MACRO_SUPPORT*/
static void hb_compExprPushSendPop( PHB_EXPR pSelf, HB_COMP_DECL )
{
if( pSelf->value.asMessage.pObject )
{
/* Push _message */
if( pSelf->value.asMessage.szMessage )
{
HB_GEN_FUNC2( MessageData, pSelf->value.asMessage.szMessage, HB_TRUE );
}
else
{
if( pSelf->value.asMessage.pMessage->ExprType == HB_ET_MACRO )
/* o:&macro := value
* set ASSIGN flag in macro expression
* it's cleared just after use
*/
pSelf->value.asMessage.pMessage->value.asMacro.SubType |= HB_ET_MACRO_ASSIGN;
HB_EXPR_USE( pSelf->value.asMessage.pMessage, HB_EA_PUSH_PCODE );
}
/* Push object */
HB_EXPR_USE( pSelf->value.asMessage.pObject, HB_EA_PUSH_PCODE );
}
else /* WITH OBJECT */
{
/* Push _message and object */
if( pSelf->value.asMessage.szMessage )
{
HB_GEN_FUNC2( MessageData, pSelf->value.asMessage.szMessage, HB_FALSE );
}
else
{
if( pSelf->value.asMessage.pMessage->ExprType == HB_ET_MACRO )
/* o:&macro := value
* set ASSIGN flag in macro expression
* it's cleared just after use
*/
pSelf->value.asMessage.pMessage->value.asMacro.SubType |= HB_ET_MACRO_ASSIGN;
HB_EXPR_USE( pSelf->value.asMessage.pMessage, HB_EA_PUSH_PCODE );
/* Push object using WITHOBJECTMESSAGE pcode */
HB_GEN_FUNC2( Message, NULL, HB_FALSE );
}
}
}
static void hb_compExprPushSendPush( PHB_EXPR pSelf, HB_COMP_DECL )
{
if( pSelf->value.asMessage.pObject )
{
/* Push message */
if( pSelf->value.asMessage.szMessage )
{
HB_GEN_FUNC2( Message, pSelf->value.asMessage.szMessage, HB_TRUE );
}
else
{
HB_EXPR_USE( pSelf->value.asMessage.pMessage, HB_EA_PUSH_PCODE );
}
/* Push object */
HB_EXPR_USE( pSelf->value.asMessage.pObject, HB_EA_PUSH_PCODE );
}
else /* WITH OBJECT */
{
if( pSelf->value.asMessage.szMessage )
{
/* Push message and object */
HB_GEN_FUNC2( Message, pSelf->value.asMessage.szMessage, HB_FALSE );
}
else
{
/* Push message */
HB_EXPR_USE( pSelf->value.asMessage.pMessage, HB_EA_PUSH_PCODE );
/* Push object using WITHOBJECTMESSAGE pcode */
HB_GEN_FUNC2( Message, NULL, HB_FALSE );
}
}
}
static void hb_compExprPushSendPopPush( PHB_EXPR pObj, PHB_EXPR pValue,
HB_BOOL fPreOp, HB_BYTE bOper, HB_COMP_DECL )
{
if( HB_SUPPORT_HARBOUR )
{
hb_compExprPushSendPop( pObj, HB_COMP_PARAM );
/* duplicate object variable */
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
/* Push message */
if( pObj->value.asMessage.szMessage )
{
/* HB_TRUE used intentionally not to push object variable in WITH OBJECT */
HB_GEN_FUNC2( Message, pObj->value.asMessage.szMessage, HB_TRUE );
}
else
{
HB_EXPR_USE( pObj->value.asMessage.pMessage, HB_EA_PUSH_PCODE );
}
HB_GEN_FUNC2( PCode2, HB_P_SWAP, 0 );
HB_GEN_FUNC2( PCode2, HB_P_SENDSHORT, 0 );
if( fPreOp )
{
/* push the result on the stack */
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
HB_GEN_FUNC2( PCode2, HB_P_SWAP, 2 );
}
}
else
{
if( fPreOp )
{
/* push current value - it will be a result of whole expression */
HB_EXPR_USE( pObj, HB_EA_PUSH_PCODE );
}
hb_compExprPushSendPop( pObj, HB_COMP_PARAM );
hb_compExprPushSendPush( pObj, HB_COMP_PARAM );
HB_GEN_FUNC2( PCode2, HB_P_SENDSHORT, 0 );
}
/* push increment value */
if( pValue )
{
HB_EXPR_USE( pValue, HB_EA_PUSH_PCODE );
}
/* do operation */
HB_GEN_FUNC1( PCode1, bOper );
/* Now do the assignment - call pop message with one argument */
HB_GEN_FUNC2( PCode2, HB_P_SENDSHORT, 1 );
if( fPreOp )
{
/* pop the unneeded value left by assignment message from the stack */
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
}
/* Generates pcodes for compound operators += -= *= /= %= ^=
*
* pExpr is an expression created by hb_compExprNew<operator>Eq functions
*/
/* NOTE: COMPATIBILITY ISSUE:
* The HB_SUPPORT_HARBOUR in code below determines
* the way the chained send messages are handled.
