de.uka.ilkd.key.java.statement

Class If

java.lang.Object

de.uka.ilkd.key.java.JavaSourceElement

de.uka.ilkd.key.java.JavaProgramElement

de.uka.ilkd.key.java.JavaNonTerminalProgramElement

de.uka.ilkd.key.java.statement.JavaStatement

de.uka.ilkd.key.java.statement.BranchStatement

de.uka.ilkd.key.java.statement.If

All Implemented Interfaces:

ExpressionContainer, ModelElement, NonTerminalProgramElement, ProgramElement, SourceElement, Statement, SVSubstitute

public class If
extends BranchStatement
implements ExpressionContainer

If.

Author:

AutoDoc

Field Summary

Fields

Modifier and Type	Field and Description
protected Else	elseBranch Else branch.
protected Expression	expression Expression.
protected Then	thenBranch Then branch.

Constructor Summary

Constructors

Constructor and Description
If(Expression e, Then thenBranch) If.
If(Expression e, Then thenBranch, Else elseBranch) If.
If(ExtList children) Constructor for the transformation of COMPOST ASTs to KeY.

Method Summary

Modifier and Type	Method and Description
private void	checkValidity() throws an exception if the if-statement guard or then-branch are null
Branch	getBranchAt(int index)
int	getBranchCount() Get the number of branches in this container.
ProgramElement	getChildAt(int index) Returns the child at the specified index in this node's "virtual" child array
int	getChildCount() Returns the number of children of this node.
Else	getElse() Get else.
Expression	getExpression() Get expression.
Expression	getExpressionAt(int index)
int	getExpressionCount() Get the number of expressions in this container.
SourceElement	getLastElement() Finds the source element that occurs last in the source.
Then	getThen() Get then.
void	prettyPrint(PrettyPrinter p) Pretty printing the source element.
void	visit(Visitor v) calls the corresponding method of a visitor in order to perform some action/transformation on this element

Methods inherited from class de.uka.ilkd.key.java.JavaNonTerminalProgramElement

compatibleBlockSize, computeHashCode, equals, equalsModRenaming, getArrayPos, match, matchChildren

Methods inherited from class de.uka.ilkd.key.java.JavaProgramElement

getComments, hashCode, prettyPrintMain, reuseSignature

Methods inherited from class de.uka.ilkd.key.java.JavaSourceElement

getEndPosition, getFirstElement, getFirstElementIncludingBlocks, getParentClass, getPositionInfo, getRelativePosition, getStartPosition, setParentClass, toSource, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.uka.ilkd.key.java.ProgramElement

getComments, match

Methods inherited from interface de.uka.ilkd.key.java.SourceElement

equalsModRenaming, getEndPosition, getFirstElement, getFirstElementIncludingBlocks, getPositionInfo, getRelativePosition, getStartPosition

Field Detail

thenBranch

protected Then thenBranch

Then branch.

elseBranch

protected Else elseBranch

Else branch.

expression

protected Expression expression

Expression.

Constructor Detail

If

public If(ExtList children)

Constructor for the transformation of COMPOST ASTs to KeY.

Parameters:

children - the children of this AST element as KeY classes. May contain: Comments, a Then, an Else, an Expression (as condition of If)

If

public If(Expression e,
          Then thenBranch)

If.

Parameters:

e - an expression.

thenBranch - a then.

If

public If(Expression e,
          Then thenBranch,
          Else elseBranch)

If.

Parameters:

e - an expression.

thenBranch - a then.

elseBranch - an else.

Method Detail

checkValidity

private void checkValidity()

throws an exception if the if-statement guard or then-branch are null

getLastElement

public SourceElement getLastElement()

Description copied from class: JavaSourceElement

Finds the source element that occurs last in the source. The default implementation returns this element, which is correct for all terminal program elements, and many non terminals such as statements and prefixed operators.

Specified by:

getLastElement in interface SourceElement

Overrides:

getLastElement in class JavaSourceElement

Returns:

See Also:

JavaSourceElement.toSource(), JavaSourceElement.getEndPosition()

getChildCount

public int getChildCount()

Returns the number of children of this node.

Specified by:

getChildCount in interface NonTerminalProgramElement

Returns:

an int giving the number of children of this node

getChildAt

public ProgramElement getChildAt(int index)

Returns the child at the specified index in this node's "virtual" child array

Specified by:

getChildAt in interface NonTerminalProgramElement

Parameters:

index - an index into this node's "virtual" child array

Returns:

the program element at the given position

Throws:

java.lang.ArrayIndexOutOfBoundsException - if index is out of bounds

getExpressionCount

public int getExpressionCount()

Get the number of expressions in this container.

Specified by:

getExpressionCount in interface ExpressionContainer

Returns:

the number of expressions.

getExpressionAt

public Expression getExpressionAt(int index)

Specified by:

getExpressionAt in interface ExpressionContainer

getExpression

public Expression getExpression()

Get expression.

Returns:

the expression.

getThen

public Then getThen()

Get then.

Returns:

the then.

getElse

public Else getElse()

Get else.

Returns:

the else.

getBranchCount

public int getBranchCount()

Get the number of branches in this container.

Specified by:

getBranchCount in class BranchStatement

Returns:

the number of branches.

getBranchAt

public Branch getBranchAt(int index)

Specified by:

getBranchAt in class BranchStatement

visit

public void visit(Visitor v)

calls the corresponding method of a visitor in order to perform some action/transformation on this element

Specified by:

visit in interface SourceElement

Parameters:

v - the Visitor

prettyPrint

public void prettyPrint(PrettyPrinter p)
                 throws java.io.IOException

Description copied from class: JavaSourceElement

Pretty printing the source element.

Specified by:

prettyPrint in interface SourceElement

Overrides:

prettyPrint in class JavaProgramElement

Parameters:

p - a pretty printer.

Throws:

java.io.IOException - occasionally thrown.