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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.core;
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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.frame.*;
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14 import com.oracle.truffle.api.nodes.*;
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15 import com.oracle.truffle.ruby.nodes.*;
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16 import com.oracle.truffle.ruby.runtime.*;
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17 import com.oracle.truffle.ruby.runtime.core.array.*;
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18
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19 /**
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20 * Concatenate arrays.
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21 */
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22 @NodeInfo(shortName = "array-concat")
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23 public final class ArrayConcatNode extends RubyNode {
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24
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25 @Children protected final RubyNode[] children;
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26
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27 public ArrayConcatNode(RubyContext context, SourceSection sourceSection, RubyNode[] children) {
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28 super(context, sourceSection);
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29 assert children.length > 1;
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30 this.children = adoptChildren(children);
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31 }
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32
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33 @ExplodeLoop
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34 @Override
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35 public Object execute(VirtualFrame frame) {
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36 final RubyArray array = new RubyArray(getContext().getCoreLibrary().getArrayClass());
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37
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38 for (int n = 0; n < children.length; n++) {
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39 final Object childObject = children[n].execute(frame);
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40
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41 if (childObject instanceof RubyArray) {
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42 // setRangeArray has special cases for setting a zero-length range at the end
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43 final int end = array.size();
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44 array.setRangeArrayExclusive(end, end, (RubyArray) childObject);
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45 } else {
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46 array.push(childObject);
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47 }
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48 }
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49
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50 return array;
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51 }
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52
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53 @ExplodeLoop
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54 @Override
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55 public void executeVoid(VirtualFrame frame) {
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56 for (int n = 0; n < children.length; n++) {
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57 children[n].executeVoid(frame);
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58 }
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59 }
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60
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61 }
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