private static void ReadRootObjectMembersCount(ILGenerator il, Type type, SharedVariables variableCache)
{
if (type.IsExplicitStruct())
{
// member count is not written for structs
return;
}
var notNull = il.DefineLabel();
// CODE-FOR: if (!NumericSerializers.ReadVarUInt32Nullable(reader).HasValue)
var readCountMethod = typeof(NumericSerializers).GetMethod(nameof(NumericSerializers.ReadVarUInt32Nullable),
BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public, Type.DefaultBinder,
new[] { typeof(BinaryReader) }, null);
var memberCount_shared = variableCache.GetOrAdd(typeof(uint?));
il.Emit(OpCodes.Ldarg_0); // BinaryReader
il.Emit(OpCodes.Call, readCountMethod);
il.StoreLocal(memberCount_shared);
il.LoadLocalAddress(memberCount_shared);
// ReSharper disable once PossibleNullReferenceException
il.Emit(OpCodes.Call, typeof(uint?).GetProperty(nameof(Nullable <uint> .HasValue)).GetGetMethod());
il.Emit(OpCodes.Brtrue_S, notNull);
// CODE-FOR: return default(struct);
// CODE-FOR: return null;
if (type.IsExplicitStruct())
{
var defaultInstance = il.DeclareLocal(type);
il.LoadLocalAddress(defaultInstance);
il.Emit(OpCodes.Initobj, type);
il.LoadLocalValue(defaultInstance);
il.Emit(OpCodes.Ret);
}
else
{
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Ret);
}
il.MarkLabel(notNull);
variableCache.ReturnVariable(memberCount_shared);
}
private static void ReadRootObject(ILGenerator il, Type type, BoisComplexTypeInfo typeInfo)
{
if (typeInfo.Members == null || typeInfo.Members.Length == 0)
{
// no mmeber
return;
}
var variableCache = new SharedVariables(il);
ReadRootObjectMembersCount(il, type, variableCache);
foreach (var member in typeInfo.Members)
{
ReadRootObjectMember(member, type, il, variableCache);
}
}
private static void ReadRootObjectBasicMember(Type memberType, BoisBasicTypeInfo basicInfo, PropertyInfo prop, FieldInfo field, Type containerType, ILGenerator il, SharedVariables variableCache)
{
switch (basicInfo.KnownType)
{
case EnBasicKnownType.String:
EmitGenerator.ReadString(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Bool:
EmitGenerator.ReadBool(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Int16:
EmitGenerator.ReadInt16(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Int32:
EmitGenerator.ReadInt32(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Int64:
EmitGenerator.ReadInt64(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.UInt16:
EmitGenerator.ReadUInt16(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.UInt32:
EmitGenerator.ReadUInt32(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.UInt64:
EmitGenerator.ReadUInt64(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Double:
EmitGenerator.ReadDouble(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Decimal:
EmitGenerator.ReadDecimal(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Single:
EmitGenerator.ReadFloat(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Byte:
EmitGenerator.ReadByte(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.SByte:
EmitGenerator.ReadSByte(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.DateTime:
EmitGenerator.ReadDateTime(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.DateTimeOffset:
EmitGenerator.ReadDateTimeOffset(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.KnownTypeArray:
EmitGenerator.ReadUnknownArray(prop, field, null, containerType, il, basicInfo.IsNullable, variableCache);
break;
case EnBasicKnownType.ByteArray:
EmitGenerator.ReadByteArray(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Enum:
EmitGenerator.ReadEnum(prop, field, null, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.TimeSpan:
EmitGenerator.ReadTimeSpan(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Char:
EmitGenerator.ReadChar(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Guid:
EmitGenerator.ReadGuid(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Color:
EmitGenerator.ReadColor(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.DbNull:
EmitGenerator.ReadDbNull(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Uri:
EmitGenerator.ReadUri(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.Version:
EmitGenerator.ReadVersion(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.DataTable:
EmitGenerator.ReadDataTable(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
case EnBasicKnownType.DataSet:
EmitGenerator.ReadDataSet(prop, field, null, containerType, il, basicInfo.IsNullable);
break;
default:
case EnBasicKnownType.Unknown:
return;
}
}
private static void ReadRootObjectComplexMember(Type memberType, BoisComplexTypeInfo complexTypeInfo, PropertyInfo prop, FieldInfo field, Type containerType, ILGenerator il, SharedVariables variableCache)
{
switch (complexTypeInfo.ComplexKnownType)
{
case EnComplexKnownType.Collection:
case EnComplexKnownType.ISet:
EmitGenerator.ReadGenericCollection(prop, field, null, containerType, il, complexTypeInfo.IsNullable, variableCache);
break;
case EnComplexKnownType.Dictionary:
EmitGenerator.ReadDictionary(prop, field, null, containerType, il, complexTypeInfo.IsNullable, variableCache);
break;
case EnComplexKnownType.UnknownArray:
EmitGenerator.ReadUnknownArray(prop, field, null, containerType, il, complexTypeInfo.IsNullable, variableCache);
break;
case EnComplexKnownType.NameValueColl:
EmitGenerator.ReadNameValueColl(prop, field, null, containerType, il, complexTypeInfo.IsNullable, variableCache);
break;
case EnComplexKnownType.Unknown:
default:
EmitGenerator.ReadUnknownComplexTypeCall(memberType, prop, field, containerType, il, complexTypeInfo);
return;
}
}
private static void ReadRootObjectMember(MemberInfo member, Type containerType, ILGenerator il, SharedVariables variableCache)
{
var prop = member as PropertyInfo;
var field = member as FieldInfo;
Type memberType;
if (prop != null)
{
memberType = prop.PropertyType;
}
else if (field != null)
{
memberType = field.FieldType;
}
else
{
return;
}
var basicInfo = BoisTypeCache.GetBasicType(memberType);
if (basicInfo.KnownType != EnBasicKnownType.Unknown)
{
ReadRootObjectBasicMember(memberType, basicInfo, prop, field, containerType, il, variableCache);
}
else
{
var complexTypeInfo = BoisTypeCache.GetComplexTypeUnCached(memberType);
ReadRootObjectComplexMember(memberType, complexTypeInfo, prop, field, containerType, il, variableCache);
}
}
