public TupleSerializer(RuntimeTypeModel model, ConstructorInfo ctor, MemberInfo[] members)
{
this.ctor = ctor ?? throw new ArgumentNullException(nameof(ctor));
this.members = members ?? throw new ArgumentNullException(nameof(members));
this.tails = new IProtoSerializer[members.Length];
ParameterInfo[] parameters = ctor.GetParameters();
for (int i = 0; i < members.Length; i++)
{
WireType wireType;
Type finalType = parameters[i].ParameterType;
Type itemType = null, defaultType = null;
MetaType.ResolveListTypes(model, finalType, ref itemType, ref defaultType);
Type tmp = itemType == null ? finalType : itemType;
bool asReference = false;
int typeIndex = model.FindOrAddAuto(tmp, false, true, false);
if (typeIndex >= 0)
{
asReference = model[tmp].AsReferenceDefault;
}
IProtoSerializer tail = ValueMember.TryGetCoreSerializer(model, DataFormat.Default, tmp, out wireType, asReference, false, false, true), serializer;
if (tail == null)
{
throw new InvalidOperationException("No serializer defined for type: " + tmp.FullName);
}
tail = new TagDecorator(i + 1, wireType, false, tail);
if (itemType == null)
{
serializer = tail;
}
else
{
if (finalType.IsArray)
{
serializer = new ArrayDecorator(model, tail, i + 1, false, wireType, finalType, false, false);
}
else
{
serializer = ListDecorator.Create(model, finalType, defaultType, tail, i + 1, false, wireType, true, false, false);
}
}
tails[i] = serializer;
}
}
public ArrayDecorator(TypeModel model, IProtoSerializer tail, int fieldNumber, bool writePacked, WireType packedWireType, Type arrayType, bool overwriteList, bool supportNull)
: base(tail)
{
Helpers.DebugAssert(arrayType != null, "arrayType should be non-null");
Helpers.DebugAssert(arrayType.IsArray && arrayType.GetArrayRank() == 1, "should be single-dimension array; " + arrayType.FullName);
this.itemType = arrayType.GetElementType();
Type underlyingItemType = supportNull ? itemType : (Helpers.GetUnderlyingType(itemType) ?? itemType);
Helpers.DebugAssert(underlyingItemType == Tail.ExpectedType ||
(Tail.ExpectedType == model.MapType(typeof(object)) && !Helpers.IsValueType(underlyingItemType)), "invalid tail");
Helpers.DebugAssert(Tail.ExpectedType != model.MapType(typeof(byte)), "Should have used BlobSerializer");
if ((writePacked || packedWireType != WireType.None) && fieldNumber <= 0)
{
throw new ArgumentOutOfRangeException("fieldNumber");
}
if (!ListDecorator.CanPack(packedWireType))
{
if (writePacked)
{
throw new InvalidOperationException("Only simple data-types can use packed encoding");
}
packedWireType = WireType.None;
}
this.fieldNumber = fieldNumber;
this.packedWireType = packedWireType;
if (writePacked)
{
options |= OPTIONS_WritePacked;
}
if (overwriteList)
{
options |= OPTIONS_OverwriteList;
}
if (supportNull)
{
options |= OPTIONS_SupportNull;
}
this.arrayType = arrayType;
}
protected override void EmitRead(ProtoBuf.Compiler.CompilerContext ctx, ProtoBuf.Compiler.Local valueFrom)
{
Type listType;
listType = ctx.MapType(typeof(System.Collections.Generic.List <>)).MakeGenericType(itemType);
Type expected = ExpectedType;
using (Compiler.Local oldArr = AppendToCollection ? ctx.GetLocalWithValue(expected, valueFrom) : null)
using (Compiler.Local newArr = new Compiler.Local(ctx, expected))
using (Compiler.Local list = new Compiler.Local(ctx, listType))
{
ctx.EmitCtor(listType);
ctx.StoreValue(list);
ListDecorator.EmitReadList(ctx, list, Tail, listType.GetMethod("Add"), packedWireType, false);
// leave this "using" here, as it can share the "FieldNumber" local with EmitReadList
