public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) ||
options.HasFlag(ETypeCreationOptions.NonZero))
{
if (template == null)
{
return(Unsigned.One);
}
else
{
var unsigned = (Unsigned)template;
return(Unsigned.FromUInt(1, unsigned.Size));
}
}
else
{
if (template == null)
{
return(Unsigned.Zero);
}
else
{
var unsigned = (Unsigned)template;
return(Unsigned.FromUInt(0, unsigned.Size));
}
}
}
public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) ||
options.HasFlag(ETypeCreationOptions.NonZero))
{
if (template == null)
{
return Signed.One;
}
else
{
var signed = (Signed)template;
return Signed.FromInt(1, signed.Size);
}
}
else
{
if (template == null)
{
return Signed.Zero;
}
else
{
var signed = (Signed)template;
return Signed.FromInt(0, signed.Size);
}
}
}
public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) ||
options.HasFlag(ETypeCreationOptions.NonZero))
return (ushort)1;
else
return (ushort)0;
}
public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral))
{
return(1.0);
}
else
{
return(0.0);
}
}
public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) ||
options.HasFlag(ETypeCreationOptions.NonZero))
{
return((ushort)1);
}
else
{
return((ushort)0);
}
}
public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral))
{
if (template == null)
{
return UFix.One;
}
else
{
var ufix = (UFix)template;
return UFix.FromDouble(1.0, ufix.Format.IntWidth, ufix.Format.FracWidth);
}
}
else if (options.HasFlag(ETypeCreationOptions.NonZero))
{
if (template == null)
{
return UFix.One;
}
else
{
var ufix = (UFix)template;
return UFix.FromUnsigned(Unsigned.FromUInt(1, ufix.Format.TotalWidth), ufix.Format.FracWidth);
}
}
else
{
if (template == null)
{
return UFix.Zero;
}
else
{
var ufix = (UFix)template;
return UFix.FromDouble(0.0, ufix.Format.IntWidth, ufix.Format.FracWidth);
}
}
}
public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral))
{
if (template == null)
{
return(SFix.One);
}
else
{
var sfix = (SFix)template;
return(SFix.FromDouble(1.0, sfix.Format.IntWidth, sfix.Format.FracWidth));
}
}
else if (options.HasFlag(ETypeCreationOptions.NonZero))
{
if (template == null)
{
return(SFix.One);
}
else
{
var sfix = (SFix)template;
return(SFix.FromSigned(Signed.FromInt(1, sfix.Format.TotalWidth), sfix.Format.FracWidth));
}
}
else
{
if (template == null)
{
return(SFix.Zero);
}
else
{
var sfix = (SFix)template;
return(SFix.FromDouble(0.0, sfix.Format.IntWidth, sfix.Format.FracWidth));
}
}
}
/// <summary>
/// Creates a sample instance of the described type.
/// </summary>
/// <param name="options">creation options</param>
public object GetSampleInstance(ETypeCreationOptions options = ETypeCreationOptions.AnyObject)
{
Contract.Requires(
!(options.HasFlag(ETypeCreationOptions.AdditiveNeutral) && options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral)) &&
!(options.HasFlag(ETypeCreationOptions.AdditiveNeutral) && options.HasFlag(ETypeCreationOptions.NonZero)) &&
!(options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) && options.HasFlag(ETypeCreationOptions.NonZero)));
if (IsArtificial)
{
throw new InvalidOperationException("Cannot construct a sample instance from an artificial type");
}
if (options.HasFlag(ETypeCreationOptions.AdditiveNeutral) ||
options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) ||
options.HasFlag(ETypeCreationOptions.NonZero))
{
var atf = CILType.GetCustomOrInjectedAttribute <IAlgebraicTypeFactory>();
return(atf.CreateInstance(options, _sample));
}
if (_sample != null)
{
return(_sample);
}
if (options.HasFlag(ETypeCreationOptions.ReturnNullIfUnavailable))
{
return(null);
}
if (!options.HasFlag(ETypeCreationOptions.ForceCreation) && (IsConstrained || !IsStatic))
{
throw new InvalidOperationException("Cannot construct sample instance from constrained incomplete or non-static type");
}
object inst = Activator.CreateInstance(CILType);
return(inst);
}
/// <summary>
/// Creates a sample instance of the described type.
/// </summary>
/// <param name="options">creation options</param>
public object GetSampleInstance(ETypeCreationOptions options = ETypeCreationOptions.AnyObject)
{
Contract.Requires(
!(options.HasFlag(ETypeCreationOptions.AdditiveNeutral) && options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral)) &&
!(options.HasFlag(ETypeCreationOptions.AdditiveNeutral) && options.HasFlag(ETypeCreationOptions.NonZero)) &&
!(options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) && options.HasFlag(ETypeCreationOptions.NonZero)));
if (IsArtificial)
throw new InvalidOperationException("Cannot construct a sample instance from an artificial type");
if (options.HasFlag(ETypeCreationOptions.AdditiveNeutral) ||
options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral) ||
options.HasFlag(ETypeCreationOptions.NonZero))
{
var atf = CILType.GetCustomOrInjectedAttribute<IAlgebraicTypeFactory>();
return atf.CreateInstance(options, _sample);
}
if (_sample != null)
return _sample;
if (options.HasFlag(ETypeCreationOptions.ReturnNullIfUnavailable))
return null;
if (!options.HasFlag(ETypeCreationOptions.ForceCreation) && (IsConstrained || !IsStatic))
throw new InvalidOperationException("Cannot construct sample instance from constrained incomplete or non-static type");
object inst = Activator.CreateInstance(CILType);
return inst;
}
/// <summary> /// Creates a value. /// </summary> /// <param name="options">creation options</param> /// <param name="template">exemplary value of another instance</param> /// <returns>a value according to the creation options</returns> public abstract object CreateInstance(ETypeCreationOptions options, object template);
public override object CreateInstance(ETypeCreationOptions options, object template)
{
if (options.HasFlag(ETypeCreationOptions.MultiplicativeNeutral))
return 1.0;
else
return 0.0;
}
/// <summary> /// Creates a value. /// </summary> /// <param name="options">creation options</param> /// <param name="template">exemplary value of another instance</param> /// <returns>a value according to the creation options</returns> public abstract object CreateInstance(ETypeCreationOptions options, object template);