* For example, the following code:
*
* a:b( COUNT() ):c += 1
*
* will be handled as:
*
* a:b( COUNT() ):c := a:b( COUNT() ):c + 1
*
* in strict Clipper compatibility mode
* (HB_SUPPORT_HARBOUR is not set: -kc compiler switch ) and
*
* temp := a:b( COUNT() ), temp:c += 1
*
* in non-strict mode (-kh).
* In practice in Clipper it will call COUNT() function two times: the
* first time before addition and the second one after addition - in Harbour,
* COUNT() function will be called only once, before addition.
* The Harbour (non-strict) method is:
* 1) faster
* 2) it guarantees that the same instance variable of the same object will
* be changed
*/
static void hb_compExprPushOperEq( PHB_EXPR pSelf, HB_BYTE bOpEq, HB_COMP_DECL )
{
HB_BYTE bNewOp;
if( HB_SUPPORT_HARBOUR )
{
switch( bOpEq )
{
case HB_P_PLUS:
bNewOp = HB_P_PLUSEQ;
break;
case HB_P_MINUS:
bNewOp = HB_P_MINUSEQ;
break;
case HB_P_MULT:
bNewOp = HB_P_MULTEQ;
break;
case HB_P_DIVIDE:
bNewOp = HB_P_DIVEQ;
break;
case HB_P_MODULUS:
bNewOp = HB_P_MODEQ;
break;
case HB_P_POWER:
bNewOp = HB_P_EXPEQ;
break;
default:
bNewOp = bOpEq;
break;
}
}
else
bNewOp = bOpEq;
/* NOTE: an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
#ifdef HB_USE_OBJMSG_REF
if( HB_SUPPORT_EXTOPT && bOpEq != bNewOp )
{
hb_compExprPushSendPop( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
/* push increment value */
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft,
pSelf->value.asOperator.pRight,
HB_FALSE, bOpEq, HB_COMP_PARAM );
}
return;
}
else if( bOpEq != bNewOp )
{
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_MACRO )
{
HB_USHORT usType = pSelf->value.asOperator.pLeft->value.asMacro.SubType;
if( usType & HB_ET_MACRO_VAR )
{
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->value.asMacro.SubType = usType;
return;
}
}
#ifdef HB_USE_ARRAYAT_REF
/* NOTE: code for arrays is differ to correctly handle a[ i++ ]++ */
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_ARRAYAT )
{
/* Note: change type to array reference */
pSelf->value.asOperator.pLeft->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = HB_FALSE;
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
return;
}
#endif
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_VARIABLE )
{
#if defined( HB_MACRO_SUPPORT )
{
#else
int iVar, iScope;
hb_compVariableFind( HB_COMP_PARAM, pSelf->value.asOperator.pLeft->value.asSymbol.name, &iVar, &iScope );
if( iScope != HB_VS_LOCAL_FIELD && iScope != HB_VS_GLOBAL_FIELD &&
iScope != HB_VS_UNDECLARED )
{
if( iScope == HB_VS_LOCAL_VAR &&
pSelf->value.asOperator.pRight->ExprType == HB_ET_NUMERIC &&
( bOpEq == HB_P_PLUS || bOpEq == HB_P_MINUS ) )
{
if( hb_compExprIsInteger( pSelf->value.asOperator.pRight ) )
{
short iIncrement = ( short ) pSelf->value.asOperator.pRight->value.asNum.val.l;
if( bOpEq != HB_P_MINUS || iIncrement >= -INT16_MAX )
{
HB_BYTE buffer[ 5 ];
if( bOpEq == HB_P_MINUS )
iIncrement = -iIncrement;
buffer[ 0 ] = HB_P_LOCALADDINT;
buffer[ 1 ] = HB_LOBYTE( iVar );
buffer[ 2 ] = HB_HIBYTE( iVar );
buffer[ 3 ] = HB_LOBYTE( iIncrement );
buffer[ 4 ] = HB_HIBYTE( iIncrement );
HB_GEN_FUNC2( PCodeN, buffer, 5 );
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
return;
}
}
}
#endif
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARIABLE;
return;
}
}
}
/* push old value */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* push increment value */
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
/* perform operation and duplicate the new value */
HB_GEN_FUNC1( PCode1, bOpEq );
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
/* pop the new value into variable and leave the copy on the stack */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_POP_PCODE );
}
