Class DeclarationAttribute

The value depends on the kind of advice and on the type of the parameter:

• In a method boundary advice and in OnMethodInvokeAdvice, the value is the MethodBase of the target method. The parameter can be of type MethodBase or of a base type, of type MethodInfo when no target is a constructor, or of type ConstructorInfo when every target is a constructor. For an async method or an iterator, the value is the method declared in source code, not the MoveNext method of the state machine. For a generic method or a method of a generic type, the value is the method of the generic instance that is executing.
• In a location advice, the value is the LocationInfo of the target field or property when the parameter can receive it, and its PropertyInfo otherwise. The weaver encapsulates an intercepted field into a property, so a field is a property at run time, and a parameter of type FieldInfo is not accepted.
• In OnInstanceConstructedAdvice, the value is the Type of the target type.

The parameter cannot be ref, in or out. A parameter of type MethodInfo on a constructor, or of type ConstructorInfo on a method, causes an error.

The reflection object is not looked up on each call: it is stored in a static field, except for a generic method or a method of a generic type, which is looked up on each call as Method is.