/* * Copyright (c) 2015, 2022, 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.
*/
/** * Diagnostic information for a Snippet. * * @since 9 * @see jdk.jshell.JShell#diagnostics(jdk.jshell.Snippet)
*/ publicabstractclass Diag { // Simplified view on compiler Diagnostic.
/** * In-package creation only.
*/
Diag() {
}
/** * Used to signal that no position is available.
*/ publicstaticfinallong NOPOS = Diagnostic.NOPOS;
/** * Indicates whether this diagnostic is an error (as opposed to a warning or * note). * * @return {@code true} if this diagnostic is an error; otherwise {@code false}
*/ publicabstractboolean 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.
*/ publicabstractlong 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}
*/ publicabstractlong 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}
*/ publicabstractlong getEndPosition();
/** * Returns a diagnostic code indicating the type of diagnostic. The * code is implementation-dependent and might be {@code null}. * * @return a diagnostic code
*/ publicabstract 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
*/ publicabstract String getMessage(Locale locale);
// *** Internal support ***
/** * Internal: If this is from a compile/analyze wrapped in an outer class, extract the snippet. * Otherwise null.
*/
Snippet snippetOrNull() { returnnull;
}
/** * 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 method does not override superclass error
*/ boolean isOverrideError() { return getCode().equals("compiler.err.method.does.not.override.superclass");
}
/** * This is a resolution error.
*/ boolean isResolutionError() { //TODO: try javac RESOLVE_ERROR flag return getCode().startsWith("compiler.err.cant.resolve")
|| getCode().equals("compiler.err.cant.apply.symbol");
}
}
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