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1 /*
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2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.nodes.cast;
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11
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12 import com.oracle.truffle.api.*;
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13 import com.oracle.truffle.api.dsl.*;
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14 import com.oracle.truffle.api.frame.*;
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15 import com.oracle.truffle.api.nodes.*;
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16 import com.oracle.truffle.ruby.nodes.*;
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17 import com.oracle.truffle.ruby.runtime.*;
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18 import com.oracle.truffle.ruby.runtime.core.array.*;
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19
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20 /**
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21 * Splat as used to cast a value to an array if it isn't already, as in {@code *value}.
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22 */
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23 @NodeInfo(shortName = "cast-splat")
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24 @NodeChild("child")
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25 public abstract class SplatCastNode extends RubyNode {
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26
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27 public SplatCastNode(RubyContext context, SourceSection sourceSection) {
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28 super(context, sourceSection);
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29 }
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30
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31 public SplatCastNode(SplatCastNode prev) {
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32 super(prev);
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33 }
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34
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35 protected abstract RubyNode getChild();
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36
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37 @Specialization
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38 public RubyArray doArray(RubyArray array) {
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39 return array;
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40 }
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41
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42 @Specialization
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43 public RubyArray doObject(Object object) {
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44 if (object instanceof RubyArray) {
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45 return (RubyArray) object;
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46 } else {
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47 return RubyArray.specializedFromObject(getContext().getCoreLibrary().getArrayClass(), object);
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48 }
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49 }
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50
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51 @Override
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52 public void executeVoid(VirtualFrame frame) {
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53 getChild().executeVoid(frame);
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54 }
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55
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56 }
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