cetus.hir

Class UnaryExpression

java.lang.Object

cetus.hir.Expression

cetus.hir.UnaryExpression

All Implemented Interfaces:

Printable, Traversable, java.lang.Cloneable, java.lang.Comparable<Expression>

public class UnaryExpression
extends Expression

Represents an expression having a unary operator and an operand expression.

Constructor Summary

Constructors

Constructor and Description
UnaryExpression(UnaryOperator op, Expression expr) Constructs a unary expression with the specified operator and expression.

Method Summary

Methods

Modifier and Type	Method and Description
UnaryExpression	clone() Returns a clone of the unary expression.
static void	defaultPrint(UnaryExpression e, java.io.PrintWriter o) Prints a unary expression to a stream.
boolean	equals(java.lang.Object o) Compares the unary expression with the specified object for equality.
Expression	getExpression() Returns the operand expression.
UnaryOperator	getOperator() Returns the operator of the expression.
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 expr) Sets the operand expression with the specified new expression.
java.lang.String	toString() Returns a string representation of the unary expression.

Methods inherited from class cetus.hir.Expression

compareTo, findExpression, getChildren, getParent, getStatement, hashCode, needsParens, print, printSelf, removeChild, setChild, setParens, setParent, setPrintMethod, swapWith, verify

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

UnaryExpression

public UnaryExpression(UnaryOperator op,
               Expression expr)

Constructs a unary expression with the specified operator and expression.

Parameters:

op - the unary operator.

expr - the operand expression.

Throws:

NotAnOrphanException - if expr has a parent.

Method Detail

clone

public UnaryExpression clone()

Returns a clone of the unary expression.

Overrides:

clone in class Expression

Returns:

a deep copy of this expression.

defaultPrint

public static void defaultPrint(UnaryExpression e,
                java.io.PrintWriter o)

Prints a unary expression to a stream.

Parameters:

e - The expression to print.

o - The writer on which to print the expression.

toString

public java.lang.String toString()

Returns a string representation of the unary expression. The returned string is equivalent to the printed stream through defaultPrint(cetus.hir.UnaryExpression, java.io.PrintWriter).

Overrides:

toString in class Expression

Returns:

the string representation.

equals

public boolean equals(java.lang.Object o)

Compares the unary expression with the specified object for equality.

Overrides:

equals in class Expression

Parameters:

o - the object to be compared with.

Returns:

true if o!=null, this.getClass()==o.getClass(), and this.children.equals(o.children) || this.children==o.children==null

getExpression

public Expression getExpression()

Returns the operand expression.

Returns:

the expression.

getOperator

public UnaryOperator getOperator()

Returns the operator of the expression.

Returns:

the operator.

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.

setExpression

public void setExpression(Expression expr)

Sets the operand expression with the specified new expression.

Parameters:

expr - the new operand expression.

Throws:

NotAnOrphanException - if expr has a parent.