[Mono-devel-list] RE: [mono-vb] VB Class status

[A Rafael D Teixeira]

that is at least consistent with our hipothesys... but I still don't know if 
we can solve it in c#, or things are getting ugly and besides fixing mbas we 
will have to recode in vb.net...

Good work, Rob

Rafael "Monoman" Teixeira
Mono Hacker since 16 Jul 2001 - http://www.go-mono.org/
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>From: Rob.Tillie@Student.tUL.EDU
>To: rafaelteixeirabr@hotmail.com
>CC: mono-vb@lists.ximian.com
>Subject: RE: [Mono-devel-list] RE: [mono-vb] VB Class status
>Date: Thu, 24 Jun 2004 22:03:44 +0200
>
>I did a little test with the following sample:
>
>Imports System
>Imports Microsoft.VisualBasic
>
>Module GetPutObject
>	Sub Main
>		Dim c As String
>		FileSystem.FileOpen(1, "GetPutObject.txt", OpenMode.Binary)
>		FileSystem.FilePutObject(1, "ABCDEF", -1)
>		FileSystem.Seek(1, 1)
>		FileSystem.FileGetObject(1, c, -1)
>		Console.WriteLine(c)
>		Dim arr(1) as Integer
>		arr(0) = 1
>		FileSystem.FileClose(arr)
>	End Sub
>End Module
>
>Concentrating on the FileOpen method, which has an extra 3 optional
>parameters.
>
>Compiler: Microsoft (R) Visual Basic .NET Compiler version 7.10.3052.4
>
>Compiled using MS's MS.VB.dll, the IL to call the method looks like this:
>IL_0000:  ldc.i4.1
>   IL_0001:  ldstr      "GetPutObject.txt"
>   IL_0006:  ldc.i4.s   32
>   IL_0008:  ldc.i4.m1
>   IL_0009:  ldc.i4.m1
>   IL_000a:  ldc.i4.m1
>   IL_000b:  call       void
>[Microsoft.VisualBasic]Microsoft.VisualBasic.FileSystem::FileOpen(int32,
>string,
>valuetype [Microsoft.VisualBasic]Microsoft.VisualBasic.OpenMode,
>valuetype [Microsoft.VisualBasic]Microsoft.VisualBasic.OpenAccess,
>valuetype [Microsoft.VisualBasic]Microsoft.VisualBasic.OpenShare,
>int32)
>
>Compiled using Mono's MS.VB:
>IL_0000:  ldc.i4.1
>   IL_0001:  ldstr      "GetPutObject.txt"
>   IL_0006:  ldc.i4.s   32
>   IL_0008:  ldc.i4.0
>   IL_0009:  ldc.i4.0
>   IL_000a:  ldc.i4.0
>   IL_000b:  call       void
>[Microsoft.VisualBasic]Microsoft.VisualBasic.FileSystem::FileOpen(int32,
>string,
>valuetype [Microsoft.VisualBasic]Microsoft.VisualBasic.OpenMode,
>valuetype [Microsoft.VisualBasic]Microsoft.VisualBasic.OpenAccess,
>valuetype [Microsoft.VisualBasic]Microsoft.VisualBasic.OpenShare,
>int32)
>
>Obviously it is passing 0 for each default value, while this should be 
>-1...
>(I don't know anything about IL, but I guess m1 stands for -1)
>
>Greetz,
>-- Rob.

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