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Diffstat (limited to 'mcs/class/corlib/System/Boolean.cs')
| -rw-r--r-- | mcs/class/corlib/System/Boolean.cs | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/mcs/class/corlib/System/Boolean.cs b/mcs/class/corlib/System/Boolean.cs deleted file mode 100644 index 741471bcdb1..00000000000 --- a/mcs/class/corlib/System/Boolean.cs +++ /dev/null @@ -1,266 +0,0 @@ -// -// System.Boolean.cs -// -// Author: -// Derek Holden (dholden@draper.com) -// -// (C) Ximian, Inc. http://www.ximian.com -// - -// -// I guess this is the Boolean class. This was written word for word -// off the Library specification for System.Boolean in the ECMA -// TC39 TG2 and TG3 working documents. -// -// The XML style documentation isn't that elegant, but it seems to -// be the standard way according to the poorly documented C# -// Programmer's Reference section on XML Documentation. -// -// This header and the one above it can be formatted however, just trying -// to keep it consistent w/ the existing mcs headers. -// -// Even though it's not in the ECMA docs, the .NET Framework Class Library -// says this implements IConvertible, but if it does it has some other -// member functions to implement. -// - -using System.Globalization; -namespace System { - - /// <summary> - /// Represents the boolean values of logical true and false. - /// </summary> - [Serializable] - public struct Boolean : IComparable, IConvertible { - - /// <value> - /// The String representation of Boolean False - /// </value> - public static readonly string FalseString; - - /// <value> - /// The String representation of Boolean True - /// </value> - public static readonly string TrueString; - - /// <value> - /// Internal bool value for for this instance - /// </value> - // - // HACK: we tag it as public, so the source will compile. - public bool value; - - static Boolean () - { - FalseString = "False"; - TrueString = "True"; - } - - /// <summary> - /// Compares the current Boolean instance against another object. - /// </summary> - /// <remarks> - /// Throws an ArgumentException if <c>obj</c> isn't null or - /// a Boolean. - /// </remarks> - /// <param name="obj"> - /// The object to compare against - /// </param> - /// <returns> - /// An int reflecting the sort order of this instance as - /// compared to <c>obj</c> - /// -1 if this instance is false and <c>obj</c> is true - /// 0 if this instance is equal to <c>obj</c> - /// 1 if this instance is true and <c>obj</c> is false, - /// or <c>obj</c> is null - /// </returns> - public int CompareTo (object obj) - { - if (obj == null) - return 1; - - if (!(obj is System.Boolean)) - throw new ArgumentException - (Locale.GetText ("Object is not a Boolean and is not a null reference")); - - // for case #3 - if (obj == null || (value == true && (bool)obj == false)) - return 1; - - // for case #2, else it's #1 - return (value == (bool)obj) ? 0 : -1; - } - - /// <summary> - /// Determines whether this instance and another object represent the - /// same type and value. - /// </summary> - /// <param name="obj"> - /// The object to check against - /// </param> - /// <returns> - /// true if this instnace and <c>obj</c> are same value, - /// otherwise false if it is not or null - /// </returns> - public override bool Equals (Object obj) - { - if (obj == null || !(obj is System.Boolean)) - return false; - - return ((bool)obj) == value; - } - - /// <summary> - /// Generates a hashcode for this object. - /// </summary> - /// <returns> - /// An Int32 value holding the hash code - /// </returns> - public override int GetHashCode () - { - // Guess there's not too many ways to hash a Boolean - return value ? 1 : 0; - } - - /// <summary> - /// Returns a given string as a boolean value. The string must be - /// equivalent to either TrueString or FalseString, with leading and/or - /// trailing spaces, and is parsed case-insensitively. - /// </summary> - /// <remarks> - /// Throws an ArgumentNullException if <c>val</c> is null, or a - /// FormatException if <c>val</c> doesn't match <c>TrueString</c> - /// or <c>FalseString</c> - /// </remarks> - /// <param name="val"> - /// The string value to parse - /// </param> - /// <returns> - /// true if <c>val</c> is equivalent to TrueString, - /// otherwise false - /// </returns> - public static bool Parse (string val) - { - if (val == null) - throw new ArgumentNullException ( - Locale.GetText ("Value is a null reference")); - - val = val.Trim (); - - if (String.Compare (val, TrueString, true) == 0) - return true; - - if (String.Compare (val, FalseString, true) == 0) - return false; - - throw new FormatException (Locale.GetText ( - "Value is not equivalent to either TrueString or FalseString")); - } - - /// <summary> - /// Returns a string representation of this Boolean object. - /// </summary> - /// <returns> - /// <c>FalseString</c> if the instance value is false, otherwise - /// <c>TrueString</c> - /// </returns> - public override string ToString () - { - return value ? TrueString : FalseString; - } - - // =========== IConvertible Methods =========== // - - public TypeCode GetTypeCode () - { - return TypeCode.Boolean; - } - - object IConvertible.ToType (Type conversionType, IFormatProvider provider) - { - return System.Convert.ToType(value, conversionType, provider); - } - - bool IConvertible.ToBoolean (IFormatProvider provider) - { - return value; - } - - byte IConvertible.ToByte (IFormatProvider provider) - { - return System.Convert.ToByte(value); - } - - char IConvertible.ToChar (IFormatProvider provider) - { - throw new InvalidCastException(); - } - - [CLSCompliant(false)] - DateTime IConvertible.ToDateTime (IFormatProvider provider) - { - throw new InvalidCastException(); - } - - decimal IConvertible.ToDecimal (IFormatProvider provider) - { - return System.Convert.ToDecimal(value); - } - - double IConvertible.ToDouble (IFormatProvider provider) - { - return System.Convert.ToDouble(value); - } - - short IConvertible.ToInt16 (IFormatProvider provider) - { - return System.Convert.ToInt16(value); - } - - int IConvertible.ToInt32 (IFormatProvider provider) - { - return System.Convert.ToInt32(value); - } - - long IConvertible.ToInt64 (IFormatProvider provider) - { - return System.Convert.ToInt64(value); - } - - [CLSCompliant(false)] - sbyte IConvertible.ToSByte (IFormatProvider provider) - { - return System.Convert.ToSByte(value); - } - - float IConvertible.ToSingle (IFormatProvider provider) - { - return System.Convert.ToSingle(value); - } - - public string ToString (IFormatProvider provider) - { - return ToString(); - } - - [CLSCompliant(false)] - ushort IConvertible.ToUInt16 (IFormatProvider provider) - { - return System.Convert.ToUInt16(value); - } - - [CLSCompliant(false)] - uint IConvertible.ToUInt32 (IFormatProvider provider) - { - return System.Convert.ToUInt32(value); - } - - [CLSCompliant(false)] - ulong IConvertible.ToUInt64 (IFormatProvider provider) - { - return System.Convert.ToUInt64(value); - } - - } // System.Boolean - -} // Namespace System |