[Mono-list] Generic class and mono_class_from_name

[mimi]

I embedded Mono runtime 3.12 in my QT c++ app on Os x 10.8.5 and try to get
generic class in my c++ app.

Case 1:

c#
namespace TestDictionary
{
    public class Class1
    {
        public Dictionary<string,object> DictionaryField;

        public static void Dump (Dictionary <string, object> dictionary)
        {
            Console.WriteLine("Dump called\n");
        }
        public static void Main()
        {
            Console.WriteLine("Class1 Main called!\n");
        }
    }
}

c++
            MonoClass* classDictionary = NULL;
            classDictionary = mono_class_from_name(image, "TestDictionary",
"Class1");

I compiled TestDictionary.exe and classDictionary is non-NULL.


Case 2:

c#
namespace TestDictionary
{
    public class Class1
    {
        public Dictionary<string,object> DictionaryField;

        public static void Dump (Dictionary <string, object> dictionary)
        {
            Console.WriteLine("Dump called\n");
        }
    }
}

namespace Playstkop.Toolbox
{
	public class ToolboxFacade
	{
              public static void Main()
              {
                  Class1 testClass1 = new Class1();
                  Console.WriteLine("ToolboxFacade Main called!!\n");
              }
	}
}

c++
            MonoClass* classDictionary = NULL;
            classDictionary = mono_class_from_name(image, "TestDictionary",
"Class1");

I compiled TestDictionary.dll and Playstkop.Toolbox.exe. classDictionary
returns NULL. I digged into mono_class_from_name and found that the value of
'name' is 0x0 instead of "Class1".

	Locals		
		assembly_idx	@0xffffffffffffffff	guint32
		buf	" \235§\013\001\000\000\000..."	char [1024]
		class	0x0	MonoClass *
		class at 1	0x0	MonoClass *
		class at 2	@0x10bca9f00	MonoClass
		cols	@0x0	guint32 [5]
		i	@0xffffffffffffffff	int
		idx	@0xffffffffffffffff	guint32
		image	@0x10487fe00	MonoImage
		impl	@0xffffffffffffffff	guint32
		len	@0xffffffffffffffff	int
		loaded_image	0x0	MonoImage *
		module	0x0	MonoImage *
		name	   0x0	char *
		name_space	"TestDictionary"	char *
		nested	0x0	char *
		nspace_table	0x0	GHashTable *
		pos	@0xffffffffffffffff	int
		res	@0xffffffffffffffff	gboolean
		t	0x0	MonoTableInfo *
		token	0	guint32

This is the Locals when 'mono_class_from_name' returns: 

	Locals		
		assembly_idx	@0xffffffffffffffff	guint32
		buf	" ݯ\013\001\000\000\000@ú\..."	char [1024]
		class	0x0	MonoClass *
		class at 1	0x0	MonoClass *
		class at 2	0x0	MonoClass *
		cols	@0x0	guint32 [5]
		i	@0xffffffffffffffff	int
		idx	@0xffffffffffffffff	guint32
		image	0x0	MonoImage *
		impl	@0xffffffffffffffff	guint32
		len	@0xffffffffffffffff	int
		loaded_image	0x0	MonoImage *
		module	0x0	MonoImage *
		name 	0x0	char *
		name_space	"TestDictionary"	char *
		nested	0x0	char *
		nspace_table	0x0	GHashTable *
		pos	@0xffffffffffffffff	int
		res	@0xffffffffffffffff	gboolean
		t	0x0	MonoTableInfo *
		token	0	guint32

I go back to Case 1 and trace the method 'mono_class_from_name'. The value
of 'name' is also 0x0 (Surprised!).

	Locals		
		assembly_idx	@0xffffffffffffffff	guint32
		buf	" ý§\013\001\000\000 at ..."	char [1024]
		class	0x0	MonoClass *
		class at 1	0x0	MonoClass *
		class at 2	@0x10bcaff00	MonoClass
		cols	@0x0	guint32 [5]
		i	@0xffffffffffffffff	int
		idx	@0xffffffffffffffff	guint32
		image	@0x1068a3c00	MonoImage
		impl	@0xffffffffffffffff	guint32
		len	@0xffffffffffffffff	int
		loaded_image	0x0	MonoImage *
		module	0x0	MonoImage *
		name	   0x0	char *
		name_space	"TestDictionary"	char *
		nested	0x0	char *
		nspace_table	0x0	GHashTable *
		pos	@0xffffffffffffffff	int
		res	@0xffffffffffffffff	gboolean
		t	0x0	MonoTableInfo *
		token	0	guint32

However, when 'mono_class_from_name' returns, Class1 is returned.

