I want to save the ScriptCode to assembly, load and run it next time.
I tried 3 ways, but all failed.
1. Here is my code
---------------------------------------------------
public void RunScript(string script)
{
try
{
if (!System.IO.File.Exists(@"E:\Source
\IronPython-2.0B5\Src\PyDemo\bin\Debug\demo.dll"))
{
_source =
_engine.CreateScriptSourceFromString(script,
Microsoft.Scripting.SourceCodeKind.Statements);
_binary = _source.Compile();
ScriptCode code =
HostingHelpers.GetScriptCode(_binary);
List<ScriptCode> codes = new List<ScriptCode>();
codes.Add(code);
ScriptCode.SaveToAssembly("demo.dll",
codes.ToArray());
_binary.Execute(_scope);
}
else
{
ScriptCode[] codes =
ScriptCode.LoadFromAssembly(HostingHelpers.GetDomainManager(_runtime),
System.Reflection.Assembly.LoadFile(@"E:\Source
\IronPython-2.0B5\Src\PyDemo\bin\Debug\demo.dll"));
if (codes != null && codes.Length >= 1)
{
OptimizedScriptCode optimizedCode =
(OptimizedScriptCode)codes[0];
Scope scope = optimizedCode.CreateScope();
this._mainForm.setScope(scope); //
SetObjectName "Button1" etc.
optimizedCode.Run(scope);
}
}
}
catch (System.Exception ex)
{
}
}
----------------------------------------------------------------------------
-----------------------------
As you can see, ScriptCode.SaveToAssembly was execute succesfully.
And ScriptCode.LoadFromAssembly successfully returned.
But when I got exception when I run it.
I got Microsoft.Scripting.Runtime.UnboundNameException
{"name 'Button1' is not defined"}
But I have set the object name to the scope. I don't know why.
2. If I use another ScriptScope _scope, e.g.
-------------------------------------
OptimizedScriptCode optimizedCode = (OptimizedScriptCode)codes[0];
optimizedCode.Run(HostingHelpers.GetScope(_scope));
--------------------------------------------------
I got System.NullReferenceException because code is null in the
following function of OptimizedScriptCode.cs
---------------------------------------------------
protected override object InvokeTarget(LambdaExpression code,
Scope scope) {
if (scope == _optimizedScope) {
return _optimizedTarget(scope, LanguageContext);
}
// new scope, compile unoptimized code and use that.
if (_unoptimizedTarget == null) {
// TODO: fix generated DLR ASTs - languages should
remove their usage
// of GlobalVariables and then this can go away.
code = new GlobalLookupRewriter().RewriteLambda(code);
_unoptimizedTarget =
code.Compile<DlrMainCallTarget>(SourceUnit.EmitDebugSymbols);
}
return _unoptimizedTarget(scope,
LanguageContext);
}
-------------------------------------------------------
3. If I modified the InvokeTarget function to
if (scope == _optimizedScope || code == null)
I got System.InvalidCastException.
Cann't convert Microsoft.Scripting.Runtime.SymbolDictionary to
Microsoft.Scripting.Runtime.GlobalsDictionary.
I don't know why this convertion wass needed.
Could anyone give a help?
Thanks.
Yongming
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