protected Data(DataKind kind, HexSpan span)
{
Kind = kind;
Span = span;
}
public Column(int columnIndex, ColumnPurpose purpose, DataKind itemKind)
{
ColumnIndex = columnIndex;
Purpose = purpose;
ItemKind = itemKind;
}
internal DeleteData(DataKind kind, string key, int version)
{
Kind = kind;
Key = key;
Version = version;
}
protected SoundCloudUserData(DataKind kind) : base(kind)
{
User = new User() { Id = 0 };
}
private string ItemsKey(DataKind kind) => _prefix + ":" + kind.Name;
/// <summary>
/// Read a value from the stream. The value must have been written using ObjectWriter.WriteValue.
/// </summary>
public object ReadValue()
{
DataKind kind = (DataKind)reader.ReadByte();
switch (kind)
{
case DataKind.Null:
return(null);
case DataKind.Boolean_T:
return(BooleanTrue);
case DataKind.Boolean_F:
return(BooleanFalse);
case DataKind.Int8:
return(reader.ReadSByte());
case DataKind.UInt8:
return(reader.ReadByte());
case DataKind.Int16:
return(reader.ReadInt16());
case DataKind.UInt16:
return(reader.ReadUInt16());
case DataKind.Int32:
return(reader.ReadInt32());
case DataKind.Int32_B:
return((int)reader.ReadByte());
case DataKind.Int32_S:
return((int)reader.ReadUInt16());
case DataKind.Int32_Z:
return(Int32Zero);
case DataKind.UInt32:
return(reader.ReadUInt32());
case DataKind.Int64:
return(reader.ReadInt64());
case DataKind.UInt64:
return(reader.ReadUInt64());
case DataKind.Float4:
return(reader.ReadSingle());
case DataKind.Float8:
return(reader.ReadDouble());
case DataKind.Decimal:
return(reader.ReadDecimal());
case DataKind.DateTime:
return(this.ReadDateTime());
case DataKind.Char:
return(this.ReadChar());
case DataKind.StringUtf8:
case DataKind.StringUtf16:
case DataKind.StringRef:
case DataKind.StringRef_B:
case DataKind.StringRef_S:
return(ReadString(kind));
case DataKind.Object_W:
case DataKind.ObjectRef:
case DataKind.ObjectRef_B:
case DataKind.ObjectRef_S:
return(ReadObject(kind));
case DataKind.Type:
case DataKind.TypeRef:
case DataKind.TypeRef_B:
case DataKind.TypeRef_S:
return(ReadType(kind));
case DataKind.Enum:
return(ReadEnum());
case DataKind.Array:
case DataKind.Array_0:
case DataKind.Array_1:
case DataKind.Array_2:
case DataKind.Array_3:
return(ReadArray(kind));
default:
throw ExceptionUtilities.UnexpectedValue(kind);
}
}
internal KeyType(DataKind kind, ulong min, int count, bool contiguous = true)
: this(ToRawType(kind), kind, min, count, contiguous)
{
}
/// <summary>
/// Given a field or property info on a type, returns whether this appears to be a vector type,
/// and also the associated data kind for this type. If a data kind could not
/// be determined, this will throw.
/// </summary>
/// <param name="memberInfo">The field or property info to inspect.</param>
/// <param name="isVector">Whether this appears to be a vector type.</param>
/// <param name="kind">The data kind of the type, or items of this type if vector.</param>
public static void GetVectorAndKind(MemberInfo memberInfo, out bool isVector, out DataKind kind)
{
Contracts.AssertValue(memberInfo);
switch (memberInfo)
{
case FieldInfo fieldInfo:
GetVectorAndKind(fieldInfo.FieldType, fieldInfo.Name, out isVector, out kind);
break;
case PropertyInfo propertyInfo:
GetVectorAndKind(propertyInfo.PropertyType, propertyInfo.Name, out isVector, out kind);
break;
default:
Contracts.Assert(false);
throw Contracts.ExceptNotSupp("Expected a FieldInfo or a PropertyInfo");
}
}
/// <summary>
/// Given a parameter info on a type, returns whether this appears to be a vector type,
/// and also the associated data kind for this type. If a data kind could not
/// be determined, this will throw.
