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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/source/SourceLineLocation.java @ 13564:35f637594acc

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Truffle: refinements in the management of source information: a new marker interface for empty SourceSections and fix a bug that kept modified source files from being reloaded.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Tue, 07 Jan 2014 18:21:20 -0800
parents 69d2e4baa215
children 288c23143d47
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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69d2e4baa215 Truffle: new infrastructure related to instrumentation, and in particular debugging: support for managing Source objects; framework for generalized "instrumentation proxy nodes" (to be inserted into ASTs with no runtime cost when inactive), and "probes" (which can be attached to proxy nodes to receive event notification); a rudimentary interface and abstract implementation for a "debug manager" (mostly a placeholder at this point); and the beginning of a language-agnostic ExecutionContext interface.
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1 /*
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2 * Copyright (c) 2013, 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 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
69d2e4baa215 Truffle: new infrastructure related to instrumentation, and in particular debugging: support for managing Source objects; framework for generalized "instrumentation proxy nodes" (to be inserted into ASTs with no runtime cost when inactive), and "probes" (which can be attached to proxy nodes to receive event notification); a rudimentary interface and abstract implementation for a "debug manager" (mostly a placeholder at this point); and the beginning of a language-agnostic ExecutionContext interface.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
69d2e4baa215 Truffle: new infrastructure related to instrumentation, and in particular debugging: support for managing Source objects; framework for generalized "instrumentation proxy nodes" (to be inserted into ASTs with no runtime cost when inactive), and "probes" (which can be attached to proxy nodes to receive event notification); a rudimentary interface and abstract implementation for a "debug manager" (mostly a placeholder at this point); and the beginning of a language-agnostic ExecutionContext interface.
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.api.source;
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26
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27 import com.oracle.truffle.api.*;
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28
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29 /**
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30 * A specification for a location in guest language source, expressed as a line number in a specific
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31 * instance of {@link Source}, suitable for hash table keys with equality defined in terms of
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32 * content.
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33 */
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34 public class SourceLineLocation implements Comparable {
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35
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36 private final Source source;
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37 private final int line;
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38
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39 public SourceLineLocation(Source source, int line) {
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40 assert source != null;
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41 this.source = source;
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42 this.line = line;
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43 }
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44
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45 public SourceLineLocation(SourceSection sourceSection) {
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46 this(sourceSection.getSource(), sourceSection.getStartLine());
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47 }
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48
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49 public Source getSource() {
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50 return source;
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51 }
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52
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53 public int getLine() {
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54 return line;
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55 }
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56
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57 @Override
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58 public String toString() {
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59 return "SourceLine [" + source.getName() + ", " + line + "]";
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60 }
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61
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62 @Override
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63 public int hashCode() {
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64 final int prime = 31;
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65 int result = 1;
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66 result = prime * result + line;
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67 result = prime * result + source.hashCode();
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68 return result;
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69 }
69d2e4baa215 Truffle: new infrastructure related to instrumentation, and in particular debugging: support for managing Source objects; framework for generalized "instrumentation proxy nodes" (to be inserted into ASTs with no runtime cost when inactive), and "probes" (which can be attached to proxy nodes to receive event notification); a rudimentary interface and abstract implementation for a "debug manager" (mostly a placeholder at this point); and the beginning of a language-agnostic ExecutionContext interface.
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70
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71 @Override
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72 public boolean equals(Object obj) {
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73 if (this == obj) {
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74 return true;
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75 }
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76 if (obj == null) {
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77 return false;
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78 }
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79 if (!(obj instanceof SourceLineLocation)) {
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80 return false;
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81 }
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82 SourceLineLocation other = (SourceLineLocation) obj;
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83 if (line != other.line) {
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84 return false;
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85 }
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86 return source.equals(other.source);
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87 }
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88
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89 @Override
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90 public int compareTo(Object o) {
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91 final SourceLineLocation other = (SourceLineLocation) o;
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92 final int nameOrder = source.getName().compareTo(other.source.getName());
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93 if (nameOrder != 0) {
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94 return nameOrder;
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95 }
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96 return Integer.compare(line, other.line);
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97 }
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98
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99 }