public DataToString(Type type, IFormatProvider[] providers, char[] delimiters, Func <Type, MemberInfo, int> membersOrder = null)
{
var typeCount = DataType.IsPrimitiveType(type) ? 1 : DataTypeUtils.GetPublicMembers(type, membersOrder).Count();
if (providers.Length != typeCount)
{
throw new ArgumentException("providers.Length != dataType.Length");
}
Providers = providers;
Delimiters = delimiters;
Type = type;
MembersOrder = membersOrder;
LambdaFromString = CreateFromStringMethod();
fromString = LambdaFromString.Compile();
LambdaToString = CreateToStringMethod();
toString = LambdaToString.Compile();
}
public static CompareOption[] GetDefaultCompareOptions(Type type, Func <Type, MemberInfo, int> memberOrder = null)
{
if (DataType.IsPrimitiveType(type))
{
return new CompareOption[] { GetDefaultCompareOption(type) }
}
;
if (type == typeof(Guid))
{
return new CompareOption[] { GetDefaultCompareOption(type) }
}
;
if (type.IsClass || type.IsStruct())
{
return(DataTypeUtils.GetPublicMembers(type, memberOrder).Select(x => GetDefaultCompareOption(x.GetPropertyOrFieldType())).ToArray());
}
throw new NotSupportedException(type.ToString());
}
public ValueToObjects(Func <Type, MemberInfo, int> membersOrder = null)
{
if (!DataType.IsPrimitiveType(typeof(T)) && !typeof(T).HasDefaultConstructor())
{
throw new NotSupportedException("No default constructor.");
}
bool isSupported = DataTypeUtils.IsAllPrimitive(typeof(T));
if (!isSupported)
{
throw new NotSupportedException("Not all types are primitive.");
}
Type = typeof(T);
MembersOrder = membersOrder;
LambdaFromObjects = CreateFromObjectsMethod();
fromObjects = LambdaFromObjects.Compile();
LambdaToObjects = CreateToObjectsMethod();
toObjects = LambdaToObjects.Compile();
}
public static Expression CreateEqualsBody(Expression x, Expression y, CompareOption[] compareOptions, Func <Type, MemberInfo, int> membersOrder)
{
var type = x.Type;
var exitPoint = Expression.Label(typeof(bool));
if (DataType.IsPrimitiveType(type) || type == typeof(Guid))
{
return(EqualityComparerHelper.GetEqualsCommand(x, y, compareOptions[0], exitPoint, true));
}
else
{
List <Expression> list = new List <Expression>();
int i = 0;
int count = DataTypeUtils.GetPublicMembers(type, membersOrder).Count();
foreach (var member in DataTypeUtils.GetPublicMembers(type, membersOrder))
{
list.Add(GetEqualsCommand(Expression.PropertyOrField(x, member.Name), Expression.PropertyOrField(y, member.Name), compareOptions[i++], exitPoint, i == count));
}
return(Expression.Block(typeof(bool), list));
}
}
public static bool CheckCompatible(Type type1, Type type2, HashSet <Type> cycleCheck, Func <Type, MemberInfo, int> membersOrder1 = null, Func <Type, MemberInfo, int> membersOrder2 = null)
{
if (type1 == typeof(Guid) || type1 == typeof(byte[]))
{
return(type2 == typeof(Guid) || type2 == typeof(byte[]));
}
if (type1.IsEnum || type2.IsEnum)
{
return((type1.IsEnum && type2.IsEnum) || (IsIntegerType(type1) || IsIntegerType(type2)));
}
if (DataType.IsPrimitiveType(type1))
{
return((type1 == type2) || (IsNumberType(type1) && IsNumberType(type2)));
}
if (type1.IsArray)
{
return(CheckCompatible(type1.GetElementType(), type2.GetElementType(), cycleCheck, membersOrder1, membersOrder2));
}
if (type1.IsList())
{
return(CheckCompatible(type1.GetGenericArguments()[0], type2.GetGenericArguments()[0], cycleCheck, membersOrder1, membersOrder2));
}
if (type1.IsDictionary())
{
return(CheckCompatible(type1.GetGenericArguments()[0], type2.GetGenericArguments()[0], cycleCheck, membersOrder1, membersOrder2) && CheckCompatible(type1.GetGenericArguments()[1], type2.GetGenericArguments()[1], cycleCheck, membersOrder1, membersOrder2));