/// </summary>
/// <param name="parameterInfo">The parameter info to inspect.</param>
/// <param name="isVector">Whether this appears to be a vector type.</param>
/// <param name="kind">The data kind of the type, or items of this type if vector.</param>
public static void GetVectorAndKind(ParameterInfo parameterInfo, out bool isVector, out DataKind kind)
{
Contracts.AssertValue(parameterInfo);
Type rawParameterType = parameterInfo.ParameterType;
var name = parameterInfo.Name;
GetVectorAndKind(rawParameterType, name, out isVector, out kind);
}
public int GetDataKind(out DataKind dataKind)
{
dataKind = default(DataKind);
int _dataKindEnum;
int hr = S.StdCall<int>(GetVTableMember(9), Punk, out _dataKindEnum);
GC.KeepAlive(this);
dataKind = (DataKind)_dataKindEnum;
return hr;
}
private string ReadString(DataKind kind)
{
switch (kind)
{
case DataKind.StringRef_B:
return (string)this.dataMap.GetValue(reader.ReadByte());
case DataKind.StringRef_S:
return (string)this.dataMap.GetValue(reader.ReadUInt16());
case DataKind.StringRef:
return (string)this.dataMap.GetValue(reader.ReadInt32());
case DataKind.String:
int id = this.dataMap.GetNextId();
string value = reader.ReadString();
this.dataMap.AddValue(id, value);
return value;
default:
throw ExceptionUtilities.UnexpectedValue(kind);
}
}
private static string mapKind(DataKind kind)
{
switch (kind)
{
case DataKind.DateTimeLocal: return "datetime-local";
case DataKind.Telephone: return "tel";
default: return kind.ToString().ToLowerInvariant();
}
}
public FieldAttribute(
Type protoType,
string protoFieldName, //Schema:Field
string targetName = ANY_TARGET,
object storeFlag = null,
object key = null,
object kind = null,
object required = null,
object visible = null,
string valueList = null,
object dflt = null,
object min = null,
object max = null,
object minLength = null,
object maxLength = null,
object charCase = null,
string backendName = null,
string backendType = null,
string description = null,
string metadata = null,
object nonUI = null,
string formatRegExp = null,
string formatDescr = null,
string displayFormat = null
)
: base(targetName, null)
{
if (protoType==null || protoFieldName.IsNullOrWhiteSpace()) throw new CRUDException(StringConsts.ARGUMENT_ERROR+"FieldAttr.ctor(protoType|protoFieldName=null|empty)");
try
{
var schema = Schema.GetForTypedRow(protoType);
var protoTargetName = targetName;
var segs = protoFieldName.Split(':');
if (segs.Length>1)
{
protoTargetName = segs[0].Trim();
protoFieldName = segs[1].Trim();
}
if (protoTargetName.IsNullOrWhiteSpace()) throw new Exception("Wrong target syntax");
if (protoFieldName.IsNullOrWhiteSpace()) throw new Exception("Wrong field syntax");
var protoFieldDef = schema[protoFieldName];
if (protoFieldDef==null) throw new Exception("Prototype '{0}' field '{1}' not found".Args(protoType.FullName, protoFieldName));
var protoAttr = protoFieldDef[protoTargetName];
try
{
StoreFlag = storeFlag == null? protoAttr.StoreFlag : (StoreFlag)storeFlag;
BackendName = backendName == null? protoAttr.BackendName : backendName;
BackendType = backendType == null? protoAttr.BackendType : backendType;
Key = key == null? protoAttr.Key : (bool)key;
Kind = kind == null? protoAttr.Kind : (DataKind)kind;
Required = required == null? protoAttr.Required : (bool)required;
Visible = visible == null? protoAttr.Visible : (bool)visible;
Min = min == null? protoAttr.Min : min;
Max = max == null? protoAttr.Max : max;
Default = dflt == null? protoAttr.Default : dflt;
MinLength = minLength == null? protoAttr.MinLength : (int)minLength;
MaxLength = maxLength == null? protoAttr.MaxLength : (int)maxLength;
CharCase = charCase == null? protoAttr.CharCase : (CharCase)charCase;
ValueList = valueList == null? protoAttr.ValueList : valueList;
Description = description == null? protoAttr.Description : description;
NonUI = nonUI == null? protoAttr.NonUI : (bool)nonUI;
FormatRegExp = formatRegExp == null? protoAttr.FormatRegExp: formatRegExp;
FormatDescription= formatDescr == null? protoAttr.FormatDescription: formatDescr;
DisplayFormat = displayFormat== null? protoAttr.DisplayFormat : displayFormat;
if (metadata.IsNullOrWhiteSpace())
m_MetadataContent = protoAttr.m_MetadataContent;
