sisc.env
Class Parameter

java.lang.Object
  sisc.util.Util
      sisc.data.Expression
          sisc.data.Value
              sisc.data.Procedure
                  sisc.env.Parameter

All Implemented Interfaces:

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

Direct Known Subclasses:

NativeParameter, SchemeParameter

public abstract class Parameter
extends Procedure

See Also:

Serialized Form

Field Summary

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

Parameter()

Method Summary

void	apply(Interpreter r) Called when applying this procedure to a number of arguments in the Interpreter's vlr register.
abstract Value	getValue(Interpreter r) Called to obtain the value of this Value.
abstract void	setValue(Interpreter r, Value v)

Methods inherited from class sisc.data.Procedure

error, throwArgSizeException, throwNestedPrimException, throwNestedPrimException, throwPrimException

Methods inherited from class sisc.data.Value

display, displayNamedOpaque, equals, eqv, eval, express, synopsis, synopsis, toString, valueEqual, valueHashCode, write, writeReplace

Methods inherited from class sisc.data.Expression

deserialize, deserializeAnnotations, getAnnotation, getAnnotation, getAnnotationKeys, getAnnotations, getName, readExternal, readResolve, serialize, serializeAnnotations, setAnnotation, setAnnotation, setName, visit, 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

Constructor Detail

Parameter

public Parameter()

Method Detail

getValue

public abstract Value getValue(Interpreter r)
                        throws ContinuationException

Description copied from class: Value

Called to obtain the value of this Value. Simply this.

Specified by:

getValue in interface Immediate

Overrides:

getValue in class Value

Parameters:

r - the Interpreter

Returns:

the immediate value of this expression, or null if the value cannot be obtained immediately.

Throws:

ContinuationException

setValue

public abstract void setValue(Interpreter r,
                              Value v)
                       throws ContinuationException

Throws:

ContinuationException

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