edu.vub.at.objects.natives
Class NATFraction

java.lang.Object
  edu.vub.at.objects.natives.NATNil
      edu.vub.at.objects.natives.NATByCopy
          edu.vub.at.objects.natives.grammar.NATAbstractGrammar
              edu.vub.at.objects.natives.grammar.AGExpression
                  edu.vub.at.objects.natives.NATNumeric
                      edu.vub.at.objects.natives.NATFraction

All Implemented Interfaces:

ATAbstractGrammar, ATConversions, ATExpression, ATFraction, ATNil, ATNumeric, ATObject, ATStatement, java.io.Serializable

public final class NATFraction

extends NATNumeric

implements ATFraction

The native implementation of an AmbientTalk fraction. A fraction is implemented by a Java double.

Author:

tvc

See Also:

Serialized Form

Field Summary

static NATFraction	INFTY
double	javaValue

Fields inherited from class edu.vub.at.objects.natives.NATNil

_INSTANCE_

Constructor Summary

private

NATFraction(double javaFrc)

Method Summary

NATFraction	asNativeFraction()
static NATFraction	atValue(double javaFrc) This method currently serves as a hook for fraction creation.
ATNumeric	base__opdiv_(ATNumeric other)
ATNumeric	base__opltx__opeql__opgtx_(ATNumeric other)
ATNumeric	base__opmns_(ATNumeric other)
ATNumeric	base__oppls_(ATNumeric other)
ATNumeric	base__optms_(ATNumeric other)
ATNumeric	base_abs() FRC(n).abs() => FRC(abs(n))
ATNumeric	base_addFraction(ATFraction other)
ATNumeric	base_addNumber(ATNumber other)
ATNumber	base_ceiling() FRC(n).ceiling() => NBR(ceil(n))
ATNumeric	base_dec() FRC(n).dec() => FRC(n-1)
ATNumeric	base_divideFraction(ATFraction other)
ATNumeric	base_divideNumber(ATNumber other)
ATNumber	base_floor() FRC(n).floor() => NBR(floor(n))
ATNumeric	base_gequalsFraction(ATFraction other)
ATNumeric	base_gequalsNumber(ATNumber other)
ATNumeric	base_inc() FRC(n).inc() => FRC(n+1)
ATNumber	base_round() FRC(n).round() => NBR(round(n))
ATNumeric	base_subtractFraction(ATFraction other)
ATNumeric	base_subtractNumber(ATNumber other)
ATNumeric	base_timesFraction(ATFraction other)
ATNumeric	base_timesNumber(ATNumber other)
boolean	equals(java.lang.Object other) By default, two AmbientTalk objects are equal if they are the same object, or one is a proxy for the same object.
protected double	getJavaValue() Template method that should return the value of the underlying number or fraction as a double
ATTable	meta_getStripes() Returns the stripes of this object.
NATText	meta_print() Prints out the object in a human-readable way.

Methods inherited from class edu.vub.at.objects.natives.NATNumeric

asNativeNumeric, base__opeql_, base__opgtx__opeql_, base__opgtx_, base__opltx__opeql_, base__opltx_, base__opnot__opeql_, base_cos, base_expt, base_log, base_sin, base_sqrt, base_tan

