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harbour-core/harbour/include/hbexprb.c
Przemyslaw Czerpak 26a11bd859 2009-03-21 16:07 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/bin/hb-func.sh
    ! restored default optimization flag (-O3) in hb* scripts

  * harbour/harbour.spec
    ! fixed recent modification

  * harbour/contrib/rddads/ads1.c
  * harbour/contrib/rddads/adsfunc.c
  * harbour/contrib/hbmisc/strfmt.c
  * harbour/contrib/hbcrypt/sha1.c
    ! fixed wrongly used C reference operator

  * harbour/contrib/hbwin/win_prn2.c
  * harbour/contrib/hbwin/wapi_commctrl.c
  * harbour/source/vm/maindllp.c
    ! fixes for unicode builds

  * harbour/include/std.ch
    + added SET TIME FORMAT [TO] <f>

  * harbour/include/set.ch
  * harbour/include/hbset.h
  * harbour/source/vm/set.c
    + added _SET_TIMEFORMAT
      The folowing modifiers are supported:
         hh - hours
         mm - minutes
         ss - seconds
         fff - fraction part of seconds
         p - 1-st letter from PM / AM signature. When used time is shown
             in 12 hour format otherwise 24 hour format is used
      ex: Set( __SET_TIMEFORMAT, "hh:mm pm" )
      default _SET_TIMEFORMAT value is "hh:mm:ss:fff"
    + added C function: char * hb_setGetTimeFormat( void );

  * harbour/include/hbpp.h
  * harbour/source/pp/ppcore.c
    + added support for timestamp constant values in the form:
         t"YYYY-MM-DD HH:MM:SS.fff"
      The exact accepted timestamp pattern is is:
         YYYY-MM-DD [H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
      i.e.:
         tValue := t"2009-03-21 5:31:45.437 PM"
      or:
         YYYY-MM-DDT[H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
      with literal "T" as date and time part delimiters (XML timestamp
      format), i.e.:
         tValue := t"2009-03-21T17:31:45.437"
      The folowing characters can be used as date delimiters: "-", "/", "."
      if PM or AM is used HH is in range < 1 : 12 > otherwise
      in range < 0 : 23 >

  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
    + added support for t"YYYY-MM-DD HH:MM:SS.fff" time stamp constant
      to compiler
    + added support for VFP datetime constant values:
         { ^ [ YYYY-MM-DD [,] ] [ HH[:MM[:SS][.FFF]] [AM|PM] ] }
      The following characters can be used as date delimiters: "-", "/".
      Dot "." as date delimiter is not supported.
      There is no limit on number of characters in YYYY, MM, DD, HH, MM,
      SS, FFF parts. Important is only their value. This is the format
      in semi PP notation:
         { ^ <YEAR> <sep:/-> <MONTH> <sep:/-> <DAY> [[<sep2:,>]
           [ <HOUR> [ : <MIN> [ : <SEC> [ . <FRAQ> ] ] ] [AM|PP] ] }
      In practice it allows to also parse xHarbour datetime constant
      values with compatible conditions though xHarbour support onlu "/"
      as date delimiter.
      NOTE: there is one important difference to VFP and xHarbour in
      decoding above format. In VFP and xHarbour when date part is
      missing then it's set by default to: 1899-12-30 so this code:
         { ^ 12:00 }
      gived the same results as:
         { ^ 1899/12/30 12:00 }
      Harbour does not set any default date value when timestamp
      constant value contains only time part.
      If you want we can change it for strict VFP compatiblity.
      Now this extension is enabled by default for testing. In the future
      it will be probably covered by HB_COMPAT_FOXPRO macro.

  * harbour/source/macro/macro.yyc
  * harbour/source/macro/macro.y
  * harbour/source/macro/macro.yyh
  * harbour/source/macro/macrolex.c
    + added support for t"YYYY-MM-DD HH:MM:SS.fff" time stamp constant
      to macro compiler

  * harbour/include/hbmacro.h
  * harbour/source/vm/macro.c
    + added new function:
      void hb_macroGenPushTimeStamp( LONG lDate, LONG lTime, HB_COMP_DECL );

  * harbour/include/hberrors.h
  * harbour/source/compiler/hbgenerr.c
    + added new compile time error: "Invalid timestamp constant '%s'"

  * harbour/source/compiler/cmdcheck.c
    * use Harbour API timestamp functions instead of calling system
      functions

  * harbour/include/hbpcode.h
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/compiler/hbopt.c
    + added new PCODE HB_P_PUSHTIMESTAMP (replaced one unused PCODE value)
      to store timestamp constant values in the PCODE

  * harbour/include/hbcomp.h
  * harbour/source/compiler/hbmain.c
    + added new function:
      void hb_compGenPushTimeStamp( LONG lDate, LONG lTime, HB_COMP_DECL );

  * harbour/include/hbexprop.h
  * harbour/source/common/expropt1.c
    + added new C functions:
      HB_EXPR_PTR hb_compExprNewTimeStamp( LONG, LONG, HB_COMP_DECL );

  * harbour/include/hbexprb.c
  * harbour/include/hbcompdf.h
  * harbour/source/common/expropt2.c
    + added timestamp expressions support
    + added compile time optimization for timestamp expressions
    * updated function optimization for timestamp expressions

  * harbour/include/hbdate.h
  * harbour/source/common/hbdate.c
    * changed hb_dateMilliSeconds() to return UTC julian timestamp in
      milliseconds
    * changed existing seconds, time and timestamp functions to operate
      on common OS specific functions to eliminate possible problems
      with different OS time counters
    + added new functions to operates on time and timestamp values.
      See source code for details.

  + harbour/source/rtl/cputime.c
    * moved double hb_secondsCPU( int n ) function to separate file

  * harbour/source/rtl/seconds.c
    - removed old version of date/seconds functions

  * harbour/source/vm/hashes.c
  * harbour/source/vm/arrays.c
    + added support for timestamp values as hash item indexes

  * harbour/source/vm/hashfunc.c
    + added support for find timestamp values in hash and array items
      by simple date value in AScan(), hb_HScan(), hb_AScan() and hb_RAScan()
      functions when exact comparison is not used.

  * harbour/source/vm/asort.c
    + added support for sorting timestamp values

  * harbour/source/vm/classes.c
    + added support for timestamp scallar classes
    + added support for timestamp typed instance variables

  * harbour/source/vm/memvars.c
    + added support for timestamp values in .mem files

  * harbour/source/vm/estack.c
    + show timestamp values in stack dump

  * harbour/include/hbapi.h
  * harbour/source/vm/arrays.c
    + added new C functions:
      double hb_arrayGetTD( PHB_ITEM pArray, ULONG ulIndex );
      BOOL hb_arraySetTD( PHB_ITEM pArray, ULONG ulIndex, double dTimeStamp )
      BOOL hb_arrayGetTDT( PHB_ITEM pArray, ULONG ulIndex,
                           LONG * plJulian, LONG * plMilliSec );
      BOOL hb_arraySetTDT( PHB_ITEM pArray, ULONG ulIndex,
                           LONG lJulian, LONG lMilliSec );

  * harbour/include/hbapi.h
  * harbour/source/vm/extend.c
    + accept timestamp items in date functions - use only date part of
      timestamp value
    + added new C functions:
      double hb_partd( int iParam, ... );
      BOOL hb_partdt( LONG * plJulian, LONG * plMilliSec , int iParam, ... );
      void hb_rettd( double dTimeStamp );
      void hb_rettdt( LONG lJulian, LONG lMilliSec );
      int hb_stortd( double dTimeStamp, int iParam, ... );
      int hb_stortdt( LONG lJulian, LONG lMilliSec, int iParam, ... );

  * harbour/include/hbapiitm.h
  * harbour/source/vm/itemapi.c
    + accept timestamp items in date functions - use only date part of
      timestamp value
    + added new C functions:
      char * hb_itemGetTS( PHB_ITEM pItem, char * szDateTime );
      PHB_ITEM hb_itemPutTS( PHB_ITEM pItem, const char * szDateTime );
      double hb_itemGetTD( PHB_ITEM pItem );
      PHB_ITEM hb_itemPutTD( PHB_ITEM pItem, double dTimeStamp )
      BOOL hb_itemGetTDT( PHB_ITEM pItem, LONG * plJulian, LONG * plMilliSec );
      PHB_ITEM hb_itemPutTDT( PHB_ITEM pItem, LONG lJulian, LONG lMilliSec );
    + support for timestamp items in hb_itemString(), hb_itemPadConv() and
      hb_itemTypeStr() functions

