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java.lang.Object scale.common.Root scale.score.Note scale.score.chords.Chord scale.score.chords.SequentialChord scale.score.chords.EndChord scale.score.chords.LeaveChord scale.score.chords.ReturnChord
public class ReturnChord
This class represents return statements.
$Id: ReturnChord.java,v 1.17 2005-02-07 21:28:36 burrill Exp $
Copyright 2005 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.
Field Summary |
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Fields inherited from class scale.score.chords.Chord |
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lineNumber |
Constructor Summary | |
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ReturnChord()
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ReturnChord(Expr routineValue)
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Method Summary | |
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void |
visit(Predicate p)
Process a node by calling its associated routine. |
Methods inherited from class scale.score.chords.LeaveChord |
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changeInDataEdge, deleteInDataEdges, executionCostEstimate, getDeclList, getExprList, getInDataEdge, getInDataEdgeArray, getLoadExprList, getResultValue, numInDataEdges, pushInDataEdges, recordRefs, removeDualExprs, removeRefs, removeUseDef, replaceDecl, setResultValue, toStringSpecial, validate |
Methods inherited from class scale.score.chords.EndChord |
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copy, linkTo, setTarget |
Methods inherited from class scale.score.chords.SequentialChord |
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changeOutCfgEdge, clearEdge, clearEdgeMarkers, deleteOutCfgEdges, edgeMarked, getNextChord, getOutCfgEdge, getOutCfgEdgeArray, getTarget, indexOfOutCfgEdge, isLastInBasicBlock, isSequential, linkSubgraph, markEdge, numOutCfgEdges, pushAllOutCfgEdges, pushOutCfgEdges, pushOutCfgEdges, pushSortedOutCfgEdges, pushSortedOutCfgEdges, replaceOutCfgEdge, setTargetUnsafe |
Methods inherited from class scale.score.Note |
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getChord, getEssentialUse, setAnnotationLevel, setReportLevel, toString |
Methods inherited from class scale.common.Root |
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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 |
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clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public ReturnChord()
public ReturnChord(Expr routineValue)
routineValue
- is the expression specifying the routines valueMethod Detail |
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public void visit(Predicate p)
Note
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(Note n) { ABC a = (ABC) n; ... }Thus, the class that implements
Predicate
can call
n.visit(this);where
n
is a Note
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.
visit
in class EndChord
Predicate
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