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 * Copyright (c) 2020, 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 3 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 3 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
 * 3 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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package com.oracle.truffle.r.ffi.impl.nodes;

import com.oracle.truffle.api.dsl.GenerateUncached;
import com.oracle.truffle.api.dsl.ImportStatic;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.library.CachedLibrary;
import com.oracle.truffle.r.runtime.DSLConfig;
import com.oracle.truffle.r.runtime.data.VectorDataLibrary;
import com.oracle.truffle.r.runtime.data.model.RAbstractAtomicVector;

@GenerateUncached
@ImportStatic(DSLConfig.class)
public abstract class INTEGER_ELTNode extends FFIUpCallNode.Arg2 {
    public static INTEGER_ELTNode create() {
        return INTEGER_ELTNodeGen.create();
    }

    @Specialization(limit = "getTypedVectorDataLibraryCacheSize()")
    protected int doIt(RAbstractAtomicVector vector, long index,
                    @CachedLibrary("vector.getData()") VectorDataLibrary dataLibrary) {
        // TODO: There should be no conversion of the element - just cast - as in GNU-R.
        return dataLibrary.getIntAt(vector.getData(), (int) index);
    }
}
