//
// This file is part of the Jlisp implementation of Standard Lisp
// Copyright \u00a9 (C) Codemist Ltd, 1998-2000.
//
import java.io.*;
abstract class BuiltinFunction extends LispFunction
{
void scan()
{
if (Jlisp.objects.contains(this)) // seen before?
{ if (!Jlisp.repeatedObjects.containsKey(this))
{ Jlisp.repeatedObjects.put(
this,
Jlisp.nil); // value is junk at this stage
}
}
else Jlisp.objects.add(this);
}
void dump() throws IOException
{
Object w = Jlisp.repeatedObjects.get(this);
if (w != null &&
w instanceof Integer) putSharedRef(w); // processed before
else
{ if (w != null) // will be used again sometime
{ Jlisp.repeatedObjects.put(
this,
new Integer(Jlisp.sharedIndex++));
Jlisp.odump.write(X_STORE);
}
byte [] rep = name.getBytes("UTF8");
int length = rep.length;
if (length <= 0xff)
{ Jlisp.odump.write(X_FNAME);
Jlisp.odump.write(length);
}
else throw new IOException("overlong name for a function");
for (int i=0; i<length; i++)
Jlisp.odump.write(rep[i]);
}
}
}
// End of BuiltinFunction.java