/*

 * Copyright (c) 2015, 2018, 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

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 * questions.

 */

package org.graalvm.compiler.core.test;

import static org.graalvm.compiler.core.test.GraalCompilerTest.getInitialOptions;

import java.lang.reflect.Method;

import org.graalvm.compiler.api.test.Graal;

import org.graalvm.compiler.debug.DebugCloseable;

import org.graalvm.compiler.debug.DebugHandlersFactory;

import org.graalvm.compiler.debug.DebugContext;

import org.graalvm.compiler.java.GraphBuilderPhase;

import org.graalvm.compiler.nodes.StructuredGraph;

import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;

import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins;

import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;

import org.graalvm.compiler.options.OptionValues;

import org.graalvm.compiler.phases.OptimisticOptimizations;

import org.graalvm.compiler.phases.PhaseSuite;

import org.graalvm.compiler.phases.VerifyPhase;

import org.graalvm.compiler.phases.tiers.HighTierContext;

import org.graalvm.compiler.phases.util.Providers;

import org.graalvm.compiler.runtime.RuntimeProvider;

import org.graalvm.compiler.test.GraalTest;

import org.junit.Assume;

import org.junit.Test;

import jdk.vm.ci.meta.MetaAccessProvider;

import jdk.vm.ci.meta.ResolvedJavaMethod;

/**

 * Test that interfaces are correctly initialized by a static field resolution during eager graph

 * building.

 */

public class StaticInterfaceFieldTest extends GraalTest {

    private interface I {

        Object CONST = new Object() {

        };

    }

    private static final class C implements I {

        @SuppressWarnings({"static-method", "unused"})

        public Object test() {

            return CONST;

        }

    }

    @Test

    public void test() {

        eagerlyParseMethod(C.class, "test");

    }

    @SuppressWarnings("try")

    private void eagerlyParseMethod(Class<C> clazz, String methodName) {

        RuntimeProvider rt = Graal.getRequiredCapability(RuntimeProvider.class);

        Providers providers = rt.getHostBackend().getProviders();

        MetaAccessProvider metaAccess = providers.getMetaAccess();

        PhaseSuite<HighTierContext> graphBuilderSuite = new PhaseSuite<>();

        Plugins plugins = new Plugins(new InvocationPlugins());

        GraphBuilderConfiguration config = GraphBuilderConfiguration.getDefault(plugins).withEagerResolving(true).withUnresolvedIsError(true);

        graphBuilderSuite.appendPhase(new GraphBuilderPhase(config));

        HighTierContext context = new HighTierContext(providers, graphBuilderSuite, OptimisticOptimizations.NONE);

        Assume.assumeTrue(VerifyPhase.class.desiredAssertionStatus());

        final Method m = getMethod(clazz, methodName);

        ResolvedJavaMethod method = metaAccess.lookupJavaMethod(m);

        OptionValues options = getInitialOptions();

        DebugContext debug = DebugContext.create(options, DebugHandlersFactory.LOADER);

        StructuredGraph graph = new StructuredGraph.Builder(options, debug).method(method).build();

        try (DebugCloseable s = debug.disableIntercept(); DebugContext.Scope ds = debug.scope("GraphBuilding", graph, method)) {

            graphBuilderSuite.apply(graph, context);

        } catch (Throwable e) {

            throw debug.handle(e);

        }

    }

}