org.macroing.cel4j.java.source.syntactic

Class EmptyStatement

java.lang.Object

org.macroing.cel4j.java.source.syntactic.EmptyStatement

All Implemented Interfaces:

BlockStatement, Statement, StatementNoShortIf, StatementWithoutTrailingSubstatement, org.macroing.cit.java.util.node.Node

public final class EmptyStatement
extends java.lang.Object
implements StatementWithoutTrailingSubstatement

An EmptyStatement denotes the nonterminal symbol EmptyStatement, as defined by the Java Language Specification.

This class is immutable and therefore suitable for concurrent use without external synchronization.

Since:

1.0.0

Author:

Jörgen Lundgren

Method Summary

Modifier and Type	Method and Description
boolean	accept(org.macroing.cit.java.util.node.NodeHierarchicalVisitor nodeHierarchicalVisitor) Accepts a NodeHierarchicalVisitor.
boolean	equals(java.lang.Object object) Returns true if, and only if, object is an instance of EmptyStatement, and that EmptyStatement instance is equal to this EmptyStatement instance, false otherwise.
static EmptyStatement	getInstance() Returns the one and only EmptyStatement instance.
int	hashCode() Returns a hash code for this EmptyStatement instance.
boolean	isIterationStatement() Returns true if, and only if, this Statement is an iteration statement, false otherwise.
java.lang.String	toString() Returns a String representation of this EmptyStatement instance.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.macroing.cit.java.util.node.Node

accept

Method Detail

accept

public boolean accept(org.macroing.cit.java.util.node.NodeHierarchicalVisitor nodeHierarchicalVisitor)

Accepts a NodeHierarchicalVisitor.

Returns the result of nodeHierarchicalVisitor.visitLeave(this).

If nodeHierarchicalVisitor is null, a NullPointerException will be thrown.

If a RuntimeException is thrown by the current NodeHierarchicalVisitor, a NodeTraversalException will be thrown with the RuntimeException wrapped.

This implementation will:

• throw a NullPointerException if nodeHierarchicalVisitor is null.
• throw a NodeTraversalException if nodeHierarchicalVisitor throws a RuntimeException.
• traverse its child Nodes, if it has any.

Specified by:

accept in interface org.macroing.cit.java.util.node.Node

Parameters:

nodeHierarchicalVisitor - the NodeHierarchicalVisitor to accept

Returns:

the result of nodeHierarchicalVisitor.visitLeave(this)

Throws:

org.macroing.cit.java.util.node.NodeTraversalException - thrown if, and only if, a RuntimeException is thrown by the current NodeHierarchicalVisitor

java.lang.NullPointerException - thrown if, and only if, nodeHierarchicalVisitor is null

equals

public boolean equals(java.lang.Object object)

Returns true if, and only if, object is an instance of EmptyStatement, and that EmptyStatement instance is equal to this EmptyStatement instance, false otherwise.

Overrides:

equals in class java.lang.Object

Parameters:

object - an Object to compare to this EmptyStatement instance for equality

Returns:

true if, and only if, object is an instance of EmptyStatement, and that EmptyStatement instance is equal to this EmptyStatement instance, false otherwise

isIterationStatement

public boolean isIterationStatement()

Returns true if, and only if, this Statement is an iteration statement, false otherwise.

This implementation returns false, as a EmptyStatement is not an iteration statement.

Specified by:

isIterationStatement in interface Statement

Specified by:

isIterationStatement in interface StatementNoShortIf

Returns:

true if, and only if, this Statement is an iteration statement, false otherwise

hashCode

public int hashCode()

Returns a hash code for this EmptyStatement instance.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code for this EmptyStatement instance

toString

public java.lang.String toString()

Returns a String representation of this EmptyStatement instance.

Overrides:

toString in class java.lang.Object

Returns:

a String representation of this EmptyStatement instance

getInstance

public static EmptyStatement getInstance()

Returns the one and only EmptyStatement instance.

Returns:

the one and only EmptyStatement instance