}
if (type1.IsClass || type1.IsStruct())
{
List <Type> type1Slotes = new List <Type>();
List <Type> type2Slotes = new List <Type>();
if (type1.IsNullable())
{
type1Slotes.Add(type1.GetGenericArguments()[0]);
}
if (type2.IsNullable())
{
type2Slotes.Add(type2.GetGenericArguments()[0]);
}
if (type1.IsKeyValuePair())
{
type1Slotes.Add(type1.GetGenericArguments()[0]);
type1Slotes.Add(type1.GetGenericArguments()[1]);
}
if (type2.IsKeyValuePair())
{
type2Slotes.Add(type2.GetGenericArguments()[0]);
type2Slotes.Add(type2.GetGenericArguments()[1]);
}
foreach (var slote in DataTypeUtils.GetPublicMembers(type1, membersOrder1))
{
type1Slotes.Add(slote.GetPropertyOrFieldType());
}
foreach (var slote in DataTypeUtils.GetPublicMembers(type2, membersOrder2))
{
type2Slotes.Add(slote.GetPropertyOrFieldType());
}
if (type1Slotes.Count != type2Slotes.Count)
{
return(false);
}
for (int i = 0; i < type1Slotes.Count; i++)
{
if (cycleCheck.Contains(type1Slotes[i]))
{
throw new NotSupportedException(String.Format("Type {0} has cycle declaration.", type1Slotes[i]));
}
cycleCheck.Add(type1Slotes[i]);
if (!CheckCompatible(type1Slotes[i], type2Slotes[i], cycleCheck, membersOrder1, membersOrder2))
{
return(false);
}
cycleCheck.Remove(type1Slotes[i]);
}
return(true);
}
throw new NotSupportedException(type2.ToString());
}
public static Expression BuildBody(Expression Value1, Expression Value2, Func <Type, MemberInfo, int> membersOrder1, Func <Type, MemberInfo, int> membersOrder2)
{
var type1 = Value1.Type;
var type2 = Value2.Type;
if (type1 == typeof(Guid) || type2 == typeof(Guid))
{
return(Expression.Assign(Value1,
type1 == typeof(Guid) ?
Value2.Type == typeof(Guid) ? Value2 : Expression.New(type1.GetConstructor(new Type[] { typeof(byte[]) }), Value2) :
Expression.Call(Value2, type2.GetMethod("ToByteArray"))
));
}
if (type1.IsEnum || type2.IsEnum)
{
return(Expression.Assign(Value1, Expression.Convert(Value2, type1)));
}
if (IsEqualsTypes(type1, type2))
{
return(Expression.Assign(Value1, Value2));
}
if (IsNumberType(type1) && IsNumberType(type2))
{
return(Expression.Assign(Value1, Expression.Convert(Value2, type1)));
}
if (type1.IsKeyValuePair())
{
var key = Expression.Variable(type1.GetGenericArguments()[0]);
var value = Expression.Variable(type1.GetGenericArguments()[1]);
return(Expression.Assign(Value1,
Expression.New((typeof(KeyValuePair <,>).MakeGenericType(key.Type, value.Type)).GetConstructor(new Type[] { key.Type, value.Type }),
Expression.Block(key.Type,
new ParameterExpression[] { key },
BuildBody(key, Expression.PropertyOrField(Value2, type2.IsKeyValuePair() ? "Key" : DataTypeUtils.GetPublicMembers(Value2.Type, membersOrder2).First().Name), membersOrder1, membersOrder2),
Expression.Label(Expression.Label(key.Type), key)),
Expression.Block(value.Type,
new ParameterExpression[] { value },
BuildBody(value, Expression.PropertyOrField(Value2, type2.IsKeyValuePair() ? "Value" : DataTypeUtils.GetPublicMembers(Value2.Type, membersOrder2).Last().Name), membersOrder1, membersOrder2),
Expression.Label(Expression.Label(value.Type), value))
)));
}
if (type1.IsList() || type1.IsArray)
{
var element = Expression.Variable(type1.IsArray ? type1.GetElementType() : type1.GetGenericArguments()[0]);
var block = Expression.Block(new ParameterExpression[] { element },
Expression.Assign(Value1, Expression.New(Value1.Type.GetConstructor(new Type[] { typeof(int) }), Expression.PropertyOrField(Value2, type2.IsList() ? "Count" : "Length"))),
Value2.For(i =>
{
return(type2.IsList() ?
