/*
 * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */


package org.graalvm.compiler.replacements.test;

import org.graalvm.compiler.core.common.CompilationIdentifier;
import org.graalvm.compiler.core.test.GraalCompilerTest;
import org.graalvm.compiler.nodes.StructuredGraph;
import org.graalvm.compiler.options.OptionValues;

import jdk.vm.ci.code.InstalledCode;
import jdk.vm.ci.meta.JavaTypeProfile;
import jdk.vm.ci.meta.JavaTypeProfile.ProfiledType;
import jdk.vm.ci.meta.ResolvedJavaMethod;
import jdk.vm.ci.meta.TriState;

/**
 * Base class for instanceof test classes.
 */
public abstract class TypeCheckTest extends GraalCompilerTest {

    protected abstract void replaceProfile(StructuredGraph graph, JavaTypeProfile profile);

    protected JavaTypeProfile currentProfile;

    @Override
    protected StructuredGraph parseForCompile(ResolvedJavaMethod method, CompilationIdentifier compilationId, OptionValues options) {
        StructuredGraph graph = super.parseForCompile(method, compilationId, options);
        if (currentProfile != null) {
            replaceProfile(graph, currentProfile);
        }
        return graph;
    }

    @Override
    protected InstalledCode getCode(final ResolvedJavaMethod method, final StructuredGraph graph, boolean ignore, boolean installAsDefault, OptionValues options) {
        return super.getCode(method, graph, currentProfile != null, installAsDefault, options);
    }

    protected JavaTypeProfile profile(Class<?>... types) {
        return profile(TriState.FALSE, types);
    }

    protected JavaTypeProfile profile(TriState nullSeen, Class<?>... types) {
        if (types.length == 0) {
            return null;
        }
        ProfiledType[] ptypes = new ProfiledType[types.length];
        for (int i = 0; i < types.length; i++) {
            ptypes[i] = new ProfiledType(getMetaAccess().lookupJavaType(types[i]), 1.0D / types.length);
        }
        return new JavaTypeProfile(nullSeen, 0.0D, ptypes);
    }

    protected void test(String name, JavaTypeProfile profile, Object... args) {
        assert currentProfile == null;
        currentProfile = profile;
        try {
            super.test(name, args);
        } finally {
            currentProfile = null;
        }
    }
}
