diff options
Diffstat (limited to 'src/libraries/System.Private.CoreLib/src/System/Type.cs')
| -rw-r--r-- | src/libraries/System.Private.CoreLib/src/System/Type.cs | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/src/libraries/System.Private.CoreLib/src/System/Type.cs b/src/libraries/System.Private.CoreLib/src/System/Type.cs index 5a7ebed457d..0ab6e955e37 100644 --- a/src/libraries/System.Private.CoreLib/src/System/Type.cs +++ b/src/libraries/System.Private.CoreLib/src/System/Type.cs @@ -104,7 +104,7 @@ namespace System public bool IsContextful => IsContextfulImpl(); protected virtual bool IsContextfulImpl() => false; - public virtual bool IsEnum => IsSubclassOf(typeof(Enum)); + public virtual bool IsEnum { [Intrinsic] get => IsSubclassOf(typeof(Enum)); } public bool IsMarshalByRef => IsMarshalByRefImpl(); protected virtual bool IsMarshalByRefImpl() => false; public bool IsPrimitive => IsPrimitiveImpl(); @@ -438,11 +438,59 @@ namespace System return cls; } + [MethodImpl(MethodImplOptions.AggressiveInlining)] public static TypeCode GetTypeCode(Type? type) { + if (RuntimeHelpers.IsKnownConstant(type) && type is RuntimeType) + { + return GetRuntimeTypeCode((RuntimeType)type); + } return type?.GetTypeCodeImpl() ?? TypeCode.Empty; } + [MethodImpl(MethodImplOptions.AggressiveInlining)] + internal static TypeCode GetRuntimeTypeCode(RuntimeType type) + { + RuntimeType underlyingType = type; + if (type.IsActualEnum) + underlyingType = (RuntimeType)type.GetEnumUnderlyingType(); + + if (underlyingType == typeof(sbyte)) + return TypeCode.SByte; + else if (underlyingType == typeof(byte)) + return TypeCode.Byte; + else if (underlyingType == typeof(short)) + return TypeCode.Int16; + else if (underlyingType == typeof(ushort)) + return TypeCode.UInt16; + else if (underlyingType == typeof(int)) + return TypeCode.Int32; + else if (underlyingType == typeof(uint)) + return TypeCode.UInt32; + else if (underlyingType == typeof(long)) + return TypeCode.Int64; + else if (underlyingType == typeof(ulong)) + return TypeCode.UInt64; + else if (underlyingType == typeof(bool)) + return TypeCode.Boolean; + else if (underlyingType == typeof(char)) + return TypeCode.Char; + else if (underlyingType == typeof(float)) + return TypeCode.Single; + else if (underlyingType == typeof(double)) + return TypeCode.Double; + else if (underlyingType == typeof(decimal)) + return TypeCode.Decimal; + else if (underlyingType == typeof(DateTime)) + return TypeCode.DateTime; + else if (underlyingType == typeof(string)) + return TypeCode.String; + else if (underlyingType == typeof(DBNull)) + return TypeCode.DBNull; + else + return TypeCode.Object; + } + protected virtual TypeCode GetTypeCodeImpl() { Type systemType = UnderlyingSystemType; @@ -503,6 +551,7 @@ namespace System [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2085:UnrecognizedReflectionPattern", Justification = "The single instance field on enum types is never trimmed")] + [Intrinsic] public virtual Type GetEnumUnderlyingType() { if (!IsEnum) |