  * harbour/include/hbvm.h
  * harbour/include/hbxvm.h
  * harbour/include/hbapi.h
  * harbour/source/vm/hvm.c
    + added HB_IT_TIMESTAMP items
    * modified HB_IT_DATE internal item structure to use common structure
      with HB_IT_TIMESTAMP - it  simplifies HVM code and eliminates additional
      RT conditions.
    + added HB_IS_TIMESTAMP() and ISTIMESTAMP() macros
    + added HB_IS_DATETIME() and ISDATETIME() macros - they return true
      if item/parameter is DATE or TIMESTAMP type.
    + added void hb_vmPushTimeStamp( long lJulian, long lMilliSec );
      and xhb_vmPushTimeStamp()
    + added support for timestamp values in relational operators:
         <, <=, >, >=, =, ==
      When two timestamp values are compared then VM compares date and
      time parts in both values.
      When date and timestamp values are used in <, <=, >, >=, = operations
      then VM compares only date part in both values.
      When date and timestamp values are used in == operation then VM
      compares date part in both values and then check if time part
      of timestamp value is 0.
    + added support for timestamp values in + and - math operations.
      The following rules are used in timestamp arithmetic:
         <t> + <t> => <t>
         <t> - <t> => <n>
         <t> + <n> => <t>
         <n> + <t> => <t>
         <t> - <n> => <t>
         <d> + <t> => <t>
         <t> + <d> => <t>
         <d> - <t> => <n>
         <t> - <d> => <n>
      When number is result or argument of timestamp operation then the
      its integer part is a number of day and fractional part is the time.

  * harbour/source/rtl/dateshb.c
    + added new .prg functions to mange date and timestamp values:
      HB_DATETIME() -> <tTimeStamp>
      HB_CTOD( <cDate> [, <cDateFormat> ] ) -> <dDate>
      HB_DTOC( <dDate> [, <cDateFormat> ] ) -> <cDate>
      HB_NTOT( <nValue> ) -> <tTimeStamp>
      HB_TTON( <tTimeStamp> ) -> <nValue>
      HB_TTOC( <tTimeStamp>, [ <cDateFormat> ] [, <cTimeFormat> ] ) ->
                                                            <cTimeStamp>
      HB_CTOT( <cTimeStamp>, [ <cDateFormat> ] [, <cTimeFormat> ] ) ->
                                                            <tTimeStamp>
      HB_TTOS( <tTimeStamp> ) -> <cYYYYMMDDHHMMSSFFF>
      HB_STOT( <cDateTime> ) -> <tTimeStamp>
         <cDateTime> should be in one of the above form:
            - "YYYYMMDDHHMMSSFFF"
            - "YYYYMMDDHHMMSSFF"
            - "YYYYMMDDHHMMSSF"
            - "YYYYMMDDHHMMSS"
            - "YYYYMMDDHHMM"
            - "YYYYMMDDHH"
            - "YYYYMMDD"
            - "HHMMSSFFF"
            - "HHMMSSF"
            - "HHMMSS"
            - "HHMM"
            - "HH"
         Important is number of digits.
      HB_TSTOSTR( <tTimeStamp> ) -> <cTimeStamp> // YYYY-MM-DD HH:MM:SS.fff
      HB_STRTOTS( <cTimeStamp> ) -> <tTimeStamp>
         <cTimeStamp> should be in one of the above form:
            YYYY-MM-DD [H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
            YYYY-MM-DDT[H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
         The folowing characters can be used as date delimiters: "-", "/", "."
         T - is literal "T" - it's for XML timestamp format
         if PM or AM is used HH is in range < 1 : 12 > otherwise
         in range < 0 : 23 >
      HB_HOUR( <tTimeStamp> ) -> <nHour>
      HB_MINUTE( <tTimeStamp> ) -> <nMinute>
      HB_SEC( <tTimeStamp> ) -> <nSeconds>   // with milliseconds

  * harbour/source/rtl/datec.c
    + accept timestamp parameters in CMONTH() and CDOW() functions

  * harbour/source/rtl/empty.c
    + added support for timestamp items

  * harbour/source/rtl/itemseri.c
    + added support for timestamp items serialization

  * harbour/source/rtl/minmax.c
    + added support for timestamp values to MIN() and MAX() functions.
      when only one of given parameters is timestamp value and other
      is date value and date parts are equal then always date item
      is returned as both MIN() or MAX() value.

  * harbour/source/rtl/dates.c
    + added new C functions: hb_timeFormat(), hb_timeUnformat(),
      hb_timeStampFormat(), hb_timeStampUnformat()

  * harbour/source/rtl/valtype.c
    + added .prg functions: HB_ISDATETIME(), HB_ISTIMESTAMP()

  * harbour/source/rtl/transfrm.c
    + added support for timestamp items formatting.
    + added new function modifier @T.
      When @T is used without @D then only time part of timestamp value
      is formatted and return.
      When @D is used without @T then only date part of timestamp value
      is formatted and return.

  * harbour/source/rtl/tbrowse.prg
    + display timestamp values

  * harbour/source/rtl/philes.c
    + accept timestamp value as second parameter of HB_FSETDATETIME()
      function
    + store file data and time in second parameter of HB_FGETDATETIME()
      as timestamp value.
    Old parameters (2-dDate, 3-cTime) are still supported but please think
    about removing them - they are redundant.

  * harbour/source/rtl/filesys.c
    * updated function names


  * harbour/source/rdd/dbf1.c
    + added native support for time and timestamp fields

  * harbour/include/hbrddcdx.h
  * harbour/include/hbrddnsx.h
  * harbour/source/rdd/dbfntx/dbfntx1.c
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbfnsx/dbfnsx1.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
    + added support for indexing timestamp fields
    + added support for using DATE values with timestamp fields
      which replicate HVM behavior.
      SEEK and SEEKLAST with date value when active index is on
      timestamp positions to 1-st or last record where date part
      of indexed timesamp value is equal.
      Settings scopes to date values when active index is on timestamp
      value reduce the visible record range to these ones which have
      date part of timestamp value in the range of dates values used
      for scopes. It possible to mix date and timestamp values in scope
      and set one scope to date value and the second to timesamp.

  * harbour/source/rdd/sdf1.c
  * harbour/source/rdd/delim1.c
    + added support for exporting timestamp fields

  * harbour/source/rdd/dbsql.c
    ! fixed typo in logical value export
    + export timestamp fields.
      Please update the format to given SQL syntax.


  * harbour/contrib/hbct/files.c
    + changed SETFDATI() to optionally accept timestamp parameter
      instead of two parameters dDate and cTime

  * harbour/contrib/hbct/misc1.c
    + added timestamp support to XTOC() function

  * harbour/contrib/hbct/misc2.c
    + added timestamp support to COMPLEMENT() function

  * harbour/contrib/hbct/dattime2.c
    + accept timestamp values in ADDMONTH(), DOY(), ISLEAP(), QUARTER()
      LASTDAYOM(), WEEK() functions

  * harbour/contrib/hbmzip/hbmzip.c
    + updated HB_ZipFileCreate( hZip, cZipName, tDateTime, cTime, ... )
      functions to optionaly accept timestamp value in 3-rd parameter
      instead od dDate, and cTime in 3-rd and 4-th parameters.
    + updated HB_UnzipFileInfo( hUnzip, @cZipName, @tDateTime, @cTime, ... )
      to return timestamp value in 3-rd parameter instead of date value.
      TODO: Please think about removing 4-th parameter from:
               HB_ZipFileCreate( hZip, cZipName, tDateTime, cTime, ... )
               HB_UnzipFileInfo( hUnzip, @cZipName, @tDateTime, @cTime, ... )
            Now it's redundant.
  * harbour/contrib/hbmzip/readme.txt
    * updated parameters description for above functions

  * harbour/contrib/hbnf/descendn.c
    + added timestamp support to FT_DESCEND() function

  * harbour/contrib/hbclipsm/date.c
    + accept timestamp values in DATEASAGE(), DATEASARRAY() and DATEISLEAP()
      functions

