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annotate truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/vm/ImplicitExplicitExportTest.java @ 22070:a7ca9e9a1d51

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Removing VirtualFrame parameter. Documenting.
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Thu, 06 Aug 2015 18:08:27 +0200
parents fec8f8a61f6c
children ff531952a91c 643d53cb3147
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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f0fe6f0cbccc Chris pointed out the copyright should reflect the year of file's creation.
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2 * Copyright (c) 2015, 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.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.api.test.vm;
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24
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25 import static org.junit.Assert.*;
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27 import java.io.*;
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28 import java.util.*;
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30 import org.junit.*;
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32 import com.oracle.truffle.api.*;
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33 import com.oracle.truffle.api.TruffleLanguage.Env;
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34 import com.oracle.truffle.api.debug.*;
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35 import com.oracle.truffle.api.instrument.*;
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36 import com.oracle.truffle.api.nodes.Node;
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37 import com.oracle.truffle.api.nodes.RootNode;
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38 import com.oracle.truffle.api.source.*;
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39 import com.oracle.truffle.api.vm.*;
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40
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41 public class ImplicitExplicitExportTest {
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42 private TruffleVM vm;
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43
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44 @Before
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45 public void initializeVM() {
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46 vm = TruffleVM.newVM().build();
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47 assertTrue("Found " + L1 + " language", vm.getLanguages().containsKey(L1));
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48 assertTrue("Found " + L2 + " language", vm.getLanguages().containsKey(L2));
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49 assertTrue("Found " + L3 + " language", vm.getLanguages().containsKey(L3));
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50 }
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51
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52 @Test
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53 public void explicitExportFound() throws IOException {
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54 // @formatter:off
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55 vm.eval(L1,
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56 "explicit.ahoj=42"
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57 );
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58 Object ret = vm.eval(L3,
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59 "return=ahoj"
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60 );
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61 // @formatter:on
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62 assertEquals("42", ret);
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63 }
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64
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65 @Test
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66 public void implicitExportFound() throws IOException {
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67 // @formatter:off
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68 vm.eval(L1,
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69 "implicit.ahoj=42"
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70 );
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71 Object ret = vm.eval(L3,
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72 "return=ahoj"
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73 );
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74 // @formatter:on
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75 assertEquals("42", ret);
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76 }
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77
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78 @Test
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79 public void explicitExportPreferred2() throws IOException {
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80 // @formatter:off
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81 vm.eval(L1,
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82 "implicit.ahoj=42"
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83 );
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84 vm.eval(L2,
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85 "explicit.ahoj=43"
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86 );
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87 Object ret = vm.eval(L3,
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88 "return=ahoj"
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89 );
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90 // @formatter:on
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91 assertEquals("Explicit import from L2 is used", "43", ret);
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92 assertEquals("Global symbol is also 43", "43", vm.findGlobalSymbol("ahoj").invoke(null));
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93 }
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94
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95 @Test
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96 public void explicitExportPreferred1() throws IOException {
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97 // @formatter:off
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98 vm.eval(L1,
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99 "explicit.ahoj=43"
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100 );
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101 vm.eval(L2,
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102 "implicit.ahoj=42"
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103 );
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104 Object ret = vm.eval(L3,
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105 "return=ahoj"
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106 );
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107 // @formatter:on
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108 assertEquals("Explicit import from L2 is used", "43", ret);
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109 assertEquals("Global symbol is also 43", "43", vm.findGlobalSymbol("ahoj").invoke(null));
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110 }
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111
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112 private static final class Ctx {
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113 final Map<String, String> explicit = new HashMap<>();
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114 final Map<String, String> implicit = new HashMap<>();
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115 final Env env;
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116
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117 public Ctx(Env env) {
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118 this.env = env;
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119 }
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120 }
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121
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122 private abstract static class AbstractExportImportLanguage extends TruffleLanguage<Ctx> {
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123
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124 @Override
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125 protected Ctx createContext(Env env) {
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126 return new Ctx(env);
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127 }
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128
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129 @Override
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130 protected CallTarget parse(Source code, Node context, String... argumentNames) throws IOException {
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131 return new ValueCallTarget(code, this);
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132 }
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133
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134 @Override
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135 protected Object findExportedSymbol(Ctx context, String globalName, boolean onlyExplicit) {
