sisc.data
Class ExpressionValue

java.lang.Object
  extended by sisc.util.Util
      extended by sisc.data.Expression
          extended by sisc.data.Value
              extended by sisc.data.ExpressionValue
All Implemented Interfaces:
java.io.Externalizable, java.io.Serializable, Immediate, ExpressionVisitee, Version

public class ExpressionValue
extends Value

See Also:
Serialized Form

Field Summary
 Expression e
           
 
Fields inherited from class sisc.data.Expression
annotations, EMPTYSET
 
Fields inherited from class sisc.util.Util
BACKQUOTE, BEGIN, bundles, caseSensitive, EMPTYLIST, EMPTYVEC, EOF, ERRORK, EVAL, EXPSC, EXPTOP, FALSE, FCONT, FIVE, JEXCEPTION, LAMBDA, LOCATION, maxFloatPrecision, MESSAGE, minFloatPrecision, NAME, OTHER, PARENT, permitInterrupts, QUOTE, QUOTESYM, REPORT, SETBANG, SISC, SISC_SPECIFIC, SISCB, SOURCE_COLUMN, SOURCE_FILE, SOURCE_LINE, SYMENV, THIS, TOPLEVEL, TRUE, UNQUOTE, UNQUOTE_SPLICING, VOID, ZV
 
Fields inherited from interface sisc.util.Version
VERSION
 
Constructor Summary
ExpressionValue(Expression e)
           
 
Method Summary
 void deserialize(Deserializer s)
          All Expressions must implement a default (no-argument) constructor.
 void display(ValueWriter w)
           
 Value getAnnotation(Symbol key)
           
 java.util.Set getAnnotationKeys()
           
 Pair getAnnotations()
           
 void serialize(Serializer s)
          All Expressions must implement a default (no-argument) constructor.
 Value setAnnotation(Symbol key, Value v)
           
 boolean valueEqual(Value v)
          Compares this value to another for semantic equality.
 int valueHashCode()
          a hashCode function consistent with valueEqual
 boolean visit(ExpressionVisitor v)
           
 
Methods inherited from class sisc.data.Value
apply, displayNamedOpaque, equals, eqv, eval, express, getValue, synopsis, synopsis, toString, write, writeReplace
 
Methods inherited from class sisc.data.Expression
deserializeAnnotations, getAnnotation, getName, readExternal, readResolve, serializeAnnotations, setAnnotation, setName, visitAnnotations, writeExternal
 
Methods inherited from class sisc.util.Util
annotated, annotatedAppEval, append, argCheck, argsToSymbols, assq, bininport, bininstream, binoutport, binoutstream, box, character, charinport, charinreader, charoutport, charoutwriter, charsetFromString, chr, cont, currentClassLoader, env, error, error, error, error, error, error, error, expr, getDefaultCharacterSet, immutablePair, immutableVector, inport, javaExceptionToString, javaWrap, justify, length, liMessage, liMessage, liMessage, liMessage, liMessage, liMessage, liMessage, list, list, list, list, list, makeURL, mapcar, memq, nlib, num, outport, pair, pairToExpressions, pairToExpVect, pairToValues, proc, read, registerBundle, reverse, reverseInPlace, simpleErrorToString, sourceAnnotations, str, string, sym, symbol, symval, truePair, truth, truth, typeError, typeError, updateName, url, url, url, valArrayToList, valArrayToList, valArrayToVec, vec, warn, warn, warn
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

e

public Expression e
Constructor Detail

ExpressionValue

public ExpressionValue(Expression e)
Method Detail

setAnnotation

public Value setAnnotation(Symbol key,
                           Value v)
Overrides:
setAnnotation in class Expression

getAnnotationKeys

public java.util.Set getAnnotationKeys()
Overrides:
getAnnotationKeys in class Expression

getAnnotations

public Pair getAnnotations()
Overrides:
getAnnotations in class Expression

getAnnotation

public Value getAnnotation(Symbol key)
Overrides:
getAnnotation in class Expression

display

public void display(ValueWriter w)
             throws java.io.IOException
Specified by:
display in class Value
Throws:
java.io.IOException

valueHashCode

public int valueHashCode()
Description copied from class: Value
a hashCode function consistent with valueEqual

Overrides:
valueHashCode in class Value
Returns:
hash code

valueEqual

public boolean valueEqual(Value v)
Description copied from class: Value
Compares this value to another for semantic equality. Used to implement Scheme's 'equal?'. Subclasses must test for pointer equality as well as semantic equality, so that infinite loops on recursive structures are less likely.

Overrides:
valueEqual in class Value
Parameters:
v - the other Value

serialize

public void serialize(Serializer s)
               throws java.io.IOException
Description copied from class: Expression
All Expressions must implement a default (no-argument) constructor. Those that wish to be serialized to a heap must implement both this and the deserialize method. The Expression may use any method of the Serializer, which implements java.io.DataOutput to write its state.

Overrides:
serialize in class Expression
Parameters:
s - the Serializer
Throws:
java.io.IOException

deserialize

public void deserialize(Deserializer s)
                 throws java.io.IOException
Description copied from class: Expression
All Expressions must implement a default (no-argument) constructor. Those that wish to b serialized to a heap must implement both this and the serialize method. The Expression may use any method of the DataInput stream and the Deserializer serialization context to read its state.

Overrides:
deserialize in class Expression
Parameters:
s - the Deserializer
Throws:
java.io.IOException

visit

public boolean visit(ExpressionVisitor v)
Specified by:
visit in interface ExpressionVisitee
Overrides:
visit in class Expression