openjava.ptree
Class IfStatement

java.lang.Object
  |
  +--openjava.ptree.ParseTreeObject
        |
        +--openjava.ptree.NonLeaf
              |
              +--openjava.ptree.IfStatement

All Implemented Interfaces:

Cloneable, ParseTree, Statement

public class IfStatement

extends NonLeaf

implements Statement, ParseTree

The IfStatement class represents a if statement node of parse tree

See Also:

ParseTree, NonLeaf, Statement, Expression, StatementList

Field Summary

Fields inherited from class openjava.ptree.NonLeaf

Fields inherited from class openjava.ptree.ParseTreeObject

debugFlag, debugLevel, LN, out, writerStack

Constructor Summary

(package private)	IfStatement()
	IfStatement(Expression expr, StatementList stmts) Constructs new IfStatement from prototype object
	IfStatement(Expression expr, StatementList stmts, StatementList elsestmts) Constructs new IfStatement from prototype object

Method Summary

void	accept(ParseTreeVisitor v) Accepts a ParseTreeVisitor object as the role of a Visitor in the Visitor pattern, as the role of an Element in the Visitor pattern.
StatementList	getElseStatements() Gets the else part of this if statement.
Expression	getExpression() Gets the condition of this if statement.
StatementList	getStatements() Gets the then part of this if statement.
void	setElseStatements(StatementList elsestmts) Sets the else part of this if statement.
void	setExpression(Expression expr) Sets the condition of this if statement.
void	setStatements(StatementList thenstmts) Sets the then part of this if statement.
void	writeCode() Writes the code this parse-tree presents for.

Methods inherited from class openjava.ptree.NonLeaf

childrenAccept, childrenAreEqual, elementAt, equals, getComment, getContents, getLength, getRowType, makeRecursiveCopy, replaceChildWith, set, set, set, set, set, set, set, set, set, setComment, setElementAt

Methods inherited from class openjava.ptree.ParseTreeObject

clone, eq, eq, equal, flushPrintWriter, getDebugFlag, getNest, getObjectID, getParent, getPrintWriter, getTab, hashCode, lastObjectID, makeCopy, popNest, popPrintWriter, pushNest, pushPrintWriter, replace, setDebugFlag, setDebugLevel, setNest, setParent, setPrintStream, setTab, toFlattenString, toString, writeDebug, writeDebugL, writeDebugLln, writeDebugln, writeDebugLR, writeDebugR, writeDebugRln, writeTab

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface openjava.ptree.ParseTree

childrenAccept, eq, equals, getObjectID, makeCopy, makeRecursiveCopy, replace, toFlattenString, toString

Constructor Detail

IfStatement

public IfStatement(Expression expr,
                   StatementList stmts,
                   StatementList elsestmts)

Constructs new IfStatement from prototype object

Parameters:

expr - the condition of this if statement.

stmts - the statement that is executed when expr is ture

elsestmts - the statement that is executed when expr is false. If there is no else part then statement list is empty.

IfStatement

public IfStatement(Expression expr,
                   StatementList stmts)

Constructs new IfStatement from prototype object

Parameters:

expr - the condition of this if statement.

stmts - the statement that is executed when expr is ture

IfStatement

IfStatement()

Method Detail

writeCode

public void writeCode()

Description copied from class: NonLeaf

Writes the code this parse-tree presents for.

Specified by:

writeCode in interface ParseTree

Overrides:

writeCode in class NonLeaf

getExpression

public Expression getExpression()

Gets the condition of this if statement.

Returns:

the expression of the condition.

setExpression

public void setExpression(Expression expr)

Sets the condition of this if statement.

Parameters:

expr - the expression of the condition.

getStatements

public StatementList getStatements()

Gets the then part of this if statement.

Returns:

the statement list of the then part.

setStatements

public void setStatements(StatementList thenstmts)

Sets the then part of this if statement.

Parameters:

thenstmts - the statement list of the then part.

getElseStatements

public StatementList getElseStatements()

Gets the else part of this if statement.

Returns:

the statement list of the else part.

setElseStatements

public void setElseStatements(StatementList elsestmts)

Sets the else part of this if statement.

Parameters:

elsestmts - the statement list of the else part.

accept

public void accept(ParseTreeVisitor v)
            throws ParseTreeException

Description copied from interface: ParseTree

Accepts a ParseTreeVisitor object as the role of a Visitor in the Visitor pattern, as the role of an Element in the Visitor pattern.

This invoke an appropriate visit() method on the accepted visitor.

Specified by:

accept in interface ParseTree

Specified by:

accept in class ParseTreeObject

Parameters:

v - a visitor

ParseTreeException