117 lines
2.9 KiB
Plaintext
117 lines
2.9 KiB
Plaintext
#define DATA_SYMBOL 1
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#define DATA_VAL 2
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//
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// <lRet> := IsData( <oObject>, <cSymbol> )
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//
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// Is the symbol present in the object as DATA ?
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//
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function IsData( oObject, cSymbol )
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return IsMessage( oObject, cSymbol ) .and. IsMessage( oObject, "_" + cSymbol )
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//
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// <lRet> := IsMethod( <oObject>, <cSymbol> )
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//
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// Is the symbol present in the object as METHOD ?
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//
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function IsMethod( oObject, cSymbol )
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return IsMessage( oObject, cSymbol ) .and. !IsMessage( oObject, "_" + cSymbol )
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//
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// <aData> aOData( <oObject>, [lDataMethod] )
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//
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// Return an array containing the names of all the data items of oObject.
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//
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// lDataMethod = .T. (default) Return all DATAs
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// .F. Return all METHODs
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//
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function aOData( oObject, lDataMethod )
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local aInfo := aSort( oObject:ClassSel() )
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local aData := {}
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local n := 1
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local nLen := Len( aInfo )
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local lFoundDM // Found DATA ?
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lDataMethod := Default( lDataMethod, .T. )
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do while n <= nLen .and. Substr( aInfo[ n ], 1, 1 ) != "_"
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/* If in range and no set function found yet ( set functions begin with a */
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/* leading underscore ). */
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lFoundDM := !Empty( aScan( aInfo, "_" + aInfo[ n ], n + 1 ) )
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/* Find position of matching set function in array with all symbols */
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if lFoundDM == lDataMethod // If found -> DATA
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// else METHOD
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aAdd( aData, aInfo[ n ] )
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endif
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n++
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enddo
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return aData
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//
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// aData aOMethod( oObject )
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//
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// Return an array containing the names of all the method of oObject.
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//
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function aOMethod( oObject )
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return aOData( oObject, .F. )
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//
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// <aData> aOGet( <oObject>, [<aExcept>] )
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//
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// Basically the same as aOData except that it returns a 2D array
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// containing :
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//
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// [x][1] Symbol name
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// [x][2] Value of DATA
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//
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// aExcept is an optional list of DATA you do not want to collect
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//
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function aOGet( oObject, aExcept )
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local aDataSymbol := aoData( oObject )
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local nLen := Len( aDataSymbol )
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local aData := {}
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local cSymbol
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local n
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aExcept := Default( aExcept, {} )
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for n := 1 to nLen
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cSymbol := aDataSymbol[ n ]
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if Empty( aScan( aExcept, cSymbol ) )
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aAdd( aData, { cSymbol, oSend( oObject, cSymbol ) } )
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endif
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next n
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return aData
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//
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// aOSet( <oObject>, <aData> )
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//
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// The reverse of aOGet. It puts an 2D array of DATA into an object.
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//
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function aOSet( oObject, aData )
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local n
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local nLen := Len( aData )
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// aEval( aData, ; // Still losing 2 block
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// {|aItem| oSend( oObject, "_"+aItem[DATA_SYMBOL], aItem[DATA_VAL] ) } )
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for n := 1 to nLen
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oSend( oObject, "_" + aData[n][DATA_SYMBOL], aData[n][DATA_VAL] )
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// Send the message
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next n
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return oObject
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