/// <summary>
/// Compares two objects for equality. Used by the equality operator (==).
/// </summary>
/// <param name="x"> The first object to compare. </param>
/// <param name="y"> The first object to compare. </param>
/// <returns> <c>true</c> if the objects are identical; <c>false</c> otherwise. </returns>
public new static bool Equals(object x, object y)
{
x = x ?? Undefined.Value;
y = y ?? Undefined.Value;
if (x is int)
{
x = (double)(int)x;
}
if (x is uint)
{
x = (double)(uint)x;
}
if (y is int)
{
y = (double)(int)y;
}
if (y is uint)
{
y = (double)(uint)y;
}
if (x is ConcatenatedString)
{
x = x.ToString();
}
if (y is ConcatenatedString)
{
y = y.ToString();
}
if (x.GetType() == y.GetType())
{
if (x is double && double.IsNaN((double)x) == true)
{
return(false);
}
return(object.Equals(x, y));
}
if ((x == Undefined.Value && y == Null.Value) || (x == Null.Value && y == Undefined.Value))
{
return(true);
}
// 5.5 == "5.5"
if (TypeUtilities.IsNumeric(x) && TypeUtilities.IsString(y))
{
return(TypeConverter.ToNumber(x) == TypeConverter.ToNumber(y));
}
if (TypeUtilities.IsString(x) && TypeUtilities.IsNumeric(y))
{
return(TypeConverter.ToNumber(x) == TypeConverter.ToNumber(y));
}
// false == 0, true == 1
if (x is bool)
{
return(Equals(TypeConverter.ToNumber(x), y));
}
if (y is bool)
{
return(Equals(x, TypeConverter.ToNumber(y)));
}
// false == new Boolean(false), 1.5 == new Number(1.5)
if (TypeUtilities.IsNumeric(x) && y is Jurassic.Library.ObjectInstance)
{
return(Equals(x, TypeConverter.ToPrimitive(y, PrimitiveTypeHint.None)));
}
if (TypeUtilities.IsString(x) && y is Jurassic.Library.ObjectInstance)
{
return(Equals(x, TypeConverter.ToPrimitive(y, PrimitiveTypeHint.None)));
}
if (x is Jurassic.Library.ObjectInstance && TypeUtilities.IsNumeric(y))
{
return(Equals(TypeConverter.ToPrimitive(x, PrimitiveTypeHint.None), y));
}
if (x is Jurassic.Library.ObjectInstance && TypeUtilities.IsString(y))
{
return(Equals(TypeConverter.ToPrimitive(x, PrimitiveTypeHint.None), y));
}
return(false);
}