Package net.ssehub.easy.varModel.cst

Class EmptyInitializer

java.lang.Object

net.ssehub.easy.varModel.cst.ConstraintSyntaxTree

net.ssehub.easy.varModel.cst.Leaf

net.ssehub.easy.varModel.cst.EmptyInitializer

All Implemented Interfaces:

IAttributeAccess

public class EmptyInitializer
extends Leaf

An internal temporary node representing an untyped empty initializer. Problem is that we allow the same syntax for empty compound and container initializers, i.e., we can only distinguish them according to their target type. This target type is not available in operation calls, as the operation is not yet determined. Thus, instances of this node (singleton, constant) can be used while parsing but shall be replaced by operation resolution as soon as it becomes clear which type actually shall be used.

Author:

Holger Eichelberger

Field Summary

Fields

Modifier and Type	Field	Description
static final EmptyInitializer	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	EmptyInitializer()	Prevents external initialization.

Method Summary

Modifier and Type	Method	Description
void	accept(IConstraintTreeVisitor visitor)	Visiting method for the visitor.
IDatatype	inferDatatype()	Infers the datatype of the subtree represented by this object.

Methods inherited from class net.ssehub.easy.varModel.cst.ConstraintSyntaxTree

getAttribute, getAttribute, getAttributesCount, getContainedType, getName, getParent, isSemanticallyEqual

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final EmptyInitializer INSTANCE

Constructor Details

EmptyInitializer

private EmptyInitializer()

Prevents external initialization.

Method Details

accept

public void accept(IConstraintTreeVisitor visitor)

Description copied from class: ConstraintSyntaxTree

Visiting method for the visitor.
This method is used for saving this model element.

Specified by:

accept in class ConstraintSyntaxTree

Parameters:

visitor - The visitor, which should save this model element.

inferDatatype

public IDatatype inferDatatype()
                        throws CSTSemanticException

Description copied from class: ConstraintSyntaxTree

Infers the datatype of the subtree represented by this object.

Specified by:

inferDatatype in class ConstraintSyntaxTree

Returns:

the data type

Throws:

CSTSemanticException - Will be thrown if parameters of (sub-) trees do not fit together.