(Expression)Expression.Call(Value1, type1.GetMethod("Add"), BuildBody(element, Value2.This(i), membersOrder1, membersOrder2)) :
Expression.Assign(Expression.ArrayAccess(Value1, i), BuildBody(element, Expression.ArrayAccess(Value2, i), membersOrder1, membersOrder2)));
},
Expression.Label())
);
return(Expression.IfThenElse(Expression.NotEqual(Value2, Expression.Constant(null)),
block,
Expression.Assign(Value1, Expression.Constant(null, Value1.Type))));
}
if (type1.IsDictionary())
{
if (!DataType.IsPrimitiveType(type1.GetGenericArguments()[0]) && type1.GetGenericArguments()[0] == typeof(Guid))
{
throw new NotSupportedException(String.Format("Dictionary<{0}, TValue>", type1.GetGenericArguments()[0]));
}
var key = Expression.Variable(type1.GetGenericArguments()[0]);
var value = Expression.Variable(type1.GetGenericArguments()[1]);
var block = Expression.Block(new ParameterExpression[] { key, value },
Expression.Assign(Value1, type2.GetGenericArguments()[0] == typeof(byte[]) ?
Expression.New(type1.GetConstructor(new Type[] { typeof(int), typeof(IEqualityComparer <byte[]>) }), Expression.PropertyOrField(Value2, "Count"), Expression.Field(null, typeof(BigEndianByteArrayEqualityComparer), "Instance")) :
Expression.New(type1.GetConstructor(new Type[] { typeof(int) }), Expression.PropertyOrField(Value2, "Count"))),
Value2.ForEach(current =>
Expression.Call(Value1, type1.GetMethod("Add"),
BuildBody(key, Expression.Property(current, "Key"), membersOrder1, membersOrder2),
BuildBody(value, Expression.Property(current, "Value"), membersOrder1, membersOrder2)),
Expression.Label()
));
return(Expression.IfThenElse(Expression.NotEqual(Value2, Expression.Constant(null)),
block,
Expression.Assign(Value1, Expression.Constant(null, Value1.Type))));
}
if (type1.IsNullable())
{
var data1Var = Expression.Variable(Value1.Type);
var data2Var = Expression.Variable(Value2.Type);
List <Expression> list = new List <Expression>();
var constructParam = Expression.PropertyOrField(data2Var, type2.IsNullable() ? "Value" : DataTypeUtils.GetPublicMembers(type2, membersOrder2).First().Name);
var block = Expression.Block(new ParameterExpression[] { data1Var, data2Var },
Expression.Assign(data2Var, Value2),
Expression.Assign(data1Var, Expression.New(
type1.GetConstructor(new Type[] { type1.GetGenericArguments()[0] }),
constructParam.GetType() == type1.GetGenericArguments()[0] ?