  * harbour/contrib/hbmisc/dates2.c
    + accept timestamp values in ISLEAPYEAR(), DAYSINMONTH(), EOM(), BOM(),
      WOM(), WOY(), EOY() and BOY() functions


   The following contrib files should be updated but I'm leaving it to
   other developers who want to keep this code alive:
         contrib/hbtip/utils.c
         contrib/hbvpdf/hbvpdf.prg
         contrib/hbvpdf/hbvpdft.prg
         contrib/hbwin/win_dll.c
            some minor cleanups if necessary and authors will find
            timestamp values usable

         contrib/hbole/ole2.c
         contrib/hbwin/win_ole.c
            add support for timestamp values in OLE

         contrib/rddado/adordd.prg
         contrib/rddads/ads1.c
         contrib/rddads/adsx.c
         contrib/rddsql/...
            add support for timestamp values in RDDs

   Warning: this implementation is not xHarbour compatible. There are many
   important differences. Mostly on C level and used API. Please be careful
   in porting xHarbour source code to Harbour.
2009-03-21 15:04:43 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* Compiler Expression Optimizer
*
* Copyright 1999 Ryszard Glab
* www - http://www.harbour-project.org
*
* 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 software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* 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 <math.h>
#include "hbcomp.h"
#include "hbmacro.ch"
#if !defined( HB_HASH_USES_ARRAY_INDEXES )
# define HB_HASH_USES_ARRAY_INDEXES
#endif
#define HB_USE_ARRAYAT_REF
/* Temporary disabled optimization with references to object variables
until we will not have extended reference items in our HVM [druzus] */
/* #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_compExprUseVarRef );
static HB_EXPR_FUNC( hb_compExprUseRef );
static HB_EXPR_FUNC( hb_compExprUseFunRef );
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_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( HB_EXPR_PTR, HB_COMP_DECL );
#else
static void hb_compExprCodeblockPush( HB_EXPR_PTR, BOOL, HB_COMP_DECL );
static void hb_compExprCodeblockEarly( HB_EXPR_PTR, HB_COMP_DECL );
static void hb_compExprCodeblockExtPush( HB_EXPR_PTR pSelf, HB_COMP_DECL );
#endif
static void hb_compExprPushSendPop( HB_EXPR_PTR pSelf, HB_COMP_DECL );
static void hb_compExprPushSendPush( HB_EXPR_PTR pSelf, HB_COMP_DECL );
static void hb_compExprPushOperEq( HB_EXPR_PTR pSelf, BYTE bOpEq, HB_COMP_DECL );
static void hb_compExprUseOperEq( HB_EXPR_PTR pSelf, BYTE bOpEq, HB_COMP_DECL );
static void hb_compExprPushPreOp( HB_EXPR_PTR pSelf, BYTE bOper, HB_COMP_DECL );
static void hb_compExprPushPostOp( HB_EXPR_PTR pSelf, BYTE bOper, HB_COMP_DECL );
static void hb_compExprUsePreOp( HB_EXPR_PTR pSelf, BYTE bOper, HB_COMP_DECL );
static void hb_compExprUseAliasMacro( HB_EXPR_PTR pAliasedVar, BYTE bAction, HB_COMP_DECL );
static HB_EXPR_PTR hb_compExprReduceList( HB_EXPR_PTR pExpr, HB_COMP_DECL );
const HB_EXPR_FUNC_PTR 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_compExprUseSend,
hb_compExprUseFunName,
hb_compExprUseAlias,
hb_compExprUseRTVariable,
hb_compExprUseVariable,
hb_compExprUsePostInc, /* post-operators -> lowest precedence */
hb_compExprUsePostDec,
hb_compExprUseAssign, /* assigments */
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:
{
HB_GEN_FUNC2( PushString, pSelf->value.asString.string,
pSelf->ulLength + 1 );
#if ! defined( HB_MACRO_SUPPORT )
if( HB_SUPPORT_MACROTEXT &&
hb_compIsValidMacroText( HB_COMP_PARAM,
pSelf->value.asString.string,
pSelf->ulLength ) )
#else
if( hb_macroIsValidMacroText( pSelf->value.asString.string,
pSelf->ulLength ) )
#endif
{
HB_GEN_FUNC1( PCode1, HB_P_MACROTEXT );
}
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:
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_EXPR_PCODE1( hb_compExprCodeblockPush, pSelf );
#else
if( pSelf->value.asCodeblock.flags & HB_BLOCK_EXT )
hb_compExprCodeblockExtPush( pSelf, HB_COMP_PARAM );
else if( ( pSelf->value.asCodeblock.flags & HB_BLOCK_MACRO ) &&
!( pSelf->value.asCodeblock.flags &
( HB_BLOCK_LATEEVAL | HB_BLOCK_VPARAMS ) ) )
/* early evaluation of a macro */
hb_compExprCodeblockEarly( pSelf, HB_COMP_PARAM );
else
hb_compExprCodeblockPush( pSelf, TRUE, HB_COMP_PARAM );
#endif
break;
}
case HB_EA_POP_PCODE:
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
break;
case HB_EA_DELETE:
{
HB_EXPR_PTR pExp = pSelf->value.asCodeblock.pExprList;
HB_EXPR_PTR pNext;
hb_compExprCBVarDel( pSelf->value.asCodeblock.pLocals );
if( pSelf->value.asCodeblock.string )
hb_xfree( pSelf->value.asCodeblock.string );
/* Delete all expressions of the block. */
while( pExp )
{
pNext = pExp->pNext;
HB_COMP_EXPR_DELETE( pExp );
pExp = 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:
{
USHORT usItems = ( USHORT ) hb_compExprParamListCheck( HB_COMP_PARAM, pSelf );
if( usItems == 0 )
{
HB_GEN_FUNC3( PCode3, HB_P_ARRAYGEN, 0, 0 );
}
else
{
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 );
/* restore original expression type */
pSelf->ExprType = HB_ET_ARRAY;
if( fArgsList )
{
HB_GEN_FUNC3( PCode3, HB_P_MACROARRAYGEN,
HB_LOBYTE( usItems ), HB_HIBYTE( usItems ) );
}
else
{
HB_GEN_FUNC3( PCode3, HB_P_ARRAYGEN,
HB_LOBYTE( usItems ), HB_HIBYTE( usItems ) );
}
}
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
{
HB_EXPR_PTR 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:
{
HB_EXPR_PTR pElem = pSelf->value.asList.pExprList;
/* Delete all elements of the array
*/
HB_EXPR_PTR pNext;
while( pElem )
{
pNext = pElem->pNext;
HB_COMP_EXPR_DELETE( 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:
{
USHORT usItems = ( USHORT ) ( pSelf->ulLength >> 1 );
/* Note: direct type change */
pSelf->ExprType = HB_ET_ARGLIST;
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
/* 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:
{
HB_EXPR_PTR 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:
{
HB_EXPR_PTR pElem = pSelf->value.asList.pExprList;
/* Delete all elements of the array
*/
HB_EXPR_PTR pNext;
while( pElem )
{
pNext = pElem->pNext;
HB_COMP_EXPR_DELETE( 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 );
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 );
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 );
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_PTR pExp = pSelf->value.asReference;
if( pExp->ExprType == HB_ET_MACRO )
{
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 = TRUE;
HB_EXPR_USE( pExp, HB_EA_PUSH_PCODE );
break;
}
else if( pExp->ExprType == HB_ET_SEND )
{
/* HB_EXPR_PTR 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_ALIASVAR )
{
const char *szAlias = pExp->value.asAlias.pAlias->value.asSymbol;
int iLen = strlen( szAlias );
if( ( iLen == 1 || ( iLen >= 4 && iLen <= 6 ) ) &&
memcmp( szAlias, "MEMVAR", iLen ) == 0 &&
pExp->value.asAlias.pVar->ExprType == HB_ET_VARIABLE )
{ /* @M-> @MEMVAR-> or @MEMVA-> or @MEMV-> */
HB_GEN_FUNC1( PushMemvarRef, pExp->value.asAlias.pVar->value.asSymbol );
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_DELETE( 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:
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
*/
LONG lPosFalse, lPosEnd;
HB_EXPR_PTR pExpr = pSelf->value.asList.pExprList;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
lPosFalse = HB_GEN_FUNC1( JumpFalse, 0 );
pExpr =pExpr->pNext;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
lPosEnd = HB_GEN_FUNC1( Jump, 0 );
pExpr =pExpr->pNext;
HB_GEN_FUNC1( JumpHere, lPosFalse );
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( JumpHere, lPosEnd );
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
{
#ifdef HB_C52_STRICT
HB_EXPR_USE( pSelf, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_POP ); /* remove a value if used in statement */
#else
ULONG ulPosFalse, ulPosEnd;
