001/*
002 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.replacements;
024
025import com.oracle.graal.compiler.common.*;
026import com.oracle.graal.replacements.nodes.*;
027
028// JaCoCo Exclude
029public final class ReplacementsUtil {
030    private ReplacementsUtil() {
031        // empty
032    }
033
034    public static final boolean REPLACEMENTS_ASSERTIONS_ENABLED;
035
036    static {
037        boolean assertionsEnabled = false;
038        assert (assertionsEnabled = true) != false;
039        REPLACEMENTS_ASSERTIONS_ENABLED = assertionsEnabled && GraalOptions.ImmutableCode.getValue() == false;
040    }
041
042    /**
043     * Asserts that condition evaluates to true by the time compilation is finished. This is
044     * intended to be used within snippets or stubs, and will lead to a compile error if the
045     * assertion fails.
046     */
047    public static void staticAssert(boolean condition, String message) {
048        if (REPLACEMENTS_ASSERTIONS_ENABLED) {
049            AssertionNode.assertion(true, condition, message);
050        }
051    }
052
053    /**
054     * Asserts that condition evaluates to true at runtime. This is intended to be used within
055     * snippets or stubs, and will lead to a VM error if it fails.
056     */
057    public static void runtimeAssert(boolean condition, String message) {
058        if (REPLACEMENTS_ASSERTIONS_ENABLED) {
059            AssertionNode.assertion(false, condition, message);
060        }
061    }
062}