(Expression)constructParam :
(Expression)Expression.Convert(constructParam, type1.GetGenericArguments()[0]))),
Expression.Assign(Value1, data1Var)
);
return(Expression.IfThenElse(Expression.NotEqual(Value2, Expression.Constant(null, type2)),
block,
Expression.Assign(Value1, Expression.Constant(null, type1))
));
}
if (type1.IsClass || type1.IsStruct())
{
var data1Var = Expression.Variable(Value1.Type);
var data2Var = Expression.Variable(Value2.Type);
List <Expression> list = new List <Expression>();
list.Add(Expression.Assign(data1Var, Expression.New(data1Var.Type)));
List <MemberInfo> members1 = DataTypeUtils.GetPublicMembers(Value1.Type, membersOrder1).ToList();
List <MemberInfo> members2 = new List <MemberInfo>();
if (type2.IsKeyValuePair() || type2.IsNullable())
{
if (type2.IsKeyValuePair())
{
members2.Add(type2.GetMember("Key")[0]);
}
members2.Add(type2.GetMember("Value")[0]);
}
else
{
members2 = DataTypeUtils.GetPublicMembers(Value2.Type, membersOrder2).ToList();
}
for (int i = 0; i < members1.Count; i++)
{
list.Add(BuildBody(Expression.PropertyOrField(data1Var, members1[i].Name), Expression.PropertyOrField(data2Var, members2[i].Name), membersOrder1, membersOrder2));
}
list.Add(Expression.Assign(Value1, data1Var));
if ((type1.IsStruct() || type2.IsStruct()) && !type2.IsNullable())
{
list.Insert(0, Expression.Assign(data2Var, Value2));
list.Add(Expression.Label(Expression.Label(Value1.Type), Value1));
return(Expression.Block(type1, new ParameterExpression[] { data1Var, data2Var }, list));
}
return(Expression.Block(type1, new ParameterExpression[] { data2Var },
Expression.Assign(data2Var, Value2),
Expression.IfThenElse(Expression.NotEqual(data2Var, Expression.Constant(null)),
Expression.Block(new ParameterExpression[] { data1Var }, list),
Expression.Assign(Value1, Expression.Constant(null, type1))),
Expression.Label(Expression.Label(type1), Value1)
));
}
throw new NotSupportedException(type1.ToString());
}
internal static Expression CreateStoreBody(Type type, IIndexerPersist[] persists, Expression writer, Expression callValues, ParameterExpression idx, Expression count, Func <Type, MemberInfo, int> membersOrder)
{
List <Expression> list = new List <Expression>();
int itemsCount = DataTypeUtils.GetPublicMembers(type, membersOrder).Count();
//Create body for single item.
if (itemsCount <= 1)
{
var persist = Expression.Convert(Expression.Constant(persists[0]), persists[0].GetType());
var ms = Expression.Variable(typeof(MemoryStream), "ms");
var func = Expression.Lambda(itemsCount == 0 ? callValues : Expression.PropertyOrField(callValues, DataTypeUtils.GetPublicMembers(type, membersOrder).First().Name), idx);
return(ms.Using(Expression.Block(
Expression.Assign(ms, Expression.New(typeof(MemoryStream).GetConstructor(new Type[] { }))),
Expression.Call(persist, persist.Type.GetMethod("Store"), Expression.New(typeof(BinaryWriter).GetConstructor(new Type[] { typeof(MemoryStream) }), ms), func, count),
Expression.Call(typeof(CountCompression).GetMethod("Serialize"), writer, Expression.ConvertChecked(Expression.Property(ms, "Length"), typeof(ulong))),
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(byte[]), typeof(int), typeof(int) }),
Expression.Call(ms, typeof(MemoryStream).GetMethod("GetBuffer")), Expression.Constant(0), Expression.Convert(Expression.Property(ms, "Length"), typeof(int)))
)));
}
else
{
var streams = Expression.Variable(typeof(MemoryStream[]), "streams");
var actions = Expression.Variable(typeof(Action[]), "actions");