HB_EXPR_PTR pExpr = pSelf->value.asList.pExprList;
HB_EXPR_USE( pExpr, HB_EA_PUSH_PCODE );
ulPosFalse = 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->lPCodePos == ulPosFalse + 3 )
{
HB_PCODE_DATA->pCode[ ulPosFalse - 1 ] = HB_P_JUMPTRUEFAR;
ulPosEnd = ulPosFalse;
}
#else
if( HB_COMP_PARAM->functions.pLast->lPCodePos == ulPosFalse + 3 )
{
HB_COMP_PARAM->functions.pLast->pCode[ ulPosFalse - 1 ] = HB_P_JUMPTRUEFAR;
ulPosEnd = ulPosFalse;
}
#endif
else
{
ulPosEnd = HB_GEN_FUNC1( Jump, 0 );
HB_GEN_FUNC1( JumpHere, ulPosFalse );
}
/* 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, ulPosEnd );
#endif
break;
}
case HB_EA_DELETE:
if( pSelf->value.asList.pExprList )
{
HB_EXPR_PTR pTmp, pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
pTmp = pExpr->pNext; /* store next expression */
HB_COMP_EXPR_DELETE( pExpr );
pExpr =pTmp;
}
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_HARBOUR )
pSelf = hb_compExprListStrip( pSelf, HB_COMP_PARAM );
if( HB_SUPPORT_XBASE && pSelf->ExprType == HB_ET_LIST )
{
if( hb_compExprListLen( pSelf ) == 1 )
{
HB_EXPR_PTR pExpr = pSelf->value.asList.pExprList;
if( pExpr->ExprType == HB_ET_MACRO &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_SYMBOL &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_REFER &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_ALIASED )
{
pExpr->value.asMacro.SubType |= HB_ET_MACRO_PARE;
}
}
}
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:
{
HB_EXPR_PTR 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_SYMBOL &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_REFER &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_ALIASED )
{
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:
{
HB_EXPR_PTR pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
if( HB_SUPPORT_XBASE )
{
if( pExpr->ExprType == HB_ET_MACRO &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_SYMBOL &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_REFER &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_ALIASED )
{
pExpr->value.asMacro.SubType |= HB_ET_MACRO_PARE;
}
}
HB_EXPR_USE( pExpr, HB_EA_PUSH_POP );
pExpr = pExpr->pNext;
}
}
break;
case HB_EA_DELETE:
if( pSelf->value.asList.pExprList )
{
HB_EXPR_PTR pTmp, pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
pTmp = pExpr->pNext; /* store next expression */
HB_COMP_EXPR_DELETE( pExpr );
pExpr =pTmp;
}
pSelf->value.asList.pExprList = NULL;
}
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
{
HB_EXPR_PTR 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 )
{
HB_EXPR_PTR pTmp, pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
pTmp = pExpr->pNext; /* store next expression */
HB_COMP_EXPR_DELETE( pExpr );
pExpr =pTmp;
}
pSelf->value.asList.pExprList = NULL;
}
break;
}
return pSelf;
}
/* NOTE: In PUSH operation it leaves all expressions on the eval stack,
* the expresions 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:
{
HB_EXPR_PTR pExpr = pSelf->value.asList.pExprList;
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 ) )
{
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 )
{
HB_EXPR_PTR pTmp, pExpr = pSelf->value.asList.pExprList;
while( pExpr )
{
pTmp = pExpr->pNext; /* store next expression */
HB_COMP_EXPR_DELETE( pExpr );
pExpr =pTmp;
}
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:
{
HB_EXPR_PTR pIdx;
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 )
{
HB_EXPR_PTR pExpr = pSelf->value.asList.pExprList; /* the expression that holds an array */
LONG lIndex;
if( pIdx->value.asNum.NumType == HB_ET_LONG )
lIndex = ( LONG ) pIdx->value.asNum.val.l;
else
lIndex = ( LONG ) pIdx->value.asNum.val.d;
if( pExpr->ExprType == HB_ET_ARRAY ) /* is it a literal array */
{
ULONG ulSize = 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( lIndex, ulSize ) )
{
if( !HB_SUPPORT_ARRSTR )
hb_compErrorBound( HB_COMP_PARAM, pIdx );
}
else
{
pExpr = pExpr->value.asList.pExprList; /* the first element in the array */
while( --lIndex && pExpr )
pExpr = pExpr->pNext;
if( pExpr ) /* found ? */
{
/* extract a single expression from the array
*/
HB_EXPR_PTR pNew = HB_COMP_EXPR_NEW( HB_ET_NONE );
memcpy( pNew, pExpr, sizeof( HB_EXPR ) );
/* This will suppres 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 choosen one.
*/
pExpr->ExprType = HB_ET_NONE;
/* Here comes the magic */
HB_COMP_EXPR_DELETE( 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( lIndex, pExpr->ulLength ) )
{
#if defined( HB_COMPAT_X HB )
char * pszValue = ( char * ) hb_xgrab( 2 );
pszValue[ 0 ] = pExpr->value.asString.string[ lIndex - 1 ];
pszValue[ 1 ] = '\0';
HB_COMP_EXPR_DELETE( pSelf );
pSelf = hb_compExprNewString( pszValue, 1, TRUE, HB_COMP_PARAM );
#else
UCHAR ucValue = ( UCHAR ) pExpr->value.asString.string[ lIndex - 1 ];
HB_COMP_EXPR_DELETE( pSelf );
pSelf = hb_compExprNewLong( ucValue, HB_COMP_PARAM );
#endif
}
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:
{
BOOL fMacroIndex = FALSE;
if( pSelf->value.asList.pIndex->ExprType == HB_ET_MACRO )
{
if( HB_SUPPORT_XBASE )
{
if( pSelf->value.asMacro.SubType != HB_ET_MACRO_SYMBOL &&
pSelf->value.asMacro.SubType != HB_ET_MACRO_REFER &&
pSelf->value.asMacro.SubType != HB_ET_MACRO_ALIASED )
{
pSelf->value.asList.pIndex->value.asMacro.SubType |= HB_ET_MACRO_LIST;
fMacroIndex = TRUE;
}
}
}
else if( pSelf->value.asList.pIndex->ExprType == HB_ET_ARGLIST )
{
fMacroIndex = pSelf->value.asList.pIndex->value.asList.reference;
}
if( pSelf->value.asList.reference && HB_SUPPORT_ARRSTR )
{
if( pSelf->value.asList.pExprList->ExprType == HB_ET_VARIABLE )
{
pSelf->value.asList.pExprList->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
pSelf->value.asList.pExprList->ExprType = HB_ET_VARIABLE;
}
else if( pSelf->value.asList.pExprList->ExprType == HB_ET_SEND )
{
hb_compExprPushSendPop( pSelf->value.asList.pExprList, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
}
else if( pSelf->value.asList.pExprList->ExprType == HB_ET_ARRAYAT &&
!pSelf->value.asList.pExprList->value.asList.reference )
{
pSelf->value.asList.pExprList->value.asList.reference = TRUE;
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
pSelf->value.asList.pExprList->value.asList.reference = FALSE;
}
else if( pSelf->value.asList.pExprList->ExprType == HB_ET_MACRO &&
pSelf->value.asList.pExprList->value.asMacro.SubType == HB_ET_MACRO_VAR )
{
pSelf->value.asList.pExprList->value.asMacro.SubType = HB_ET_MACRO_REFER;
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
pSelf->value.asList.pExprList->value.asMacro.SubType = HB_ET_MACRO_VAR;
}
else
HB_EXPR_USE( pSelf->value.asList.pExprList, 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:
{
BOOL fMacroIndex = FALSE;
if( pSelf->value.asList.pIndex->ExprType == HB_ET_MACRO )
{
if( HB_SUPPORT_XBASE )
{
if( pSelf->value.asMacro.SubType != HB_ET_MACRO_SYMBOL &&
pSelf->value.asMacro.SubType != HB_ET_MACRO_REFER &&
pSelf->value.asMacro.SubType != HB_ET_MACRO_ALIASED )
{
pSelf->value.asList.pIndex->value.asMacro.SubType |= HB_ET_MACRO_LIST;
fMacroIndex = TRUE;
}
}
}
else if( pSelf->value.asList.pIndex->ExprType == HB_ET_ARGLIST )
{
fMacroIndex = pSelf->value.asList.pIndex->value.asList.reference;
}
/* to manage strings as bytes arrays, they must be pushed by reference */
/* arrays also are passed by reference */
if( HB_SUPPORT_ARRSTR )
{
if( pSelf->value.asList.pExprList->ExprType == HB_ET_VARIABLE )
{
pSelf->value.asList.pExprList->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
pSelf->value.asList.pExprList->ExprType = HB_ET_VARIABLE;
}
else if( pSelf->value.asList.pExprList->ExprType == HB_ET_SEND )
{
hb_compExprPushSendPop( pSelf->value.asList.pExprList, HB_COMP_PARAM );
HB_GEN_FUNC1( PCode1, HB_P_PUSHOVARREF );
}
else if( pSelf->value.asList.pExprList->ExprType == HB_ET_ARRAYAT &&