/* Generates pcodes for <operator>= syntax
* used standalone as a statement (it cannot leave the value on the stack)
*/
static void hb_compExprUseOperEq( PHB_EXPR pSelf, HB_BYTE bOpEq, HB_COMP_DECL )
{
HB_BYTE bNewOp;
if( HB_SUPPORT_HARBOUR )
{
switch( bOpEq )
{
case HB_P_PLUS:
bNewOp = HB_P_PLUSEQPOP;
break;
case HB_P_MINUS:
bNewOp = HB_P_MINUSEQPOP;
break;
case HB_P_MULT:
bNewOp = HB_P_MULTEQPOP;
break;
case HB_P_DIVIDE:
bNewOp = HB_P_DIVEQPOP;
break;
case HB_P_MODULUS:
bNewOp = HB_P_MODEQPOP;
break;
case HB_P_POWER:
bNewOp = HB_P_EXPEQPOP;
break;
default:
bNewOp = bOpEq;
break;
}
}
else
bNewOp = bOpEq;
/* NOTE: an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
#ifdef HB_USE_OBJMSG_REF
if( HB_SUPPORT_EXTOPT && bOpEq != bNewOp )
{
hb_compExprPushSendPop( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
/* push increment value */
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft,
pSelf->value.asOperator.pRight,
HB_FALSE, bOpEq, HB_COMP_PARAM );
/* pop the unneeded value from the stack */
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
return;
}
else if( bOpEq != bNewOp )
{
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_MACRO )
{
HB_USHORT usType = pSelf->value.asOperator.pLeft->value.asMacro.SubType;
if( usType & HB_ET_MACRO_VAR )
{
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->value.asMacro.SubType = usType;
return;
}
}
#ifdef HB_USE_ARRAYAT_REF
/* NOTE: code for arrays is differ to correctly handle a[ i++ ]++ */
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_ARRAYAT )
{
/* Note: change type to array reference */
pSelf->value.asOperator.pLeft->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = HB_FALSE;
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
return;
}
#endif
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_VARIABLE )
{
#if defined( HB_MACRO_SUPPORT )
{
#else
int iVar, iScope;
hb_compVariableFind( HB_COMP_PARAM, pSelf->value.asOperator.pLeft->value.asSymbol.name, &iVar, &iScope );
if( iScope != HB_VS_LOCAL_FIELD && iScope != HB_VS_GLOBAL_FIELD &&
iScope != HB_VS_UNDECLARED )
{
if( iScope == HB_VS_LOCAL_VAR &&
pSelf->value.asOperator.pRight->ExprType == HB_ET_NUMERIC &&
( bOpEq == HB_P_PLUS || bOpEq == HB_P_MINUS ) )
{
if( hb_compExprIsInteger( pSelf->value.asOperator.pRight ) )
{
short iIncrement = ( short ) pSelf->value.asOperator.pRight->value.asNum.val.l;
if( bOpEq != HB_P_MINUS || iIncrement >= -INT16_MAX )
{
HB_BYTE buffer[ 5 ];
if( bOpEq == HB_P_MINUS )
iIncrement = -iIncrement;
buffer[ 0 ] = HB_P_LOCALADDINT;
buffer[ 1 ] = HB_LOBYTE( iVar );
buffer[ 2 ] = HB_HIBYTE( iVar );
buffer[ 3 ] = HB_LOBYTE( iIncrement );
buffer[ 4 ] = HB_HIBYTE( iIncrement );
HB_GEN_FUNC2( PCodeN, buffer, 5 );
return;
}
}
}
#endif
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, bNewOp );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARIABLE;
return;
}
}
}
/* push old value */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* push increment value */
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_PCODE );
/* add */
HB_GEN_FUNC1( PCode1, bOpEq );
/* pop the new value into variable and remove it from the stack */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_POP_PCODE );
}
/* Generates the pcodes for pre- increment/decrement expressions
*/
static void hb_compExprPushPreOp( PHB_EXPR pSelf, HB_BYTE bOper, HB_COMP_DECL )
{
/* NOTE: an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
#ifdef HB_USE_OBJMSG_REF
if( HB_SUPPORT_EXTOPT )
{
hb_compExprPushSendPop( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
/* increase/decrease operation, leave unreferenced value on stack */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( ( bOper == HB_P_INC ) ? HB_P_INCEQ : HB_P_DECEQ ) );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft, NULL,
