edu.vub.at.objects.natives.grammar
Class AGSelf

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.grammar.AGSymbol
                      edu.vub.at.objects.natives.grammar.AGSelf

All Implemented Interfaces:

ATAbstractGrammar, ATConversions, ATExpression, ATNil, ATObject, ATStatement, ATSymbol, java.io.Serializable

public final class AGSelf

extends AGSymbol

Author:

tvc The abstract grammar element denoting the symbol 'self'

See Also:

Serialized Form

Field Summary

static AGSelf	_INSTANCE_
private static java.lang.String	SELF_NAM

Fields inherited from class edu.vub.at.objects.natives.grammar.AGSymbol

Constructor Summary

private

AGSelf()

Method Summary

ATObject	meta_eval(ATContext ctx) To evaluate a self reference, simply select the current self from the current evaluation context.
ATObject	meta_quote(ATContext ctx) Quoting a self reference results in the same self reference.

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

alloc, base__opmns__opgtx_, base_asSymbol, base_getText, base_isSymbol, equals, hashCode, jAlloc, meta_print, meta_resolve, toString

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

base_asExpression, meta_getStripes

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

meta_pass

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

asAmbientTalkObject, asJavaClassUnderSymbiosis, asJavaObjectUnderSymbiosis, asNativeBoolean, asNativeException, asNativeFarReference, asNativeFraction, asNativeNumber, asNativeNumeric, 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_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_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_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_receive, meta_respondsTo, meta_select, meta_send, meta_share, readResolve, writeReplace

Methods inherited from class java.lang.Object

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

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_extend, meta_getDynamicParent, meta_getLexicalParent, meta_getStripes, meta_grabField, meta_grabMethod, meta_invoke, meta_isCloneOf, meta_isRelatedTo, meta_isStripedWith, meta_listFields, meta_listMethods, meta_lookup, meta_newInstance, meta_pass, meta_receive, meta_respondsTo, meta_select, meta_send, meta_share

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

asAmbientTalkObject, asJavaClassUnderSymbiosis, asJavaObjectUnderSymbiosis, asNativeBoolean, asNativeException, asNativeFarReference, asNativeFraction, 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_asTable, base_asUnquoteSplice, base_asVariableAssignment, base_isBoolean, base_isCallFrame, base_isClosure, base_isFarReference, base_isMessageCreation, base_isMethod, base_isMirror, base_isSplice, base_isStripe, base_isTable, base_isUnquoteSplice, base_isVariableAssignment, isAmbientTalkObject, isJavaObjectUnderSymbiosis, isNativeBoolean, isNativeField, isNativeText

Field Detail

SELF_NAM

private static final java.lang.String SELF_NAM

See Also:

Constant Field Values

_INSTANCE_

public static final AGSelf _INSTANCE_

Constructor Detail

AGSelf

private AGSelf()

Method Detail

meta_eval

public ATObject meta_eval(ATContext ctx)
                   throws InterpreterException

To evaluate a self reference, simply select the current self from the current evaluation context. AGSelf().eval(ctx) = ctx.self

Specified by:

meta_eval in interface ATObject

Overrides:

meta_eval in class AGSymbol

Returns:

the value bound to this symbol in the lexical environment

Throws:

InterpreterException

meta_quote

public ATObject meta_quote(ATContext ctx)

Quoting a self reference results in the same self reference.

Specified by:

meta_quote in interface ATObject

Overrides:

meta_quote in class AGSymbol