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[Truffle] Chaos node to randomise object representations.
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truffle/src/main/java/org/jruby/truffle/tools/ChaosNode.java
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/* | ||
* Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved. This | ||
* code is released under a tri EPL/GPL/LGPL license. You can use it, | ||
* redistribute it and/or modify it under the terms of the: | ||
* | ||
* Eclipse Public License version 1.0 | ||
* GNU General Public License version 2 | ||
* GNU Lesser General Public License version 2.1 | ||
*/ | ||
package org.jruby.truffle.tools; | ||
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import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary; | ||
import com.oracle.truffle.api.dsl.Fallback; | ||
import com.oracle.truffle.api.dsl.NodeChild; | ||
import com.oracle.truffle.api.dsl.Specialization; | ||
import org.jruby.truffle.language.RubyNode; | ||
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import java.util.Random; | ||
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@NodeChild | ||
public abstract class ChaosNode extends RubyNode { | ||
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private static final Random random = new Random(0); | ||
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@TruffleBoundary | ||
@Specialization | ||
public Object chaos(int value) { | ||
if (random.nextBoolean()) { | ||
return (long) value; | ||
} else { | ||
return value; | ||
} | ||
} | ||
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@Fallback | ||
public Object chaos(Object value) { | ||
return value; | ||
} | ||
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} |