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annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/runtime/SLContext.java @ 22502:d2b4fe945c23

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Add missing Truffle boundary
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 16 Dec 2015 15:32:23 -0800
parents 46a6d3eb790c
children ae2c10d36bed
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
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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
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
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8 * person obtaining a copy of this software, associated documentation and/or
c07e64ecb528 Update SL copyright headers to use UPL
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parents: 21951
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9 * data (collectively the "Software"), free of charge and under any and all
c07e64ecb528 Update SL copyright headers to use UPL
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parents: 21951
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10 * copyright rights in the Software, and any and all patent rights owned or
c07e64ecb528 Update SL copyright headers to use UPL
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parents: 21951
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11 * freely licensable by each licensor hereunder covering either (i) the
c07e64ecb528 Update SL copyright headers to use UPL
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12 * unmodified Software as contributed to or provided by such licensor, or (ii)
c07e64ecb528 Update SL copyright headers to use UPL
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parents: 21951
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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
c07e64ecb528 Update SL copyright headers to use UPL
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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,
c07e64ecb528 Update SL copyright headers to use UPL
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23 * use, sell, offer for sale, import, export, have made, and have sold the
c07e64ecb528 Update SL copyright headers to use UPL
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parents: 21951
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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
c07e64ecb528 Update SL copyright headers to use UPL
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30 * minimum a reference to the UPL must be included in all copies or substantial
c07e64ecb528 Update SL copyright headers to use UPL
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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
c07e64ecb528 Update SL copyright headers to use UPL
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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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Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
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37 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
c07e64ecb528 Update SL copyright headers to use UPL
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38 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
c07e64ecb528 Update SL copyright headers to use UPL
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parents: 21951
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39 * SOFTWARE.
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Christian Humer <christian.humer@gmail.com>
parents:
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40 */
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41 package com.oracle.truffle.sl.runtime;
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42
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43 import com.oracle.truffle.api.CallTarget;
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44 import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
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45 import com.oracle.truffle.api.ExecutionContext;
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46 import com.oracle.truffle.api.TruffleLanguage;
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47 import com.oracle.truffle.api.dsl.NodeFactory;
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48 import com.oracle.truffle.api.frame.FrameDescriptor;
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49 import com.oracle.truffle.api.interop.TruffleObject;
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50 import com.oracle.truffle.api.nodes.NodeInfo;
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51 import com.oracle.truffle.api.object.DynamicObject;
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52 import com.oracle.truffle.api.object.Layout;
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53 import com.oracle.truffle.api.object.Shape;
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54 import com.oracle.truffle.api.source.Source;
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55 import com.oracle.truffle.api.source.SourceSection;
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56 import com.oracle.truffle.sl.SLLanguage;
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57 import com.oracle.truffle.sl.builtins.SLAssertFalseBuiltinFactory;
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58 import com.oracle.truffle.sl.builtins.SLAssertTrueBuiltinFactory;
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59 import com.oracle.truffle.sl.builtins.SLBuiltinNode;
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60 import com.oracle.truffle.sl.builtins.SLDefineFunctionBuiltinFactory;
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61 import com.oracle.truffle.sl.builtins.SLEvalBuiltinFactory;
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62 import com.oracle.truffle.sl.builtins.SLHelloEqualsWorldBuiltinFactory;
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63 import com.oracle.truffle.sl.builtins.SLImportBuiltinFactory;
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64 import com.oracle.truffle.sl.builtins.SLNanoTimeBuiltinFactory;
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65 import com.oracle.truffle.sl.builtins.SLNewObjectBuiltinFactory;
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66 import com.oracle.truffle.sl.builtins.SLPrintlnBuiltin;
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67 import com.oracle.truffle.sl.builtins.SLPrintlnBuiltinFactory;
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68 import com.oracle.truffle.sl.builtins.SLReadlnBuiltin;
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69 import com.oracle.truffle.sl.builtins.SLReadlnBuiltinFactory;
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70 import com.oracle.truffle.sl.builtins.SLStackTraceBuiltinFactory;
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71 import com.oracle.truffle.sl.nodes.SLExpressionNode;
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72 import com.oracle.truffle.sl.nodes.SLRootNode;
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73 import com.oracle.truffle.sl.nodes.local.SLReadArgumentNode;
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74 import com.oracle.truffle.sl.parser.Parser;
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75 import com.oracle.truffle.sl.parser.SLNodeFactory;
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parents: 22157
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76
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77 import java.io.BufferedReader;
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78 import java.io.IOException;
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79 import java.io.PrintWriter;
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80 import java.math.BigInteger;
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parents:
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81
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82 /**
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83 * The run-time state of SL during execution. One context is instantiated before any source code is
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84 * parsed, and this context is passed around to all methods that need access to it. For example, the
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85 * context is used during {@link SLNodeFactory parsing} and by {@link SLBuiltinNode#getContext()
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86 * builtin functions}.