Methods inherited from class edu.vub.at.objects.natives.grammar.AGExpression

base_asExpression

Methods inherited from class edu.vub.at.objects.natives.NATByCopy

meta_pass, meta_resolve

Methods inherited from class edu.vub.at.objects.natives.NATNil

asAmbientTalkObject, asJavaClassUnderSymbiosis, asJavaObjectUnderSymbiosis, asNativeBoolean, asNativeException, asNativeFarReference, asNativeNumber, asNativeTable, asNativeText, base__opeql__opeql_, base_asActorMirror, base_asAsyncMessage, base_asBegin, base_asBoolean, base_asClosure, base_asDefinition, base_asFarReference, base_asField, base_asHandler, base_asMessage, base_asMessageCreation, base_asMethod, base_asMirror, base_asNumber, base_asSplice, base_asStatement, base_asStripe, base_asSymbol, base_asTable, base_asUnquoteSplice, base_asVariableAssignment, base_init, base_isBoolean, base_isCallFrame, base_isClosure, base_isFarReference, base_isMessageCreation, base_isMethod, base_isMirror, base_isSplice, base_isStripe, base_isSymbol, base_isTable, base_isUnquoteSplice, base_isVariableAssignment, base_new, createChild, isAmbientTalkObject, isJavaObjectUnderSymbiosis, isNativeBoolean, isNativeField, isNativeText, meta_addField, meta_addMethod, meta_assignField, meta_assignVariable, meta_clone, meta_defineField, meta_doesNotUnderstand, meta_eval, meta_extend, meta_getDynamicParent, meta_getLexicalParent, meta_grabField, meta_grabMethod, meta_invoke, meta_isCloneOf, meta_isRelatedTo, meta_isStripedWith, meta_listFields, meta_listMethods, meta_lookup, meta_newInstance, meta_quote, meta_receive, meta_respondsTo, meta_select, meta_send, meta_share, readResolve, toString, writeReplace

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.vub.at.objects.ATNumeric

base__opeql_, base__opgtx__opeql_, base__opgtx_, base__opltx__opeql_, base__opltx_, base__opnot__opeql_, base_cos, base_expt, base_log, base_sin, base_sqrt, base_tan

Methods inherited from interface edu.vub.at.objects.ATObject

base__opeql__opeql_, base_init, base_new, meta_addField, meta_addMethod, meta_assignField, meta_assignVariable, meta_clone, meta_defineField, meta_doesNotUnderstand, meta_eval, meta_extend, meta_getDynamicParent, meta_getLexicalParent, meta_grabField, meta_grabMethod, meta_invoke, meta_isCloneOf, meta_isRelatedTo, meta_isStripedWith, meta_listFields, meta_listMethods, meta_lookup, meta_newInstance, meta_pass, meta_quote, meta_receive, meta_resolve, meta_respondsTo, meta_select, meta_send, meta_share

Methods inherited from interface edu.vub.at.objects.coercion.ATConversions

asAmbientTalkObject, asJavaClassUnderSymbiosis, asJavaObjectUnderSymbiosis, asNativeBoolean, asNativeException, asNativeFarReference, asNativeNumber, asNativeNumeric, asNativeTable, asNativeText, base_asActorMirror, base_asAsyncMessage, base_asBegin, base_asBoolean, base_asClosure, base_asDefinition, base_asExpression, base_asFarReference, base_asField, base_asHandler, base_asMessage, base_asMessageCreation, base_asMethod, base_asMirror, base_asNumber, base_asSplice, base_asStatement, base_asStripe, base_asSymbol, base_asTable, base_asUnquoteSplice, base_asVariableAssignment, base_isBoolean, base_isCallFrame, base_isClosure, base_isFarReference, base_isMessageCreation, base_isMethod, base_isMirror, base_isSplice, base_isStripe, base_isSymbol, base_isTable, base_isUnquoteSplice, base_isVariableAssignment, isAmbientTalkObject, isJavaObjectUnderSymbiosis, isNativeBoolean, isNativeField, isNativeText

Field Detail

INFTY

public static final NATFraction INFTY

javaValue

public final double javaValue

Constructor Detail

NATFraction

private NATFraction(double javaFrc)

Method Detail

atValue

public static final NATFraction atValue(double javaFrc)

This method currently serves as a hook for fraction creation. Currently fraction objects are not reused, but this might change in the future.

asNativeFraction

public NATFraction asNativeFraction()

Specified by:

asNativeFraction in interface ATConversions

Overrides:

asNativeFraction in class NATNil

equals

public boolean equals(java.lang.Object other)

Description copied from class: NATNil

By default, two AmbientTalk objects are equal if they are the same object, or one is a proxy for the same object.

Overrides:

equals in class NATNil

meta_print

public NATText meta_print()
                   throws InterpreterException

Description copied from interface: ATObject

Prints out the object in a human-readable way.

Specified by:

meta_print in interface ATObject

Overrides:

meta_print in class NATNil

Throws:

InterpreterException

meta_getStripes

public ATTable meta_getStripes()
                        throws InterpreterException

Description copied from interface: ATObject

Returns the stripes of this object. Note that only the stripes that were attached directly to this object are returned, not all of the parent's stripes as well.

