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

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.AGDefExternalField

All Implemented Interfaces:

ATAbstractGrammar, ATConversions, ATDefExternalField, ATDefinition, ATExpression, ATNil, ATObject, ATStatement, java.io.Serializable

public class AGDefExternalField

extends NATAbstractGrammar

implements ATDefExternalField

Represents the abstract grammar for defining external fields. Examples: o.x := 5 num.+ := "foo"

Author:

tvcutsem

See Also:

Serialized Form

Field Summary

private ATSymbol	name_
private ATSymbol	rcvNam_
private ATExpression	valueExp_

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

_INSTANCE_

Constructor Summary

AGDefExternalField(ATSymbol rcv, ATSymbol name, ATExpression value)

Method Summary

ATSymbol	base_getName()
ATSymbol	base_getReceiver()
ATExpression	base_getValueExpression()
ATObject	meta_eval(ATContext ctx) Defines a new field in the object denoted by the receiver symbol.
NATText	meta_print() Prints out the object in a human-readable way.
ATObject	meta_quote(ATContext ctx) Quoting an external field definition results in a new quoted external field definition.

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

meta_getStripes

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, asNativeFraction, asNativeNumber, asNativeNumeric, asNativeTable, asNativeText, base__opeql__opeql_, 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_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, equals, 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, 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.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_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, 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_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

rcvNam_

private final ATSymbol rcvNam_

name_

private final ATSymbol name_

valueExp_

private final ATExpression valueExp_

Constructor Detail

AGDefExternalField

public AGDefExternalField(ATSymbol rcv,
                          ATSymbol name,
                          ATExpression value)

Method Detail

base_getReceiver

public ATSymbol base_getReceiver()

Specified by:

base_getReceiver in interface ATDefExternalField

base_getName

public ATSymbol base_getName()

Specified by:

base_getName in interface ATDefExternalField

base_getValueExpression

public ATExpression base_getValueExpression()

Specified by:

base_getValueExpression in interface ATDefExternalField

meta_eval

public ATObject meta_eval(ATContext ctx)
                   throws InterpreterException

Defines a new field in the object denoted by the receiver symbol. The return value is the value of the field. AGDEFEXTFLD(rcv,nam,val).eval(ctx) = rcv.eval(ctx).addField(nam, val.eval(ctx)) This method may fail with an XIllegalOperation if the receiver is an instance of a native type (whose field maps are sealed) or if the receiver is an isolate.

Specified by:

meta_eval in interface ATObject

Overrides:

meta_eval in class NATNil

Throws:

InterpreterException

meta_quote

public ATObject meta_quote(ATContext ctx)
                    throws InterpreterException

Quoting an external field definition results in a new quoted external field definition. AGDEFEXTFLD(rcv,nam,val).quote(ctx) = AGDEFEXTFLD(rcv.quote(ctx), nam.quote(ctx), val.quote(ctx))

Specified by:

meta_quote in interface ATObject

Overrides:

meta_quote in class NATNil

Throws:

InterpreterException

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