harbour-core/harbour/tests/debugtst.prg

/*
 * $Id$
 */

/*
 * $Doc$
 * $Description$  Debug function tests.
 *                Based on classes.prg
 * $End$
 *
 * Written by Eddie Runia <eddie@runia.com>
 * www - http://harbour-project.org
 *
 * Placed in the public domain
 */

#pragma warninglevel=1

PROCEDURE Main()

   LOCAL oForm   := TForm():New()
   LOCAL nNumber := 15

   ? oForm:ClassName()
   oForm:Show()
   ?

   ? "-OBJECT additions-"
   ? "What is in oForm ? "
   Debug( oForm:Transfer() )

   ? "Does transfer exists ? ", __objHasMsg   ( oForm, "Transfer" )
   ? "Is   transfer DATA   ? ", __objHasData  ( oForm, "Transfer" )
   ? "Is   transfer METHOD ? ", __objHasMethod( oForm, "Transfer" )
   ? "Does nLeft    exists ? ", __objHasMsg   ( oForm, "nLeft"    )
   ? "Is   nLeft    DATA   ? ", __objHasData  ( oForm, "nLeft"    )
   ? "Is   nLeft    METHOD ? ", __objHasMethod( oForm, "nLeft"    )
   ? "Does unknown  exists ? ", __objHasMsg   ( oForm, "Unknown"  )
   ? "Is   unknown  DATA   ? ", __objHasData  ( oForm, "Unknown"  )
   ? "Is   unknown  METHOD ? ", __objHasMethod( oForm, "Unknown"  )

   ? "Set nLeft to 50 and nRight to 100"
   oForm:Transfer( { "nLeft", 50 }, { "nRight", 100 } )
   Debug( oForm:Transfer() )

   Pause()


   ? "-DEBUG Functions-"
   ? "-Statics-"
   Debug( __dbgVMVarSList() )

   ? "-Global Stack-"
   Debug( __dbgVMStkGList() )

   ? "-Local Stack-"
   Debug( __dbgVMStkLList() )

   ? "-Parameters-"
   Debug( __dbgVMParLList() )

   Pause()

   FuncSecond( 241, "Hello" )

   RETURN

FUNCTION Pause()

   RETURN __Accept( "" )

FUNCTION FuncSecond( nParam, cParam, uParam )

   LOCAL cWhat   := "Something"
   LOCAL nNumber := 2
   LOCAL xParam
   LOCAL xStack

   ?
   ? "-Second procedure-"
   ?

   ? "-Statics-"
   Debug( __dbgVMVarSList() )
   ?

   ? "-Global Stack- Len=", __dbgVMStkGCount()
   Debug( __dbgVMStkGList() )
   ?

   ? "-Local Stack- Len=", __dbgVMStkLCount()
   xStack := Debug( __dbgVMStkLList() )
   ?

   ? "-Parameters-"
   xParam := Debug( __dbgVMParLList() )
   IF xParam[ xStack[ 7 ] ] == "Hello"
      ? ":-)"
   ENDIF

   Pause()

   RETURN NIL


/* $Doc$
 * $FuncName$     <oForm> TForm()
 * $Description$  Returns TForm object
 * $End$ */

FUNCTION TForm()

   STATIC oClass

   IF oClass == NIL
      oClass := HBClass():New( "TFORM" )    // starts a new class definition

      oClass:AddData( "cName" )           // define this class objects datas
      oClass:AddData( "nTop" )
      oClass:AddData( "nLeft" )
      oClass:AddData( "nBottom" )
      oClass:AddData( "nRight" )

      oClass:AddVirtual( "aExcept" )      // Export exceptions

      oClass:AddMethod( "New",  @New() )  // define this class objects methods
      oClass:AddMethod( "Show", @Show() )
      oClass:AddMethod( "Transfer", @Transfer() )

      oClass:Create()                     // builds this class
   ENDIF

   RETURN oClass:Instance()                  // builds an object of this class


/* $Doc$
 * $FuncName$     <oForm> TForm:New()
 * $Description$  Constructor
 * $End$ */

STATIC FUNCTION New()

   LOCAL Self := QSelf()

   ::nTop    := 10
   ::nLeft   := 10
   ::nBottom := 20
   ::nRight  := 40

   RETURN Self


/* $Doc$
 * $FuncName$     TForm:Show()
 * $Description$  Show a form
 * $End$ */

STATIC FUNCTION Show()

   LOCAL Self := QSelf()

   ? "lets show a form from here :-)"

   RETURN NIL

//
// <xRet> TForm:Transfer( [<xArg,..>] )
//
// Generic object import and export function
//
// <xArg> is present.
//
// Maximum number of arguments passed is limited to 10 !
//
// An argument can be one of the following :
//
// { <cSymbol>, <xValue> }              Set DATA <cSymbol> to <xValue>
// { { <cSym1>, <xVal1> }, { <cSym2>, <xVal2> }, ... }
//                                      Set a whole list symbols to value
//                                      Normal way of set objects from external
//                                      sources, like memo files.
// <oObject>                            Set self according to the DATA
//                                      contained in <oObject>
//                                      Can be used to transfer info from
//                                      one class to another
//
// If <xArg> is not present, the current object will be returned as an array
// for description see __objSetValueList / __objGetValueList.
//
// The method aExcept() is called to determine the DATA which should not
// be returned. Eg. hWnd ( do not copy this DATA from external source )
//
// Say we want to copy oSource into oTarget we say :
//
// oTarget:Transfer( oSource )
//
// If we do not want 'cName' duplicated we have to use __objGetValueList :
//
// aNewExcept := aClone( oSource:aExcept() )
// aAdd( aNewExcept, "cName" )  /* Add cName to exception list               */
// oTarget:Transfer( __objGetValueList( oSource, aNewExcept ) )
//                              /* Get DATA from oSource with new exceptions */
//                              /* Transfer DATA to oTarget                  */
//
// To set two DATA of oTarget :
//
// oTarget:Transfer( { "nLeft", 10 }, { "nRight", 5 } )
//
// or :
//
// aCollect := {}
// aAdd( aCollect, { "nLeft" , 10 } )
// aAdd( aCollect, { "nRight", 5  } )
// oTarget:Transfer( aCollect )
//
// Copy oSource to a memo field :
//
// DbObject->Memo := oSource:Transfer()
//
// (Re)create oTarget from the memo field :
//
// oTarget := TTarget():New()
// oTarget:Transfer( DbObject->Memo )
//

STATIC FUNCTION Transfer( x1, x2, x3, x4, x5, x6, x7, x8, x9, x10 ) /* etc */

   LOCAL self   := QSelf()
   LOCAL aParam := __dbgVMParLList()
   LOCAL nLen   := PCount()
   LOCAL xRet
   LOCAL xData
   LOCAL n

   IF nLen == 0
      xRet := __objGetValueLIST( self, ::aExcept() )
   ELSE
      FOR n := 1 TO nLen

         xData := aParam[ n ]
         IF ValType( xData ) == "A"

            IF ValType( xData[ 1 ] ) == "A"     // 2D array passed
               xRet := __objSetValueList( self, xData )
            ELSE                                // 1D array passed
               xRet := __objSetValueList( self, { xData } )
            ENDIF

         ELSEIF ValType( xData ) == "O"         // Object passed
            xRet := ::Transfer( xData:Transfer() )
         ELSEIF !( ValType( xData ) == "U" )
            ? "TRANSFER: Incorrect argument(", n, ") ", xData
         ENDIF

      NEXT
   ENDIF

   RETURN xRet

STATIC PROCEDURE Debug()
   RETURN