!pSelf->value.asList.pExprList->value.asList.reference )
{
pSelf->value.asList.pExprList->value.asList.reference = TRUE;
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
pSelf->value.asList.pExprList->value.asList.reference = FALSE;
}
else if( pSelf->value.asList.pExprList->ExprType == HB_ET_MACRO &&
pSelf->value.asList.pExprList->value.asMacro.SubType == HB_ET_MACRO_VAR )
{
pSelf->value.asList.pExprList->value.asMacro.SubType = HB_ET_MACRO_REFER;
HB_EXPR_USE( pSelf->value.asList.pExprList, HB_EA_PUSH_PCODE );
pSelf->value.asList.pExprList->value.asMacro.SubType = HB_ET_MACRO_VAR;
}
else
HB_EXPR_USE( pSelf->value.asList.pExprList, 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 );
/* no break */
case HB_EA_STATEMENT:
hb_compWarnMeaningless( HB_COMP_PARAM, pSelf );
break;
case HB_EA_DELETE:
HB_COMP_EXPR_DELETE( pSelf->value.asList.pExprList );
HB_COMP_EXPR_DELETE( 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
*/
HB_GEN_FUNC2( PushVar, pSelf->value.asMacro.szMacro, TRUE );
}
else
{
/* complex macro expression: prefix&var.suffix
* all components should be placed as a string that will
* be compiled after text susbstitution
*/
/* Check if macrotext variable does not refer to
* local, static or field.
*/
#if ! defined( HB_MACRO_SUPPORT )
hb_compIsValidMacroText( HB_COMP_PARAM,
pSelf->value.asMacro.szMacro,
strlen( pSelf->value.asMacro.szMacro ) );
#endif
HB_GEN_FUNC2( PushString, pSelf->value.asMacro.szMacro, strlen( pSelf->value.asMacro.szMacro ) + 1 );
}
}
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 )
{
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, ( BYTE ) HB_MACRO_GENFLAGS );
}
/* NOTE: pcode for alias context is generated in
* hb_compExprUseAliasVar()
*/
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
*/
HB_GEN_FUNC2( PushVar, pSelf->value.asMacro.szMacro, TRUE );
}
else
{
/* complex macro expression: prefix&var.suffix
* all components should be placed as a string that will
* be compiled after text susbstitution
*/
/* Check if macrotext variable does not refer to
* local, static or field.
*/
#if ! defined( HB_MACRO_SUPPORT )
hb_compIsValidMacroText( HB_COMP_PARAM,
pSelf->value.asMacro.szMacro,
strlen( pSelf->value.asMacro.szMacro ) );
#endif
HB_GEN_FUNC2( PushString, pSelf->value.asMacro.szMacro, strlen( pSelf->value.asMacro.szMacro ) + 1 );
}
}
/* compile & run - macro compiler will generate pcode to pop a value
* from the eval stack
*/
if( pSelf->value.asMacro.SubType != HB_ET_MACRO_ALIASED )
{
HB_GEN_FUNC1( PCode1, HB_P_MACROPOP );
/* Always add byte to pcode indicating requested macro compiler flag. */
HB_GEN_FUNC1( PCode1, ( 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_DELETE( 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_EXPR_PTR pName = pSelf->value.asFunCall.pFunName;
HB_EXPR_PTR pParms = pSelf->value.asFunCall.pParms;
USHORT usCount = ( USHORT ) hb_compExprParamListLen( pParms );
#ifndef HB_MACRO_SUPPORT
if( hb_compFunCallCheck( HB_COMP_PARAM, pName->value.asSymbol, usCount ) )
#endif
{
if( strcmp( "AT", pName->value.asSymbol ) == 0 )
{
if( usCount == 2 )
hb_compExprReduceAT( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "CHR", pName->value.asSymbol ) == 0 )
{
if( usCount )
hb_compExprReduceCHR( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "LEN", pName->value.asSymbol ) == 0 )
{
if( usCount && HB_SUPPORT_HARBOUR )
hb_compExprReduceLEN( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "EMPTY", pName->value.asSymbol ) == 0 )
{
if( usCount && HB_SUPPORT_HARBOUR )
hb_compExprReduceEMPTY( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "ASC", pName->value.asSymbol ) == 0 )
{
if( usCount && HB_SUPPORT_HARBOUR )
hb_compExprReduceASC( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "INT", pName->value.asSymbol ) == 0 )
{
if( usCount == 1 && HB_SUPPORT_HARBOUR )
hb_compExprReduceINT( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "STOD", pName->value.asSymbol ) == 0 ||
strcmp( "HB_STOD", pName->value.asSymbol ) == 0 )
{
if( usCount < 2 && HB_SUPPORT_HARBOUR )
hb_compExprReduceSTOD( pSelf, usCount, HB_COMP_PARAM );
}
else if( strcmp( "DTOS", pName->value.asSymbol ) == 0 )
{
if( usCount == 1 )
hb_compExprReduceDTOS( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "CTOD", pName->value.asSymbol ) == 0 )
{
if( usCount && HB_SUPPORT_HARBOUR )
hb_compExprReduceCTOD( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "MIN", pName->value.asSymbol ) == 0 )
{
if( usCount == 2 && HB_SUPPORT_HARBOUR )
hb_compExprReduceMIN( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "MAX", pName->value.asSymbol ) == 0 )
{
if( usCount == 2 && HB_SUPPORT_HARBOUR )
hb_compExprReduceMAX( pSelf, HB_COMP_PARAM );
}
else if( strcmp( "UPPER", pName->value.asSymbol ) == 0 )
{
if( usCount )
hb_compExprReduceUPPER( pSelf, HB_COMP_PARAM );
}
else if( strncmp( "HB_BIT", pName->value.asSymbol, 6 ) == 0 &&
usCount && pParms->value.asList.pExprList->ExprType == HB_ET_NUMERIC )
{
HB_EXPR_PTR pArg = pParms->value.asList.pExprList;
HB_LONG lResult = 0;
BOOL fOptimize = FALSE, fBool = FALSE;
if( usCount >= 2 )
{
if( pArg->pNext->ExprType == HB_ET_NUMERIC )
{
if( strcmp( "AND", pName->value.asSymbol + 6 ) == 0 )
{
fOptimize = TRUE;
lResult = hb_compExprAsLongNum( pArg );
while( --usCount )
{
pArg = pArg->pNext;
if( pArg->ExprType != HB_ET_NUMERIC )
{
fOptimize = FALSE;
break;
}
lResult &= hb_compExprAsLongNum( pArg );
}
}
else if( strcmp( "OR", pName->value.asSymbol + 6 ) == 0 )
{
fOptimize = TRUE;
lResult = hb_compExprAsLongNum( pArg );
while( --usCount )
{
pArg = pArg->pNext;
if( pArg->ExprType != HB_ET_NUMERIC )
{
fOptimize = FALSE;
break;
}
lResult |= hb_compExprAsLongNum( pArg );
}
}
else if( strcmp( "XOR", pName->value.asSymbol + 6 ) == 0 )
{
fOptimize = TRUE;
lResult = hb_compExprAsLongNum( pArg );
while( --usCount )
{
pArg = pArg->pNext;
if( pArg->ExprType != HB_ET_NUMERIC )
{
fOptimize = FALSE;
break;
}
lResult ^= hb_compExprAsLongNum( pArg );
}
}
else if( strcmp( "TEST", pName->value.asSymbol + 6 ) == 0 )
{
HB_LONG lBit = hb_compExprAsLongNum( pArg->pNext );
lResult = ( hb_compExprAsLongNum( pArg ) &
( ( HB_LONG ) 1 << lBit ) ) != 0;
fOptimize = fBool = TRUE;
}
else if( strcmp( "SET", pName->value.asSymbol + 6 ) == 0 )
{
HB_LONG lBit = hb_compExprAsLongNum( pArg->pNext );
lResult = hb_compExprAsLongNum( pArg ) |
( ( HB_LONG ) 1 << lBit );
fOptimize = TRUE;
}
else if( strcmp( "RESET", pName->value.asSymbol + 6 ) == 0 )
{
HB_LONG lBit = hb_compExprAsLongNum( pArg->pNext );
lResult = hb_compExprAsLongNum( pArg ) &
( ~ ( ( HB_LONG ) 1 << lBit ) );
fOptimize = TRUE;
}
else if( strcmp( "SHIFT", pName->value.asSymbol + 6 ) == 0 )
{
HB_LONG lBits = hb_compExprAsLongNum( pArg->pNext );
lResult = hb_compExprAsLongNum( pArg );
if( lBits < 0 )
lResult >>= -lBits;
else
lResult <<= lBits;
fOptimize = TRUE;
}
}
}
else if( strcmp( "NOT", pName->value.asSymbol + 6 ) == 0 )
{
lResult = ~hb_compExprAsLongNum( pArg );
fOptimize = TRUE;
}
if( fOptimize )
hb_compExprReduceBitFunc( pSelf, lResult, fBool, HB_COMP_PARAM );
}
#ifndef HB_MACRO_SUPPORT
else if( strncmp( "HB_I18N_", pName->value.asSymbol, 8 ) == 0 )
{
HB_EXPR_PTR pArg = pParms->value.asList.pExprList, pCount = NULL;
BOOL fStrict, fNoop, fPlural, fI18nFunc;
ULONG ulPos = 8;
fStrict = fNoop = fPlural = fI18nFunc = FALSE;
if( pName->value.asSymbol[ ulPos ] == 'N' )
{
fPlural = TRUE;
ulPos++;
}
if( strncmp( "GETTEXT", &pName->value.asSymbol[ ulPos ], 7 ) == 0 )
{
ulPos += 7;
if( pName->value.asSymbol[ ulPos ] == '_' )
{
++ulPos;
if( strcmp( "STRICT", &pName->value.asSymbol[ ulPos ] ) == 0 )
fI18nFunc = fStrict = TRUE;
else if( strcmp( "NOOP", &pName->value.asSymbol[ ulPos ] ) == 0 )
fI18nFunc = fNoop = TRUE;
}
else if( !pName->value.asSymbol[ ulPos ] )
fI18nFunc = TRUE;
}
if( fI18nFunc )
{
int iWarning = 0;