Specified by:

meta_getStripes in interface ATObject

Overrides:

meta_getStripes in class NATNumeric

Throws:

InterpreterException

getJavaValue

protected double getJavaValue()

Description copied from class: NATNumeric

Template method that should return the value of the underlying number or fraction as a double

Specified by:

getJavaValue in class NATNumeric

base_inc

public ATNumeric base_inc()

FRC(n).inc() => FRC(n+1)

Specified by:

base_inc in interface ATFraction

base_dec

public ATNumeric base_dec()

FRC(n).dec() => FRC(n-1)

Specified by:

base_dec in interface ATFraction

base_abs

public ATNumeric base_abs()

FRC(n).abs() => FRC(abs(n))

Specified by:

base_abs in interface ATFraction

base_round

public ATNumber base_round()

FRC(n).round() => NBR(round(n))

Specified by:

base_round in interface ATFraction

base_floor

public ATNumber base_floor()

FRC(n).floor() => NBR(floor(n))

Specified by:

base_floor in interface ATFraction

base_ceiling

public ATNumber base_ceiling()

FRC(n).ceiling() => NBR(ceil(n))

Specified by:

base_ceiling in interface ATFraction

base__oppls_

public ATNumeric base__oppls_(ATNumeric other)
                       throws InterpreterException

Specified by:

base__oppls_ in interface ATNumeric

Throws:

InterpreterException

base_addNumber

public ATNumeric base_addNumber(ATNumber other)
                         throws InterpreterException

Specified by:

base_addNumber in interface ATNumeric

Throws:

InterpreterException

base_addFraction

public ATNumeric base_addFraction(ATFraction other)
                           throws InterpreterException

Specified by:

base_addFraction in interface ATNumeric

Throws:

InterpreterException

base__opmns_

public ATNumeric base__opmns_(ATNumeric other)
                       throws InterpreterException

Specified by:

base__opmns_ in interface ATNumeric

Throws:

InterpreterException

base_subtractNumber

public ATNumeric base_subtractNumber(ATNumber other)
                              throws InterpreterException

Specified by:

base_subtractNumber in interface ATNumeric

Throws:

InterpreterException

base_subtractFraction

public ATNumeric base_subtractFraction(ATFraction other)
                                throws InterpreterException

Specified by:

base_subtractFraction in interface ATNumeric

Throws:

InterpreterException

base__optms_

public ATNumeric base__optms_(ATNumeric other)
                       throws InterpreterException

Specified by:

base__optms_ in interface ATNumeric

Throws:

InterpreterException

base_timesNumber

public ATNumeric base_timesNumber(ATNumber other)
                           throws InterpreterException

Specified by:

base_timesNumber in interface ATNumeric

Throws:

InterpreterException

base_timesFraction

public ATNumeric base_timesFraction(ATFraction other)
                             throws InterpreterException

Specified by:

base_timesFraction in interface ATNumeric

Throws:

InterpreterException

base__opdiv_

public ATNumeric base__opdiv_(ATNumeric other)
                       throws InterpreterException

Specified by:

base__opdiv_ in interface ATNumeric

Throws:

InterpreterException

base_divideNumber

public ATNumeric base_divideNumber(ATNumber other)
                            throws InterpreterException

Specified by:

base_divideNumber in interface ATNumeric

Throws:

InterpreterException

base_divideFraction

public ATNumeric base_divideFraction(ATFraction other)
                              throws InterpreterException

Specified by:

base_divideFraction in interface ATNumeric

Throws:

InterpreterException

base__opltx__opeql__opgtx_

public ATNumeric base__opltx__opeql__opgtx_(ATNumeric other)
                                     throws InterpreterException

Specified by:

base__opltx__opeql__opgtx_ in interface ATNumeric

Throws:

InterpreterException

base_gequalsNumber

public ATNumeric base_gequalsNumber(ATNumber other)
                             throws InterpreterException

Specified by:

base_gequalsNumber in interface ATNumeric

Throws:

InterpreterException

base_gequalsFraction

public ATNumeric base_gequalsFraction(ATFraction other)
                               throws InterpreterException

Specified by:

base_gequalsFraction in interface ATNumeric

Throws:

InterpreterException