[Mono-dev] Edit and Continue / Function body rewrite

[Kornél Pál]

Hi,

According to Microsoft's public announcements they have done significant 
modifications to their runtime to support Edit and Continue so this probably 
it's as easy as writing some managed code.

Kornél

----- Original Message ----- 
From: "Brian Crowell" <mono-devel at fluggo.com>
To: "David Srbecky" <dsrbecky at gmail.com>
Cc: <mono-devel-list at lists.ximian.com>
Sent: Friday, July 07, 2006 8:41 PM
Subject: Re: [Mono-dev] Edit and Continue / Function body rewrite


> David Srbecky wrote:
>> The idea is that I will emit disk assembly using System.Reflection.Emit
>> as usually, but later on I will re-emit body of some function and fetch
>> changed data into memory. Once I got the data I can feed it to the .NET
>> runtime - that should not be a problem.
>
> Er, I don't know the full internals of the Mono runtime, but I suspect 
> this is
> not that easy to do. Correct me if I'm wrong, but I think one of the main
> reasons assemblies cannot be unloaded is that it allows you to make some 
> very
> nice assumptions about the immutability of code-- for example, that 
> function
> pointers will not change. It may require patching previously JITted code 
> to
> reference a new function.
>
> Of course, I'd be happy to be wrong about this. Obviously, since Microsoft 
> did
> it, there must be a way.
>
> --Brian
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