public void GenericCallUtilityTestsSimplePasses()
{
var s = new Sample();
{
var mi = s.GetType().GetMethod("Set");
var action = GenericInvokeCallFactory.OpenAction <Sample, int>(mi);
action(s, 1);
Assert.AreEqual(1, s.Value);
}
{
var mi = s.GetType().GetMethod("Get");
var func = GenericInvokeCallFactory.OpenFunc <Sample, int, int>(mi);
/*var value =*/ func(s, 1);
Assert.AreEqual(1, s.Value);
}
{
var mi = s.GetType().GetMethod("Set");
var action = GenericExpressionCallFactory.Create <Sample, int>(mi);
action(s, 2);
Assert.AreEqual(2, s.Value);
}
}
static Func <ListTreeNode <T>, U> GetCreator()
{
var t = typeof(U);
if (t.IsArray)
{
var mi = typeof(GenericConstructor <T, U>).GetMethod("ArrayCreator",
BindingFlags.NonPublic | BindingFlags.Static);
var g = mi.MakeGenericMethod(t.GetElementType());
return(GenericInvokeCallFactory.StaticFunc <ListTreeNode <T>, U>(g));
}
{
return(_s =>
{
return Activator.CreateInstance <U>();
});
}
}
static Action <IFormatter, T> GetSerializer()
{
var t = typeof(T);
// object
if (typeof(T) == typeof(object) && t.GetType() != typeof(object))
{
var mi = FormatterExtensionsSerializer.GetMethod("SerializeObject");
return(GenericInvokeCallFactory.StaticAction <IFormatter, T>(mi));
}
try
{
// primitive
var mi = typeof(IFormatter).GetMethod("Value", new Type[] { t });
if (mi != null)
{
return(GenericInvokeCallFactory.OpenAction <IFormatter, T>(mi));
}
}
catch (AmbiguousMatchException)
{
// do nothing
}
{
// dictionary
var idictionary = t.GetInterfaces().FirstOrDefault(x =>
x.IsGenericType &&
x.GetGenericTypeDefinition() == typeof(IDictionary <,>) &&
x.GetGenericArguments()[0] == typeof(string)
);
if (idictionary != null)
{
var mi = FormatterExtensionsSerializer.GetMethod("SerializeDictionary");
return(GenericInvokeCallFactory.StaticAction <IFormatter, T>(mi));
}
}
{
// object[]
if (t == typeof(object[]))
{
var mi = FormatterExtensionsSerializer.GetMethod("SerializeObjectArray");
return(GenericInvokeCallFactory.StaticAction <IFormatter, T>(mi));
}
}
{
// list
var ienumerable = t.GetInterfaces().FirstOrDefault(x =>
x.IsGenericType &&
x.GetGenericTypeDefinition() == typeof(IEnumerable <>)
);
if (ienumerable != null)
{
var g = FormatterExtensionsSerializer.GetMethod("SerializeArray");
var mi = g.MakeGenericMethod(ienumerable.GetGenericArguments());
return(GenericInvokeCallFactory.StaticAction <IFormatter, T>(mi));
}
}
{
// nullable
if (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(Nullable <>))
{
var g = FormatterExtensionsSerializer.GetMethod(nameof(FormatterExtensionsSerializer.SerializeNullable));
var mi = g.MakeGenericMethod(t.GetGenericArguments());
return(GenericInvokeCallFactory.StaticAction <IFormatter, T>(mi));
}
}
{
if (t.IsEnum)
{
return((f, src) =>
{
//f.Value(src.ToString());
f.Value(GenericCast <T, Int32> .Cast(src));
});
}
}
{
// reflection
var fields = t.GetFields(BindingFlags.Instance | BindingFlags.Public);
var fieldSerializers = fields.Select(x => new FieldSerializer(x)).ToArray();
return((f, src) =>
{
var count = fieldSerializers.Count(x => x.IsValid(src));
f.BeginMap(count);
