gnu.kawa.functions
Class ConstantFunction0

java.lang.Object
  gnu.mapping.PropertySet
      gnu.mapping.Procedure
          gnu.mapping.Procedure0
              gnu.kawa.functions.ConstantFunction0

All Implemented Interfaces:

CanInline, Named

public class ConstantFunction0
extends Procedure0
implements CanInline

A 0-argument function that returns a constant value. Used for false() and true() in XQuery.

Constructor Summary

ConstantFunction0(java.lang.String name, java.lang.Object value)

ConstantFunction0(java.lang.String name, QuoteExp constant)

Method Summary

java.lang.Object	apply0()
Expression	inline(ApplyExp exp, ExpWalker walker) Inline an application of this Procedure and return result.

Methods inherited from class gnu.mapping.Procedure0

apply1, apply2, apply3, apply4, applyN, numArgs

Methods inherited from class gnu.mapping.Procedure

apply, apply, check0, check1, check2, check3, check4, checkArgCount, checkN, getSetter, getSourceLocation, match0, match1, match2, match3, match4, matchN, maxArgs, minArgs, set0, set1, setN, setSetter, setSourceLocation, toString

Methods inherited from class gnu.mapping.PropertySet

getName, getProperty, getSymbol, removeProperty, setName, setProperty, setProperty, setSymbol

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstantFunction0

public ConstantFunction0(java.lang.String name,
                         java.lang.Object value)

ConstantFunction0

public ConstantFunction0(java.lang.String name,
                         QuoteExp constant)

Method Detail

apply0

public java.lang.Object apply0()

Specified by:

apply0 in class Procedure0

inline

public Expression inline(ApplyExp exp,
                         ExpWalker walker)

Description copied from interface: CanInline

Inline an application of this Procedure and return result. Can return original expression.

Specified by:

inline in interface CanInline