I wrote:
> I tried to use SetCustomAttribute to emit a
> MarshalAsAttribute, but that hangs (!)
>
> I looked at the Rotor code and SetCustomAttribute actually has support
> for pseudo-custom attributes, so in theory it should work,
> but it looks like there is a bug somewhere in the runtime.
I don't know if this is any use to you, but I just tried it on Whidbey,
and there it does work.
Here is the code I used:
ConstructorInfo ci = typeof(MarshalAsAttribute).GetConstructor(new
Type[] { typeof(UnmanagedType) });
CustomAttributeBuilder cb = new CustomAttributeBuilder(ci, new object[]
{ UnmanagedType.LPArray }, new PropertyInfo[0], new object[0], new
FieldInfo[] { typeof(MarshalAsAttribute).GetField("SizeParamIndex") },
new object[] { (short)0 });
paraBld.SetCustomAttribute(cb);
This yields:
.method public abstract virtual instance void
SetArray([in] int32 count,
[in] int32[] marshal([ + 0]) 'array') cil managed
So the good news is that they fixed the bug, the bad news is that you
have to wait a while before the fix becomes available :-(
Regards,
Jeroen
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