gnu.expr

Class ErrorExp

Implemented Interfaces:
Named, Printable

public class ErrorExp
extends Expression

Class used to mark an erroneous expression

Field Summary

Fields inherited from class gnu.expr.Expression

NEXT_AVAIL_FLAG, flags, noExpressions

Constructor Summary

ErrorExp(String message)

Method Summary

void
compile(Compilation comp, Target target)
Object
eval(Environment env)
void
print(OutPort out)

Methods inherited from class gnu.expr.Expression

apply, apply0, compile, compile, compileButFirst, compileNotePosition, compileWithPosition, compileWithPosition, eval, eval, getColumn, getFile, getFlag, getFlags, getLine, getType, makeWhile, match0, print, print, printLineColumn, setFile, setFlag, setFlag, setLine, setLine, setLine, setLine, walk, walkChildren

Methods inherited from class gnu.mapping.Procedure0

apply0, apply1, apply2, apply3, apply4, applyN, numArgs

Methods inherited from class gnu.mapping.Procedure

apply, apply, apply0, apply1, apply2, apply3, apply4, applyN, check0, check1, check2, check3, check4, checkArgCount, checkN, getName, getProperty, getSetter, getSymbol, match0, match1, match2, match3, match4, matchN, maxArgs, minArgs, name, numArgs, removeProperty, set0, set1, setN, setName, setProperty, setProperty, setSetter, setSymbol, toString

Constructor Details

ErrorExp

public ErrorExp(String message)

Method Details

compile

public void compile(Compilation comp,
                    Target target)
Overrides:
compile in interface Expression

eval

public Object eval(Environment env)
Overrides:
eval in interface Expression

print

public void print(OutPort out)
Overrides:
print in interface Expression