scale.clef.expr
Class AllocateSettingFieldsOp

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