// Fingerprinting
public override Fingerprint GetFingerprint(IBuildContext ctxt, Fingerprint cached)
{
DateTime ondisk = GetModTime(ctxt);
Fingerprint result;
if (cached != null && modtime == ondisk)
{
result = cached;
}
else
{
// FIXME: right way to do this ???? Not sure at all
result = Fingerprint.FromText(ToString(Storage) + subpath);
}
modtime = ondisk;
return(result);
}
// Fingerprint
public override Fingerprint GetFingerprint(IBuildContext ctxt, Fingerprint cached)
{
return(Fingerprint.FromText(value));
}
public static Fingerprint GetFingerprint(object o, IBuildContext ctxt, Fingerprint cached)
{
if (o == null)
{
return(Null);
}
if (o is IFingerprintable)
{
return((o as IFingerprintable).GetFingerprint(ctxt, cached));
}
if (o is Boolean)
{
return(Constant(BitConverter.GetBytes((bool)o)));
}
if (o is Byte)
{
return(Constant(BitConverter.GetBytes((byte)o)));
}
if (o is Char)
{
return(Constant(BitConverter.GetBytes((char)o)));
}
if (o is Int16)
{
return(Constant(BitConverter.GetBytes((short)o)));
}
if (o is Int32)
{
return(Constant(BitConverter.GetBytes((int)o)));
}
if (o is Int64)
{
return(Constant(BitConverter.GetBytes((long)o)));
}
if (o is UInt16)
{
return(Constant(BitConverter.GetBytes((ushort)o)));
}
if (o is UInt32)
{
return(Constant(BitConverter.GetBytes((uint)o)));
}
if (o is UInt64)
{
return(Constant(BitConverter.GetBytes((ulong)o)));
}
if (o is Single)
{
return(Constant(BitConverter.GetBytes((float)o)));
}
if (o is Double)
{
return(Constant(BitConverter.GetBytes((double)o)));
}
if (o is String)
{
return(Fingerprint.FromText((string)o));
}
throw new Exception(String.Format("Don't know how to get a fingerprint from object of type {0}",
o.GetType()));
}
