org.eclipse.xtext.xbase.linking
Class BestMatchingJvmFeatureScope

java.lang.Object
  org.eclipse.xtext.xbase.linking.BestMatchingJvmFeatureScope

All Implemented Interfaces:

IScope

public class BestMatchingJvmFeatureScope
extends java.lang.Object
implements IScope

A scope which goes through all returned EObjectDescriptions in order to find the best fit, if it is asked for the 'first' element.

Author:

Sven Efftinge - Initial contribution and API

Field Summary

protected org.eclipse.emf.ecore.EObject	context
protected org.eclipse.emf.ecore.EReference	reference

Fields inherited from interface org.eclipse.xtext.scoping.IScope

NULLSCOPE

Constructor Summary

BestMatchingJvmFeatureScope(TypeConformanceComputer conformanceComputer, org.eclipse.emf.ecore.EObject context, org.eclipse.emf.ecore.EReference ref, IScope delegate, FeatureCallChecker featureCallChecker, IRawTypeHelper rawTypeHelper)

Method Summary

java.lang.Iterable<IEObjectDescription>	getAllElements() Obtain all elements from the scope.
protected JvmFeatureDescription	getBestConformanceMatch(JvmFeatureDescription featureDescriptionA, JvmFeatureDescription featureDescriptionB)
protected IEObjectDescription	getBestMatch(IEObjectDescription a, IEObjectDescription b)
protected IEObjectDescription	getBestMatch(java.lang.Iterable<IEObjectDescription> iterable)
java.lang.Iterable<IEObjectDescription>	getElements(org.eclipse.emf.ecore.EObject object) Find all descriptions that match the given instance.
java.lang.Iterable<IEObjectDescription>	getElements(QualifiedName name) Find all descriptions that match the given name.
IEObjectDescription	getSingleElement(org.eclipse.emf.ecore.EObject object) Find the first description that matches the given instance.
IEObjectDescription	getSingleElement(QualifiedName name) Find the first description that matches the given name.
protected IValidatedEObjectDescription	selectByIssueCode(IValidatedEObjectDescription descA, IValidatedEObjectDescription descB)
protected IEObjectDescription	setImplicitReceiverAndIsValid(IEObjectDescription bestMatch)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

context

protected final org.eclipse.emf.ecore.EObject context

reference

protected final org.eclipse.emf.ecore.EReference reference

Constructor Detail

BestMatchingJvmFeatureScope

public BestMatchingJvmFeatureScope(TypeConformanceComputer conformanceComputer,
                                   org.eclipse.emf.ecore.EObject context,
                                   org.eclipse.emf.ecore.EReference ref,
                                   IScope delegate,
                                   FeatureCallChecker featureCallChecker,
                                   IRawTypeHelper rawTypeHelper)

Method Detail

getAllElements

public java.lang.Iterable<IEObjectDescription> getAllElements()

Description copied from interface: IScope

Obtain all elements from the scope. Implementors a free to throw an UnsupportedOperationException if the scope cannot be enumerated.

Specified by:

getAllElements in interface IScope

Returns:

all elements of the scope. Never null.

getElements

public java.lang.Iterable<IEObjectDescription> getElements(org.eclipse.emf.ecore.EObject object)

Description copied from interface: IScope

Find all descriptions that match the given instance.

Specified by:

getElements in interface IScope

Parameters:

object - the instance whose descriptions should be obtained. May not be null.

Returns:

all elements that match the instance. Never null.

getElements

public java.lang.Iterable<IEObjectDescription> getElements(QualifiedName name)

Description copied from interface: IScope

Find all descriptions that match the given name.

Specified by:

getElements in interface IScope

Parameters:

name - the name of the to-be-found elements. May not be null.

Returns:

all elements that match the name. Never null.

getSingleElement

public IEObjectDescription getSingleElement(org.eclipse.emf.ecore.EObject object)

Description copied from interface: IScope

Find the first description that matches the given instance.

Specified by:

getSingleElement in interface IScope

Parameters:

object - the instance whose description should be obtained. May not be null.

Returns:

the first element that matches the instance. May be null.

getSingleElement

public IEObjectDescription getSingleElement(QualifiedName name)

Description copied from interface: IScope

Find the first description that matches the given name.

Specified by:

getSingleElement in interface IScope

Parameters:

name - the name of the to-be-found element. May not be null.

Returns:

the first element that matches the name. May be null.

setImplicitReceiverAndIsValid

protected IEObjectDescription setImplicitReceiverAndIsValid(IEObjectDescription bestMatch)

getBestMatch

protected IEObjectDescription getBestMatch(java.lang.Iterable<IEObjectDescription> iterable)

getBestMatch

protected IEObjectDescription getBestMatch(IEObjectDescription a,
                                           IEObjectDescription b)

selectByIssueCode

protected IValidatedEObjectDescription selectByIssueCode(IValidatedEObjectDescription descA,
                                                         IValidatedEObjectDescription descB)

getBestConformanceMatch

protected JvmFeatureDescription getBestConformanceMatch(JvmFeatureDescription featureDescriptionA,
                                                        JvmFeatureDescription featureDescriptionB)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object