HB_EXPR_PTR pBadParam = NULL;
const char * szExpect = NULL;
const char * szContext = NULL;
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->ulLength > 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 && pArg->ulLength > 0 )
{
if( HB_COMP_PARAM->fI18n )
{
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 )
{
ULONG ulLen = hb_compExprListLen( pArg ), ul;
HB_EXPR_PTR 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 ) ] */
HB_EXPR_PTR 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 );
}
}
}
#endif
}
}
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:
{
BOOL fArgsList = FALSE;
USHORT usCount = 0;
if( pSelf->value.asFunCall.pFunName->ExprType == HB_ET_FUNNAME )
{
HB_GEN_FUNC1( PushFunCall, pSelf->value.asFunCall.pFunName->value.asSymbol );
}
else
{
HB_EXPR_USE( pSelf->value.asFunCall.pFunName, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_PUSHNIL );
}
/* NOTE: pParms will be NULL in 'DO procname' (if there is
* no WITH keyword)
*/
if( pSelf->value.asFunCall.pParms )
{
usCount = ( 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_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, ( BYTE ) usCount );
break;
}
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
{
BOOL fArgsList = FALSE;
USHORT usCount = 0;
if( pSelf->value.asFunCall.pFunName->ExprType == HB_ET_FUNNAME )
{
HB_GEN_FUNC1( PushFunCall, pSelf->value.asFunCall.pFunName->value.asSymbol );
}
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 = ( 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, ( BYTE ) usCount );
break;
}
case HB_EA_DELETE:
if( pSelf->value.asFunCall.pParms )
HB_COMP_EXPR_DELETE( pSelf->value.asFunCall.pParms );
HB_COMP_EXPR_DELETE( 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 );
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:
{
HB_EXPR_PTR 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_EXPR_PCODE2( hb_compExprUseAliasMacro, pSelf, HB_EA_PUSH_PCODE );
}
else if( pAlias->ExprType == HB_ET_ALIAS )
{
/*
* myalias->var
* FIELD->var
* MEMVAR->var
*
* NOTE: TRUE = push also alias
*/
HB_GEN_FUNC4( PushAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol, TRUE, pAlias->value.asSymbol, 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, TRUE, NULL, pAlias->value.asNum.val.l );
else
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
}
else if( pAlias->ExprType == HB_ET_LIST )
{
/*
* ( expression )->var
*
* NOTE: FALSE = don't push alias value
*/
HB_EXPR_USE( pAlias, HB_EA_PUSH_PCODE );
HB_GEN_FUNC4( PushAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol, FALSE, NULL, 0 );
}
else
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
break;
}
case HB_EA_POP_PCODE:
{
HB_EXPR_PTR 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_EXPR_PCODE2( hb_compExprUseAliasMacro, pSelf, HB_EA_POP_PCODE );
}
else if( pAlias->ExprType == HB_ET_ALIAS )
{
/*
* myalias->var
* FIELD->var
* MEMVAR->var
*/
HB_GEN_FUNC4( PopAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol, TRUE, pAlias->value.asSymbol, 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, TRUE, NULL, pAlias->value.asNum.val.l );
else
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
}
else if( pAlias->ExprType == HB_ET_LIST )
{
/*
* ( expression )->var
*
* NOTE: FALSE = don't push alias value
*/
if( pAlias->ExprType == HB_ET_NONE )
{
/* empty expression -> ()->var
*/
hb_compErrorAlias( HB_COMP_PARAM, pAlias );
}
else
{
HB_EXPR_USE( pAlias, HB_EA_PUSH_PCODE );
HB_GEN_FUNC4( PopAliasedVar, pSelf->value.asAlias.pVar->value.asSymbol, 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_DELETE( pSelf->value.asAlias.pAlias );
if( pSelf->value.asAlias.pVar )
HB_COMP_EXPR_DELETE( pSelf->value.asAlias.pVar );
break;
}
return pSelf;
}
/* handler for expression->( exression, ... ) 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 );
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 swaping 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_DELETE( pSelf->value.asAlias.pAlias );
HB_COMP_EXPR_DELETE( 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, 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_FUNC1( PushFunSym, pSelf->value.asSymbol );
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_DELETE( 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
* genearate 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, FALSE, NULL, 0 );
else
HB_GEN_FUNC2( PushVar, pSelf->value.asSymbol, FALSE );
}
#else
HB_GEN_FUNC2( PushVar, pSelf->value.asSymbol, FALSE );
#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, FALSE, NULL, 0 );
else
HB_GEN_FUNC1( PopVar, pSelf->value.asSymbol );
}
#else
HB_GEN_FUNC1( PopVar, pSelf->value.asSymbol );
#endif
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_GEN_FUNC2( PushVar, pSelf->value.asSymbol, FALSE );
HB_GEN_FUNC1( PCode1, HB_P_POP );
break;
case HB_EA_DELETE:
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseSend )
{
switch( iMessage )
{
case HB_EA_REDUCE:
/* Clipper does not reduce object expressions */
if( HB_SUPPORT_HARBOUR && pSelf->value.asMessage.pObject )
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 ? */
{
BOOL fArgsList = 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, ( BYTE ) iParms );
}
else
{
/* acces 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 );
HB_EXPR_USE( pSelf->value.asMessage.pParms, HB_EA_PUSH_PCODE );
HB_GEN_FUNC2( PCode2, HB_P_SENDSHORT, 1 );
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_DELETE( pSelf->value.asMessage.pObject );
}
if( pSelf->value.asMessage.pParms )
{
HB_COMP_EXPR_DELETE( pSelf->value.asMessage.pParms );
}
if( pSelf->value.asMessage.pMessage )
{
HB_COMP_EXPR_DELETE( 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 );
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_EXPR_PCODE2( hb_compExprPushPostOp, pSelf, HB_P_INC );
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_EXPR_PCODE2( hb_compExprUsePreOp, pSelf, HB_P_INC );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_DELETE( 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 );
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_EXPR_PCODE2( hb_compExprPushPostOp, pSelf, HB_P_DEC );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUsePreOp, pSelf, HB_P_DEC );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_DELETE( pSelf->value.asOperator.pLeft );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseAssign )
{
switch( iMessage )
{
case HB_EA_REDUCE:
{
HB_EXPR_PTR 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 );
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,
pExpr->value.asOperator.pLeft->value.asSymbol ) == 0 )
{
/* NOTE: direct type change */
switch( pExpr->ExprType )
{
case HB_EO_PLUS:
pExpr->ExprType = HB_EO_PLUSEQ;
break;
case HB_EO_MINUS:
pExpr->ExprType = HB_EO_MINUSEQ;
break;
case HB_EO_MULT:
pExpr->ExprType = HB_EO_MULTEQ;
break;
case HB_EO_DIV:
pExpr->ExprType = HB_EO_DIVEQ;
break;
case HB_EO_MOD:
pExpr->ExprType = HB_EO_MODEQ;
break;
case HB_EO_POWER:
pExpr->ExprType = HB_EO_EXPEQ;
break;
}
pSelf->value.asOperator.pRight = NULL;
HB_COMP_EXPR_FREE( pSelf );
pSelf = pExpr;
}
break;
}
case HB_EA_ARRAY_AT:
case HB_EA_ARRAY_INDEX:
case HB_EA_LVALUE:
break;
case HB_EA_PUSH_PCODE:
/* NOTE: assigment to an object instance variable needs special handling
*/
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_SEND )
{
HB_EXPR_PTR pObj = pSelf->value.asOperator.pLeft;
pObj->value.asMessage.pParms = pSelf->value.asOperator.pRight;
HB_EXPR_USE( pObj, HB_EA_POP_PCODE );
pObj->value.asMessage.pParms = NULL; /* to suppress duplicated releasing */
}
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 )
{
HB_EXPR_PTR pObj = pSelf->value.asOperator.pLeft;
pObj->value.asMessage.pParms = pSelf->value.asOperator.pRight;
HB_EXPR_USE( pObj, HB_EA_POP_PCODE );
