[Mono-vb] VsaEngine implementation.
A Rafael D Teixeira
Wed, 17 Dec 2003 11:36:07 -0200
On Tue, 2003-12-16 at 14:37, César López Natarén wrote:
> On Tue, 2003-12-16 at 15:30, Anony Mous wrote:
> > Hi César,
> > What exactly is a VsaEngine? I have looked around the net and it seems
> > to point to something in the Longhorn SDK, which is currently incomplete
> > and has little info on the subject. Can you expand on this a little
> > please?
> The VsaEngine, which comes from "Visual Studio for Applications",
> is the mechanism that offer scripting capabilities to .Net (although it existed before .Net too).
> They way VSA works is:
> 1) We have a host, our application. The host implements a interface, IVsaSite.
Is it a .NET or a COM Interface? If it is COM, we would have to make the
wrapping and all the COM Interop things that are nearly meaningless in
> 2) We have scriting execution machine (the VsaEngine), which implements the interface IVsaEngine.
> and communication is passed through the methods implementations from those interfaces.
> And basically what the VsaEngine does is, take a source file or an assembly and compiles/execute it.
> >From what I've been able to see that the JScript VsaEngine does is: taking care of the
> runtime supprt for assemblies generated by jsc. Basically, takes care of the global
> environment (types, functions, prototypes which are available) and the differents environments created
> on the course of the program execution.
> The code used for IVsaSite and IVsaEngine, is not difficult, I already have some
> chunks written at mcs/class/Microsoft.JScript/Microsoft.JScript/Vsa*.cs
> but the one for environments, is a little strange, also I have not found docs.
These itens are documented only for partners of M$ that already paid
lots of money for the right to make things that can be embedded in
Office/VisualStudio. NDAs apply.
> I think lot's of code can be shared in this one, and also some discussion will help us understand
> this thing.
Surely, all but some language-specific bits can be factored into some
Mono Hacker since 16 Jul 2001
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