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/*
* SPDX-FileCopyrightText: 2021-2024 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.language.scoping;
import com.google.inject.Inject;
import com.google.inject.name.Named;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.xtext.naming.IQualifiedNameProvider;
import org.eclipse.xtext.naming.QualifiedName;
import org.eclipse.xtext.resource.IResourceDescriptionsProvider;
import org.eclipse.xtext.resource.ISelectable;
import org.eclipse.xtext.scoping.IScope;
import org.eclipse.xtext.scoping.impl.AbstractGlobalScopeDelegatingScopeProvider;
import org.eclipse.xtext.util.IResourceScopeCache;
import tools.refinery.language.naming.ProblemQualifiedNameProvider;
public class ProblemLocalScopeProvider extends AbstractGlobalScopeDelegatingScopeProvider {
private static final String CACHE_KEY = "tools.refinery.language.scoping.ProblemLocalScopeProvider.CACHE_KEY";
@Inject
@Named(ProblemQualifiedNameProvider.NAMED_DELEGATE)
private IQualifiedNameProvider delegateQualifiedNameProvider;
@Inject
private IResourceDescriptionsProvider resourceDescriptionsProvider;
@Inject
private IResourceScopeCache cache;
@Override
public IScope getScope(EObject context, EReference reference) {
var resource = context.eResource();
if (resource == null) {
return IScope.NULLSCOPE;
}
var globalScope = getGlobalScope(resource, reference);
var localImports = cache.get(CACHE_KEY, resource, () -> computeLocalImports(resource));
if (localImports == null) {
return globalScope;
}
var type = reference.getEReferenceType();
boolean ignoreCase = isIgnoreCase(reference);
return ShadowingKeyAwareSelectableBasedScope.createScope(globalScope, localImports, type, ignoreCase);
}
protected ISelectable computeLocalImports(Resource resource) {
// Force the use of ProblemResourceDescriptionStrategy to include all QualifiedNames of objects.
var resourceDescriptions = resourceDescriptionsProvider.getResourceDescriptions(resource.getResourceSet());
var resourceDescription = resourceDescriptions.getResourceDescription(resource.getURI());
if (resourceDescription == null) {
return null;
}
var rootElement = resource.getContents().getFirst();
if (rootElement == null) {
return new NoFullyQualifiedNamesSelectable(resourceDescription);
}
var rootName = delegateQualifiedNameProvider.getFullyQualifiedName(rootElement);
if (rootName == null) {
return new NoFullyQualifiedNamesSelectable(resourceDescription);
}
return new NormalizedSelectable(resourceDescription, rootName, QualifiedName.EMPTY);
}
}
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