sisc.interpreter
Class CallFrame

java.lang.Object
  sisc.util.Util
      sisc.data.Expression
          sisc.data.Value
              sisc.data.Procedure
                  sisc.interpreter.CallFrame

All Implemented Interfaces:

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

public class CallFrame
extends Procedure

See Also:

Serialized Form

Field Summary

Value[]	env
CallFrame	fk
Value[]	lcl
Expression	nxp
CallFrame	parent
SymbolicEnvironment	tpl
StackTracer	tracer
boolean	vlk
Value[]	vlr

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

CallFrame()

CallFrame(Expression n, Value[] v, boolean vk, Value[] l, Value[] e, SymbolicEnvironment t, CallFrame f, CallFrame p, StackTracer tr)

Method Summary

void	apply(Interpreter r) Called when applying this procedure to a number of arguments in the Interpreter's vlr register.
CallFrame	capture(Interpreter r)
void	clear()
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	init(Expression n, Value[] v, boolean vk, Value[] l, Value[] e, SymbolicEnvironment t, CallFrame f, CallFrame p, StackTracer tr)
void	serialize(Serializer s) All Expressions must implement a default (no-argument) constructor.
boolean	visit(ExpressionVisitor v)
static boolean	visitValueArray(ExpressionVisitor v, Value[] va)

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

Field Detail

nxp

public Expression nxp

vlr

public Value[] vlr

lcl

public Value[] lcl

env

public Value[] env

vlk

public boolean vlk

fk

public CallFrame fk

parent

public CallFrame parent

tpl

public SymbolicEnvironment tpl

tracer

public StackTracer tracer

Constructor Detail

CallFrame

public CallFrame(Expression n,
                 Value[] v,
                 boolean vk,
                 Value[] l,
                 Value[] e,
                 SymbolicEnvironment t,
                 CallFrame f,
                 CallFrame p,
                 StackTracer tr)

CallFrame

public CallFrame()

Method Detail

init

public final void init(Expression n,
                       Value[] v,
                       boolean vk,
                       Value[] l,
                       Value[] e,
                       SymbolicEnvironment t,
                       CallFrame f,
                       CallFrame p,
                       StackTracer tr)

clear

public final void clear()

capture

public final CallFrame capture(Interpreter r)

display

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

Specified by:

display in class Value

Throws:

java.io.IOException

visitValueArray

public static boolean visitValueArray(ExpressionVisitor v,
                                      Value[] va)

visit

public boolean visit(ExpressionVisitor v)

Specified by:

visit in interface ExpressionVisitee

Overrides:

visit in class Expression

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

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

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