hotspot/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.replacements/src/org/graalvm/compiler/replacements/ReplacementsUtil.java

/*
 * Copyright (c) 2014, 2015, 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 org.graalvm.compiler.replacements;

import org.graalvm.compiler.core.common.GraalOptions;
import org.graalvm.compiler.replacements.nodes.AssertionNode;

// JaCoCo Exclude
public final class ReplacementsUtil {
    private ReplacementsUtil() {
        // empty
    }

    public static final boolean REPLACEMENTS_ASSERTIONS_ENABLED;

    static {
        boolean assertionsEnabled = false;
        assert (assertionsEnabled = true) != false;
        REPLACEMENTS_ASSERTIONS_ENABLED = assertionsEnabled && GraalOptions.ImmutableCode.getValue() == false;
    }

    /**
     * Asserts that condition evaluates to true by the time compilation is finished. This is
     * intended to be used within snippets or stubs, and will lead to a compile error if the
     * assertion fails.
     */
    public static void staticAssert(boolean condition, String message) {
        if (REPLACEMENTS_ASSERTIONS_ENABLED) {
            AssertionNode.assertion(true, condition, message);
        }
    }

    /**
     * Asserts that condition evaluates to true at runtime. This is intended to be used within
     * snippets or stubs, and will lead to a VM error if it fails.
     */
    public static void runtimeAssert(boolean condition, String message) {
        if (REPLACEMENTS_ASSERTIONS_ENABLED) {
            AssertionNode.assertion(false, condition, message);
        }
    }
}