/*
 * Copyright (c) 2013, 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.
 *
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 */

/**
 * @test
 * @bug 8012941
 * @summary JSR 292: too deep inlining might crash compiler because of stack overflow
 *
 * @run main/othervm -Xbatch
 *                   -Djava.lang.invoke.MethodHandle.COMPILE_THRESHOLD=0
 *                   -XX:CompileThreshold=10
 *                   -XX:CompilerThreadStackSize=50
 *                   -XX:CompileCommand=compileonly,DeepInliningTest,m2
 *                   -XX:CompileCommand=inline,java/lang/invoke*,*
 *                      DeepInliningTest
 */
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;

public class DeepInliningTest {
    public static final MethodHandle constMH;
    static {
        try {
            MethodHandle localMH = MethodHandles.lookup().findStatic(DeepInliningTest.class, "m1", MethodType.methodType(boolean.class));

            // Nest MH type conversions to produce long chain of lambda forms
            final int DEPTH = Integer.getInteger("DEPTH", 200);
            for (int i = 0; i < DEPTH; i++) {
                localMH = localMH.asType(MethodType.methodType(Boolean.class));
                localMH = localMH.asType(MethodType.methodType(boolean.class));
            }

            localMH = localMH.asType(MethodType.methodType(Boolean.class));
            constMH = localMH;
        } catch (Exception e) {
            throw new Error(e);
        }
    }

    static boolean m1() { return true; }

    static boolean m2() throws Throwable {
        return (Boolean) constMH.invokeExact();
    }

    public static void main(String[] args) throws Throwable {
        for (int i = 0; i < 1000; i++) {
            try {
                boolean result = m2();
            } catch (StackOverflowError e) {
                System.out.println(i+": "+e);
            }
        }
        System.out.println("TEST PASSED");
    }
}