list.Add(Expression.Assign(streams, Expression.New(typeof(MemoryStream[]).GetConstructor(new Type[] { typeof(int) }), Expression.Constant(itemsCount, typeof(int)))));
list.Add(Expression.Assign(actions, Expression.New(typeof(Action[]).GetConstructor(new Type[] { typeof(int) }), Expression.Constant(itemsCount, typeof(int)))));
int counter = 0;
foreach (var member in DataTypeUtils.GetPublicMembers(type, membersOrder))
{
var persist = Expression.Convert(Expression.Constant(persists[counter]), persists[counter].GetType());
var ms = Expression.ArrayAccess(streams, Expression.Constant(counter, typeof(int)));
var func = Expression.Lambda(Expression.PropertyOrField(callValues, member.Name), idx);
var writerNew = Expression.New(typeof(BinaryWriter).GetConstructor(new Type[] { typeof(MemoryStream) }), ms);
var action = Expression.Lambda(Expression.Block(
Expression.Assign(ms, Expression.New(typeof(MemoryStream).GetConstructor(new Type[] { }))),
Expression.Call(persist, persist.Type.GetMethod("Store"), writerNew, func, count)
));
list.Add(Expression.Assign(Expression.ArrayAccess(actions, Expression.Constant(counter)), action));
counter++;
}
list.Add(Expression.Call(typeof(Parallel).GetMethod("Invoke", new Type[] { typeof(Action[]) }), actions));
list.Add(streams.For(
(i) =>
{
var stream = Expression.Variable(typeof(MemoryStream), "stream");
return(stream.Using(Expression.Block(
Expression.Assign(stream, Expression.ArrayAccess(streams, i)),
Expression.Call(typeof(CountCompression).GetMethod("Serialize"), writer, Expression.ConvertChecked(Expression.Property(stream, "Length"), typeof(ulong))),
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(byte[]), typeof(int), typeof(int) }),
Expression.Call(stream, typeof(MemoryStream).GetMethod("GetBuffer")), Expression.Constant(0), Expression.Convert(Expression.Property(stream, "Length"), typeof(int)))
)));
},
Expression.Label()
));
return(Expression.Block(new ParameterExpression[] { actions, streams }, list));
}
}
private static Expression BuildRead(Expression reader, Type itemType, Func <Type, MemberInfo, int> membersOrder, AllowNull allowNull, bool isTop)
{
bool canBeNull = allowNull == AllowNull.All || (allowNull == AllowNull.AllButTop && !isTop);
if (itemType == typeof(Guid))
{
return(Expression.New(itemType.GetConstructor(new Type[] { typeof(byte[]) }), GetReadCommand(reader, typeof(byte[]), canBeNull)));
}
if (itemType.IsEnum)
{
return(Expression.Convert(GetReadCommand(reader, itemType.GetEnumUnderlyingType(), canBeNull), itemType));
}
if (DataType.IsPrimitiveType(itemType))
{
return(GetReadCommand(reader, itemType, canBeNull));
}
if (itemType.IsKeyValuePair())
{
var newKeyValuePair = Expression.New(
itemType.GetConstructor(new Type[] { itemType.GetGenericArguments()[0], itemType.GetGenericArguments()[1] }),
BuildRead(reader, itemType.GetGenericArguments()[0], membersOrder, allowNull, false), BuildRead(reader, itemType.GetGenericArguments()[1], membersOrder, allowNull, false)
);
if (canBeNull)
{
return(Expression.Block(Expression.Call(reader, typeof(BinaryReader).GetMethod("ReadBoolean")), newKeyValuePair));
}
return(newKeyValuePair);
}
if (itemType.IsArray || itemType.IsList() || itemType.IsDictionary())
{
var field = Expression.Variable(itemType);
var lenght = Expression.Variable(typeof(int));
var block = Expression.Block(
Expression.Assign(lenght, Expression.Convert(Expression.Call(typeof(CountCompression).GetMethod("Deserialize"), reader), typeof(int))),
itemType.IsDictionary() && itemType.GetGenericArguments()[0] == typeof(byte[]) ?
