| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.jshell; |
| |
| import java.util.Locale; |
| import javax.tools.Diagnostic; |
| |
| /** |
| * Diagnostic information for a Snippet. |
| * @see jdk.jshell.JShell#diagnostics(jdk.jshell.Snippet) |
| */ |
| public abstract class Diag { |
| // Simplified view on compiler Diagnostic. |
| |
| /** |
| * Used to signal that no position is available. |
| */ |
| public final static long NOPOS = Diagnostic.NOPOS; |
| |
| /** |
| * Is this diagnostic and error (as opposed to a warning or note) |
| * @return true if this diagnostic is an error |
| */ |
| public abstract boolean isError(); |
| |
| /** |
| * Returns a character offset from the beginning of the source object |
| * associated with this diagnostic that indicates the location of |
| * the problem. In addition, the following must be true: |
| * |
| * <p>{@code getStartPostion() <= getPosition()} |
| * <p>{@code getPosition() <= getEndPosition()} |
| * |
| * @return character offset from beginning of source; {@link |
| * #NOPOS} if the position is not available. |
| */ |
| public abstract long getPosition(); |
| |
| /** |
| * Returns the character offset from the beginning of the file |
| * associated with this diagnostic that indicates the start of the |
| * problem. |
| * |
| * @return offset from beginning of file; {@link #NOPOS} if and |
| * only if {@link #getPosition()} returns {@link #NOPOS} |
| */ |
| public abstract long getStartPosition(); |
| |
| /** |
| * Returns the character offset from the beginning of the file |
| * associated with this diagnostic that indicates the end of the |
| * problem. |
| * |
| * @return offset from beginning of file; {@link #NOPOS} if and |
| * only if {@link #getPosition()} returns {@link #NOPOS} |
| */ |
| public abstract long getEndPosition(); |
| |
| /** |
| * Returns a diagnostic code indicating the type of diagnostic. The |
| * code is implementation-dependent and might be {@code null}. |
| * |
| * @return a diagnostic code |
| */ |
| public abstract String getCode(); |
| |
| /** |
| * Returns a localized message for the given locale. The actual |
| * message is implementation-dependent. If the locale is {@code |
| * null} use the default locale. |
| * |
| * @param locale a locale; might be {@code null} |
| * @return a localized message |
| */ |
| public abstract String getMessage(Locale locale); |
| |
| // *** Internal support *** |
| |
| /** |
| * Internal: If this is from a compile, extract the compilation Unit. |
| * Otherwise null. |
| */ |
| abstract Unit unitOrNull(); |
| |
| /** |
| * This is an unreachable-statement error |
| */ |
| boolean isUnreachableError() { |
| return getCode().equals("compiler.err.unreachable.stmt"); |
| } |
| |
| /** |
| * This is a not-a-statement error |
| */ |
| boolean isNotAStatementError() { |
| return getCode().equals("compiler.err.not.stmt"); |
| } |
| |
| /** |
| * This is a resolution error. |
| */ |
| boolean isResolutionError() { |
| //TODO: try javac RESOLVE_ERROR flag |
| return getCode().startsWith("compiler.err.cant.resolve"); |
| } |
| } |