HB_FALSE, bOper, HB_COMP_PARAM );
}
return;
}
else if( HB_SUPPORT_HARBOUR )
{
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_MACRO &&
pSelf->value.asOperator.pLeft->value.asMacro.SubType & HB_ET_MACRO_VAR )
{
HB_USHORT usType = pSelf->value.asOperator.pLeft->value.asMacro.SubType;
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->value.asMacro.SubType = usType;
/* increase/decrease operation, leave unreferenced value on stack */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQ : HB_P_DECEQ ) );
return;
}
#ifdef HB_USE_ARRAYAT_REF
/* NOTE: code for arrays is differ to correctly handle a[ i++ ]++ */
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_ARRAYAT )
{
/* push reference to current value */
/* Note: change type to array reference */
pSelf->value.asOperator.pLeft->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = HB_FALSE;
/* increase/decrease operation, leave unreferenced value on stack */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQ : HB_P_DECEQ ) );
return;
}
#endif
#if ! defined( HB_MACRO_SUPPORT )
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_VARIABLE )
{
int iVar, iScope;
hb_compVariableFind( HB_COMP_PARAM, pSelf->value.asOperator.pLeft->value.asSymbol.name, &iVar, &iScope );
if( iScope != HB_VS_LOCAL_FIELD && iScope != HB_VS_GLOBAL_FIELD &&
iScope != HB_VS_UNDECLARED )
{
if( iScope == HB_VS_LOCAL_VAR )
{
if( bOper == HB_P_INC )
{
HB_GEN_FUNC3( PCode3, HB_P_LOCALINCPUSH, HB_LOBYTE( iVar ), HB_HIBYTE( iVar ) );
}
else
{
HB_GEN_FUNC3( PCode3, HB_P_LOCALDEC, HB_LOBYTE( iVar ), HB_HIBYTE( iVar ) );
/* Push current value */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
}
}
else
{
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQ : HB_P_DECEQ ) );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARIABLE;
}
return;
}
}
#endif
}
/* Push current value */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* Increment */
HB_GEN_FUNC1( PCode1, bOper );
/* duplicate a value */
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
/* pop new value and leave the duplicated copy of it on the stack */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_POP_PCODE );
}
/* Generates the pcodes for post- increment/decrement expressions
*/
static void hb_compExprPushPostOp( PHB_EXPR pSelf, HB_BYTE bOper, HB_COMP_DECL )
{
/* NOTE: an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
#ifdef HB_USE_OBJMSG_REF
if( HB_SUPPORT_EXTOPT )
{
/* push reference to current value */
hb_compExprPushSendPop( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
/* Duplicate the reference and unref the original one -
* it will be the result of whole expression
*/
HB_GEN_FUNC1( PCode1, HB_P_DUPLUNREF );
/* increment/decrement the value */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( ( bOper == HB_P_INC ) ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft, NULL,
HB_TRUE, bOper, HB_COMP_PARAM );
}
return;
}
else if( HB_SUPPORT_HARBOUR )
{
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_MACRO &&
pSelf->value.asOperator.pLeft->value.asMacro.SubType & HB_ET_MACRO_VAR )
{
HB_USHORT usType = pSelf->value.asOperator.pLeft->value.asMacro.SubType;
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->value.asMacro.SubType = usType;
/* Duplicate the reference and unref the original one -
* it will be the result of whole expression
*/
HB_GEN_FUNC1( PCode1, HB_P_DUPLUNREF );
/* increase/decrease operation */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
return;
}
#ifdef HB_USE_ARRAYAT_REF
/* NOTE: code for arrays is differ to correctly handle a[ i++ ]++ */
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_ARRAYAT )
{
