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annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/expression/SLParenExpressionNode.java @ 21997:c07e64ecb528

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Update SL copyright headers to use UPL
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Thu, 16 Jul 2015 15:50:46 +0200
parents 9c8c0937da41
children 503529c65456
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0fc43b066eee SL/SourceAttribution: correct some omissions, and in particular add new node SLParenExpressionNode to represent a parenthesized expression; this is semantically neutral of course, but needed to account correctly for the text of such an expression (as opposed to its contents).
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parents:
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1 /*
21997
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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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parents:
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40 */
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41 package com.oracle.truffle.sl.nodes.expression;
0fc43b066eee SL/SourceAttribution: correct some omissions, and in particular add new node SLParenExpressionNode to represent a parenthesized expression; this is semantically neutral of course, but needed to account correctly for the text of such an expression (as opposed to its contents).
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42
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43 import com.oracle.truffle.api.frame.*;
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44 import com.oracle.truffle.api.nodes.*;
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45 import com.oracle.truffle.api.source.*;
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46 import com.oracle.truffle.sl.nodes.*;
0fc43b066eee SL/SourceAttribution: correct some omissions, and in particular add new node SLParenExpressionNode to represent a parenthesized expression; this is semantically neutral of course, but needed to account correctly for the text of such an expression (as opposed to its contents).
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parents:
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47
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48 /**
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49 * A {@link SLExpressionNode} that represents a parenthesized expression; it simply returns the
0fc43b066eee SL/SourceAttribution: correct some omissions, and in particular add new node SLParenExpressionNode to represent a parenthesized expression; this is semantically neutral of course, but needed to account correctly for the text of such an expression (as opposed to its contents).
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50 * value of the enclosed (child) expression. It is represented separately in the AST for the purpose
0fc43b066eee SL/SourceAttribution: correct some omissions, and in particular add new node SLParenExpressionNode to represent a parenthesized expression; this is semantically neutral of course, but needed to account correctly for the text of such an expression (as opposed to its contents).
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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51 * of correct source attribution; this preserves the lexical relationship between the two
0fc43b066eee SL/SourceAttribution: correct some omissions, and in particular add new node SLParenExpressionNode to represent a parenthesized expression; this is semantically neutral of course, but needed to account correctly for the text of such an expression (as opposed to its contents).
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52 * parentheses and allows a tool to describe the expression as distinct from its contents.
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parents:
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53 */
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54 @NodeInfo(description = "A parenthesized expression")
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55 public class SLParenExpressionNode extends SLExpressionNode {
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56
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57 private final SLExpressionNode expression;
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58
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59 public SLParenExpressionNode(SourceSection src, SLExpressionNode expression) {
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60 super(src);
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61 this.expression = insert(expression);
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62 }
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63
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64 @Override
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65 public Object executeGeneric(VirtualFrame frame) {
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66 return expression.executeGeneric(frame);
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67 }
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68
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69 @Override
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70 public long executeLong(VirtualFrame frame) throws UnexpectedResultException {
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71 return expression.executeLong(frame);
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72 }
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73
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74 @Override
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75 public boolean executeBoolean(VirtualFrame frame) throws UnexpectedResultException {
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76 return expression.executeBoolean(frame);
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77 }
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78
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79 }