BoxedStringTest.java

/*
 * Copyright (c) 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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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package com.oracle.truffle.api.interop.java.test;

import static org.junit.Assert.assertEquals;

import org.junit.Before;
import org.junit.Test;

import com.oracle.truffle.api.CallTarget;
import com.oracle.truffle.api.Truffle;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.interop.ForeignAccess;
import com.oracle.truffle.api.interop.Message;
import com.oracle.truffle.api.interop.TruffleObject;
import com.oracle.truffle.api.interop.java.JavaInterop;
import com.oracle.truffle.api.nodes.RootNode;

public class BoxedStringTest implements TruffleObject, ForeignAccess.Factory26 {
    public interface ExactMatchInterop {
        String stringValue();

        char charValue();
    }

    private String value;
    private ExactMatchInterop interop;

    @Before
    public void initObjects() {
        interop = JavaInterop.asJavaObject(ExactMatchInterop.class, this);
    }

    @Test
    public void convertToString() {
        value = "Hello";
        assertEquals("Hello", interop.stringValue());
    }

    @Test
    public void convertToChar() {
        value = "W";
        assertEquals('W', interop.charValue());
    }

    @Override
    public ForeignAccess getForeignAccess() {
        return ForeignAccess.create(BoxedStringTest.class, this);
    }

    @Override
    public CallTarget accessIsNull() {
        return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
    }

    @Override
    public CallTarget accessIsExecutable() {
        return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
    }

    @Override
    public CallTarget accessIsBoxed() {
        return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true));
    }

    @Override
    public CallTarget accessHasSize() {
        return null;
    }

    @Override
    public CallTarget accessGetSize() {
        return null;
    }

    @Override
    public CallTarget accessUnbox() {
        return Truffle.getRuntime().createCallTarget(new RootNode(null) {
            @Override
            public Object execute(VirtualFrame frame) {
                BoxedStringTest obj = (BoxedStringTest) ForeignAccess.getReceiver(frame);
                return obj.value;
            }
        });
    }

    @Override
    public CallTarget accessRead() {
        return Truffle.getRuntime().createCallTarget(new RootNode(null) {
            @Override
            public Object execute(VirtualFrame frame) {
                BoxedStringTest obj = (BoxedStringTest) ForeignAccess.getReceiver(frame);
                return obj;
            }
        });
    }

    @Override
    public CallTarget accessWrite() {
        return null;
    }

    @Override
    public CallTarget accessExecute(int argumentsLength) {
        return null;
    }

    @Override
    public CallTarget accessInvoke(int argumentsLength) {
        return null;
    }

    @Override
    public CallTarget accessNew(int argumentsLength) {
        return null;
    }

    @Override
    public CallTarget accessMessage(Message unknown) {
        return null;
    }

    @Override
    public CallTarget accessKeyInfo() {
        return null;
    }

    @Override
    public CallTarget accessKeys() {
        return null;
    }

    @Override
    public CallTarget accessIsPointer() {
        return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
    }

    @Override
    public CallTarget accessAsPointer() {
        return null;
    }

    @Override
    public CallTarget accessToNative() {
        return null;
    }

}