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87 * <p>
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88 * It would be an error to have two different context instances during the execution of one script.
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89 * However, if two separate scripts run in one Java VM at the same time, they have a different
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90 * context. Therefore, the context is not a singleton.
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91 */
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92 public final class SLContext extends ExecutionContext {
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93 private static final Layout LAYOUT = Layout.createLayout();
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94
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Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 21997
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95 private final SLLanguage language;
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96 private final BufferedReader input;
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97 private final PrintWriter output;
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98 private final SLFunctionRegistry functionRegistry;
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99 private final Shape emptyShape;
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100 private final TruffleLanguage.Env env;
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101
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102 public SLContext(SLLanguage language, TruffleLanguage.Env env, BufferedReader input, PrintWriter output) {
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103 this(language, env, input, output, true);
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104 }
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105
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106 public SLContext(SLLanguage language) {
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107 this(language, null, null, null, false);
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108 }
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109
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110 private SLContext(SLLanguage language, TruffleLanguage.Env env, BufferedReader input, PrintWriter output, boolean installBuiltins) {
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Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 21997
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111 this.language = language;
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112 this.input = input;
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113 this.output = output;
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114 this.env = env;
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parents:
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115 this.functionRegistry = new SLFunctionRegistry();
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parents: 22003
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116 installBuiltins(installBuiltins);
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117
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118 this.emptyShape = LAYOUT.createShape(new SLObjectType());
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119 }
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120
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121 /**
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122 * Returns the default input, i.e., the source for the {@link SLReadlnBuiltin}. To allow unit
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123 * testing, we do not use {@link System#in} directly.
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124 */
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125 public BufferedReader getInput() {
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126 return input;
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127 }
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128
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129 /**
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130 * The default default, i.e., the output for the {@link SLPrintlnBuiltin}. To allow unit
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131 * testing, we do not use {@link System#out} directly.
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132 */
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133 public PrintWriter getOutput() {
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134 return output;
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135 }
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136
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137 /**
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138 * Returns the registry of all functions that are currently defined.
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139 */
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140 public SLFunctionRegistry getFunctionRegistry() {
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141 return functionRegistry;
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142 }
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143
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144 public SLLanguage getLanguage() {
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145 return language;
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146 }
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147
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148 /**
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149 * Adds all builtin functions to the {@link SLFunctionRegistry}. This method lists all
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150 * {@link SLBuiltinNode builtin implementation classes}.
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151 */
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152 private void installBuiltins(boolean registerRootNodes) {
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153 installBuiltin(SLReadlnBuiltinFactory.getInstance(), registerRootNodes);
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154 installBuiltin(SLPrintlnBuiltinFactory.getInstance(), registerRootNodes);
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155 installBuiltin(SLNanoTimeBuiltinFactory.getInstance(), registerRootNodes);
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156 installBuiltin(SLDefineFunctionBuiltinFactory.getInstance(), registerRootNodes);
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157 installBuiltin(SLStackTraceBuiltinFactory.getInstance(), registerRootNodes);
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158 installBuiltin(SLHelloEqualsWorldBuiltinFactory.getInstance(), registerRootNodes);
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159 installBuiltin(SLAssertTrueBuiltinFactory.getInstance(), registerRootNodes);
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160 installBuiltin(SLAssertFalseBuiltinFactory.getInstance(), registerRootNodes);
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161 installBuiltin(SLNewObjectBuiltinFactory.getInstance(), registerRootNodes);
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162 installBuiltin(SLEvalBuiltinFactory.getInstance(), registerRootNodes);
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163 installBuiltin(SLImportBuiltinFactory.getInstance(), registerRootNodes);
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164 }
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165
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166 public void installBuiltin(NodeFactory<? extends SLBuiltinNode> factory, boolean registerRootNodes) {
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167 /*
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168 * The builtin node factory is a class that is automatically generated by the Truffle DSL.
