| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.corext.refactoring.typeconstraints; |
| |
| import org.eclipse.jdt.core.dom.ITypeBinding; |
| |
| import org.eclipse.jdt.internal.corext.dom.Bindings; |
| import org.eclipse.jdt.internal.corext.dom.TypeRules; |
| |
| public abstract class ConstraintVariable { |
| /** |
| * The type binding, or <code>null</code>. |
| */ |
| private final ITypeBinding fTypeBinding; |
| |
| /** |
| * @param binding the type binding, or <code>null</code> |
| */ |
| protected ConstraintVariable(ITypeBinding binding) { |
| fTypeBinding= binding; |
| } |
| |
| public boolean canBeAssignedTo(ConstraintVariable targetVariable) { |
| if (fTypeBinding == null || targetVariable.fTypeBinding == null) |
| return false; |
| return TypeRules.canAssign(fTypeBinding, targetVariable.fTypeBinding); |
| } |
| |
| public String toResolvedString() { |
| if (fTypeBinding == null) |
| return "<NULL BINDING>"; //$NON-NLS-1$ |
| return Bindings.asString(fTypeBinding); |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#toString() |
| */ |
| public String toString() { |
| return toResolvedString(); |
| } |
| |
| /** |
| * @return the type binding or <code>null</code> |
| */ |
| //TODO: rename to getTypeBinding() |
| public ITypeBinding getBinding() { |
| return fTypeBinding; |
| } |
| |
| /** |
| * For storing additional information associated with constraint variables. |
| * Added in anticipation of the generics-related refactorings. |
| */ |
| private Object fData; |
| |
| public Object getData(){ |
| return fData; |
| } |
| |
| public void setData(Object data){ |
| fData= data; |
| } |
| } |