scale.clef.expr
Class AllocateSettingFieldsOp

java.lang.Object
  scale.common.Root
      scale.clef.Node
          scale.clef.expr.Expression
              scale.clef.expr.HeapOp
                  scale.clef.expr.AllocateSettingFieldsOp

All Implemented Interfaces:

AnnotationInterface, DisplayNode

public class AllocateSettingFieldsOp
extends HeapOp

This class represents a heap allocation operation for an aggregate entity and then uses the specified positional arguments to initialize the entity.

$Id: AllocateSettingFieldsOp.java,v 1.35 2007-08-28 17:58:20 burrill Exp $

Copyright 2008 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

The result type of the operation should be a pointer to the object type (ie., a pointer to type.

Constructor Summary

AllocateSettingFieldsOp(Type rt, Type alloctype, Vector<Expression> al)

Method Summary

boolean	equivalent(java.lang.Object exp) Return true if the two expressions are equivalent.
java.util.Enumeration<Expression>	getArgList() Return the list of initialization expressions.
Node	getChild(int i) Return the specified AST child of this node.
void	getDeclList(java.util.AbstractCollection<Declaration> varList) Add all declarations referenced in this expression to the collection.
int	numChildren() Return the number of AST children of this node.
protected void	setArgList(Vector<Expression> argList) Specify the list of initialization expressions.
void	visit(Predicate p) Process a node by calling its associated routine.

Methods inherited from class scale.clef.expr.HeapOp

getAllocType

Methods inherited from class scale.clef.expr.Expression

canonical, containsDeclaration, getConstantValue, getCoreType, getDisplayColorHint, getDisplayLabel, getDisplayShapeHint, getPointedToCore, getType, hasTrueFalseResult, isSimpleOp, setType, toStringSpecial

Methods inherited from class scale.clef.Node

getDecl, getSourceLineNumber, setAnnotationLevel, setReportLevel, setSourceLineNumber, toString, toString, toStringChildren

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

AllocateSettingFieldsOp

public AllocateSettingFieldsOp(Type rt,
                               Type alloctype,
                               Vector<Expression> al)

Parameters:

rt - is the type of the result

alloctype - is the type of the allocated object, not the type of the result

al - is the list of initialization expressions

Method Detail

equivalent

public boolean equivalent(java.lang.Object exp)

Return true if the two expressions are equivalent.

Overrides:

equivalent in class HeapOp

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 HeapOp

See Also:

Predicate

getArgList

public final java.util.Enumeration<Expression> getArgList()

Return the list of initialization expressions.

setArgList

protected final void setArgList(Vector<Expression> argList)

Specify the list of initialization expressions.

getChild

public Node getChild(int i)

Return the specified AST child of this node.

Overrides:

getChild in class Node

numChildren

public int numChildren()

Return the number of AST children of this node.

Overrides:

numChildren in class Node

getDeclList

public void getDeclList(java.util.AbstractCollection<Declaration> varList)

Description copied from class: Expression

Add all declarations referenced in this expression to the collection.

Specified by:

getDeclList in class Expression