| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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 |
| * |
| |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.compiler.env; |
| |
| import org.eclipse.dltk.compiler.env.ISourceModule; |
| import org.eclipse.dltk.compiler.env.ISourceType; |
| |
| public class NameEnvironmentAnswer { |
| private ISourceModule compilationUnit; |
| private ISourceType[] sourceTypes; |
| private AccessRestriction accessRestriction; |
| |
| public NameEnvironmentAnswer(ISourceModule compilationUnit, |
| AccessRestriction accessRestriction) { |
| this.compilationUnit = compilationUnit; |
| this.accessRestriction = accessRestriction; |
| } |
| |
| public NameEnvironmentAnswer(ISourceType[] sourceTypes, |
| AccessRestriction accessRestriction) { |
| this.sourceTypes = sourceTypes; |
| this.accessRestriction = accessRestriction; |
| } |
| |
| /** |
| * Returns the associated access restriction, or null if none. |
| */ |
| public AccessRestriction getAccessRestriction() { |
| return this.accessRestriction; |
| } |
| |
| /** |
| * Answer the compilation unit or null if the receiver represents a binary |
| * or source type. |
| */ |
| public ISourceModule getSourceModule() { |
| return this.compilationUnit; |
| } |
| |
| /** |
| * Answer the unresolved source forms for the type or null if the receiver |
| * represents a compilation unit or binary type. |
| * |
| * Multiple source forms can be answered in case the originating compilation |
| * unit did contain several type at once. Then the first type is guaranteed |
| * to be the requested type. |
| */ |
| public ISourceType[] getSourceTypes() { |
| return this.sourceTypes; |
| } |
| |
| /** |
| * Answer whether the receiver contains the compilation unit which defines |
| * the type. |
| */ |
| public boolean isSourceModule() { |
| return this.compilationUnit != null; |
| } |
| |
| /** |
| * Answer whether the receiver contains the unresolved source form of the |
| * type. |
| */ |
| public boolean isSourceType() { |
| return this.sourceTypes != null; |
| } |
| |
| public boolean ignoreIfBetter() { |
| return this.accessRestriction != null |
| && this.accessRestriction.ignoreIfBetter(); |
| } |
| |
| /* |
| * Returns whether this answer is better than the other awswer. (accessible |
| * is better than discouraged, which is better than non-accessible) |
| */ |
| public boolean isBetter(NameEnvironmentAnswer otherAnswer) { |
| if (otherAnswer == null) |
| return true; |
| if (this.accessRestriction == null) |
| return true; |
| return otherAnswer.accessRestriction != null |
| && this.accessRestriction.getProblemId() < otherAnswer.accessRestriction |
| .getProblemId(); |
| } |
| } |