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

Class LoopStatement

java.lang.Object

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

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

All Implemented Interfaces:

ILanguageElement, ITemplateElement, ITemplateLangElement

public class LoopStatement
extends AbstractTemplateElement

Representation of a loop-statement in VIL which allows multiple processing of a WorkflowElementBlock instance.

Author:

kroeher

Field Summary

Fields

Modifier and Type	Field	Description
private Expression	containerExpression
private Expression	finalSeparatorExpression
private VariableDeclaration	iteratorVar
private Expression	separatorExpression
private ITemplateElement	statement

Constructor Summary

Constructors

Constructor	Description
LoopStatement()	Constructor for serialization.
LoopStatement(VariableDeclaration iteratorVar, Expression containerExpression, ITemplateElement statement, Expression separatorExpression, Expression finalSeparatorExpression)	Create a loop-statement.

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.
Expression	getContainerExpression()	Get the expression of this loop which defines the set of elements to iterate over.
Expression	getFinalSeparatorExpression()	Returns the optional final separator expression.
VariableDeclaration	getIteratorVariable()	Returns the iterator variable.
ITemplateElement	getLoopStatement()	Get the loop-statement which may subsume a set of template elements that will be processed multiple times.
Expression	getSeparatorExpression()	Returns the optional separator 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.

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

getParent

Methods inherited from class java.lang.Object

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

Field Detail

iteratorVar

private VariableDeclaration iteratorVar

containerExpression

private Expression containerExpression

statement

private ITemplateElement statement

separatorExpression

private Expression separatorExpression

finalSeparatorExpression

private Expression finalSeparatorExpression

Constructor Detail

LoopStatement

LoopStatement()

Constructor for serialization.

LoopStatement

public LoopStatement(VariableDeclaration iteratorVar,
                     Expression containerExpression,
                     ITemplateElement statement,
                     Expression separatorExpression,
                     Expression finalSeparatorExpression)
              throws VilException

Create a loop-statement.

Parameters:

iteratorVar - the iterator variable (name and type of iterator variable)

containerExpression - the container to iterate over

statement - the loop-statement which may subsumes a set of template elements that will be processed multiple times.

separatorExpression - an optional separator expression to be emitted between elements (may be null)

finalSeparatorExpression - an optional separator expression to be emitted after the last element (may be null)

Throws:

VilException - in case of semantic problems while creating this loop object

Method Detail

getSeparatorExpression

public Expression getSeparatorExpression()

Returns the optional separator expression.

Returns:

the separator expression or null

getFinalSeparatorExpression

public Expression getFinalSeparatorExpression()

Returns the optional final separator expression.

Returns:

the separator expression or null

getIteratorVariable

public VariableDeclaration getIteratorVariable()

Returns the iterator variable.

Returns:

The iterator variable.

getContainerExpression

public Expression getContainerExpression()

Get the expression of this loop which defines the set of elements to iterate over.

Returns:

The Expression of this loop.

getLoopStatement

public ITemplateElement getLoopStatement()

Get the loop-statement which may subsume a set of template elements that will be processed multiple times.

Returns:

The template element that represents the loop-statement/block.

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