else
if (protoAttr.m_MetadataContent.IsNullOrWhiteSpace()) m_MetadataContent = metadata;
else
{
var conf1 = ParseMetadataContent(protoAttr.m_MetadataContent);
var conf2 = ParseMetadataContent(metadata);
var merged = new LaconicConfiguration();
merged.CreateFromMerge(conf1, conf2);
m_MetadataContent = merged.SaveToString();
}
}
catch(Exception err)
{
throw new Exception("Invalid assignment of prototype override value: " + err.ToMessageWithType());
}
}
catch(Exception error)
{
throw new CRUDException(StringConsts.CRUD_FIELD_ATTR_PROTOTYPE_CTOR_ERROR.Args(error.Message));
}
}
/// <summary>
/// Used for injection of pre-parsed value list
/// </summary>
public FieldAttribute(
JSONDataMap valueList,
string targetName = ANY_TARGET,
StoreFlag storeFlag = StoreFlag.LoadAndStore,
bool key = false,
DataKind kind = DataKind.Text,
bool required = false,
bool visible = true,
object dflt = null,
object min = null,
object max = null,
int minLength = 0,
int maxLength = 0,
CharCase charCase = CharCase.AsIs,
string backendName = null,
string backendType = null,
string description = null,
string metadata = null,
bool nonUI = false,
string formatRegExp = null,
string formatDescr = null,
string displayFormat = null
)
: base(targetName, metadata)
{
if (valueList == null)
throw new CRUDException("FieldAttribute(JSONDataMap valueList==null)");
StoreFlag = storeFlag;
BackendName = backendName;
BackendType = backendType;
Key = key;
Kind = kind;
Required = required;
Visible = visible;
Min = min;
Max = max;
Default = dflt;
MinLength = minLength;
MaxLength = maxLength;
CharCase = charCase;
Description = description;
NonUI = nonUI;
FormatRegExp = formatRegExp;
FormatDescription = formatDescr;
DisplayFormat = displayFormat;
m_CacheValueListPresetInCtor = true;
m_CacheValueList_Insensitive = valueList;
m_CacheValueList_Sensitive = valueList;
ValueList = null;
}
private Array ReadPrimitiveTypeArrayElements(Type type, DataKind kind, int length)
{
Debug.Assert(s_reverseTypeMap[kind] == type);
// optimizations for supported array type by binary reader
if (type == typeof(byte))
{
return(_reader.ReadBytes(length));
}
if (type == typeof(char))
{
return(_reader.ReadChars(length));
}
// optimizations for string where object reader/writer has its own mechanism to
// reduce duplicated strings
if (type == typeof(string))
{
return(ReadPrimitiveTypeArrayElements(length, ReadString));
}
if (type == typeof(bool))
{
return(ReadBooleanArray(length));
}
// otherwise, read elements directly from underlying binary writer
switch (kind)
{
case DataKind.Int8:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadSByte));
case DataKind.Int16:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadInt16));
case DataKind.Int32:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadInt32));
case DataKind.Int64:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadInt64));
case DataKind.UInt16:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadUInt16));
case DataKind.UInt32:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadUInt32));
case DataKind.UInt64:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadUInt64));
case DataKind.Float4:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadSingle));
case DataKind.Float8:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadDouble));
case DataKind.Decimal:
return(ReadPrimitiveTypeArrayElements(length, _reader.ReadDecimal));
default:
throw ExceptionUtilities.UnexpectedValue(kind);
}
}
/// <summary>
/// Given a type and name for a variable, returns whether this appears to be a vector type,
/// and also the associated data kind for this type. If a data kind could not
/// be determined, this will throw.
/// </summary>
/// <param name="rawType">The type of the variable to inspect.</param>
/// <param name="name">The name of the variable to inspect.</param>
/// <param name="isVector">Whether this appears to be a vector type.</param>
/// <param name="kind">The data kind of the type, or items of this type if vector.</param>
public static void GetVectorAndKind(Type rawType, string name, out bool isVector, out DataKind kind)
{
// Determine whether this is a vector, and also determine the raw item type.
