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Created attachment 3754 [details]
Source code to create a dynamic assembly that throws an error with debug info
The attached code creates a dynamic assembly and writes a method containing debug information.
.NET gave the following exception information:
MonoBug.exe!MakeExpression.ThrowError() Line 9 + 0x2e bytes C#
-> onlyModule.dll!MyDynamicType.MyMethod() Line 42 + 0x6 bytes Unknown
Expression expression) Line 47 + 0x49 bytes C#
MonoBug.exe!MainClass.Main() Line 6 + 0x8 bytes C#
Line 2 is the important one: It showed that the error had debug information of line 42.
Mono gives the following information instead:
at MyDynamicType.MyMethod () [0x00000] in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object,System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object parameters, System.Globalization.CultureInfo culture) [0x000d5] in /builddir/build/BUILD/mono-2.10.8/mcs/class/corlib/System.Reflection/MonoMethod.cs:226
The line number of the error is missing.
I can reproduce with Mono 188.8.131.526 (master/117468d740a)