org.eclipse.xtext.common.types.util
Class LazyTypeArgumentContext

java.lang.Object
  org.eclipse.xtext.common.types.util.LazyTypeArgumentContext

All Implemented Interfaces:

ITypeArgumentContext, TypeArgumentContextProvider.IInitializableTypeArgumentContext

public class LazyTypeArgumentContext
extends java.lang.Object
implements TypeArgumentContextProvider.IInitializableTypeArgumentContext

Implementation of the ITypeArgumentContext that encapsulates how the available information of an TypeArgumentContextProvider.Request will be used to resolve type parameters. It maintains a chain of delegate contexts and knows which delegate has to was already produced and which will be created next on demand. Prior to using the class, clients have to initialize it.

Author:

Sebastian Zarnekow - Initial contribution and API

Nested Class Summary

protected class

LazyTypeArgumentContext.IsResolvedVisitor

Constructor Summary

LazyTypeArgumentContext()

Method Summary

protected ITypeArgumentContext	computeNext()
protected ITypeArgumentContext	doComputeNext()
JvmTypeReference	getBoundArgument(JvmTypeParameter parameter)
JvmTypeReference	getLowerBound(JvmTypeReference reference)
JvmTypeReference	getUpperBound(JvmTypeReference reference, org.eclipse.emf.common.notify.Notifier context)
protected boolean	hasNextLevel()
void	initialize(TypeArgumentContextProvider.Request request, TypeArgumentContextProvider contextProvider)
boolean	isRawTypeContext()
protected boolean	isResolved(JvmTypeReference reference, boolean rawType)
protected boolean	isResolved(JvmTypeReference reference, boolean rawType, boolean firstWildcardUnresolved)
JvmTypeReference	resolve(JvmTypeReference reference)

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyTypeArgumentContext

public LazyTypeArgumentContext()

Method Detail

initialize

public void initialize(TypeArgumentContextProvider.Request request,
                       TypeArgumentContextProvider contextProvider)

Specified by:

initialize in interface TypeArgumentContextProvider.IInitializableTypeArgumentContext

isRawTypeContext

public boolean isRawTypeContext()

Specified by:

isRawTypeContext in interface ITypeArgumentContext

getBoundArgument

public JvmTypeReference getBoundArgument(JvmTypeParameter parameter)

Specified by:

getBoundArgument in interface ITypeArgumentContext

getLowerBound

public JvmTypeReference getLowerBound(JvmTypeReference reference)

Specified by:

getLowerBound in interface ITypeArgumentContext

getUpperBound

public JvmTypeReference getUpperBound(JvmTypeReference reference,
                                      org.eclipse.emf.common.notify.Notifier context)

Specified by:

getUpperBound in interface ITypeArgumentContext

resolve

public JvmTypeReference resolve(JvmTypeReference reference)

Specified by:

resolve in interface ITypeArgumentContext

hasNextLevel

protected boolean hasNextLevel()

computeNext

protected ITypeArgumentContext computeNext()

doComputeNext

protected ITypeArgumentContext doComputeNext()

isResolved

protected boolean isResolved(JvmTypeReference reference,
                             boolean rawType)

isResolved

protected boolean isResolved(JvmTypeReference reference,
                             boolean rawType,
                             boolean firstWildcardUnresolved)