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169 * The signature returned by the factory reflects the signature of the @Specialization
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170 * methods in the builtin classes.
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171 */
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172 int argumentCount = factory.getExecutionSignature().size();
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173 SLExpressionNode[] argumentNodes = new SLExpressionNode[argumentCount];
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174 /*
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175 * Builtin functions are like normal functions, i.e., the arguments are passed in as an
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176 * Object[] array encapsulated in SLArguments. A SLReadArgumentNode extracts a parameter
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177 * from this array.
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178 */
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179 for (int i = 0; i < argumentCount; i++) {
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180 argumentNodes[i] = new SLReadArgumentNode(null, i);
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181 }
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182 /* Instantiate the builtin node. This node performs the actual functionality. */
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183 SLBuiltinNode builtinBodyNode = factory.createNode(argumentNodes, this);
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184 /* The name of the builtin function is specified via an annotation on the node class. */
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185 String name = lookupNodeInfo(builtinBodyNode.getClass()).shortName();
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186
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187 final SourceSection srcSection = SourceSection.createUnavailable(SLLanguage.builtinKind, name);
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188 /* Wrap the builtin in a RootNode. Truffle requires all AST to start with a RootNode. */
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189 SLRootNode rootNode = new SLRootNode(this, new FrameDescriptor(), builtinBodyNode, srcSection, name);
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190
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191 if (registerRootNodes) {
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192 /* Register the builtin function in our function registry. */
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193 getFunctionRegistry().register(name, rootNode);
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194 } else {
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195 // make sure the function is known
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196 getFunctionRegistry().lookup(name);
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197 }
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198 }
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199
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200 public static NodeInfo lookupNodeInfo(Class<?> clazz) {
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201 if (clazz == null) {
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202 return null;
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203 }
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204 NodeInfo info = clazz.getAnnotation(NodeInfo.class);
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diff changeset
205 if (info != null) {
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diff changeset
206 return info;
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diff changeset
207 } else {
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diff changeset
208 return lookupNodeInfo(clazz.getSuperclass());
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209 }
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210 }
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diff changeset
211
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diff changeset
212 /**
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213 * Evaluate a source, causing any definitions to be registered (but not executed).
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diff changeset
214 *
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215 * @param source The {@link Source} to parse.
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diff changeset
216 */
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diff changeset
217 public void evalSource(Source source) {
16880
7661cc464239 Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map
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diff changeset
218 Parser.parseSL(this, source);
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219 }
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diff changeset
220
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diff changeset
221 public DynamicObject createObject() {
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diff changeset
222 return LAYOUT.newInstance(emptyShape);
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223 }
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diff changeset
224
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diff changeset
225 public static boolean isSLObject(TruffleObject value) {
22416
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diff changeset
226 return value instanceof DynamicObject && isSLObject((DynamicObject) value);
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diff changeset
227 }
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diff changeset
228
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diff changeset
229 public static boolean isSLObject(DynamicObject value) {
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diff changeset
230 return value.getShape().getObjectType() instanceof SLObjectType;
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231 }
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diff changeset
232
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233 public static DynamicObject castSLObject(Object value) {
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234 return LAYOUT.getType().cast(value);
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235 }
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236
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237 public static Object fromForeignValue(Object a) {
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238 if (a instanceof Long || a instanceof BigInteger || a instanceof String) {
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239 return a;
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240 } else if (a instanceof Number) {
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241 return ((Number) a).longValue();
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242 } else if (a instanceof TruffleObject) {
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243 return a;
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244 } else if (a instanceof SLContext) {
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245 return a;
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246 }
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247 throw new IllegalStateException(a + " is not a Truffle value");
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248 }
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249
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250 public CallTarget parse(Source source) throws IOException {
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251 return env.parse(source);
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252 }
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253
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254 /**
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255 * Goes through the other registered languages to find an exported global symbol of the
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256 * specified name. The expected return type is either <code>TruffleObject</code>, or one of
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257 * wrappers of Java primitive types ({@link Integer}, {@link Double}).
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258 *
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259 * @param name the name of the symbol to search for
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260 * @return object representing the symbol or <code>null</code>
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261 */
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262 @TruffleBoundary
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263 public Object importSymbol(String name) {
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264 Object object = env.importSymbol(name);
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265 Object slValue = fromForeignValue(object);
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266 return slValue;
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267 }
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Christian Humer <christian.humer@gmail.com>
parents:
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268 }