scale.clef.stmt
Class ArithmeticIfStmt

java.lang.Object
  scale.common.Root
      scale.clef.Node
          scale.clef.stmt.Statement
              scale.clef.stmt.IfStmt
                  scale.clef.stmt.ArithmeticIfStmt

All Implemented Interfaces:

AnnotationInterface, DisplayNode

public class ArithmeticIfStmt
extends IfStmt

This class represents the Fortran 77 arithmetic if statement.

$Id: ArithmeticIfStmt.java,v 1.22 2005-03-24 13:57:06 burrill Exp $

Copyright 2005 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

Constructor Summary

ArithmeticIfStmt(Expression e, LabelDecl less, LabelDecl equal, LabelDecl more)

Method Summary

Node	getChild(int i) Return the specified AST child of this node.
LabelDecl	getEqualLabel() Return the label of the zero branch statement.
LabelDecl	getLessLabel() Return the label of the negative branch statement.
LabelDecl	getMoreLabel() Return the label of the positive branch statement.
int	numChildren() Return the number of AST children of this node.
protected void	setEqualLabel(LabelDecl equalLabel) Specify the label of the zero branch statement.
protected void	setLessLabel(LabelDecl lessLabel) Specify the label of the negative branch statement.
protected void	setMoreLabel(LabelDecl moreLabel) Specify the label of the positive branch statement.
void	visit(Predicate p) Process a node by calling its associated routine.

Methods inherited from class scale.clef.stmt.IfStmt

getExpr, setExpr

Methods inherited from class scale.clef.stmt.Statement

containsLoopStmt, dump, getDisplayColorHint, getDisplayLabel, getDisplayShapeHint, getPragma, getSourceLineNumber, hasReturnStmt, numTotalStmts, setPragma, setSourceLineNumber

Methods inherited from class scale.clef.Node

getCoreType, getDecl, getType, setAnnotationLevel, setReportLevel, toString, toString, toStringChildren, toStringSpecial

Methods inherited from class scale.common.Root

addAnnotation, allAnnotations, allMatchingAnnotations, getAnnotation, getDisplayName, getDisplayString, getNodeCount, getNodeID, hasAnnotation, hasEqualAnnotation, hashCode, 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

ArithmeticIfStmt

public ArithmeticIfStmt(Expression e,
                        LabelDecl less,
                        LabelDecl equal,
                        LabelDecl more)

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 IfStmt

See Also:

Predicate

getLessLabel

public final LabelDecl getLessLabel()

Return the label of the negative branch statement.

getEqualLabel

public final LabelDecl getEqualLabel()

Return the label of the zero branch statement.

getMoreLabel

public final LabelDecl getMoreLabel()

Return the label of the positive branch statement.

setLessLabel

protected final void setLessLabel(LabelDecl lessLabel)

Specify the label of the negative branch statement.

setEqualLabel

protected final void setEqualLabel(LabelDecl equalLabel)

Specify the label of the zero branch statement.

setMoreLabel

protected final void setMoreLabel(LabelDecl moreLabel)

Specify the label of the positive branch statement.

getChild

public Node getChild(int i)

Return the specified AST child of this node.

Overrides:

getChild in class IfStmt

numChildren

public int numChildren()

Return the number of AST children of this node.

Overrides:

numChildren in class IfStmt