foreach (var serializer in fieldSerializers)
{
serializer.Serialize(f);
}
f.EndMap();
});
}
}
static Func <ListTreeNode <T>, U> GetDeserializer()
{
// primitive
{
var mi = typeof(T).GetMethods()
.Where(x => x.Name.StartsWith("Get"))
.FirstOrDefault(IsPrimitiveDeserializer)
;
if (mi != null)
{
var getter = GenericInvokeCallFactory.OpenFunc <T, U>(mi);
return(s => getter(s.Value));
}
}
var target = typeof(U);
if (target.IsArray)
{
var mi = typeof(GenericDeserializer <T, U>).GetMethod("GenericArrayDeserializer",
BindingFlags.Static | BindingFlags.Public);
var g = mi.MakeGenericMethod(target.GetElementType());
return(GenericInvokeCallFactory.StaticFunc <ListTreeNode <T>, U>(g));
}
if (target.IsGenericType)
{
if (target.GetGenericTypeDefinition() == typeof(List <>))
{
var mi = typeof(GenericDeserializer <T, U>).GetMethod("GenericListDeserializer",
BindingFlags.Static | BindingFlags.Public);
var g = mi.MakeGenericMethod(target.GetGenericArguments());
return(GenericInvokeCallFactory.StaticFunc <ListTreeNode <T>, U>(g));
}
if (target == typeof(Dictionary <string, object>))
{
var mi = typeof(GenericDeserializer <T, U>).GetMethod("DefaultDictionaryDeserializer",
BindingFlags.Static | BindingFlags.Public);
return(GenericInvokeCallFactory.StaticFunc <ListTreeNode <T>, U>(mi));
}
else
if (target.GetGenericTypeDefinition() == typeof(Dictionary <,>) &&
target.GetGenericArguments()[0] == typeof(string))
{
var mi = typeof(GenericDeserializer <T, U>).GetMethod("DictionaryDeserializer",
BindingFlags.Static | BindingFlags.Public);
var g = mi.MakeGenericMethod(target.GetGenericArguments()[1]);
return(GenericInvokeCallFactory.StaticFunc <ListTreeNode <T>, U>(g));
}
if (target.GetGenericTypeDefinition() == typeof(Nullable <>))
{
var mi = typeof(GenericDeserializer <T, U>).GetMethod("GenericNullableDeserializer",
BindingFlags.Static | BindingFlags.Public);
var g = mi.MakeGenericMethod(target.GetGenericArguments());
return(GenericInvokeCallFactory.StaticFunc <ListTreeNode <T>, U>(g));
}
}
if (target.IsEnum)
{
var value = Expression.Parameter(typeof(int), "value");
var cast = Expression.Convert(value, target);
var func = Expression.Lambda(cast, value);
var compiled = (Func <int, U>)func.Compile();
return(s =>
{
if (s.IsString())
{
return (U)Enum.Parse(typeof(U), s.GetString(), true);
}
else
{
return compiled(s.GetInt32());
}
});
}
// reflection
{
var fields = target.GetFields(BindingFlags.Instance | BindingFlags.Public);
var fieldDeserializers = fields.ToDictionary(x => Utf8String.From(x.Name), x =>
{
var mi = typeof(GenericDeserializer <T, U>).GetMethod("GetFieldDeserializer",
BindingFlags.Static | BindingFlags.NonPublic);
var g = mi.MakeGenericMethod(x.FieldType);
return((FieldSetter)g.Invoke(null, new object[] { x }));
});
return(s =>
{
if (!s.IsMap())
{
throw new ArgumentException(s.Value.ValueType.ToString());
}
var t = (object)default(GenericConstructor <T, U>).Create(s);
foreach (var kv in s.ObjectItems())
{
FieldSetter setter;
if (fieldDeserializers.TryGetValue(kv.Key.GetUtf8String(), out setter))
{
setter(kv.Value, t);
}
}
return (U)t;
});
}
}