Type rawItemType;
isVector = true;
if (rawType.IsArray)
{
rawItemType = rawType.GetElementType();
}
else if (rawType.IsGenericType && rawType.GetGenericTypeDefinition() == typeof(VBuffer <>))
{
rawItemType = rawType.GetGenericArguments()[0];
}
else
{
rawItemType = rawType;
isVector = false;
}
// Get the data kind, and the item's column type.
if (rawItemType == typeof(string))
{
kind = DataKind.Text;
}
else if (!rawItemType.TryGetDataKind(out kind))
{
throw Contracts.ExceptParam(nameof(rawType), "Could not determine an IDataView type for member {0}", name);
}
}
private Key <T> Load <T>(DataKind kind, int ordinal, ulong?keyCount)
{
Contracts.CheckParam(ordinal >= 0, nameof(ordinal), "Should be non-negative");
return(new MyKey <T>(_rec, kind, ordinal, keyCount));
}
/// <summary>
/// A view cannot be modified by adding a column.
/// </summary>
public int AddColumn(string name, DataKind kind, int?length)
{
throw new DataFrameViewException("A column cannot be added to a DataFrameView.");
}
private protected StructuredType(Type rawType, DataKind rawKind)
: base(rawType, rawKind)
{
Contracts.Assert(!IsPrimitive);
}
public bool Upsert(DataKind kind, string key, ItemDescriptor item)
{
var serializedItem = Serialize(kind, item);
bool updated = false;
Exception failure = null;
try
{
updated = _core.Upsert(kind, key, serializedItem);
ProcessError(null);
}
catch (Exception e)
{
// Normally, if the underlying store failed to do the update, we do not want to update the cache -
// the idea being that it's better to stay in a consistent state of having old data than to act
// like we have new data but then suddenly fall back to old data when the cache expires. However,
// if the cache TTL is infinite, then it makes sense to update the cache always.
ProcessError(e);
if (!_caching.IsInfiniteTtl)
{
throw;
}
failure = e;
}
if (_itemCache != null)
{
var cacheKey = new CacheKey(kind, key);
if (failure is null)
{
if (updated)
{
_itemCache.Set(cacheKey, item);
}
else
{
// there was a concurrent modification elsewhere - update the cache to get the new state
_itemCache.Remove(cacheKey);
_itemCache.Get(cacheKey);
}
}
else
{
try
{
var oldItem = _itemCache.Get(cacheKey);
if (!oldItem.HasValue || oldItem.Value.Version < item.Version)
{
_itemCache.Set(cacheKey, item);
}
}
catch (Exception)
{
// An exception here means that the underlying database is down *and* there was no
// cached item; in that case we just go ahead and update the cache.
_itemCache.Set(cacheKey, item);
}
}
}
if (_allCache != null)
{
// If the cache has a finite TTL, then we should remove the "all items" cache entry to force
// a reread the next time All is called. However, if it's an infinite TTL, we need to just
// update the item within the existing "all items" entry (since we want things to still work
// even if the underlying store is unavailable).
if (_caching.IsInfiniteTtl)
{
try
{
var cachedAll = _allCache.Get(kind);
_allCache.Set(kind, cachedAll.SetItem(key, item));
}
catch (Exception) { }
// An exception here means that we did not have a cached value for All, so it tried to query
// the underlying store, which failed (not surprisingly since it just failed a moment ago
// when we tried to do an update). This should not happen in infinite-cache mode, but if it
// does happen, there isn't really anything we can do.
}
else
{
_allCache.Remove(kind);
}
}
if (failure != null)
{
throw failure;
}
return(updated);
}
public Dictionary <string, SerializedItemDescriptor> DataForPrefixAndKind(string prefix, DataKind kind)
{
var dfp = DataForPrefix(prefix);
if (dfp.TryGetValue(kind, out var ret))
{
return(ret);
}
var d = new Dictionary <string, SerializedItemDescriptor>();
dfp[kind] = d;
return(d);
}
private ImmutableDictionary <string, ItemDescriptor> GetAllAndDeserialize(DataKind kind)
{
return(_core.GetAll(kind).Items.ToImmutableDictionary(
kv => kv.Key,
kv => Deserialize(kind, kv.Value)));
}
public bool Upsert(DataKind kind, string key, SerializedItemDescriptor newItem)
{
IDatabase db = _redis.GetDatabase();
string baseKey = ItemsKey(kind);
while (true)
{
string oldData;
try
{
oldData = db.HashGet(baseKey, key);
}
catch (RedisTimeoutException e)
{
_log.Error("Timeout in update when reading {0} from {1}: {2}", key, baseKey, e.ToString());
throw;
}
// Here, unfortunately, we have to deserialize the old item (if any) just to find
// out its version number (see implementation notes).
