Reko.Scanning.Scanner.EnqueueUserGlobalData C# (CSharp) Method

        public void EnqueueUserGlobalData(Address addr, DataType dt)
        {
            if (scannedGlobalData.Contains(addr))
                return;
            scannedGlobalData.Add(addr);
            queue.Enqueue(PriorityGlobalData, new GlobalDataWorkItem(this, program, addr, dt));
        }

        public void Scanner_GlobalDataRecursiveStructs()
        {
            var bytes = new byte[] {
                0x17, 0x00, 0x21, 0x43, 0x00, 0x00, 0x21, 0x43,
                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            };
            Given_Program(Address.Ptr32(0x43210000), bytes);
            Given_Project();

            var sc = new Scanner(
                this.program,
                new ImportResolver(project, program, eventListener),
                this.sc
            );

            var ft = Given_Serialized_Signature(new SerializedSignature
            { 
                 ReturnValue = new Argument_v1 { Type = Real32() },
            });
            var str = new StructureType();
            var fields = new StructureField[] {
                new StructureField(0, new Pointer(ft,  4), "func"),
                new StructureField(4, new Pointer(str, 4), "next"),
            };
            str.Fields.AddRange(fields);

            sc.EnqueueUserGlobalData(Address.Ptr32(0x43210000), str);
            sc.ScanImage();

            var sExpSig =
@"Register real32 fn43210017()
// stackDelta: 4; fpuStackDelta: 0; fpuMaxParam: -1
";
            Assert.AreEqual(1, program.Procedures.Count);
            Assert.AreEqual(sExpSig, program.Procedures[Address.Ptr32(0x43210017)].Signature.ToString("fn43210017", FunctionType.EmitFlags.AllDetails));
        }