CompletionOnQualifiedNameReference.java

/*******************************************************************************
 * Copyright (c) 2000, 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.codeassist.complete;

/*
 * Completion node build by the parser in any case it was intending to
 * reduce a qualified name reference containing the completion identifier.
 * e.g.
 *
 *	class X {
 *    Y y;
 *    void foo() {
 *      y.fred.ba[cursor]
 *    }
 *  }
 *
 *	---> class X {
 *         Y y;
 *         void foo() {
 *           <CompleteOnName:y.fred.ba>
 *         }
 *       }
 *
 * The source range of the completion node denotes the source range
 * which should be replaced by the completion.
 */

import org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference;
import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.eclipse.jdt.internal.compiler.lookup.FieldBinding;
import org.eclipse.jdt.internal.compiler.lookup.MissingTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.ProblemFieldBinding;
import org.eclipse.jdt.internal.compiler.lookup.ProblemReasons;
import org.eclipse.jdt.internal.compiler.lookup.ProblemReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;

public class CompletionOnQualifiedNameReference extends QualifiedNameReference {
	public char[] completionIdentifier;

	public boolean isInsideAnnotationAttribute;

	public CompletionOnQualifiedNameReference(char[][] previousIdentifiers, char[] completionIdentifier, long[] positions, boolean isInsideAnnotationAttribute) {
		super(previousIdentifiers, positions, (int)(positions[0] >>> 32), (int)positions[positions.length - 1]);
		this.completionIdentifier= completionIdentifier;
		this.isInsideAnnotationAttribute= isInsideAnnotationAttribute;
	}

	public StringBuffer printExpression(int indent, StringBuffer output) {

		output.append("<CompleteOnName:"); //$NON-NLS-1$
		for (int i= 0; i < this.tokens.length; i++) {
			output.append(this.tokens[i]);
			output.append('.');
		}
		output.append(this.completionIdentifier).append('>');
		return output;
	}

	public TypeBinding resolveType(BlockScope scope) {
		// it can be a package, type, member type, local variable or field
		this.binding= scope.getBinding(this.tokens, this);
		if (!this.binding.isValidBinding()) {
			if (this.binding instanceof ProblemFieldBinding) {
				scope.problemReporter().invalidField(this, (FieldBinding)this.binding);
			} else if (this.binding instanceof ProblemReferenceBinding || this.binding instanceof MissingTypeBinding) {
				scope.problemReporter().invalidType(this, (TypeBinding)this.binding);
			} else {
				scope.problemReporter().unresolvableReference(this, this.binding);
			}

			if (this.binding.problemId() == ProblemReasons.NotFound) {
				throw new CompletionNodeFound(this, this.binding, scope);
			}

			throw new CompletionNodeFound();
		}

		throw new CompletionNodeFound(this, this.binding, scope);
	}
}