Java Code Examples for org.eclipse.xtext.xtype.XComputedTypeReference#setTypeProvider()

protected JvmTypeReference createComputedTypeReference(
			Map<JvmIdentifiableElement, ResolvedTypes> resolvedTypesByContext,
			ResolvedTypes resolvedTypes,
			IFeatureScopeSession featureScopeSession,
			JvmMember member,
			/* @Nullable */ InferredTypeIndicator indicator,
			boolean returnType) {
		XComputedTypeReference result = getServices().getXtypeFactory().createXComputedTypeReference();
		if (indicator == null || indicator.getExpression() == null)
			result.setTypeProvider(createTypeProvider(resolvedTypesByContext, resolvedTypes, featureScopeSession, member, returnType));
		else
			result.setTypeProvider(createTypeProvider(resolvedTypesByContext, resolvedTypes, featureScopeSession, member, indicator.getExpression(), returnType));
		// TODO do we need a lightweight computed type reference?
//		resolvedTypes.setType(member, result);
		return result;
	}
 

/**
 * Initializes the type inference strategy for the cache field for create extensions.
 */
@Override
protected void _doPrepare(ResolvedTypes resolvedTypes, IFeatureScopeSession featureScopeSession, JvmField field,
		Map<JvmIdentifiableElement, ResolvedTypes> resolvedTypesByContext) {
	JvmTypeReference knownType = field.getType();
	if (InferredTypeIndicator.isInferred(knownType)) {
		XComputedTypeReference castedKnownType = (XComputedTypeReference) knownType;
		EObject sourceElement = associations.getPrimarySourceElement(field);
		if (sourceElement instanceof XtendFunction) {
			XtendFunction function = (XtendFunction) sourceElement;
			if (function.getCreateExtensionInfo() != null) {
				JvmOperation operation = associations.getDirectlyInferredOperation(function);
				if (operation != null) {
					declareTypeParameters(resolvedTypes, field, resolvedTypesByContext);
					XComputedTypeReference fieldType = getServices().getXtypeFactory().createXComputedTypeReference();
					fieldType.setTypeProvider(new CreateCacheFieldTypeReferenceProvider(operation, resolvedTypes, featureScopeSession));
					castedKnownType.setEquivalent(fieldType);
					return;
				}
			}
		}
	}
	super._doPrepare(resolvedTypes, featureScopeSession, field, resolvedTypesByContext);
	doPrepareLocalTypes(resolvedTypesByContext.get(field), featureScopeSession, field, resolvedTypesByContext);
}
 

protected void requestCapturedLocalVariables(JvmTypeReference toBeWrapped, JvmDeclaredType type, ResolvedTypes resolvedTypes, Map<JvmIdentifiableElement, ResolvedTypes> resolvedTypesByContext, IAcceptor<JvmTypeReference> result) {
	LocalVariableCapturerImpl capturer = new LocalVariableCapturerImpl(toBeWrapped, type, this, resolvedTypes, resolvedTypesByContext);
	XComputedTypeReference ref = getServices().getXtypeFactory().createXComputedTypeReference();
	ref.setTypeProvider(capturer);
	result.accept(ref);
	capturer.awaitCapturing();
}
 

@Override
public JvmTypeReference toTypeReference() {
	if (internalGetResolvedTo() != null) {
		return resolvedTo.toTypeReference();
	}
	XComputedTypeReference result = getServices().getXtypeFactory().createXComputedTypeReference();
	result.setTypeProvider(new UnboundTypeReferenceResolver(this));
	return result;
}
 

/**
 * Produces an inferred type which will be resolved on demand. It should not be attempted to resolve
 * this type during the model inference.
 * 
 * @param expression the expression that will be used resolve the type. May not be <code>null</code>.
 * @return an inferred type.
 */
public JvmTypeReference inferredType(XExpression expression) {
	Preconditions.checkNotNull(expression);
	XComputedTypeReference result = xtypesFactory.createXComputedTypeReference();
	result.setTypeProvider(new InferredTypeIndicator(expression));
	return result;
}
 

/**
 * Produces an inferred type which will be resolved on demand. It should not be attempted to resolve
 * this type during the model inference.
 * 
 * @return an inferred type.
 */
public JvmTypeReference inferredType() {
	XComputedTypeReference result = xtypesFactory.createXComputedTypeReference();
	result.setTypeProvider(new InferredTypeIndicator(null));
	return result;
}