Package net.ssehub.easy.instantiation.core.model.templateModel

Class SwitchStatement

java.lang.Object

net.ssehub.easy.instantiation.core.model.templateModel.AbstractTemplateElement

net.ssehub.easy.instantiation.core.model.templateModel.SwitchStatement

All Implemented Interfaces:

ILanguageElement, ITemplateElement, ITemplateLangElement

public class SwitchStatement
extends AbstractTemplateElement

Implements a value switch.

Author:

Holger Eichelberger

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SwitchStatement.Alternative	A switch alternative.

Field Summary

Fields

Modifier and Type	Field	Description
private SwitchStatement.Alternative[]	alternatives
private VariableDeclaration	implicitVar
private Expression	switchExpression

Constructor Summary

Constructors

Constructor	Description
SwitchStatement()	Constructor for serialization.
SwitchStatement(Expression switchExpression, VariableDeclaration implicitVar, java.util.List<SwitchStatement.Alternative> alternatives)	Creates a new switch expression.
SwitchStatement(Expression switchExpression, VariableDeclaration implicitVar, SwitchStatement.Alternative[] alternatives)	Creates a new switch expression.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	accept(IVisitor visitor)	Accepts the visitor for visiting.
boolean	endsWithContentStatement()	Returns whether this element ends with a content statement.
SwitchStatement.Alternative	getAlternative(int index)	Get the alternative of this statement at the specified index.
int	getAlternativeCount()	Get the number of alternatives of this switch statement.
VariableDeclaration	getImplicitVariable()	Returns the implicit variable defined by this switch statement.
Expression	getSwitchExpression()	Returns the switch expression.
TypeDescriptor<?>	inferType()	Infers the type of this language element.
boolean	isBlock()	Returns whether this element is a block (opposite is a single statement).
protected void	setParent(ILanguageElement parent)	Changes the parent.
static SwitchStatement.Alternative[]	toArray(java.util.List<SwitchStatement.Alternative> alternatives)	Transforms the given alternatives into an array.

Methods inherited from class net.ssehub.easy.instantiation.core.model.templateModel.AbstractTemplateElement

getParent, isLoop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

switchExpression

private Expression switchExpression

alternatives

private SwitchStatement.Alternative[] alternatives

implicitVar

private VariableDeclaration implicitVar

Constructor Detail

SwitchStatement

SwitchStatement()

Constructor for serialization.

SwitchStatement

public SwitchStatement(Expression switchExpression,
                       VariableDeclaration implicitVar,
                       java.util.List<SwitchStatement.Alternative> alternatives)
                throws VilException

Creates a new switch expression.

Parameters:

switchExpression - the switch expression

implicitVar - the implicit variable representing the actual value of the switch expression

alternatives - the alternatives in the switch including an optional default alternative

Throws:

VilException - in case of semantic problems while creating this instance

SwitchStatement

public SwitchStatement(Expression switchExpression,
                       VariableDeclaration implicitVar,
                       SwitchStatement.Alternative[] alternatives)
                throws VilException

Creates a new switch expression.

Parameters:

switchExpression - the switch expression

implicitVar - the implicit variable representing the actual value of the switch expression

alternatives - the alternatives in the switch including an optional default alternative

Throws:

VilException - in case of semantic problems while creating this instance

Method Detail

toArray

public static final SwitchStatement.Alternative[] toArray(java.util.List<SwitchStatement.Alternative> alternatives)

Transforms the given alternatives into an array.

Parameters:

alternatives - the alternatives, may be null

Returns:

the alternatives as an array, null if the input was null

getSwitchExpression

public Expression getSwitchExpression()

Returns the switch expression.

Returns:

the switch expression

getAlternativeCount

public int getAlternativeCount()

Get the number of alternatives of this switch statement.

Returns:

The number of alternatives of this switch statement.

getAlternative

public SwitchStatement.Alternative getAlternative(int index)

Get the alternative of this statement at the specified index.

Parameters:

index - The 0-based index of the alternative to be returned.

Returns:

The alternative at the given index.

Throws:

java.lang.IndexOutOfBoundsException - if index < 0 || index >=getAlternativeCount()

getImplicitVariable

public VariableDeclaration getImplicitVariable()

Returns the implicit variable defined by this switch statement.

Returns:

the implicit variable

accept

public java.lang.Object accept(IVisitor visitor)
                        throws VilException

Description copied from interface: ITemplateLangElement

Accepts the visitor for visiting.

Parameters:

visitor - the visitor to be used

Returns:

the result of visiting this instance (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

isBlock

public boolean isBlock()

Description copied from interface: ITemplateElement

Returns whether this element is a block (opposite is a single statement).

Returns:

true if it is a block, false else

inferType

public TypeDescriptor<?> inferType()
                            throws VilException

Description copied from interface: ITemplateElement

Infers the type of this language element.

Returns:

the type of this language element

Throws:

VilException - in case that type errors occur

setParent

protected void setParent(ILanguageElement parent)

Description copied from class: AbstractTemplateElement

Changes the parent. Please override if children must be adjusted according. Shall be called only once per instance, but there is no limitation.

Overrides:

setParent in class AbstractTemplateElement

Parameters:

parent - the parent

endsWithContentStatement

public boolean endsWithContentStatement()

Description copied from interface: ITemplateElement

Returns whether this element ends with a content statement.

Returns:

true for end with content statement, false else