var oldVersion = (oldData is null) ? 0 : kind.Deserialize(oldData).Version;
if (oldVersion >= newItem.Version)
{
_log.Debug("Attempted to {0} key: {1} version: {2} with a version that is" +
" the same or older: {3} in \"{4}\"",
newItem.Deleted ? "delete" : "update",
key, oldVersion, newItem.Version, kind.Name);
return(false);
}
// This hook is used only in unit tests
_updateHook?.Invoke();
// Note that transactions work a bit differently in StackExchange.Redis than in other
// Redis clients. The same Redis connection is shared across all threads, so it can't
// set a WATCH at the moment we start the transaction. Instead, it saves up all of
// the actions we send during the transaction, and replays them all within a MULTI
// when the transaction. AddCondition() is this client's way of doing a WATCH, and it
// can only use an equality match on the whole value (which is unfortunate since a
// serialized flag value could be fairly large).
ITransaction txn = db.CreateTransaction();
txn.AddCondition(oldData is null ? Condition.HashNotExists(baseKey, key) :
Condition.HashEqual(baseKey, key, oldData));
txn.HashSetAsync(baseKey, key, newItem.SerializedItem);
try
{
bool success = txn.Execute();
if (!success)
{
// The watch was triggered, we should retry
_log.Debug("Concurrent modification detected, retrying");
continue;
}
}
catch (RedisTimeoutException e)
{
_log.Error("Timeout on update of {0} in {1}: {2}", key, baseKey, e.ToString());
throw;
}
return(true);
}
}
private SerializedItemDescriptor Serialize(DataKind kind, ItemDescriptor itemDesc)
{
return(new SerializedItemDescriptor(itemDesc.Version,
itemDesc.Item is null, kind.Serialize(itemDesc)));
}
public FieldAttribute(
string targetName = ANY_TARGET,
StoreFlag storeFlag = StoreFlag.LoadAndStore,
bool key = false,
DataKind kind = DataKind.Text,
bool required = false,
bool visible = true,
string valueList = null,
object dflt = null,
object min = null,
object max = null,
int minLength = 0,
int maxLength = 0,
CharCase charCase = CharCase.AsIs,
string backendName = null,
string description = null,
string metadata = null,
bool nonUI = false
) : base(targetName, metadata)
{
StoreFlag = storeFlag;
BackendName = backendName;
Key = key;
Kind = kind;
Required = required;
Visible = visible;
Min = min;
Max = max;
Default = dflt;
MinLength = minLength;
MaxLength = maxLength;
CharCase = charCase;
ValueList = valueList;
Description = description;
NonUI = nonUI;
}
public CacheKey(DataKind kind, string key)
{
Kind = kind;
Key = key;
}
internal PatchData(DataKind kind, string key, ItemDescriptor item)
{
Kind = kind;
Key = key;
Item = item;
}
protected virtual string MapCLRKindToJS(DataKind kind)
{
switch (kind)
{
case DataKind.DateTimeLocal: return "datetime-local";
case DataKind.Telephone: return "tel";
default: return kind.ToString().ToLowerInvariant();
}
}
internal static string PathNameForKind(DataKind kind) => (kind == DataModel.Features) ? "flags" : kind.Name;
private string ReadString(DataKind kind)
{
switch (kind)
{
case DataKind.StringRef_B:
return (string)_dataMap.GetValue(_reader.ReadByte());
case DataKind.StringRef_S:
return (string)_dataMap.GetValue(_reader.ReadUInt16());
case DataKind.StringRef:
return (string)_dataMap.GetValue(_reader.ReadInt32());
case DataKind.StringUtf16:
case DataKind.StringUtf8:
return ReadStringLiteral(kind);
default:
throw ExceptionUtilities.UnexpectedValue(kind);
}
}
/// <summary>
/// Create a <see cref="TypeConvertingEstimator"/>, which converts the type of the data to the type specified in <paramref name="outputKind"/>.
