/* * ReturnStatement.java 1.0 * * * Jun 20, 1997 by mich * Sep 29, 1997 by bv * Oct 11, 1997 by mich * * @see openjava.ptree.ParseTree * @version 1.0 last updated: Oct 11, 1997 * @author Michiaki Tatsubori */ package openjava.ptree; import openjava.ptree.util.*; import openjava.mop.*; import java.io.OutputStream; /** * The <code>ReturnStatement</code> class represents * a return statement node of parse tree. * * @see openjava.ptree.ParseTree * @see openjava.ptree.NonLeaf * @see openjava.ptree.Statement */ public class ReturnStatement extends NonLeaf implements Statement, ParseTree { /** * Allocates a new object. * * @param expr the expression to be returned by this statement. * If this is null, nothing to be returned. */ public ReturnStatement( Expression expr ) { super(); set( (ParseTree) expr ); } /** * Allocates a new object. * */ public ReturnStatement() { this( null ); } public void writeCode() { writeTab(); writeDebugL(); out.print( "return" ); Expression expr = getExpression(); if(expr != null){ out.print(" "); expr.writeCode(); } out.print(";"); writeDebugR(); out.println(); } /** * Gets the returned expression by this statement. * * @return the expression to be returned by this statement. */ public Expression getExpression() { return (Expression) elementAt( 0 ); } /** * Sets the returned expression by this statement. * * @param expr the expression to be returned by this statement. */ public void setExpression( Expression expr ) { setElementAt( expr, 0 ); } public void accept( ParseTreeVisitor v ) throws ParseTreeException { v.visit( this ); } }
# | Change | User | Description | Committed | |
---|---|---|---|---|---|
#1 | 1461 | Julian Hyde |
saffron: First check in. Just documents, and the unmodified OpenJava 20001010 source files. |