pl.edu.pjwstk.yaod.yaql.abstractsyntaxtree.statements
Class EmptyReturnStatement

java.lang.Object
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  +--pl.edu.pjwstk.yaod.yaql.abstractsyntaxtree.AbstractSyntaxTree
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        +--pl.edu.pjwstk.yaod.yaql.abstractsyntaxtree.Statement
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              +--pl.edu.pjwstk.yaod.yaql.abstractsyntaxtree.statements.EmptyReturnStatement
All Implemented Interfaces:
java.io.Serializable

public class EmptyReturnStatement
extends Statement

The EmptyReturnStatement class represents the statement nodes in the abstract syntax tree.

Author:
Jakub Trzetrzelewski, jakub_trzetrzelewski@yahoo.com
See Also:
Serialized Form

Constructor Summary
EmptyReturnStatement(KeywordTerminal k)
          Creates a new statement node with the given terminal k.
 
Method Summary
 void accept(Visitor v)
          Method responsible for traversing the abstract syntax tree structure.
 java.lang.String getSpellingAndPosition()
          Returns the spelling and positions of all terminals in a node.
 java.lang.String getTypeAsString()
          Returns the abstract syntax tree node type as a string value.
 void show(java.lang.String st)
          Method responsible for displaying the statement node.
 
Methods inherited from class pl.edu.pjwstk.yaod.yaql.abstractsyntaxtree.AbstractSyntaxTree
getLongestTypeAsSpacesString, getPreparedTypeAsString, show
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

EmptyReturnStatement

public EmptyReturnStatement(KeywordTerminal k)
Creates a new statement node with the given terminal k.
Parameters:
k - keyword terminal.
Method Detail

getTypeAsString

public java.lang.String getTypeAsString()
Returns the abstract syntax tree node type as a string value.
Overrides:
getTypeAsString in class AbstractSyntaxTree
Returns:
the abstract syntax tree node type as string.

getSpellingAndPosition

public java.lang.String getSpellingAndPosition()
Returns the spelling and positions of all terminals in a node.
Overrides:
getSpellingAndPosition in class AbstractSyntaxTree
Returns:
the spelling and positions of all terminals in a node.

accept

public void accept(Visitor v)
            throws EvalException
Method responsible for traversing the abstract syntax tree structure.
Overrides:
accept in class AbstractSyntaxTree
Parameters:
v - the visitor.
Throws:
EvalException - if evaluation fails.
See Also:
Visitor

show

public void show(java.lang.String st)
Method responsible for displaying the statement node.
Overrides:
show in class AbstractSyntaxTree
Parameters:
st - the string which is an auxiliary tabulator.