sisc.data

Class Closure

java.lang.Object

sisc.util.Util

sisc.data.Expression

sisc.data.Value

sisc.data.Procedure

sisc.data.Closure

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, Immediate, NamedValue, ExpressionVisitee, Version

public class Closure
extends Procedure
implements NamedValue

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
boolean	arity
Expression	body
int[]	boxes
Value[]	env
int	fcount

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

Constructors

Constructor and Description
Closure()
Closure(boolean arity, int fcount, Expression body, Value[] env, int[] boxes)

Method Summary

Methods

Modifier and Type	Method and Description
void	apply(Interpreter r) Called when applying this procedure to a number of arguments in the Interpreter's vlr register.
void	deserialize(Deserializer s) All Expressions must implement a default (no-argument) constructor.
void	display(ValueWriter w)
Value	express() A debugging function, express returns a Scheme value that describes this expression.
void	serialize(Serializer s) All Expressions must implement a default (no-argument) constructor.
boolean	visit(ExpressionVisitor v)

Methods inherited from class sisc.data.Procedure

error, throwArgSizeException, throwNestedPrimException, throwNestedPrimException, throwPrimException

Methods inherited from class sisc.data.Value

displayNamedOpaque, equals, eqv, eval, getValue, synopsis, synopsis, toString, valueEqual, valueHashCode, write, writeReplace

Methods inherited from class sisc.data.Expression

deserializeAnnotations, getAnnotation, getAnnotation, getAnnotationKeys, getAnnotations, getName, readExternal, readResolve, serializeAnnotations, setAnnotation, 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

Methods inherited from interface sisc.data.NamedValue

getName, setName

Field Detail

arity

public boolean arity

fcount

public int fcount

boxes

public int[] boxes

env

public Value[] env

body

public Expression body

Constructor Detail

Closure

public Closure(boolean arity,
       int fcount,
       Expression body,
       Value[] env,
       int[] boxes)

Closure

public Closure()

Method Detail

apply

public void apply(Interpreter r)
           throws ContinuationException

Description copied from class: Procedure

Called when applying this procedure to a number of arguments in the Interpreter's vlr register. The code can return a value by setting the Interpreter's acc register and/or cause additional expressions to be evaluated by setting the Interpreter's nxp register.

Specified by:

apply in class Procedure

Parameters:

r - the Interpreter

Throws:

ContinuationException

display

public void display(ValueWriter w)
             throws java.io.IOException

Specified by:

display in class Value

Throws:

java.io.IOException

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

express

public Value express()

Description copied from class: Expression

A debugging function, express returns a Scheme value that describes this expression. See examples in sisc.exprs.*

Overrides:

express in class Value

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