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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/source/SourceSection.java @ 20131:4b12d5355811
Truffle: do not use iterators for visitors.
author | Christian Humer <christian.humer@gmail.com> |
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date | Thu, 02 Apr 2015 01:27:27 +0200 |
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1 /* |
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2 * Copyright (c) 2013, 2015, 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. |
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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 |
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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 /** |
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28 * Description of contiguous section of text within a {@link Source} of program code; supports |
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29 * multiple modes of access to the text and its location. A special {@linkplain NullSourceSection |
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30 * null subtype} should be used for code that is not available from source, e.g language builtins. |
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31 * |
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32 * @see Source#createSection(String, int, int, int, int) |
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33 * @see Source#createSection(String, int, int, int) |
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34 * @see Source#createSection(String, int, int) |
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35 * @see Source#createSection(String, int) |
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36 * @see NullSourceSection |
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37 */ |
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38 public interface SourceSection { |
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39 |
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40 // TODO support alternate text representations/encodings |
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41 |
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42 /** |
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43 * Representation of the source program that contains this section. |
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44 * |
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45 * @return the source object |
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46 */ |
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47 Source getSource(); |
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48 |
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49 /** |
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50 * Returns 1-based line number of the first character in this section (inclusive). |
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51 * |
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52 * @return the starting line number |
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53 */ |
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54 int getStartLine(); |
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55 |
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56 /** |
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57 * Gets a representation of the first line of the section, suitable for a hash key. |
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58 */ |
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59 LineLocation getLineLocation(); |
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60 |
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61 /** |
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62 * Returns the 1-based column number of the first character in this section (inclusive). |
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63 * |
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64 * @return the starting column number |
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65 */ |
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66 int getStartColumn(); |
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67 |
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68 /** |
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69 * Returns 1-based line number of the last character in this section (inclusive). |
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70 * |
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71 * @return the starting line number |
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72 */ |
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73 int getEndLine(); |
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74 |
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75 /** |
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76 * Returns the 1-based column number of the last character in this section (inclusive). |
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77 * |
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78 * @return the starting column number |
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79 */ |
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80 int getEndColumn(); |
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81 |
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82 /** |
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83 * Returns the 0-based index of the first character in this section. |
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84 * |
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85 * @return the starting character index |
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86 */ |
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87 int getCharIndex(); |
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88 |
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89 /** |
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90 * Returns the length of this section in characters. |
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91 * |
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92 * @return the number of characters in the section |
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93 */ |
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94 int getCharLength(); |
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95 |
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96 /** |
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97 * Returns the index of the text position immediately following the last character in the |
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98 * section. |
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99 * |
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100 * @return the end position of the section |
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101 */ |
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102 int getCharEndIndex(); |
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103 |
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104 /** |
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105 * Returns terse text describing this source section, typically used for printing the section. |
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106 * |
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107 * @return the identifier of the section |
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108 */ |
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109 String getIdentifier(); |
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110 |
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111 /** |
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112 * Returns text described by this section. |
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113 * |
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114 * @return the code as a String object |
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115 */ |
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116 String getCode(); |
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117 |
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118 /** |
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119 * Returns a short description of the source section, using just the file name, rather than its |
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120 * full path. |
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121 * |
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122 * @return a short description of the source section |
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123 */ |
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124 String getShortDescription(); |
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125 |
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126 } |