1 /* 2 * Copyright (c) 2014, 2018, 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.replacements; 26 27 import jdk.vm.ci.meta.JavaKind; 28 import jdk.vm.ci.meta.MetaAccessProvider; 29 30 import org.graalvm.compiler.api.replacements.Fold; 31 import org.graalvm.compiler.api.replacements.Fold.InjectedParameter; 32 import org.graalvm.compiler.debug.Assertions; 33 import org.graalvm.compiler.replacements.nodes.AssertionNode; 34 35 // JaCoCo Exclude 36 public final class ReplacementsUtil { 37 private ReplacementsUtil() { 38 // empty 39 } 40 41 public static final boolean REPLACEMENTS_ASSERTIONS_ENABLED = Assertions.assertionsEnabled(); 42 43 /** 44 * Asserts that condition evaluates to true by the time compilation is finished. This is 45 * intended to be used within snippets or stubs, and will lead to a compile error if the 46 * assertion fails. 47 */ 48 public static void staticAssert(boolean condition, String message) { 49 if (REPLACEMENTS_ASSERTIONS_ENABLED) { 50 AssertionNode.assertion(true, condition, message); 51 } 52 } 53 54 /** 55 * Asserts that condition evaluates to true at runtime. This is intended to be used within 56 * snippets or stubs, and will lead to a VM error if it fails. 57 */ 58 public static void runtimeAssert(boolean condition, String message) { 59 if (REPLACEMENTS_ASSERTIONS_ENABLED) { 60 AssertionNode.assertion(false, condition, message); 61 } 62 } 63 64 @Fold 65 public static int arrayIndexScale(@InjectedParameter MetaAccessProvider metaAccessProvider, JavaKind elementKind) { 66 return metaAccessProvider.getArrayIndexScale(elementKind); 67 } 68 69 @Fold 70 public static int getArrayBaseOffset(@InjectedParameter MetaAccessProvider metaAccessProvider, JavaKind elementKind) { 71 return metaAccessProvider.getArrayBaseOffset(elementKind); 72 } 73 74 }