Mercurial > hg > truffle
annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/controlflow/SLBlockNode.java @ 22157:dc83cc1f94f2
Using fully qualified imports
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Wed, 16 Sep 2015 11:33:22 +0200 |
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1 /* |
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * The Universal Permissive License (UPL), Version 1.0 |
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6 * |
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7 * Subject to the condition set forth below, permission is hereby granted to any |
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8 * person obtaining a copy of this software, associated documentation and/or |
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9 * data (collectively the "Software"), free of charge and under any and all |
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10 * copyright rights in the Software, and any and all patent rights owned or |
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11 * freely licensable by each licensor hereunder covering either (i) the |
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12 * unmodified Software as contributed to or provided by such licensor, or (ii) |
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13 * the Larger Works (as defined below), to deal in both |
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14 * |
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15 * (a) the Software, and |
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16 * |
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17 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if |
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18 * one is included with the Software each a "Larger Work" to which the Software |
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19 * is contributed by such licensors), |
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20 * |
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21 * without restriction, including without limitation the rights to copy, create |
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22 * derivative works of, display, perform, and distribute the Software and make, |
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23 * use, sell, offer for sale, import, export, have made, and have sold the |
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24 * Software and the Larger Work(s), and to sublicense the foregoing rights on |
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25 * either these or other terms. |
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26 * |
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27 * This license is subject to the following condition: |
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28 * |
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29 * The above copyright notice and either this complete permission notice or at a |
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30 * minimum a reference to the UPL must be included in all copies or substantial |
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31 * portions of the Software. |
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32 * |
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33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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34 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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35 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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36 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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37 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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38 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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39 * SOFTWARE. |
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40 */ |
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41 package com.oracle.truffle.sl.nodes.controlflow; |
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42 |
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43 import com.oracle.truffle.api.CompilerAsserts; |
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44 import com.oracle.truffle.api.frame.VirtualFrame; |
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45 import com.oracle.truffle.api.nodes.ExplodeLoop; |
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46 import com.oracle.truffle.api.nodes.NodeInfo; |
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47 import com.oracle.truffle.api.source.SourceSection; |
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48 import com.oracle.truffle.sl.nodes.SLStatementNode; |
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49 |
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50 /** |
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51 * A statement node that just executes a list of other statements. |
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52 */ |
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53 @NodeInfo(shortName = "block", description = "The node implementing a source code block") |
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54 public final class SLBlockNode extends SLStatementNode { |
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55 |
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56 /** |
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57 * The array of child nodes. The annotation {@link com.oracle.truffle.api.nodes.Node.Children |
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58 * Children} informs Truffle that the field contains multiple children. It is a Truffle |
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59 * requirement that the field is {@code final} and an array of nodes. |
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60 */ |
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61 @Children private final SLStatementNode[] bodyNodes; |
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62 |
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63 public SLBlockNode(SourceSection src, SLStatementNode... bodyNodes) { |
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64 super(src); |
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65 this.bodyNodes = bodyNodes; |
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66 } |
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67 |
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68 /** |
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69 * Execute all child statements. The annotation {@link ExplodeLoop} triggers full unrolling of |
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70 * the loop during compilation. This allows the {@link SLStatementNode#executeVoid} method of |
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71 * all children to be inlined. |
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72 */ |
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73 @Override |
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74 @ExplodeLoop |
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75 public void executeVoid(VirtualFrame frame) { |
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76 /* |
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77 * This assertion illustrates that the array length is really a constant during compilation. |
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78 */ |
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79 CompilerAsserts.compilationConstant(bodyNodes.length); |
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80 |
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81 for (SLStatementNode statement : bodyNodes) { |
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82 statement.executeVoid(frame); |
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83 } |
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84 } |
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85 } |