Expression.Assign(field, Expression.New(field.Type.GetConstructor(new Type[] { typeof(int), typeof(IEqualityComparer <byte[]>) }), lenght, Expression.Field(null, typeof(BigEndianByteArrayEqualityComparer), "Instance"))) :
Expression.Assign(field, Expression.New(field.Type.GetConstructor(new Type[] { typeof(int) }), lenght)),
field.For(i =>
{
if (itemType.IsArray)
{
return(Expression.Assign(Expression.ArrayAccess(field, i), BuildRead(reader, itemType.GetElementType(), membersOrder, allowNull, false)));
}
else if (itemType.IsList())
{
return(Expression.Call(field, field.Type.GetMethod("Add"), BuildRead(reader, itemType.GetGenericArguments()[0], membersOrder, allowNull, false)));
}
else //if (dataType.IsDictionary)
{
return(Expression.Call(field, field.Type.GetMethod("Add"),
BuildRead(reader, itemType.GetGenericArguments()[0], membersOrder, allowNull, false),
BuildRead(reader, itemType.GetGenericArguments()[1], membersOrder, allowNull, false)
));
}
},
Expression.Label(), lenght)
);
if (canBeNull)
{
return(Expression.Block(field.Type, new ParameterExpression[] { field, lenght },
Expression.IfThenElse(Expression.Call(reader, typeof(BinaryReader).GetMethod("ReadBoolean")),
block,
Expression.Assign(field, Expression.Constant(null, field.Type))),
Expression.Label(Expression.Label(field.Type), field)));
}
return(Expression.Block(field.Type, new ParameterExpression[] { field, lenght },
block,
Expression.Label(Expression.Label(field.Type), field)));
}
if (itemType.IsNullable())
{
return(Expression.Condition(Expression.Call(reader, typeof(BinaryReader).GetMethod("ReadBoolean")),
Expression.New(itemType.GetConstructor(new Type[] { itemType.GetGenericArguments()[0] }), BuildRead(reader, itemType.GetGenericArguments()[0], membersOrder, allowNull, false)),
Expression.Constant(null, itemType)));
}
if (itemType.IsClass || itemType.IsStruct())
{
var item = Expression.Variable(itemType);
List <Expression> list = new List <Expression>();
list.Add(Expression.Assign(item, Expression.New(item.Type)));
foreach (var member in DataTypeUtils.GetPublicMembers(itemType, membersOrder))
{
list.Add(Expression.Assign(Expression.PropertyOrField(item, member.Name), BuildRead(reader, member.GetPropertyOrFieldType(), membersOrder, allowNull, false)));
}
if (itemType.IsStruct())
{
if (canBeNull)
{
list.Insert(0, Expression.Call(reader, typeof(BinaryReader).GetMethod("ReadBoolean")));
}
list.Add(Expression.Label(Expression.Label(item.Type), item));
return(Expression.Block(item.Type, new ParameterExpression[] { item }, list));
}
return(Expression.Block(itemType, new ParameterExpression[] { item },
Expression.IfThenElse(Expression.Call(reader, typeof(BinaryReader).GetMethod("ReadBoolean")),
Expression.Block(list),
Expression.Assign(item, Expression.Constant(null, itemType))),
Expression.Label(Expression.Label(item.Type), item)));
}
throw new ArgumentException(itemType.ToString());
}
private static Expression BuildWrite(Expression item, Expression writer, Func <Type, MemberInfo, int> membersOrder, AllowNull allowNull, bool isTop)
{
var type = item.Type;
bool canBeNull = allowNull == AllowNull.All || (allowNull == AllowNull.AllButTop && !isTop);
if (type == typeof(Guid))
{
return(GetWriteCommand(writer, Expression.Call(item, type.GetMethod("ToByteArray")), canBeNull));
}
if (type.IsEnum)
{
return(GetWriteCommand(writer, Expression.Convert(item, item.Type.GetEnumUnderlyingType()), canBeNull));
}
if (DataType.IsPrimitiveType(type))
{
return(GetWriteCommand(writer, item, canBeNull));
}
if (type.IsKeyValuePair())
{
if (!canBeNull)
{
return(Expression.Block(
BuildWrite(Expression.PropertyOrField(item, "Key"), writer, membersOrder, allowNull, false),
BuildWrite(Expression.PropertyOrField(item, "Value"), writer, membersOrder, allowNull, false)
