de.uka.ilkd.key.java.reference

Class ArrayLengthReference

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.reference.ArrayLengthReference

All Implemented Interfaces:

Expression, ModelElement, NonTerminalProgramElement, ProgramElement, Reference, ReferenceSuffix, SourceElement, SVSubstitute

public class ArrayLengthReference
extends JavaNonTerminalProgramElement
implements Reference, Expression, ReferenceSuffix

Array length reference. As a length reference is int-valued, and hence it is no valid prefix. Do not instantiate this class if you want to construct the Java expression a.length! Use JavaInfo.getArrayLength() instead.

Field Summary

Fields

Modifier and Type	Field and Description
protected ReferencePrefix	prefix Reference prefix.

Constructor Summary

Constructors

Constructor and Description
ArrayLengthReference() Array length reference.
ArrayLengthReference(ExtList children) Constructor for the transformation of COMPOST ASTs to KeY.

Method Summary

Modifier and Type	Method and Description
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.
SourceElement	getFirstElement() Finds the source element that occurs first in the source.
SourceElement	getFirstElementIncludingBlocks() Finds the source element that occurs first in the source.
KeYJavaType	getKeYJavaType(Services javaServ)
KeYJavaType	getKeYJavaType(Services javaServ, ExecutionContext ec) returns the KeYJavaType of an expression
ReferencePrefix	getReferencePrefix() Get reference prefix.
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, getLastElement, 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, getLastElement, getPositionInfo, getRelativePosition, getStartPosition

Field Detail

prefix

protected final ReferencePrefix prefix

Reference prefix. It must evaluate to an ArrayType.

Constructor Detail

ArrayLengthReference

public ArrayLengthReference()

Array length reference.

ArrayLengthReference

public ArrayLengthReference(ExtList children)

Constructor for the transformation of COMPOST ASTs to KeY.

Parameters:

children - the children of this AST element as KeY classes. May contain: a ReferencePrefix (for the array length), Comments

Method Detail

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

getKeYJavaType

public KeYJavaType getKeYJavaType(Services javaServ)

getKeYJavaType

public KeYJavaType getKeYJavaType(Services javaServ,
                                  ExecutionContext ec)

Description copied from interface: Expression

returns the KeYJavaType of an expression

Specified by:

getKeYJavaType in interface Expression

getReferencePrefix

public ReferencePrefix getReferencePrefix()

Get reference prefix.

Returns:

the reference prefix.

getFirstElement

public SourceElement getFirstElement()

Description copied from class: JavaSourceElement

Finds the source element that occurs first 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:

getFirstElement in interface SourceElement

Overrides:

getFirstElement in class JavaSourceElement

Returns:

the first source element in the syntactical representation of this element, may be equals to this element.

See Also:

JavaSourceElement.toSource(), JavaSourceElement.getStartPosition()

getFirstElementIncludingBlocks

public SourceElement getFirstElementIncludingBlocks()

Description copied from interface: SourceElement

Finds the source element that occurs first in the source.

Specified by:

getFirstElementIncludingBlocks in interface SourceElement

Overrides:

getFirstElementIncludingBlocks in class JavaSourceElement

Returns:

the first source element in the syntactical representation of this element, may be equals to this element.

See Also:

SourceElement.getStartPosition()

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.