pObj->value.asMessage.pParms = NULL; /* to suppress duplicated releasing */
/* 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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 );
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_EXPR_PCODE2( hb_compExprPushOperEq, pSelf, HB_P_PLUS );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUseOperEq, pSelf, HB_P_PLUS );
break;
case HB_EA_DELETE:
HB_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 );
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_EXPR_PCODE2( hb_compExprPushOperEq, pSelf, HB_P_MINUS );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUseOperEq, pSelf, HB_P_MINUS );
break;
case HB_EA_DELETE:
HB_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 );
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_EXPR_PCODE2( hb_compExprPushOperEq, pSelf, HB_P_MULT );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUseOperEq, pSelf, HB_P_MULT );
break;
case HB_EA_DELETE:
HB_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 );
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_EXPR_PCODE2( hb_compExprPushOperEq, pSelf, HB_P_DIVIDE );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUseOperEq, pSelf, HB_P_DIVIDE );
break;
case HB_EA_DELETE:
HB_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 );
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_EXPR_PCODE2( hb_compExprPushOperEq, pSelf, HB_P_MODULUS );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUseOperEq, pSelf, HB_P_MODULUS );
break;
case HB_EA_DELETE:
HB_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 );
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_EXPR_PCODE2( hb_compExprPushOperEq, pSelf, HB_P_POWER );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUseOperEq, pSelf, HB_P_POWER );
break;
case HB_EA_DELETE:
HB_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 ) )
{
LONG lEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
lEndPos = 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, lEndPos );
}
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 ) )
{
LONG lEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
lEndPos = 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
{
BOOL fMeaningful = HB_COMP_PARAM->fMeaningful;
/* do not generate warning about meaningless expression usage */
HB_COMP_PARAM->fMeaningful = TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
HB_COMP_PARAM->fMeaningful = fMeaningful;
}
#endif
HB_GEN_FUNC1( JumpHere, lEndPos );
}
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 ) )
{
LONG lEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, HB_P_DUPLICATE );
lEndPos = 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, lEndPos );
}
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 ) )
{
LONG lEndPos;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
lEndPos = 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
{
BOOL fMeaningful = HB_COMP_PARAM->fMeaningful;
/* do not generate warning about meaningless expression usage */
HB_COMP_PARAM->fMeaningful = TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pRight, HB_EA_PUSH_POP );
HB_COMP_PARAM->fMeaningful = fMeaningful;
}
#endif
HB_GEN_FUNC1( JumpHere, lEndPos );
}
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
break;
}
return pSelf;
}
static HB_EXPR_FUNC( hb_compExprUseNot )
{
switch( iMessage )
{
case HB_EA_REDUCE:
{
HB_EXPR_PTR 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;
pSelf->ExprType = HB_ET_NONE; /* do not delete operator parameter - we are still using it */
HB_COMP_EXPR_DELETE( 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_DELETE( 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_DELETE( 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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 )
{
HB_EXPR_PTR 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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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 )
{
HB_EXPR_PTR 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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_EXPR_PCODE1( hb_compExprDelOperator, pSelf );
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_DELETE( 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 );
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_EXPR_PCODE2( hb_compExprPushPreOp, pSelf, HB_P_INC );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUsePreOp, pSelf, HB_P_INC );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_DELETE( 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 );
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_EXPR_PCODE2( hb_compExprPushPreOp, pSelf, HB_P_DEC );
break;
case HB_EA_POP_PCODE:
break;
case HB_EA_PUSH_POP:
case HB_EA_STATEMENT:
HB_EXPR_PCODE2( hb_compExprUsePreOp, pSelf, HB_P_DEC );
break;
case HB_EA_DELETE:
if( pSelf->value.asOperator.pLeft )
HB_COMP_EXPR_DELETE( 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( HB_EXPR_PTR pSelf, HB_COMP_DECL )
#else
static void hb_compExprCodeblockPush( HB_EXPR_PTR pSelf, BOOL bLateEval, HB_COMP_DECL )
#endif
{
HB_EXPR_PTR pExpr, pNext;
HB_EXPR_PTR * 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, bLateEval );
HB_COMP_PARAM->functions.pLast->fVParams =
( pSelf->value.asCodeblock.flags & HB_BLOCK_VPARAMS ) != 0;
{
HB_CBVAR_PTR pVar;
HB_COMP_PARAM->iVarScope = VS_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_EXPR_PCODE0( hb_compLinePushIfDebugger );
#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_SYMBOL &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_REFER &&
pExpr->value.asMacro.SubType != HB_ET_MACRO_ALIASED )
{
/* 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 */
pExpr = HB_EXPR_USE( pExpr, HB_EA_REDUCE );
/* Generate push/pop pcodes for all expresions except the last one
* The value of the last expression is used as a return value
* of a codeblock evaluation
*/
/* NOTE: This will genereate warnings if constant value is
* used as an expression - some operators will generate it too
* e.g.
* EVAL( {|| 3+5, func()} )
*/
*pPrev = pExpr; /* store a new expression into the previous one */
pExpr->pNext = pNext; /* restore the link to next expression */
#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 && bLateEval )
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( bLateEval )
hb_compCodeBlockEnd( HB_COMP_PARAM );
else
hb_compCodeBlockRewind( HB_COMP_PARAM );
#endif
}
/* This generates a push pcode for early evaluation of a macro
*/
#if !defined(HB_MACRO_SUPPORT)
static void hb_compExprCodeblockExtPush( HB_EXPR_PTR pSelf, HB_COMP_DECL )
{
hb_compGenPCodeN( ( BYTE * ) pSelf->value.asCodeblock.string,
pSelf->ulLength, HB_COMP_PARAM );
}
static void hb_compExprCodeblockEarly( HB_EXPR_PTR pSelf, HB_COMP_DECL )
{
HB_EXPR_PTR pExpr;
/* check first expression */
pExpr = pSelf->value.asCodeblock.pExprList;
if( pExpr->ExprType == HB_ET_MACRO && pExpr->value.asMacro.cMacroOp )
{
/* simple macro variable expansion: &variable
* 'szMacro' is a variable name
* {|| &variable} => &( '{||' + variable +'}' )
*/
HB_EXPR_PTR pVar, pNew;
pVar = hb_compExprNewVar( pExpr->value.asMacro.szMacro, HB_COMP_PARAM );
pNew = hb_compExprNewString( "{||", 3, 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, 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_DELETE( pNew );
}
else
{
/* everything else is macro compiled at runtime
* {|| &variable+1} => &( '{|| &variable+1}' )
*/
HB_EXPR_PTR pNew;
hb_compExprCodeblockPush( pSelf, FALSE, HB_COMP_PARAM );
pNew = hb_compExprNewMacro( hb_compExprNewString( pSelf->value.asCodeblock.string, pSelf->ulLength, FALSE, HB_COMP_PARAM ), 0, NULL, HB_COMP_PARAM );
HB_EXPR_USE( pNew, HB_EA_PUSH_PCODE );
HB_COMP_EXPR_DELETE( pNew );
hb_compCodeBlockStop( HB_COMP_PARAM );
}
}
#endif /*HB_MACRO_SUPPORT*/
