1 /* 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.debug; 26 27 import org.graalvm.compiler.options.Option; 28 import org.graalvm.compiler.options.OptionKey; 29 import org.graalvm.compiler.options.OptionType; 30 import org.graalvm.compiler.options.OptionValues; 31 32 /** 33 * Utility for query whether assertions are enabled. 34 */ 35 public class Assertions { 36 /** 37 * Determines if assertions are enabled. Strictly speaking, this may only be true for the 38 * {@link Assertions} class but we assume assertions are enabled/disabled for Graal as a whole. 39 */ 40 public static boolean assertionsEnabled() { 41 boolean enabled = false; 42 assert (enabled = true) == true; 43 return enabled; 44 } 45 46 /** 47 * Determines if detailed assertions are enabled. This requires that the normal assertions are 48 * also enabled. 49 * 50 * @param values the current OptionValues that might define a value for DetailAsserts. 51 */ 52 public static boolean detailedAssertionsEnabled(OptionValues values) { 53 return assertionsEnabled() && Options.DetailedAsserts.getValue(values); 54 } 55 56 // @formatter:off 57 public static class Options { 58 59 @Option(help = "Enable expensive assertions if normal assertions (i.e. -ea or -esa) are enabled.", type = OptionType.Debug) 60 public static final OptionKey<Boolean> DetailedAsserts = new OptionKey<>(false); 61 62 } 63 // @formatter:on 64 }