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

java.lang.Object
  extended byedu.vub.at.objects.natives.NATNil
      extended byedu.vub.at.objects.natives.NATByCopy
          extended byedu.vub.at.objects.natives.grammar.NATAbstractGrammar
              extended byedu.vub.at.objects.natives.grammar.AGAssignTable
All Implemented Interfaces:
ATAbstractGrammar, ATAssignment, ATAssignTable, ATConversions, ATExpression, ATNil, ATObject, ATStatement, java.io.Serializable

public final class AGAssignTable
extends NATAbstractGrammar
implements ATAssignTable

Author:
tvc The native implementation of a table assignment AG element.
See Also:
Serialized Form

Field Summary
private  ATExpression idxExp_
           
private  ATExpression tblExp_
           
private  ATExpression valExp_
           
 
Fields inherited from class edu.vub.at.objects.natives.NATNil
_INSTANCE_
 
Constructor Summary
AGAssignTable(ATExpression tbl, ATExpression idx, ATExpression val)
           
 
Method Summary
 ATExpression base_getIndexExpression()
           
 ATExpression base_getTableExpression()
           
 ATExpression base_getValueExpression()
           
 ATObject meta_eval(ATContext ctx)
          To evaluate a table assignment, evaluate its table expression to a valid ATTable.
 NATText meta_print()
          Prints out the object in a human-readable way.
 ATObject meta_quote(ATContext ctx)
          Quoting a table assignment results in a new quoted table assignment.
 
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

tblExp_

private final ATExpression tblExp_

idxExp_

private final ATExpression idxExp_

valExp_

private final ATExpression valExp_
Constructor Detail

AGAssignTable

public AGAssignTable(ATExpression tbl,
                     ATExpression idx,
                     ATExpression val)
Method Detail

base_getTableExpression

public ATExpression base_getTableExpression()
Specified by:
base_getTableExpression in interface ATAssignTable

base_getIndexExpression

public ATExpression base_getIndexExpression()
Specified by:
base_getIndexExpression in interface ATAssignTable

base_getValueExpression

public ATExpression base_getValueExpression()
Specified by:
base_getValueExpression in interface ATAssignTable

meta_eval

public ATObject meta_eval(ATContext ctx)
                   throws InterpreterException
To evaluate a table assignment, evaluate its table expression to a valid ATTable. Next, evaluate its index expression into a valid number. Finally, evaluate its value expression and assign the result to the proper index slot of the table. AGASSTABLE(tbl,idx,val).eval(ctx) = tbl.eval(ctx).atPut(idx.eval(ctx), val.eval(ctx))

Specified by:
meta_eval in interface ATObject
Overrides:
meta_eval in class NATNil
Returns:
the value stored in the table
Throws:
InterpreterException

meta_quote

public ATObject meta_quote(ATContext ctx)
                    throws InterpreterException
Quoting a table assignment results in a new quoted table assignment. AGASSTABLE(tbl,idx,val).quote(ctx) = AGASSTABLE(tbl.quote(ctx),idx.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