gnu.expr
Class BuiltinEnvironment

java.lang.Object
  gnu.mapping.Procedure
      gnu.mapping.Procedure1
          gnu.mapping.NameMap
              gnu.mapping.Environment
                  gnu.expr.BuiltinEnvironment

All Implemented Interfaces:

HasSetter, Named

public class BuiltinEnvironment
extends Environment

An Environment containing the default bindings for the current Language. All lookup operatiosn are indirected to the current Language.

Field Summary

Fields inherited from class gnu.mapping.Environment

INDIRECT_DEFINES

Constructor Summary

BuiltinEnvironment()

Method Summary

NamedLocation	addLocation(Symbol name, java.lang.Object prop, Location loc)
void	define(Symbol key, java.lang.Object property, java.lang.Object newValue)
LocationEnumeration	enumerateAllLocations() Does enumerate inherited Locations.
LocationEnumeration	enumerateLocations() Does not enumerate inherited Locations.
static BuiltinEnvironment	getInstance()
Environment	getLangEnvironment()
NamedLocation	getLocation(Symbol key, java.lang.Object property, int hash, boolean create)
protected boolean	hasMoreElements(LocationEnumeration it)
NamedLocation	lookup(Symbol name, java.lang.Object property, int hash)

Methods inherited from class gnu.mapping.Environment

addLocation, addLocation, containsKey, current, defaultNamespace, get, get, get, get, get, getCanDefine, getCanRedefine, getCurrent, getFlags, getFunction, getFunction, getGlobal, getInstance, getLocation, getLocation, getLocation, getLocation, getSymbol, isBound, isBound, isLocked, lookup, lookup, make, make, make, put, put, put, put, putFunction, remove, remove, remove, remove, remove, removeFunction, setCanDefine, setCanRedefine, setCurrent, setFlag, setGlobal, setIndirectDefines, setLocked, toString, toStringVerbose, unlink, user

Methods inherited from class gnu.mapping.NameMap

apply1, getChecked, set1

Methods inherited from class gnu.mapping.Procedure1

apply0, apply2, apply3, apply4, applyN, numArgs

Methods inherited from class gnu.mapping.Procedure

apply, apply, check0, check1, check2, check3, check4, checkArgCount, checkN, getName, getProperty, getSetter, getSymbol, match0, match1, match2, match3, match4, matchN, maxArgs, minArgs, name, removeProperty, set0, setN, setName, setProperty, setProperty, setSetter, setSymbol

Methods inherited from class java.lang.Object

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

Methods inherited from interface gnu.mapping.HasSetter

getSetter

Constructor Detail

BuiltinEnvironment

public BuiltinEnvironment()

Method Detail

getInstance

public static BuiltinEnvironment getInstance()

getLangEnvironment

public Environment getLangEnvironment()

lookup

public NamedLocation lookup(Symbol name,
                            java.lang.Object property,
                            int hash)

Specified by:

lookup in class Environment

getLocation

public NamedLocation getLocation(Symbol key,
                                 java.lang.Object property,
                                 int hash,
                                 boolean create)

Specified by:

getLocation in class Environment

define

public void define(Symbol key,
                   java.lang.Object property,
                   java.lang.Object newValue)

Specified by:

define in class Environment

enumerateLocations

public LocationEnumeration enumerateLocations()

Description copied from class: Environment

Does not enumerate inherited Locations.

Specified by:

enumerateLocations in class Environment

enumerateAllLocations

public LocationEnumeration enumerateAllLocations()

Description copied from class: Environment

Does enumerate inherited Locations.

Specified by:

enumerateAllLocations in class Environment

hasMoreElements

protected boolean hasMoreElements(LocationEnumeration it)

Specified by:

hasMoreElements in class Environment

addLocation

public NamedLocation addLocation(Symbol name,
                                 java.lang.Object prop,
                                 Location loc)

Specified by:

addLocation in class Environment