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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