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[Truffle] Added a new internal method for taking ownership of an arra…
…y store from another array. This is intended to be a faster version of Array#replace when we know that the source array won't be used anywhere else.
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truffle/src/main/java/org/jruby/truffle/core/array/TruffleArrayNodes.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.core.array; | ||
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import com.oracle.truffle.api.dsl.Specialization; | ||
import com.oracle.truffle.api.object.DynamicObject; | ||
import org.jruby.truffle.builtins.CoreClass; | ||
import org.jruby.truffle.builtins.CoreMethod; | ||
import org.jruby.truffle.builtins.CoreMethodArrayArgumentsNode; | ||
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import static org.jruby.truffle.core.array.ArrayHelpers.getSize; | ||
import static org.jruby.truffle.core.array.ArrayHelpers.getStore; | ||
import static org.jruby.truffle.core.array.ArrayHelpers.setStoreAndSize; | ||
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@CoreClass("Truffle::Array") | ||
public class TruffleArrayNodes { | ||
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@CoreMethod(names = "take_ownership_of_store", onSingleton = true, required = 2) | ||
public abstract static class TakeOwnershipOfStoreNode extends CoreMethodArrayArgumentsNode { | ||
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@Specialization(guards = "array == other") | ||
public DynamicObject takeOwnershipOfStoreNoOp(DynamicObject array, DynamicObject other) { | ||
return array; | ||
} | ||
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@Specialization(guards = { "array != other", "isRubyArray(other)" }) | ||
public DynamicObject takeOwnershipOfStore(DynamicObject array, DynamicObject other) { | ||
final int size = getSize(other); | ||
final Object store = getStore(other); | ||
setStoreAndSize(array, store, size); | ||
setStoreAndSize(other, null, 0); | ||
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return array; | ||
} | ||
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} | ||
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} |
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