using (Compiler.Local oldLen = AppendToCollection ? new ProtoBuf.Compiler.Local(ctx, ctx.MapType(typeof(int))) : null)
{
Type[] copyToArrayInt32Args = new Type[] { ctx.MapType(typeof(Array)), ctx.MapType(typeof(int)) };
if (AppendToCollection)
{
ctx.LoadLength(oldArr, true);
ctx.CopyValue();
ctx.StoreValue(oldLen);
ctx.LoadAddress(list, listType);
ctx.LoadValue(listType.GetProperty("Count"));
ctx.Add();
ctx.CreateArray(itemType, null); // length is on the stack
ctx.StoreValue(newArr);
ctx.LoadValue(oldLen);
Compiler.CodeLabel nothingToCopy = ctx.DefineLabel();
ctx.BranchIfFalse(nothingToCopy, true);
ctx.LoadValue(oldArr);
ctx.LoadValue(newArr);
ctx.LoadValue(0); // index in target
ctx.EmitCall(expected.GetMethod("CopyTo", copyToArrayInt32Args));
ctx.MarkLabel(nothingToCopy);
ctx.LoadValue(list);
ctx.LoadValue(newArr);
ctx.LoadValue(oldLen);
}
else
{
ctx.LoadAddress(list, listType);
ctx.LoadValue(listType.GetProperty("Count"));
ctx.CreateArray(itemType, null);
ctx.StoreValue(newArr);
ctx.LoadAddress(list, listType);
ctx.LoadValue(newArr);
ctx.LoadValue(0);
}
copyToArrayInt32Args[0] = expected; // // prefer: CopyTo(T[], int)
MethodInfo copyTo = listType.GetMethod("CopyTo", copyToArrayInt32Args);
if (copyTo == null)
{ // fallback: CopyTo(Array, int)
copyToArrayInt32Args[1] = ctx.MapType(typeof(Array));
copyTo = listType.GetMethod("CopyTo", copyToArrayInt32Args);
}
ctx.EmitCall(copyTo);
}
ctx.LoadValue(newArr);
}
}
protected override void EmitWrite(CompilerContext ctx, Local valueFrom)
{
Type itemType = typeof(KeyValuePair <TKey, TValue>);
MethodInfo moveNext, current, getEnumerator = ListDecorator.GetEnumeratorInfo(ctx.Model,
ExpectedType, itemType, out moveNext, out current);
Type enumeratorType = getEnumerator.ReturnType;
MethodInfo key = itemType.GetProperty(nameof(KeyValuePair <TKey, TValue> .Key)).GetGetMethod(),
@value = itemType.GetProperty(nameof(KeyValuePair <TKey, TValue> .Value)).GetGetMethod();
using (Compiler.Local list = ctx.GetLocalWithValue(ExpectedType, valueFrom))
using (Compiler.Local iter = new Compiler.Local(ctx, enumeratorType))
using (Compiler.Local token = new Compiler.Local(ctx, typeof(SubItemToken)))
using (Compiler.Local kvp = new Compiler.Local(ctx, itemType))
{
ctx.LoadAddress(list, ExpectedType);
ctx.EmitCall(getEnumerator, ExpectedType);
ctx.StoreValue(iter);
using (ctx.Using(iter))
{
Compiler.CodeLabel body = ctx.DefineLabel(), next = ctx.DefineLabel();
ctx.Branch(next, false);
ctx.MarkLabel(body);
ctx.LoadAddress(iter, enumeratorType);
ctx.EmitCall(current, enumeratorType);
if (itemType != ctx.MapType(typeof(object)) && current.ReturnType == ctx.MapType(typeof(object)))
{
ctx.CastFromObject(itemType);
}
ctx.StoreValue(kvp);
ctx.LoadValue(fieldNumber);
ctx.LoadValue((int)wireType);
ctx.LoadReaderWriter();
ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("WriteFieldHeader"));
ctx.LoadNullRef();
ctx.LoadReaderWriter();
ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("StartSubItem"));
ctx.StoreValue(token);
ctx.LoadAddress(kvp, itemType);
ctx.EmitCall(key, itemType);
ctx.WriteNullCheckedTail(typeof(TKey), keyTail, null);
ctx.LoadAddress(kvp, itemType);
ctx.EmitCall(value, itemType);
ctx.WriteNullCheckedTail(typeof(TValue), Tail, null);
ctx.LoadValue(token);
ctx.LoadReaderWriter();
ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("EndSubItem"));
ctx.MarkLabel(@next);
ctx.LoadAddress(iter, enumeratorType);
ctx.EmitCall(moveNext, enumeratorType);
ctx.BranchIfTrue(body, false);
}
}
}