));
}
return(Expression.Block(
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.Constant(true)),
BuildWrite(Expression.PropertyOrField(item, "Key"), writer, membersOrder, allowNull, false),
BuildWrite(Expression.PropertyOrField(item, "Value"), writer, membersOrder, allowNull, false)
));
}
if (type.IsArray || type.IsList())
{
if (!canBeNull)
{
return(Expression.Block(Expression.Call(typeof(CountCompression).GetMethod("Serialize"), writer, Expression.Convert(type.IsArray ? (Expression)Expression.ArrayLength(item) : Expression.Property(item, "Count"), typeof(ulong))),
item.For(i => BuildWrite(type.IsArray ? Expression.ArrayAccess(item, i) : item.This(i), writer, membersOrder, allowNull, false), Expression.Label())
));
}
return(Expression.IfThenElse(Expression.NotEqual(item, Expression.Constant(null)),
Expression.Block(
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.Constant(true)),
Expression.Call(typeof(CountCompression).GetMethod("Serialize"), writer, Expression.Convert(type.IsArray ? (Expression)Expression.ArrayLength(item) : Expression.Property(item, "Count"), typeof(ulong))),
item.For(i => BuildWrite(type.IsArray ? Expression.ArrayAccess(item, i) : item.This(i), writer, membersOrder, allowNull, false), Expression.Label())
),
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.Constant(false))
));
}
if (type.IsDictionary())
{
if (!DataType.IsPrimitiveType(type.GetGenericArguments()[0]) && !type.GetGenericArguments()[0].IsEnum && type != typeof(Guid))
{
throw new NotSupportedException(String.Format("Dictionarty<{0}, TValue>", type.GetGenericArguments()[0].ToString()));
}
if (!canBeNull)
{
return(Expression.Block(
Expression.Call(typeof(CountCompression).GetMethod("Serialize"), writer, Expression.Convert(Expression.Property(item, "Count"), typeof(ulong))),
item.ForEach(current =>
{
var kv = Expression.Variable(current.Type);
return Expression.Block(new ParameterExpression[] { kv },
Expression.Assign(kv, current),
BuildWrite(Expression.PropertyOrField(kv, "Key"), writer, membersOrder, allowNull, false),
BuildWrite(Expression.PropertyOrField(kv, "Value"), writer, membersOrder, allowNull, false)
);
}, Expression.Label())
));
}
return(Expression.IfThenElse(Expression.NotEqual(item, Expression.Constant(null)),
Expression.Block(
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.Constant(true)),
Expression.Call(typeof(CountCompression).GetMethod("Serialize"), writer, Expression.Convert(Expression.Property(item, "Count"), typeof(ulong))),
item.ForEach(current =>
{
var kv = Expression.Variable(current.Type);
return Expression.Block(new ParameterExpression[] { kv },
Expression.Assign(kv, current),
BuildWrite(Expression.PropertyOrField(kv, "Key"), writer, membersOrder, allowNull, false),
BuildWrite(Expression.PropertyOrField(kv, "Value"), writer, membersOrder, allowNull, false)
);
}, Expression.Label())),
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.Constant(false))
));
}
if (type.IsNullable())
{
return(Expression.Block(Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.PropertyOrField(item, "HasValue")),
Expression.IfThen(Expression.PropertyOrField(item, "HasValue"), BuildWrite(Expression.PropertyOrField(item, "Value"), writer, membersOrder, allowNull, false))));
}
if (type.IsClass || type.IsStruct())
{
List <ParameterExpression> variables = new List <ParameterExpression>();
List <Expression> list = new List <Expression>();
if (canBeNull)
{
list.Add(Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.Constant(true)));
}
foreach (var member in DataTypeUtils.GetPublicMembers(type, membersOrder))
{
if (DataType.IsPrimitiveType(type) || type.IsKeyValuePair())
{
list.Add(BuildWrite(Expression.PropertyOrField(item, member.Name), writer, membersOrder, allowNull, false));