/* push reference to current value */
/* Note: change type to array reference */
pSelf->value.asOperator.pLeft->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = HB_FALSE;
/* Duplicate the reference and unref the original one -
* it will be the result of whole expression
*/
HB_GEN_FUNC1( PCode1, HB_P_DUPLUNREF );
/* increase/decrease operation */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
return;
}
#endif
#if ! defined( HB_MACRO_SUPPORT )
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_VARIABLE )
{
int iVar, iScope;
hb_compVariableFind( HB_COMP_PARAM, pSelf->value.asOperator.pLeft->value.asSymbol.name, &iVar, &iScope );
if( iScope != HB_VS_LOCAL_FIELD && iScope != HB_VS_GLOBAL_FIELD &&
iScope != HB_VS_UNDECLARED )
{
if( iScope == HB_VS_LOCAL_VAR )
{
/* Push current value */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC3( PCode3, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_LOCALINC : HB_P_LOCALDEC ),
HB_LOBYTE( iVar ), HB_HIBYTE( iVar ) );
}
else
{
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DUPLUNREF );
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARIABLE;
}
return;
}
}
#endif
}
/* Push current value */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* Duplicate value */
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
/* Increment */
HB_GEN_FUNC1( PCode1, bOper );
/* pop new value from the stack */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_POP_PCODE );
}
/* Generates the pcodes for increment/decrement operations
* used standalone as a statement
*/
static void hb_compExprUsePreOp( PHB_EXPR pSelf, HB_BYTE bOper, HB_COMP_DECL )
{
/* NOTE: an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
#ifdef HB_USE_OBJMSG_REF
if( HB_SUPPORT_EXTOPT )
{
/* push reference to current value */
hb_compExprPushSendPop( pSelf->value.asOperator.pLeft, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
/* increment/decrement the value */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( ( bOper == HB_P_INC ) ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft, NULL,
HB_FALSE, bOper, HB_COMP_PARAM );
/* pop the value from the stack */
HB_GEN_FUNC1( PCode1, HB_P_POP );
}
return;
}
else if( HB_SUPPORT_HARBOUR )
{
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_MACRO &&
pSelf->value.asOperator.pLeft->value.asMacro.SubType & HB_ET_MACRO_VAR )
{
HB_USHORT usType = pSelf->value.asOperator.pLeft->value.asMacro.SubType;
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->value.asMacro.SubType |= HB_ET_MACRO_REFER;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->value.asMacro.SubType = usType;
/* increase/decrease operation */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
return;
}
#ifdef HB_USE_ARRAYAT_REF
/* NOTE: code for arrays is differ to correctly handle a[ i++ ]++ */
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_ARRAYAT )
{
/* push reference to current value */
/* Note: change type to array reference */
pSelf->value.asOperator.pLeft->value.asList.reference = HB_TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = HB_FALSE;
/* increase/decrease operation */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
return;
}
#endif
#if ! defined( HB_MACRO_SUPPORT )
else if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_VARIABLE )
{
int iVar, iScope;
hb_compVariableFind( HB_COMP_PARAM, pSelf->value.asOperator.pLeft->value.asSymbol.name, &iVar, &iScope );
if( iScope != HB_VS_LOCAL_FIELD && iScope != HB_VS_GLOBAL_FIELD &&
iScope != HB_VS_UNDECLARED )
{
if( iScope == HB_VS_LOCAL_VAR )
{
HB_GEN_FUNC3( PCode3, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_LOCALINC : HB_P_LOCALDEC ),
HB_LOBYTE( iVar ), HB_HIBYTE( iVar ) );
}
else
{
