CompletionOnQualifiedAllocationExpression.java

/*******************************************************************************
 * Copyright (c) 2000, 2009 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 an allocation expression containing the cursor.
 * If the allocation expression is not qualified, the enclosingInstance field
 * is null.
 * e.g.
 *
 *	class X {
 *    void foo() {
 *      new Bar(1, 2, [cursor]
 *    }
 *  }
 *
 *	---> class X {
 *         void foo() {
 *           <CompleteOnAllocationExpression:new Bar(1, 2)>
 *         }
 *       }
 *
 * The source range is always of length 0.
 * The arguments of the allocation expression are all the arguments defined
 * before the cursor.
 */

import org.eclipse.jdt.internal.compiler.ast.QualifiedAllocationExpression;
import org.eclipse.jdt.internal.compiler.ast.SingleTypeReference;
import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;

public class CompletionOnQualifiedAllocationExpression extends QualifiedAllocationExpression {
	public TypeBinding resolveType(BlockScope scope) {
		if (this.arguments != null) {
			int argsLength= this.arguments.length;
			for (int a= argsLength; --a >= 0;)
				this.arguments[a].resolveType(scope);
		}

		if (this.enclosingInstance != null) {
			TypeBinding enclosingType= this.enclosingInstance.resolveType(scope);
			if (enclosingType == null || !(enclosingType instanceof ReferenceBinding)) {
				throw new CompletionNodeFound();
			}
			this.resolvedType= ((SingleTypeReference)this.type).resolveTypeEnclosing(scope, (ReferenceBinding)enclosingType);
			if (!(this.resolvedType instanceof ReferenceBinding))
				throw new CompletionNodeFound(); // no need to continue if its an array or base type
			if (this.resolvedType.isInterface()) // handle the anonymous class definition case
				this.resolvedType= scope.getJavaLangObject();
		} else {
			this.resolvedType= this.type.resolveType(scope, true /* check bounds*/);
			if (!(this.resolvedType instanceof ReferenceBinding))
				throw new CompletionNodeFound(); // no need to continue if its an array or base type
		}

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

	public StringBuffer printExpression(int indent, StringBuffer output) {
		if (this.enclosingInstance == null)
			output.append("<CompleteOnAllocationExpression:"); //$NON-NLS-1$
		else
			output.append("<CompleteOnQualifiedAllocationExpression:"); //$NON-NLS-1$
		return super.printExpression(indent, output).append('>');
	}
}