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136 if (context.explicit.containsKey(globalName)) {
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137 return context.explicit.get(globalName);
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138 }
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139 if (!onlyExplicit && context.implicit.containsKey(globalName)) {
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140 return context.implicit.get(globalName);
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141 }
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142 return null;
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143 }
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144
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145 @Override
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146 protected Object getLanguageGlobal(Ctx context) {
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147 return null;
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148 }
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149
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150 @Override
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151 protected boolean isObjectOfLanguage(Object object) {
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152 return false;
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153 }
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154
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155 @Override
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156 protected ToolSupportProvider getToolSupport() {
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157 return null;
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158 }
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159
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160 @Override
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161 protected DebugSupportProvider getDebugSupport() {
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162 return null;
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163 }
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164
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165 private Object importExport(Source code) {
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166 final Node node = createFindContextNode();
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167 Ctx ctx = findContext(node);
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168 Properties p = new Properties();
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169 try (Reader r = code.getReader()) {
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170 p.load(r);
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171 } catch (IOException ex) {
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172 throw new IllegalStateException(ex);
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173 }
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174 Enumeration<Object> en = p.keys();
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175 while (en.hasMoreElements()) {
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176 Object n = en.nextElement();
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177 if (n instanceof String) {
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178 String k = (String) n;
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179 if (k.startsWith("explicit.")) {
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180 ctx.explicit.put(k.substring(9), p.getProperty(k));
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181 }
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182 if (k.startsWith("implicit.")) {
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183 ctx.implicit.put(k.substring(9), p.getProperty(k));
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184 }
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185 if (k.equals("return")) {
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186 return ctx.env.importSymbol(p.getProperty(k));
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187 }
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188 }
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189 }
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190 return null;
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191 }
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192 }
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193
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diff changeset
194 private static final class ValueCallTarget implements RootCallTarget {
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195 private final Source code;
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196 private final AbstractExportImportLanguage language;
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197
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198 private ValueCallTarget(Source code, AbstractExportImportLanguage language) {
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199 this.code = code;
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200 this.language = language;
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201 }
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202
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diff changeset
203 @Override
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diff changeset
204 public RootNode getRootNode() {
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diff changeset
205 throw new UnsupportedOperationException();
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206 }
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207
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diff changeset
208 @Override
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diff changeset
209 public Object call(Object... arguments) {
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diff changeset
210 return language.importExport(code);
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diff changeset
211 }
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diff changeset
212 }
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diff changeset
213
22012
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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parents: 21951
diff changeset
214 static final String L1 = "application/x-test-import-export-1";
21716
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parents:
diff changeset
215 private static final String L2 = "application/x-test-import-export-2";
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diff changeset
216 private static final String L3 = "application/x-test-import-export-3";
2f9e4d984d16 Give languages a chance to do implicit exports. Prefer explicit exports over implicit ones.
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parents:
diff changeset
217
21889
45083be8a812 Truffle: add a version string to the information provided with Language registration
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 21716
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218 @TruffleLanguage.Registration(mimeType = L1, name = "ImportExport1", version = "0")
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219 public static final class ExportImportLanguage1 extends AbstractExportImportLanguage {
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220 public static final AbstractExportImportLanguage INSTANCE = new ExportImportLanguage1();
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221
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222 public ExportImportLanguage1() {
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223 }
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224 }
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225
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226 @TruffleLanguage.Registration(mimeType = L2, name = "ImportExport2", version = "0")
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227 public static final class ExportImportLanguage2 extends AbstractExportImportLanguage {
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228 public static final AbstractExportImportLanguage INSTANCE = new ExportImportLanguage2();
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229
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230 public ExportImportLanguage2() {
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231 }
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232 }
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233
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234 @TruffleLanguage.Registration(mimeType = L3, name = "ImportExport3", version = "0")
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235 public static final class ExportImportLanguage3 extends AbstractExportImportLanguage {
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236 public static final AbstractExportImportLanguage INSTANCE = new ExportImportLanguage3();
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237
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238 private ExportImportLanguage3() {
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239 }
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240 }
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241
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242 }