cetus.hir

Class ReturnStatement

java.lang.Object

cetus.hir.Statement

cetus.hir.ReturnStatement

All Implemented Interfaces:

Annotatable, Printable, Traversable, java.lang.Cloneable

public class ReturnStatement
extends Statement

Represents a return statement within a procedure.

Constructor Summary

Constructors

Constructor and Description
ReturnStatement() Creates a "return nothing" statement.
ReturnStatement(Expression expr) Creates a statement that returns an expression.

Method Summary

Methods

Modifier and Type	Method and Description
ReturnStatement	clone() Returns a clone of the return statement.
static void	defaultPrint(ReturnStatement s, java.io.PrintWriter o) Prints a break statement to a stream.
Expression	getExpression() Returns the expression that is being returned by this statement, or null if nothing is being returned.
static void	setClassPrintMethod(java.lang.reflect.Method m) Overrides the class print method, so that all subsequently created objects will use the supplied method.
void	setExpression(Expression e) Sets the child expression as the given expression e.

Methods inherited from class cetus.hir.Statement

annotate, annotateAfter, annotateBefore, containsAnnotation, detach, equals, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getChildren, getParent, getProcedure, hashCode, print, removeAnnotations, removeAnnotations, removeChild, setChild, setLineNumber, setParent, setPrintMethod, swapWith, toString, verify, where

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ReturnStatement

public ReturnStatement()

Creates a "return nothing" statement.

ReturnStatement

public ReturnStatement(Expression expr)

Creates a statement that returns an expression.

Parameters:

expr - The expression to return.

Throws:

java.lang.IllegalArgumentException - if expr is null.

NotAnOrphanException - if expr has a parent.

Method Detail

defaultPrint

public static void defaultPrint(ReturnStatement s,
                java.io.PrintWriter o)

Prints a break statement to a stream.

Parameters:

s - The statement to print.

o - The writer on which to print the statement.

getExpression

public Expression getExpression()

Returns the expression that is being returned by this statement, or null if nothing is being returned.

Returns:

the expression that is being returned by this statement, or null if nothing is being returned.

setExpression

public void setExpression(Expression e)

Sets the child expression as the given expression e.

Parameters:

e - the expression to be used as a child.

setClassPrintMethod

public static void setClassPrintMethod(java.lang.reflect.Method m)

Overrides the class print method, so that all subsequently created objects will use the supplied method.

Parameters:

m - The new print method.

clone

public ReturnStatement clone()

Returns a clone of the return statement.

Overrides:

clone in class Statement