SByte.cs

using System.Globalization;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Security;

namespace System
{
    [Serializable]
    [CLSCompliant(false)]
    [ComVisible(true)]
    [__DynamicallyInvokable]
    public struct SByte : IComparable, IFormattable, IConvertible, IComparable<sbyte>, IEquatable<sbyte>
    {
        private sbyte m_value;

        [__DynamicallyInvokable]
        public const sbyte MaxValue = 127;

        [__DynamicallyInvokable]
        public const sbyte MinValue = -128;

        public int CompareTo(object obj)
        {
            if (obj == null)
            {
                return 1;
            }
            if (!(obj is sbyte))
            {
                throw new ArgumentException(Environment.GetResourceString("Arg_MustBeSByte"));
            }
            return this - (sbyte)obj;
        }

        [__DynamicallyInvokable]
        public int CompareTo(sbyte value)
        {
            return this - value;
        }

        [__DynamicallyInvokable]
        public override bool Equals(object obj)
        {
            if (!(obj is sbyte))
            {
                return false;
            }
            return this == (sbyte)obj;
        }

        [NonVersionable]
        [__DynamicallyInvokable]
        public bool Equals(sbyte obj)
        {
            return this == obj;
        }

        [__DynamicallyInvokable]
        public override int GetHashCode()
        {
            return this ^ (this << 8);
        }

        [SecuritySafeCritical]
        [__DynamicallyInvokable]
        public override string ToString()
        {
            return Number.FormatInt32(this, null, NumberFormatInfo.CurrentInfo);
        }

        [SecuritySafeCritical]
        [__DynamicallyInvokable]
        public string ToString(IFormatProvider provider)
        {
            return Number.FormatInt32(this, null, NumberFormatInfo.GetInstance(provider));
        }

        [__DynamicallyInvokable]
        public string ToString(string format)
        {
            return ToString(format, NumberFormatInfo.CurrentInfo);
        }

        [__DynamicallyInvokable]
        public string ToString(string format, IFormatProvider provider)
        {
            return ToString(format, NumberFormatInfo.GetInstance(provider));
        }

        [SecuritySafeCritical]
        private string ToString(string format, NumberFormatInfo info)
        {
            if (this < 0 && format != null && format.Length > 0 && (format[0] == 'X' || format[0] == 'x'))
            {
                uint value = (uint)(this & 0xFF);
                return Number.FormatUInt32(value, format, info);
            }
            return Number.FormatInt32(this, format, info);
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static sbyte Parse(string s)
        {
            return Parse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo);
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static sbyte Parse(string s, NumberStyles style)
        {
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return Parse(s, style, NumberFormatInfo.CurrentInfo);
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static sbyte Parse(string s, IFormatProvider provider)
        {
            return Parse(s, NumberStyles.Integer, NumberFormatInfo.GetInstance(provider));
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static sbyte Parse(string s, NumberStyles style, IFormatProvider provider)
        {
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return Parse(s, style, NumberFormatInfo.GetInstance(provider));
        }

        private static sbyte Parse(string s, NumberStyles style, NumberFormatInfo info)
        {
            int num = 0;
            try
            {
                num = Number.ParseInt32(s, style, info);
            }
            catch (OverflowException innerException)
            {
                throw new OverflowException(Environment.GetResourceString("Overflow_SByte"), innerException);
            }
            if ((style & NumberStyles.AllowHexSpecifier) != 0)
            {
                if (num < 0 || num > 255)
                {
                    throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
                }
                return (sbyte)num;
            }
            if (num < -128 || num > 127)
            {
                throw new OverflowException(Environment.GetResourceString("Overflow_SByte"));
            }
            return (sbyte)num;
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static bool TryParse(string s, out sbyte result)
        {
            return TryParse(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static bool TryParse(string s, NumberStyles style, IFormatProvider provider, out sbyte result)
        {
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return TryParse(s, style, NumberFormatInfo.GetInstance(provider), out result);
        }

        private static bool TryParse(string s, NumberStyles style, NumberFormatInfo info, out sbyte result)
        {
            result = 0;
            if (!Number.TryParseInt32(s, style, info, out int result2))
            {
                return false;
            }
            if ((style & NumberStyles.AllowHexSpecifier) != 0)
            {
                if (result2 < 0 || result2 > 255)
                {
                    return false;
                }
                result = (sbyte)result2;
                return true;
            }
            if (result2 < -128 || result2 > 127)
            {
                return false;
            }
            result = (sbyte)result2;
            return true;
        }

        public TypeCode GetTypeCode()
        {
            return TypeCode.SByte;
        }

        [__DynamicallyInvokable]
        bool IConvertible.ToBoolean(IFormatProvider provider)
        {
            return Convert.ToBoolean(this);
        }

        [__DynamicallyInvokable]
        char IConvertible.ToChar(IFormatProvider provider)
        {
            return Convert.ToChar(this);
        }

        [__DynamicallyInvokable]
        sbyte IConvertible.ToSByte(IFormatProvider provider)
        {
            return this;
        }

        [__DynamicallyInvokable]
        byte IConvertible.ToByte(IFormatProvider provider)
        {
            return Convert.ToByte(this);
        }

        [__DynamicallyInvokable]
        short IConvertible.ToInt16(IFormatProvider provider)
        {
            return Convert.ToInt16(this);
        }

        [__DynamicallyInvokable]
        ushort IConvertible.ToUInt16(IFormatProvider provider)
        {
            return Convert.ToUInt16(this);
        }

        [__DynamicallyInvokable]
        int IConvertible.ToInt32(IFormatProvider provider)
        {
            return this;
        }

        [__DynamicallyInvokable]
        uint IConvertible.ToUInt32(IFormatProvider provider)
        {
            return Convert.ToUInt32(this);
        }

        [__DynamicallyInvokable]
        long IConvertible.ToInt64(IFormatProvider provider)
        {
            return Convert.ToInt64(this);
        }

        [__DynamicallyInvokable]
        ulong IConvertible.ToUInt64(IFormatProvider provider)
        {
            return Convert.ToUInt64(this);
        }

        [__DynamicallyInvokable]
        float IConvertible.ToSingle(IFormatProvider provider)
        {
            return Convert.ToSingle(this);
        }

        [__DynamicallyInvokable]
        double IConvertible.ToDouble(IFormatProvider provider)
        {
            return Convert.ToDouble(this);
        }

        [__DynamicallyInvokable]
        decimal IConvertible.ToDecimal(IFormatProvider provider)
        {
            return Convert.ToDecimal(this);
        }

        [__DynamicallyInvokable]
        DateTime IConvertible.ToDateTime(IFormatProvider provider)
        {
            throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", "SByte", "DateTime"));
        }

        [__DynamicallyInvokable]
        object IConvertible.ToType(Type type, IFormatProvider provider)
        {
            return Convert.DefaultToType(this, type, provider);
        }
    }
}