/// </summary>
/// <param name="catalog">The conversion transform's catalog.</param>
/// <param name="outputColumnName">Name of the column resulting from the transformation of <paramref name="inputColumnName"/>.</param>
/// <param name="inputColumnName">Name of the column to transform. If set to <see langword="null"/>, the value of the <paramref name="outputColumnName"/> will be used as source.
/// This transform operates over numeric, boolean, text, <see cref="System.DateTime"/> and key data types.</param>
/// <param name="outputKind">The expected kind of the output column.</param>
/// <example>
/// <format type="text/markdown">
/// <]
/// ]]></format>
/// </example>
public static TypeConvertingEstimator ConvertType(this TransformsCatalog.ConversionTransforms catalog, string outputColumnName, string inputColumnName = null,
DataKind outputKind = ConvertDefaults.DefaultOutputKind)
=> new TypeConvertingEstimator(CatalogUtils.GetEnvironment(catalog), new[] { new TypeConvertingEstimator.ColumnOptions(outputColumnName, outputKind, inputColumnName) });
private unsafe string ReadStringLiteral(DataKind kind)
{
int id = _dataMap.GetNextId();
string value;
if (kind == DataKind.StringUtf8)
{
value = _reader.ReadString();
}
else
{
// This is rare, just allocate UTF16 bytes for simplicity.
int characterCount = (int)ReadCompressedUInt();
byte[] bytes = _reader.ReadBytes(characterCount * sizeof(char));
fixed (byte* bytesPtr = bytes)
{
value = new string((char*)bytesPtr, 0, characterCount);
}
}
_dataMap.AddValue(id, value);
return value;
}
private Scalar <T> Load <T>(DataKind kind, int ordinal)
{
Contracts.CheckParam(ordinal >= 0, nameof(ordinal), "Should be non-negative");
return(new MyScalar <T>(_rec, kind, ordinal));
}
private Array ReadArray(DataKind kind)
{
int length;
switch (kind)
{
case DataKind.Array_0:
length = 0;
break;
case DataKind.Array_1:
length = 1;
break;
case DataKind.Array_2:
length = 2;
break;
case DataKind.Array_3:
length = 3;
break;
default:
length = (int)this.ReadCompressedUInt();
break;
}
Type elementType = this.ReadType();
Array array = Array.CreateInstance(elementType, length);
for (int i = 0; i < length; i++)
{
var value = this.ReadValue();
array.SetValue(value, i);
}
return array;
}
public MyScalar(Reconciler rec, DataKind kind, int ordinal)
: base(rec, null)
{
_kind = kind;
_ordinal = ordinal;
}
private Type ReadType(DataKind kind)
{
switch (kind)
{
case DataKind.TypeRef_B:
return (Type)_dataMap.GetValue(_reader.ReadByte());
case DataKind.TypeRef_S:
return (Type)_dataMap.GetValue(_reader.ReadUInt16());
case DataKind.TypeRef:
return (Type)_dataMap.GetValue(_reader.ReadInt32());
case DataKind.Type:
int id = _dataMap.GetNextId();
var assemblyName = this.ReadString();
var typeName = this.ReadString();
if (_binder == null)
{
throw NoBinderException(typeName);
}
var type = _binder.GetType(assemblyName, typeName);
_dataMap.AddValue(id, type);
return type;
default:
throw ExceptionUtilities.UnexpectedValue(kind);
}
}
private Type ReadType()
{
DataKind kind = (DataKind)reader.ReadByte();
return(ReadType(kind));
}
private object ReadObject(DataKind kind)
{
switch (kind)
{
case DataKind.ObjectRef_B:
return _dataMap.GetValue(_reader.ReadByte());
case DataKind.ObjectRef_S:
return _dataMap.GetValue(_reader.ReadUInt16());
case DataKind.ObjectRef:
return _dataMap.GetValue(_reader.ReadInt32());
case DataKind.Object_W:
return this.ReadReadableObject();
case DataKind.Array:
return this.ReadArray(kind);
default:
throw ExceptionUtilities.UnexpectedValue(kind);
}
}
private protected PrimitiveType(Type rawType, DataKind rawKind)
: base(rawType, rawKind)
{
Contracts.Assert(IsPrimitive);
Contracts.Assert(!typeof(IDisposable).IsAssignableFrom(RawType));
}
/// <summary>
/// Try to map a System.Type to a corresponding DataKind value.
