/******************************************************************************* * 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.IModuleSource; import org.eclipse.dltk.compiler.env.ISourceType; public class NameEnvironmentAnswer { private IModuleSource compilationUnit; private ISourceType[] sourceTypes; private AccessRestriction accessRestriction; public NameEnvironmentAnswer(IModuleSource 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 IModuleSource 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(); } }