dynamic-language-runtime

The majority of material I have found regarding DLR is related to IronPython. Can you parse and execute C# using DLR? If so is there over head that would prevent you from attempting this on a web server with about 30 users? More specifically I would like to script the configuration of my workflow objects when a user first initiates a workflow. Depending on conditions that change through out the year workflows may start at different steps, hence running configuration scripts seems like a good way to handle the variation. It sounds like you're really talking about the C# "compiler as a service"

I would like to host the Dynamic Language Runtime (DLR) in such a way that users who run arbitrary scripts in it cannot bring the process down? The DLR hosting spec describes how to host the DLR in a separate ApplicationDomain. This allows to tear down and unload a script runtime and to restrict certain operations through CAS (e.g. I can restrict file system access or disallow use of reflection). But are there also ways to for example: - restrict the maximum amount of memory used by a script? - restrict the number of threads created by a script? - detect deadlocked scripts? I think such fine

Closed . This question needs to be more focused. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it focuses on one problem only by editing this post . I have an affinity for python, but I work in a .NET environment, so I was looking into Iron Python, and wondering what it would be used for. Could you write an app in it? or is it for adding a scripting language to your app? How do you guys use it? Either or both :) I wouldn't claim to know a specific "purpose" for IronPython but it certainly can be used to write applications, and it can

The dynamic language runtime (DLR) has some pretty cool code for Expression's, including some very nice code to print out Expression trees which I want to use so that: int a = 1; int b = 2; Expression<Func<int, int>> expression = (c) => a + (b * c) expression.Evaluate(5, stringBuilder) Outputs: (5) => a + (b * c) = 11 Where a = 1 b * c = 10 Where b = 2 c = 5 I found some code on the net to do this but found that it only works if the expressiontakes in no arguments. http://incrediblejourneysintotheknown.blogspot.com/2009/02/displaying-nested-evaluation-tree-from.html I then discovered the DLR

scaning the internet , im having trouble understanding in a simple manner - the term call-site (@dlr). ive been reading here that CallSite is : one site says The location in which the method is called. one book say : call site . This is the sort of atom of the DLR - the smallest piece of codewhich can be considered as a single unit. One expression may contain a lot of call sites, but the behavioris built up in the natural way, evaluating one call site at a time. For the rest of the discussion, we'll onlyconsider a single call site at a time. It's going to be useful to have a small example of a

I'm currently doing the following to create and execute a simple python calculation, using DLR: ScriptRuntime runtime = Python.CreateRuntime(); ScriptEngine engine = runtime.GetEngine("py"); MemoryStream ms = new MemoryStream(); runtime.IO.SetOutput(ms, new StreamWriter(ms)); ScriptSource ss = engine.CreateScriptSourceFromString("print 1+1", SourceCodeKind.InteractiveCode); CompiledCode cc = ss.Compile(); cc.Execute(); int length = (int)ms.Length; Byte[] bytes = new Byte[length]; ms.Seek(0, SeekOrigin.Begin); ms.Read(bytes, 0, (int)ms.Length); string result = Encoding.GetEncoding("utf-8")

To implement "method-missing"-semantics and such in C# 4.0, you have to implement IDynamicObject: public interface IDynamicObject { MetaObject GetMetaObject(Expression parameter); } As far as I can figure out IDynamicObject is actually part of the DLR, so it is not new. But I have not been able to find much documentation on it. There are some very simple example implementations out there (f.x. here and here ), but could anyone point me to more complete implementations or some real documentation? Especially, how exactly are you supposed to handle the "parameter"-parameter? The short answer is