public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa) { if (a.Target == AttributeTargets.ReturnValue) { if (return_attributes == null) return_attributes = new ReturnParameter (this, MethodBuilder, Location); return_attributes.ApplyAttributeBuilder (a, ctor, cdata, pa); return; } if (a.Type == pa.MethodImpl) { if ((ModFlags & Modifiers.ASYNC) != 0 && (a.GetMethodImplOptions () & MethodImplOptions.Synchronized) != 0) { Report.Error (4015, a.Location, "`{0}': Async methods cannot use `MethodImplOptions.Synchronized'", GetSignatureForError ()); } is_external_implementation = a.IsInternalCall (); } else if (a.Type == pa.DllImport) { const Modifiers extern_static = Modifiers.EXTERN | Modifiers.STATIC; if ((ModFlags & extern_static) != extern_static) { Report.Error (601, a.Location, "The DllImport attribute must be specified on a method marked `static' and `extern'"); } if (MemberName.IsGeneric || Parent.IsGenericOrParentIsGeneric) { Report.Error (7042, a.Location, "The DllImport attribute cannot be applied to a method that is generic or contained in a generic type"); } is_external_implementation = true; } if (a.IsValidSecurityAttribute ()) { a.ExtractSecurityPermissionSet (ctor, ref declarative_security); return; } if (MethodBuilder != null) MethodBuilder.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), cdata); }