static void hb_compExprPushSendPop( HB_EXPR_PTR pSelf, HB_COMP_DECL )
{
if( pSelf->value.asMessage.pObject )
{
/* Push _message */
if( pSelf->value.asMessage.szMessage )
{
HB_GEN_FUNC2( MessageData, pSelf->value.asMessage.szMessage, 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, 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, FALSE );
}
}
}
static void hb_compExprPushSendPush( HB_EXPR_PTR pSelf, HB_COMP_DECL )
{
if( pSelf->value.asMessage.pObject )
{
/* Push message */
if( pSelf->value.asMessage.szMessage )
{
HB_GEN_FUNC2( Message, pSelf->value.asMessage.szMessage, 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, 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, FALSE );
}
}
}
static void hb_compExprPushSendPopPush( HB_EXPR_PTR pObj, HB_EXPR_PTR pValue,
BOOL fPreOp, 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 )
{
/* TRUE used intnetionally to not push object variable in WITH OBJECT */
HB_GEN_FUNC2( Message, pObj->value.asMessage.szMessage, 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( HB_EXPR_PTR pSelf, BYTE bOpEq, HB_COMP_DECL )
{
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( 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,
FALSE, bOpEq, HB_COMP_PARAM );
}
return;
}
else if( bOpEq != bNewOp )
{
if( pSelf->value.asOperator.pLeft->ExprType == HB_ET_MACRO )
{
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 );
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 = TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = 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, &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 )
{
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 );
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( HB_EXPR_PTR pSelf, BYTE bOpEq, HB_COMP_DECL )
{
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( 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,
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 )
{
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 );
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 = TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = 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 )
{
HB_EXPRTYPE iOldType;
#if defined( HB_MACRO_SUPPORT )
{
#else
int iVar, iScope;
hb_compVariableFind( HB_COMP_PARAM, pSelf->value.asOperator.pLeft->value.asSymbol, &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 )
{
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 */
iOldType = pSelf->value.asOperator.pLeft->ExprType;
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 );
pSelf->value.asOperator.pLeft->ExprType = iOldType;
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( HB_EXPR_PTR pSelf, 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_HARBOUR )
{
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, ( bOper == HB_P_INC ) ? HB_P_INCEQ : HB_P_DECEQ );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft, NULL,
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 )
{
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 );
pSelf->value.asOperator.pLeft->value.asMacro.SubType = usType;
/* increase/decrease operation, leave unreferenced value on stack */
HB_GEN_FUNC1( PCode1, ( 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 = TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = FALSE;
/* increase/decrease operation, leave unreferenced value on stack */
HB_GEN_FUNC1( PCode1, ( 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, &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 */
HB_EXPRTYPE iOldType = pSelf->value.asOperator.pLeft->ExprType;
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, ( BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQ : HB_P_DECEQ ) );
pSelf->value.asOperator.pLeft->ExprType = iOldType;
}
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( HB_EXPR_PTR pSelf, 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_HARBOUR )
{
/* 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, ( bOper == HB_P_INC ) ? HB_P_INCEQPOP : HB_P_DECEQPOP );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft, NULL,
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 )
{
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 );
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, ( 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 = TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = 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, ( 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, &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, ( BYTE ) ( bOper == HB_P_INC ? HB_P_LOCALINC : HB_P_LOCALDEC ),
HB_LOBYTE( iVar ), HB_HIBYTE( iVar ) );
}
else
{
/* NOTE: direct type change */
HB_EXPRTYPE iOldType = pSelf->value.asOperator.pLeft->ExprType;
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, ( BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
pSelf->value.asOperator.pLeft->ExprType = iOldType;
}
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( HB_EXPR_PTR pSelf, 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_HARBOUR )
{
/* 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, ( bOper == HB_P_INC ) ? HB_P_INCEQPOP : HB_P_DECEQPOP );
}
else
#endif
{
hb_compExprPushSendPopPush( pSelf->value.asOperator.pLeft, NULL,
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 )
{
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 );
pSelf->value.asOperator.pLeft->value.asMacro.SubType = usType;
/* increase/decrease operation */
HB_GEN_FUNC1( PCode1, ( 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 = TRUE;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
pSelf->value.asOperator.pLeft->value.asList.reference = FALSE;
/* increase/decrease operation */
HB_GEN_FUNC1( PCode1, ( 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, &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, ( BYTE ) ( bOper == HB_P_INC ? HB_P_LOCALINC : HB_P_LOCALDEC ),
HB_LOBYTE( iVar ), HB_HIBYTE( iVar ) );
}
else
{
/* NOTE: direct type change */
HB_EXPRTYPE iOldType = pSelf->value.asOperator.pLeft->ExprType;
pSelf->value.asOperator.pLeft->ExprType = HB_ET_VARREF;
HB_EXPR_USE( pSelf->value.asOperator.pLeft, HB_EA_PUSH_PCODE );
HB_GEN_FUNC1( PCode1, ( BYTE ) ( bOper == HB_P_INC ? HB_P_INCEQPOP : HB_P_DECEQPOP ) );
pSelf->value.asOperator.pLeft->ExprType = iOldType;
}
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( HB_EXPR_PTR pAliasedVar, BYTE bAction, HB_COMP_DECL )
{
HB_EXPR_PTR 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, strlen( pAlias->value.asSymbol ) + 1 );
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 );
}
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, strlen( pVar->value.asSymbol ) + 1 );
if( bAction == HB_EA_PUSH_PCODE )
HB_GEN_FUNC1( PCode1, HB_P_MACROPUSHALIASED );
else
HB_GEN_FUNC1( PCode1, HB_P_MACROPOPALIASED );
}
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, ( BYTE ) HB_MACRO_GENFLAGS );
}
/* Reduces the list of expressions
*
* pExpr is the first expression on the list
*/
static HB_EXPR_PTR hb_compExprReduceList( HB_EXPR_PTR pList, HB_COMP_DECL )
{
HB_EXPR_PTR pNext, pExpr;
HB_EXPR_PTR * pPrev;
/* NOTE: During optimalization an expression on the list can be
* replaced by the new one
*/
pPrev = &pList->value.asList.pExprList;
pExpr = pList->value.asList.pExprList;
while( pExpr )
{
pNext = pExpr->pNext; /* store next expression in case the current will be reduced */
pExpr = HB_EXPR_USE( pExpr, HB_EA_REDUCE );
if( HB_SUPPORT_HARBOUR )
pExpr = hb_compExprListStrip( pExpr, HB_COMP_PARAM );
*pPrev = pExpr; /* store a new expression into the previous one */
pExpr->pNext = pNext; /* restore the link to next expression */
pPrev = &pExpr->pNext;
pExpr = pNext;
}
return pList;
}
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