scale.clef.decl
Class ExceptionDecl

java.lang.Object
  scale.common.Root
      scale.clef.Node
          scale.clef.decl.Declaration
              scale.clef.decl.ExceptionDecl

All Implemented Interfaces:

java.lang.Comparable, AnnotationInterface, DisplayNode

public class ExceptionDecl
extends Declaration

This class represents the declaration of an exception.

$Id: ExceptionDecl.java,v 1.27 2007-03-21 13:31:50 burrill Exp $

Copyright 2007 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

Constructor Summary

ExceptionDecl(java.lang.String name, Type type)
The type parameter is the type of the parameter to the exception.

Method Summary

Declaration	copy(java.lang.String name) Return a copy of this Declaration but with a different name.
boolean	isExceptionDecl() Return true if ExceptionDecl instance.
ExceptionDecl	returnExceptionDecl() Return a ExceptionDecl instance or null.
void	visit(Predicate p) Process a node by calling its associated routine.

Methods inherited from class scale.clef.decl.Declaration

accessibility, addressTaken, compareTo, getActualType, getAddressRegister, getAlias, getConstantValue, getCoreType, getDecl, getDisplacement, getDisplayColorHint, getDisplayLabel, getDisplayShapeHint, getMode, getName, getPointedToCore, getStorageLoc, getTag, getType, getValueRegister, hashCode, hasHiddenAliases, inMemory, isCaseLabelDecl, isCommonBaseVariable, isConst, isEnumElementDecl, isEquivalenceDecl, isFieldDecl, isFileDecl, isFormalDecl, isForwardProcedureDecl, isFtnResultVar, isGlobal, isLabelDecl, isProcedureDecl, isPure, isReferenced, isRenamed, isRenamedVariableDecl, isRoutineDecl, isStmtFtnDecl, isTemporary, isTypeDecl, isTypeName, isUnknownFormals, isValueDecl, isVariableDecl, isVirtual, isWeak, residency, returnCaseLabelDecl, returnEnumElementDecl, returnEquivalenceDecl, returnFieldDecl, returnFileDecl, returnFormalDecl, returnForwardProcedureDecl, returnLabelDecl, returnProcedureDecl, returnRenamedVariableDecl, returnRoutineDecl, returnStmtFtnDecl, returnTypeDecl, returnTypeName, returnUnknownFormals, returnValueDecl, returnVariableDecl, setAccessibility, setAddressRegister, setAddressTaken, setAlias, setDisplacement, setName, setReferenced, setResidency, setStorageLoc, setTag, setType, setValueRegister, setVisibility, setWeak, toStringSpecial, valueRegMode, visibility

Methods inherited from class scale.clef.Node

getChild, getSourceLineNumber, numChildren, setAnnotationLevel, setReportLevel, setSourceLineNumber, toString, toString, toStringChildren

Methods inherited from class scale.common.Root

addAnnotation, allAnnotations, allMatchingAnnotations, getAnnotation, getDisplayName, getDisplayString, getNodeCount, getNodeID, hasAnnotation, hasEqualAnnotation, removeAnnotation, removeAnnotations, toStringAnnotations, toStringClass, trace, trace, trace

Methods inherited from class java.lang.Object

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

Constructor Detail

ExceptionDecl

public ExceptionDecl(java.lang.String name,
                     Type type)

The type parameter is the type of the parameter to the exception. This reuses the type field because the exception has no type.

Method Detail

visit

public void visit(Predicate p)

Description copied from class: Node

Process a node by calling its associated routine. See the "visitor" design pattern in Design Patterns: Elements of Reusable Object-Oriented Software by E. Gamma, et al, Addison Wesley, ISBN 0-201-63361-2.

Each class has a visit(Predicate p) method. For example, in class ABC:

   public void visit(Predicate p)
   {
     p.visitABC(this);
   }
 

and the class that implements Predicate has a method

   public void visitABC(Node n)
   {
     ABC a = (ABC) n;
     ...
   }
 

Thus, the class that implements Predicate can call

   n.visit(this);
 

where n is a Node sub-class without determining which specific sub-class n is. The visit pattern basically avoids implementing a large switch statement or defining different methods in each class for some purpose.

Overrides:

visit in class Declaration

See Also:

Predicate

copy

public Declaration copy(java.lang.String name)

Return a copy of this Declaration but with a different name.

Specified by:

copy in class Declaration

isExceptionDecl

public final boolean isExceptionDecl()

Description copied from class: Declaration

Return true if ExceptionDecl instance.

Overrides:

isExceptionDecl in class Declaration

returnExceptionDecl

public final ExceptionDecl returnExceptionDecl()

Description copied from class: Declaration

Return a ExceptionDecl instance or null.

Overrides:

returnExceptionDecl in class Declaration