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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CompilerAsserts.java @ 15159:2ed720ce9273

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Truffle: Change CallTarget from an abstract class to an interface. Allow varargs.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Tue, 15 Apr 2014 13:26:26 +0200
parents 494b818b527c
children da9b9b625818
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1 /*
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2 * Copyright (c) 2013, 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;
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26
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27 /**
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28 * Assertions about the code produced by the Truffle compiler. All operations have no effect when
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29 * either executed in the interpreter or in the compiled code. The assertions are checked during
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30 * code generation and the Truffle compiler produces for failing assertions a stack trace that
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31 * identifies the code position of the assertion in the context of the current compilation.
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32 *
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33 */
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34 public class CompilerAsserts {
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35
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36 /**
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37 * Assertion that this code position should never be reached during compilation. It can be used
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38 * for exceptional code paths or rare code paths that should never be included in a compilation
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39 * unit. See {@link CompilerDirectives#transferToInterpreter()} for the corresponding compiler
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40 * directive.
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41 */
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42 public static void neverPartOfCompilation() {
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43 }
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44
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45 /**
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46 * Assertion that the corresponding value is reduced to a constant during compilation.
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47 *
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48 * @param value the value that must be constant during compilation
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49 * @return the value given as parameter
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50 */
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51 public static boolean compilationConstant(boolean value) {
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52 return value;
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53 }
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54
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55 /**
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56 * Assertion that the corresponding value is reduced to a constant during compilation.
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57 *
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58 * @param value the value that must be constant during compilation
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59 * @return the value given as parameter
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60 */
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61 public static byte compilationConstant(byte value) {
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62 return value;
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63 }
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64
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65 /**
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66 * Assertion that the corresponding value is reduced to a constant during compilation.
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67 *
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68 * @param value the value that must be constant during compilation
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69 * @return the value given as parameter
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70 */
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71 public static char compilationConstant(char value) {
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72 return value;
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73 }
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74
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75 /**
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76 * Assertion that the corresponding value is reduced to a constant during compilation.
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77 *
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78 * @param value the value that must be constant during compilation
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79 * @return the value given as parameter
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80 */
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81 public static short compilationConstant(short value) {
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82 return value;
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83 }
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84
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85 /**
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86 * Assertion that the corresponding value is reduced to a constant during compilation.
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87 *
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88 * @param value the value that must be constant during compilation
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89 * @return the value given as parameter
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90 */
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91 public static int compilationConstant(int value) {
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92 return value;
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93 }
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94
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95 /**
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96 * Assertion that the corresponding value is reduced to a constant during compilation.
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97 *
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98 * @param value the value that must be constant during compilation
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99 * @return the value given as parameter
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100 */
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101 public static long compilationConstant(long value) {
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102 return value;
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103 }
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104
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105 /**
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106 * Assertion that the corresponding value is reduced to a constant during compilation.
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107 *
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108 * @param value the value that must be constant during compilation
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109 * @return the value given as parameter
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110 */
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111 public static float compilationConstant(float value) {
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112 return value;
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113 }
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114
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115 /**
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116 * Assertion that the corresponding value is reduced to a constant during compilation.
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117 *
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118 * @param value the value that must be constant during compilation
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119 * @return the value given as parameter
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120 */
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121 public static double compilationConstant(double value) {
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122 return value;
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123 }
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124
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125 /**
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126 * Assertion that the corresponding value is reduced to a constant during compilation.
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127 *
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128 * @param value the value that must be constant during compilation
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129 * @return the value given as parameter
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130 */
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131 public static Object compilationConstant(Object value) {
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132 return value;
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133 }
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134 }