fx: support for registering callable functions with types

fx.reflection/include/fx/reflection/function.h

@@ -14,6 +14,7 @@ typedef enum fx_function_flags {
 	FX_FUNCTION_F_STATIC = 0x01u,
 	FX_FUNCTION_F_VIRTUAL = 0x02u,
 	FX_FUNCTION_F_VARARG = 0x04u,
+	FX_FUNCTION_F_CONSTRUCTOR = 0x08u,
 } fx_function_flags;
 
 typedef void (*fx_function_impl)();
@@ -25,6 +26,8 @@ FX_TYPE_CLASS_DECLARATION_END(fx_function)
 
 FX_API fx_type_id fx_function_get_type();
 
+FX_API const char *fx_function_get_name(const fx_function *func);
+
 FX_API fx_function *fx_function_create(
 	const char *name,
 	fx_function_flags flags,

fx.reflection/include/fx/reflection/type.h

@@ -2,6 +2,7 @@
 #define FX_REFLECTION_TYPE_H_
 
 #include <fx/macros.h>
+#include <fx/reflection/function.h>
 
 FX_DECLS_BEGIN;
 
@@ -17,6 +18,9 @@ FX_TYPE_CLASS_DECLARATION_END(fx_type)
 FX_API fx_type_id fx_type_get_type();
 
 FX_API const char *fx_type_get_name(const fx_type *ty);
+FX_API const fx_function *fx_type_get_function(
+	const fx_type *ty,
+	const char *name);
 
 FX_API const fx_type *fx_type_get_by_id(fx_type_id id);
 FX_API const fx_type *fx_type_get_by_name(const char *name);