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 * Copyright (c) 2016, Oracle and/or its affiliates.
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 * permitted provided that the following conditions are met:
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 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
 * with the distribution.
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 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
 * permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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package com.oracle.truffle.llvm.nodes.intrinsics.interop;

import com.oracle.truffle.api.CompilerDirectives;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.NodeChild;
import com.oracle.truffle.api.dsl.NodeChildren;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.interop.TruffleObject;
import com.oracle.truffle.llvm.nodes.intrinsics.llvm.LLVMIntrinsic;
import com.oracle.truffle.llvm.runtime.LLVMAddress;
import com.oracle.truffle.llvm.runtime.LLVMContext;
import com.oracle.truffle.llvm.runtime.LLVMLogger;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
import com.oracle.truffle.llvm.runtime.options.LLVMOptions;

@NodeChildren({@NodeChild(type = LLVMExpressionNode.class)})
public abstract class LLVMTruffleReleaseHandle extends LLVMIntrinsic {

    private static final boolean TRACE = !LLVMLogger.TARGET_NONE.equals(LLVMOptions.DEBUG.debug());

    @Specialization
    public Object executeIntrinsic(LLVMAddress handle, @Cached("getContext()") LLVMContext context) {
        if (TRACE) {
            trace(handle);
        }
        context.releaseHandle(handle);
        return null;

    }

    @Specialization(guards = "!isLLVMAddress(handle)")
    public TruffleObject executeFail(Object handle) {
        CompilerDirectives.transferToInterpreter();
        throw new UnsupportedOperationException(handle + " not supported.");
    }

    @TruffleBoundary
    private static void trace(LLVMAddress address) {
        LLVMLogger.print(LLVMOptions.DEBUG.debug()).accept(
                        String.format("[sulong] Native handle (%s) released.", String.valueOf(address)));
    }

}