Got it working! I didn't propery import the types of the additional local
variables, which is used in the catch. Thank you for your time!
Am Donnerstag, 13. März 2014 16:10:13 UTC+1 schrieb Daniel Wirtz:
>
> Hello everyone,
>
> I just started using Cecil and it's a really powerful tool. Though I have
> got an issue with importing exceptions from a try-catch-block properly. All
> the other types seem to work fine, but exceptions use to cause trouble.
>
> What I basically have is a chunk of IL from another assembly that throws
> an Excetion:
>
> IL_0000: nop
> IL_0001: nop
> IL_0002: ldstr "test"
> *IL_0007: newobj System.Void System.Exception::.ctor(System.String)*
> IL_000c: throw
> IL_000d: stloc.0
> ...
>
> I then export the instruction's operand, which is the
> Exception(String,String) constructor, and declaring type, which is
> System.Exception, through looking it up:
>
> MethodDefinition def = (inst.Operand as MethodReference).Resolve();
> if (def.IsConstructor) {
> TypeDefinition classDef = (inst.Operand as
> MethodReference).DeclaringType.Resolve();
> targetAssembly.MainModule.Import(classDef);
> MethodDefinition ctorDef = GetConstructor(classDef, def);
> newInst = proc.Create(inst.OpCode,
> targetAssembly.MainModule.Import(ctorDef));
> }
>
> This works so far but when I call targetAssembly.Write(...) it raises the
> following exception:
>
> Error: System.ArgumentException: Member 'System.Exception' is declared in
> another module and needs to be imported
> at Mono.Cecil.MetadataBuilder.LookupToken(IMetadataTokenProvider
> provider) in Mono.Cecil\AssemblyWriter.cs:line 1967.
>
> This doesn't seem to happen with anything else but exceptions. I'd be
> really happy for any ideas on what I might do wrong :-)
>
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