automated C# to vb.net translation

.Net has built in compiling and code generation via the CodeDom namespace. The code generater takes a CodeDom object (a language inspecific program) and writes sourcecode for it in either vb or c# depending on which object set you use.

I'm interested in translating some c# code to vb using the codedom.

The c# to vb translator I wrote uses this code to translate:

VB Code:

Dim cs As New Microsoft.CSharp.CSharpCodeProvider
        Dim csParser As CodeDom.Compiler.ICodeParser = cs.CreateParser
        [B]Dim DOM As CodeDom.CodeCompileUnit = csParser.Parse(New IO.StringReader(tC.Text))[/B]
 
        Dim vb As New Microsoft.VisualBasic.VBCodeProvider
        Dim vbGenerator As CodeDom.Compiler.ICodeGenerator = vb.CreateGenerator()
        Dim Output As System.Text.StringBuilder()
        Dim Dest As New IO.StringWriter(Output)
        vbGenerator.GenerateCodeFromCompileUnit(DOM, Dest, New CodeDom.Compiler.CodeGeneratorOptions)
        tV.Text = Output.ToString

The bolded line is where execution stops and I get a Null Reference Exception. What gives?

The source of the C# code is a textbox names 'tc' and the vb output should go to 'tv'.

Let me know if this can be done... it should have no problems.

An article about that in DevX:
Generate .NET Code in Any Language Using CodeDOM
In that example, they used GenerateCodeFromNamespace and GenerateCodeFromType, but you can also use: GenerateCodeFromExpression, GenerateCodeFromCompileUnit, GenerateCodeFromStatement.
There is an example to download also.

Quote:

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Originally Posted by jcis

An article about that in DevX:
Generate .NET Code in Any Language Using CodeDOM
In that example, they used GenerateCodeFromNamespace and GenerateCodeFromType, but you can also use: GenerateCodeFromExpression, GenerateCodeFromCompileUnit, GenerateCodeFromStatement.
There is an example to download also.

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I'm most interested in GenerateCodeFromCompileUnit, but the problem I'm having is CreateParser is returning a null reference instead of a parser which can provide a CodeCompileUnit that can be outputted to code.

Is there any other way to get a CodeCompileUnit from C# or VB.Net code or from a compiled assembly?