	Locals		
		assembly_idx	@0xffffffffffffffff	guint32
		buf	" \035\227\013\001\000\..."	char [1024]
		class	0x0	MonoClass *
		class at 1	0x0	MonoClass *
		class at 2	@0x10ac90e10	MonoClass
			blittable	167774213	guint:1
			byval_arg	@0x10ac90ed8	MonoType
			cast_class	@0x10ac90e10	MonoClass
			contextbound	7408128	guint:1
			delegate	28938	guint:1
			element_class	@0x10ac90e10	MonoClass
			enumtype	167774213	guint:1
			exception_type	'\0'	guint8
			ext	0x0	MonoClassExt *
			field	@0x10ac90e98	_MonoClass::<anonymous struct>
			fields	@0x10ac92090	MonoClassField
			fields_inited	113	guint:1
			flags	1048577	guint32
			gc_descr	(NSAtom *) gc_descr = 0x2000000000000001	void *
			gc_descr_inited	28938	guint:1
			generic_class	0x0	MonoGenericClass *
			generic_container	0x0	MonoGenericContainer *
			ghcimpl	7408128	guint:1
			has_cctor	28938	guint:1
			has_finalize	7408128	guint:1
			has_finalize_inited	113	guint:1
			has_references	28938	guint:1
			has_static_refs	28938	guint:1
			idepth	2	guint16
			image	@0x1048e0400	MonoImage
			init_pending	167774213	guint:1
			inited	167774213	guint:1
			instance_size	24	int
			interface_bitmap	'\0'	guint8
			interface_count	0	guint16
			interface_id	0	guint16
			interface_offsets_count	0	guint16
			interface_offsets_packed	0	guint16
			interfaces	0x0	MonoClass **
			interfaces_inited	113	guint:1
			interfaces_packed	0x0	MonoClass *
			is_com_object	28938	guint:1
			is_generic	113	guint:1
			is_inflated	113	guint:1
			marshal_info	0x0	MonoMarshalType *
			marshalbyref	7408128	guint:1
			max_interface_id	0	guint16
			method	@0x10ac90ea0	_MonoClass::<anonymous struct>
				count	3	guint32
				first	0	guint32
			methods	0x0	MonoMethod **
			min_align	'\8'	guint8
			name	  "Class1"	char *
			name_space	"TestDictionary"	char *
			nested_classes_inited	28938	guint:1
			nested_in	0x0	MonoClass *
			next_class_cache	0x0	MonoClass *
			no_special_static_fields	28938	guint:1
			packing_size	7408128	guint:4
			parent	@0x10ac66280	MonoClass
			rank	'\0'	guint8
			ref_info_handle	0	guint32
			runtime_info	@0x10ac92100	MonoClassRuntimeInfo
			setup_fields_called	113	guint:1
			simd_type	113	guint:1
			size_inited	167774213	guint:1
			sizes	@0x10ac90e90	_MonoClass::<anonymous union>
			supertypes	@0x10ac66280	MonoClass
			this_arg	@0x10ac90ec8	MonoType
			type_token	33554434	guint32
			unicode	167774213	guint:1
			valuetype	167774213	guint:1
			vtable	@0x1048d7818	MonoMethod
			vtable_size	4	int
			wastypebuilder	167774213	guint:1
		cols	@0x0	guint32 [5]
		i	@0xffffffffffffffff	int
		idx	@0xffffffffffffffff	guint32
		image	0x0	MonoImage *
		impl	@0xffffffffffffffff	guint32
		len	@0xffffffffffffffff	int
		loaded_image	0x0	MonoImage *
		module	0x0	MonoImage *
		name	0x0	char *
		name_space	"TestDictionary"	char *
		nested	0x0	char *
		nspace_table	0x0	GHashTable *
		pos	@0xffffffffffffffff	int
		res	@0xffffffffffffffff	gboolean
		t	0x0	MonoTableInfo *
		token	@0xffffffffffffffff	guint32

Here I did something wrong or understood wrong? Any advice helps. Thanks!



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