Mercurial > hg > graal-compiler
view graal/com.oracle.graal.graph/src/com/oracle/graal/graph/GraalInternalError.java @ 6283:076c5635774d
Merge.
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 22 Aug 2012 16:21:14 +0200 |
parents | 12c63380e7ff |
children | 5e3d1a68664e |
line wrap: on
line source
/* * Copyright (c) 2011, 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. * * 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 com.oracle.graal.graph; import java.util.*; /** * This error represents a conditions that should never occur during normal operation. */ public class GraalInternalError extends Error { private static final long serialVersionUID = 8776065085829593278L; private Node node; private Graph graph; private final ArrayList<String> context = new ArrayList<>(); public static RuntimeException unimplemented() { throw new GraalInternalError("unimplemented"); } public static RuntimeException unimplemented(String msg) { throw new GraalInternalError("unimplemented: %s", msg); } public static RuntimeException shouldNotReachHere() { throw new GraalInternalError("should not reach here"); } public static RuntimeException shouldNotReachHere(String msg) { throw new GraalInternalError("should not reach here: %s", msg); } /** * This constructor creates a {@link GraalInternalError} with a message assembled via {@link String#format(String, Object...)}. * It always uses the ENGLISH locale in order to always generate the same output. * @param msg the message that will be associated with the error, in String.format syntax * @param args parameters to String.format - parameters that implement {@link Iterable} will be expanded into a [x, x, ...] representation. */ public GraalInternalError(String msg, Object... args) { super(format(msg, args)); } /** * This constructor creates a {@link GraalInternalError} for a given causing Throwable instance. * @param cause the original exception that contains additional information on this error */ public GraalInternalError(Throwable cause) { super(cause); } @Override public String toString() { StringBuilder str = new StringBuilder(); str.append(super.toString()); for (String s : context) { str.append("\n\tat ").append(s); } return str.toString(); } private static String format(String msg, Object... args) { if (args != null) { // expand Iterable parameters into a list representation for (int i = 0; i < args.length; i++) { if (args[i] instanceof Iterable<?>) { ArrayList<Object> list = new ArrayList<>(); for (Object o : (Iterable<?>) args[i]) { list.add(o); } args[i] = list.toString(); } } } return String.format(Locale.ENGLISH, msg, args); } public GraalInternalError addContext(String newContext) { this.context.add(newContext); return this; } public GraalInternalError addContext(String name, Object obj) { return addContext(format("%s: %s", name, obj)); } /** * Adds a graph to the context of this VerificationError. The first graph added via this method will be returned by {@link #graph()}. * @param newGraph the graph which is in a incorrect state, if the verification error was not caused by a specific node */ public GraalInternalError addContext(Graph newGraph) { if (newGraph != this.graph) { addContext("graph", newGraph); if (this.graph == null) { this.graph = newGraph; } } return this; } /** * Adds a node to the context of this VerificationError. The first node added via this method will be returned by {@link #node()}. * @param newNode the node which is in a incorrect state, if the verification error was caused by a node */ public GraalInternalError addContext(Node newNode) { if (newNode != this.node) { addContext("node", newNode); if (this.node == null) { this.node = newNode; } } return this; } public Node node() { return node; } public Graph graph() { return graph; } }