openjava.ptree
Class ReturnStatement

java.lang.Object
  |
  +--openjava.ptree.ParseTreeObject
        |
        +--openjava.ptree.NonLeaf
              |
              +--openjava.ptree.ReturnStatement
All Implemented Interfaces:
Cloneable, ParseTree, Statement

public class ReturnStatement
extends NonLeaf
implements Statement, ParseTree

The ReturnStatement class represents a return statement node of parse tree.

See Also:
ParseTree, NonLeaf, Statement

Field Summary
 
Fields inherited from class openjava.ptree.NonLeaf
 
Fields inherited from class openjava.ptree.ParseTreeObject
debugFlag, debugLevel, LN, out, writerStack
 
Constructor Summary
ReturnStatement()
          Allocates a new object.
ReturnStatement(Expression expr)
          Allocates a new object.
 
Method Summary
 void accept(ParseTreeVisitor v)
          Accepts a ParseTreeVisitor object as the role of a Visitor in the Visitor pattern, as the role of an Element in the Visitor pattern.
 Expression getExpression()
          Gets the returned expression by this statement.
 void setExpression(Expression expr)
          Sets the returned expression by this statement.
 void writeCode()
          Writes the code this parse-tree presents for.
 
Methods inherited from class openjava.ptree.NonLeaf
childrenAccept, childrenAreEqual, elementAt, equals, getComment, getContents, getLength, getRowType, makeRecursiveCopy, replaceChildWith, set, set, set, set, set, set, set, set, set, setComment, setElementAt
 
Methods inherited from class openjava.ptree.ParseTreeObject
clone, eq, eq, equal, flushPrintWriter, getDebugFlag, getNest, getObjectID, getParent, getPrintWriter, getTab, hashCode, lastObjectID, makeCopy, popNest, popPrintWriter, pushNest, pushPrintWriter, replace, setDebugFlag, setDebugLevel, setNest, setParent, setPrintStream, setTab, toFlattenString, toString, writeDebug, writeDebugL, writeDebugLln, writeDebugln, writeDebugLR, writeDebugR, writeDebugRln, writeTab
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface openjava.ptree.ParseTree
childrenAccept, eq, equals, getObjectID, makeCopy, makeRecursiveCopy, replace, toFlattenString, toString
 

Constructor Detail

ReturnStatement

public ReturnStatement(Expression expr)
Allocates a new object.

Parameters:
expr - the expression to be returned by this statement. If this is null, nothing to be returned.

ReturnStatement

public ReturnStatement()
Allocates a new object.

Method Detail

writeCode

public void writeCode()
Description copied from class: NonLeaf
Writes the code this parse-tree presents for.

Specified by:
writeCode in interface ParseTree
Overrides:
writeCode in class NonLeaf

getExpression

public Expression getExpression()
Gets the returned expression by this statement.

Returns:
the expression to be returned by this statement.

setExpression

public void setExpression(Expression expr)
Sets the returned expression by this statement.

Parameters:
expr - the expression to be returned by this statement.

accept

public void accept(ParseTreeVisitor v)
            throws ParseTreeException
Description copied from interface: ParseTree
Accepts a ParseTreeVisitor object as the role of a Visitor in the Visitor pattern, as the role of an Element in the Visitor pattern.

This invoke an appropriate visit() method on the accepted visitor.

Specified by:
accept in interface ParseTree
Specified by:
accept in class ParseTreeObject
Parameters:
v - a visitor
ParseTreeException

SourceForge.net_Logo