/// </summary>
public static bool TryGetDataKind(this Type type, out DataKind kind)
{
Contracts.CheckValueOrNull(type);
// REVIEW: Make this more efficient. Should we have a global dictionary?
if (type == typeof(DvInt1) || type == typeof(sbyte) || type == typeof(sbyte?))
{
kind = DataKind.I1;
}
else if (type == typeof(byte) || type == typeof(byte?))
{
kind = DataKind.U1;
}
else if (type == typeof(DvInt2) || type == typeof(short) || type == typeof(short?))
{
kind = DataKind.I2;
}
else if (type == typeof(ushort) || type == typeof(ushort?))
{
kind = DataKind.U2;
}
else if (type == typeof(DvInt4) || type == typeof(int) || type == typeof(int?))
{
kind = DataKind.I4;
}
else if (type == typeof(uint) || type == typeof(uint?))
{
kind = DataKind.U4;
}
else if (type == typeof(DvInt8) || type == typeof(long) || type == typeof(long?))
{
kind = DataKind.I8;
}
else if (type == typeof(ulong) || type == typeof(ulong?))
{
kind = DataKind.U8;
}
else if (type == typeof(Single) || type == typeof(Single?))
{
kind = DataKind.R4;
}
else if (type == typeof(Double) || type == typeof(Double?))
{
kind = DataKind.R8;
}
else if (type == typeof(DvText))
{
kind = DataKind.TX;
}
else if (type == typeof(DvBool) || type == typeof(bool) || type == typeof(bool?))
{
kind = DataKind.BL;
}
else if (type == typeof(DvTimeSpan))
{
kind = DataKind.TS;
}
else if (type == typeof(DvDateTime))
{
kind = DataKind.DT;
}
else if (type == typeof(DvDateTimeZone))
{
kind = DataKind.DZ;
}
else if (type == typeof(UInt128))
{
kind = DataKind.UG;
}
else
{
kind = default(DataKind);
return(false);
}
return(true);
}
private static Type ToRawType(DataKind kind)
{
Contracts.CheckParam(IsValidDataKind(kind), nameof(kind));
return(kind.ToType());
}
/// <summary>
/// Maps a DataKind to a value suitable for indexing into an array of size KindCount.
/// </summary>
public static int ToIndex(this DataKind kind)
{
return(kind - KindMin);
}
/// <summary>
/// Try to map a System.Type to a corresponding DataKind value.
/// </summary>
public static bool TryGetDataKind(this Type type, out DataKind kind)
{
Contracts.CheckValueOrNull(type);
// REVIEW: Make this more efficient. Should we have a global dictionary?
if (type == typeof(sbyte))
{
kind = DataKind.I1;
}
else if (type == typeof(byte))
{
kind = DataKind.U1;
}
else if (type == typeof(short))
{
kind = DataKind.I2;
}
else if (type == typeof(ushort))
{
kind = DataKind.U2;
}
else if (type == typeof(int))
{
kind = DataKind.I4;
}
else if (type == typeof(uint))
{
kind = DataKind.U4;
}
else if (type == typeof(long))
{
kind = DataKind.I8;
}
else if (type == typeof(ulong))
{
kind = DataKind.U8;
}
else if (type == typeof(Single))
{
kind = DataKind.R4;
}
else if (type == typeof(Double))
{
kind = DataKind.R8;
}
else if (type == typeof(ReadOnlyMemory <char>) || type == typeof(string))
{
kind = DataKind.TX;
}
else if (type == typeof(bool))
{
kind = DataKind.BL;
}
else if (type == typeof(TimeSpan))
{
kind = DataKind.TS;
}
else if (type == typeof(DateTime))
{
kind = DataKind.DT;
}
else if (type == typeof(DateTimeOffset))
{
kind = DataKind.DZ;
}
else if (type == typeof(RowId))
{
kind = DataKind.UG;
}
else
{
kind = default(DataKind);
return(false);
}
return(true);
}
internal ExprData(DataKind type, int data)
{
Type = type;
Data = data;
}
