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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.intellij.schema;
import com.intellij.codeInsight.lookup.LookupElement;
import com.intellij.codeInsight.lookup.LookupElementBuilder;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiElementResolveResult;
import com.intellij.psi.PsiNamedElement;
import com.intellij.psi.PsiPolyVariantReference;
import com.intellij.psi.PsiReferenceBase;
import com.intellij.psi.ResolveResult;
import com.intellij.util.IncorrectOperationException;
import ai.vespa.intellij.schema.psi.SdDeclaration;
import java.util.ArrayList;
import java.util.List;
/**
* A reference to a Psi Element.
*
* @author Shahar Ariel
*/
public class SdReference extends PsiReferenceBase<PsiElement> implements PsiPolyVariantReference {
private final String elementName;
public SdReference(PsiElement element, TextRange textRange) {
super(element, textRange);
elementName = element.getText().substring(textRange.getStartOffset(), textRange.getEndOffset());
}
@Override
public ResolveResult[] multiResolve(boolean incompleteCode) {
PsiElement file = myElement.getContainingFile();
final List<SdDeclaration> declarations = SdUtil.findDeclarationsByScope(file, myElement, elementName);
List<ResolveResult> results = new ArrayList<>();
for (SdDeclaration declaration : declarations) {
results.add(new PsiElementResolveResult(declaration));
}
return results.toArray(new ResolveResult[results.size()]);
}
@Override
public PsiElement resolve() {
ResolveResult[] resolveResults = multiResolve(false);
return resolveResults.length == 1 ? resolveResults[0].getElement() : null;
}
@Override
public Object[] getVariants() {
List<SdDeclaration> declarations = SdUtil.findDeclarations(myElement.getContainingFile());
List<LookupElement> variants = new ArrayList<>();
for (final SdDeclaration element : declarations) {
if (element.getName() != null && element.getName().length() > 0) {
variants.add(LookupElementBuilder
.create(element).withIcon(SdIcons.FILE)
.withTypeText(element.getContainingFile().getName())
);
}
}
return variants.toArray();
}
@Override
public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException {
return ((PsiNamedElement) myElement).setName(newElementName);
}
}
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