}
else
{
var @var = Expression.Variable(member.GetPropertyOrFieldType());
variables.Add(var);
list.Add(Expression.Assign(var, Expression.PropertyOrField(item, member.Name)));
list.Add(BuildWrite(var, writer, membersOrder, allowNull, false));
}
}
if (!canBeNull || type.IsStruct())
{
return(Expression.Block(variables, list));
}
return(Expression.IfThenElse(Expression.NotEqual(item, Expression.Constant(null)),
Expression.Block(variables, list),
Expression.Call(writer, typeof(BinaryWriter).GetMethod("Write", new Type[] { typeof(bool) }), Expression.Constant(false))
));
}
throw new NotSupportedException(item.Type.ToString());
}
public static Expression FromObjects(Expression item, ParameterExpression objectArray, Func <Type, MemberInfo, int> membersOrder)
{
Type[] types = DataType.IsPrimitiveType(item.Type) ? new Type[] { item.Type } : DataTypeUtils.GetPublicMembers(item.Type, membersOrder).Select(x => x.GetPropertyOrFieldType()).ToArray();
if (types.Length == 1)
{
return(Expression.Assign(item, Expression.Convert(Expression.ArrayAccess(objectArray, Expression.Constant(0, typeof(int))), types[0])));
}
List <Expression> list = new List <Expression>();
int i = 0;
foreach (var member in DataTypeUtils.GetPublicMembers(item.Type, membersOrder))
{
list.Add(Expression.Assign(Expression.PropertyOrField(item, member.Name), Expression.Convert(Expression.ArrayAccess(objectArray, Expression.Constant(i, typeof(int))), types[i++])));
}
return(Expression.Block(list));
}
public static Expression ToObjects(Expression item, Func <Type, MemberInfo, int> membersOrder)
{
Type[] types = DataType.IsPrimitiveType(item.Type) ? new Type[] { item.Type } : DataTypeUtils.GetPublicMembers(item.Type, membersOrder).Select(x => x.GetPropertyOrFieldType()).ToArray();
if (types.Length == 1)
{
return(Expression.NewArrayInit(typeof(object), Expression.Convert(item, typeof(object))));
}
Expression[] values = new Expression[types.Length];
int i = 0;
foreach (var member in DataTypeUtils.GetPublicMembers(item.Type, membersOrder))
{
values[i++] = Expression.Convert(Expression.PropertyOrField(item, member.Name), typeof(object));
}
return(Expression.NewArrayInit(typeof(object), values));
}
internal static Expression CreateComparerBody(List <Expression> expressions, List <ParameterExpression> parameters, Expression x, Expression y, CompareOption[] compareOptions, Func <Type, MemberInfo, int> membersOrder)
{
var exitPoint = Expression.Label(typeof(int));
List <Expression> list = new List <Expression>();
List <ParameterExpression> variables = new List <ParameterExpression>();
bool haveCmp = false;
if (expressions != null)
{
foreach (var expression in expressions)
{
list.Add(expression);
}
}
if (parameters != null)
{
foreach (var parameter in parameters)
{
variables.Add(parameter);
}
}
if (DataType.IsPrimitiveType(x.Type) || x.Type == typeof(Guid))
{
foreach (var command in GetCompareCommands(x, y, Expression.Variable(typeof(int)), exitPoint, x.Type, compareOptions[0], true))
{
list.Add(command);
}
}
else
{
int i = 0;
var cmp = Expression.Variable(typeof(int));
foreach (var field in DataTypeUtils.GetPublicMembers(x.Type, membersOrder))
{
if (!haveCmp && (field.GetPropertyOrFieldType() == typeof(char) || field.GetPropertyOrFieldType() == typeof(byte[]) || field.GetPropertyOrFieldType() == typeof(Decimal) || field.GetPropertyOrFieldType() == typeof(String)))
{
haveCmp = true;
variables.Add(cmp);
}
foreach (var command in GetCompareCommands(Expression.PropertyOrField(x, field.Name), Expression.PropertyOrField(y, field.Name), cmp, exitPoint, field.GetPropertyOrFieldType(), compareOptions[i++], i == DataTypeUtils.GetPublicMembers(x.Type, membersOrder).Count()))
{
list.Add(command);
}
}
}
return(Expression.Block(typeof(int), variables, list));
}