/* NOTE: direct type change */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
/* NOTE: restore original expression type */
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARIABLE;
}
return;
}
}
#endif
}
/* Push current value */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
/* Increment */
HB_GEN_FUNC1( PCode1, bOper );
/* pop new value from the stack */
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_POP_PCODE );
}
/* Generate pcode for aliased expression which contains macro operator on
* the left or right side of the alias operator
* expression->&macro or &macro->expression or &macro->&macro
*/
static void hb_compExprUseAliasMacro( PHB_EXPR pAliasedVar, HB_BYTE bAction, HB_COMP_DECL )
{
PHB_EXPR pAlias, pVar;
/* Alias->Var
*/
pAlias = pAliasedVar->value.asAlias.pAlias;
pVar = pAliasedVar->value.asAlias.pVar;
if( pAlias->ExprType == HB_ET_ALIAS )
{
/* database alias */
/* Push alias identifier as string so it can be joined with
* variable at runtime
* NOTE:
* ALIAS->&var is the same as &( "ALIAS->" + var )
*
*/
HB_GEN_FUNC2( PushString, pAlias->value.asSymbol.name, strlen( pAlias->value.asSymbol.name ) + 1 );
HB_EXPR_USE( pVar, HB_EA_PUSH_PCODE );
}
else if( pVar->ExprType == HB_ET_VARIABLE )
{
/* NOTE:
* &macro->var is the same as: &( macro + "->var" )
*/
HB_EXPR_USE( pAlias, HB_EA_PUSH_PCODE );
HB_GEN_FUNC2( PushString, pVar->value.asSymbol.name, strlen( pVar->value.asSymbol.name ) + 1 );
}
else
{
HB_EXPR_USE( pAlias, HB_EA_PUSH_PCODE );
HB_EXPR_USE( pVar, HB_EA_PUSH_PCODE );
}
if( bAction == HB_EA_PUSH_PCODE )
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSHALIASED );
else
HB_GEN_FUNC1( PCode1, HB_P_MACROPOPALIASED );
/* Always add byte to pcode indicating requested macro compiler flag. */
HB_GEN_FUNC1( PCode1, ( HB_BYTE ) HB_MACRO_GENFLAGS );
}
/* Reduces the list of expressions
*
* pExpr is the first expression on the list
*/
static PHB_EXPR hb_compExprReduceList( PHB_EXPR pList, HB_COMP_DECL )
{
PHB_EXPR * pExpr;
/* NOTE: During optimization an expression on the list can be
* replaced by the new one
*/
pExpr = &pList->value.asList.pExprList;
while( *pExpr )
{
PHB_EXPR pNext = ( *pExpr )->pNext; /* store next expression in case the current will be reduced */
*pExpr = HB_EXPR_USE( *pExpr, HB_EA_REDUCE );
( *pExpr )->pNext = pNext; /* restore the link to next expression */
pExpr = &( *pExpr )->pNext;
}
return pList;
}
/* reduce ( "alias" )-> to ALIAS->
*/
static PHB_EXPR hb_compExprReduceAliasString( PHB_EXPR pExpr, PHB_EXPR pAlias, HB_COMP_DECL )
{
const char * szAlias = pAlias->value.asString.string;
if( HB_ISFIRSTIDCHAR( *szAlias ) )
{
HB_SIZE nLen = pAlias->nLength;
if( nLen <= HB_SYMBOL_NAME_LEN )
{
HB_BOOL fLower = HB_FALSE;
while( nLen )
{
char c = szAlias[ nLen - 1 ];
if( ! HB_ISNEXTIDCHAR( c ) )
break;
if( HB_ISLOWER( c ) )
fLower = HB_TRUE;
--nLen;
}
if( nLen == 0 )
{
#if defined( HB_MACRO_SUPPORT )
if( fLower )
szAlias = hb_macroIdentNew( HB_COMP_PARAM, hb_strupr( hb_strdup( szAlias ) ) );
else if( pAlias->value.asString.dealloc )
szAlias = hb_macroIdentNew( HB_COMP_PARAM, hb_strdup( szAlias ) );
#else
if( fLower )
szAlias = hb_compIdentifierNew( HB_COMP_PARAM, hb_strupr( hb_strdup( szAlias ) ), HB_IDENT_FREE );
else if( pAlias->value.asString.dealloc )
szAlias = hb_compIdentifierNew( HB_COMP_PARAM, szAlias, HB_IDENT_COPY );
#endif
HB_COMP_EXPR_FREE( pExpr );
pExpr = hb_compExprNewAlias( szAlias, HB_COMP_PARAM );
}
}
}
return pExpr;
}
static HB_BOOL hb_compExprIsMemvarAlias( const char * szAlias )
{
int iLen = ( int ) strlen( szAlias );
/* @M-> @MEMVAR-> or @MEMVA-> or @MEMV-> */
return ( iLen == 1 || ( iLen >= 4 && iLen <= 6 ) ) &&
memcmp( szAlias, "MEMVAR", iLen ) == 0;
}
Reference in New Issue View Git Blame Copy Permalink