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annotate graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPlugins.java @ 19147:609480dfa0d8

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Create ExplodeLoop plugin prototype. Special sort for blocks from bci block map builder for explode loop methods. Graph builder plugin for customizing static field accesses. New Truffle option TruffleExcludeAssertions default true that excludes assertion code from being partial evaluated in the new partial evaluator.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 05 Feb 2015 03:25:21 +0100
parents 18caaceabfdb
children ac9ad302e12f
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1 /*
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2 * Copyright (c) 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.graal.java;
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24
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25 import static java.lang.String.*;
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26
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27 import java.lang.reflect.*;
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28 import java.util.*;
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29
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30 import com.oracle.graal.api.meta.*;
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31 import com.oracle.graal.compiler.common.*;
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32 import com.oracle.graal.nodes.*;
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33 import com.oracle.graal.nodes.calc.*;
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34
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35 /**
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36 * Interface for managing a set of graph builder {@link GraphBuilderPlugin}s.
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37 */
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38 public interface GraphBuilderPlugins {
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39
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40 public interface LoadFieldPlugin extends GraphBuilderPlugin {
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41 @SuppressWarnings("unused")
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42 default boolean apply(GraphBuilderContext builder, ValueNode receiver, ResolvedJavaField field) {
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43 return false;
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44 }
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45
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46 @SuppressWarnings("unused")
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47 default boolean apply(GraphBuilderContext graphBuilderContext, ResolvedJavaField staticField) {
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48 return false;
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49 }
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50 }
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51
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52 public interface ParameterPlugin extends GraphBuilderPlugin {
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53 FloatingNode interceptParameter(int index);
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54 }
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55
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56 public interface InlineInvokePlugin extends GraphBuilderPlugin {
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57 boolean shouldInlineInvoke(ResolvedJavaMethod method, int depth);
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58 }
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59
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60 public interface LoopExplosionPlugin extends GraphBuilderPlugin {
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61 boolean shouldExplodeLoops(ResolvedJavaMethod method);
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62 }
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63
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64 /**
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65 * Plugin for handling a method invocation.
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66 */
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67 public interface InvocationPlugin extends GraphBuilderPlugin {
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68 /**
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69 * Tries to handle an invocation to a method with no arguments.
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70 *
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71 * @return {@code true} this plugin handled the invocation
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72 */
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73 default boolean apply(GraphBuilderContext builder) {
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74 throw invalidHandler(builder);
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75 }
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76
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77 /**
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78 * Tries to handle an invocation to a method with one argument.
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79 *
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80 * @return {@code true} this plugin handled the invocation
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81 */
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82 default boolean apply(GraphBuilderContext builder, ValueNode arg) {
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83 throw invalidHandler(builder, arg);
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84 }
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85
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86 /**
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87 * Tries to handle an invocation to a method with two arguments.
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88 *
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89 * @return {@code true} this plugin handled the invocation
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90 */
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91 default boolean apply(GraphBuilderContext builder, ValueNode arg1, ValueNode arg2) {
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92 throw invalidHandler(builder, arg1, arg2);
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93 }
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94
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95 /**
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96 * Tries to handle an invocation to a method with three arguments.
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97 *
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98 * @return {@code true} this plugin handled the invocation
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99 */
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100 default boolean apply(GraphBuilderContext builder, ValueNode arg1, ValueNode arg2, ValueNode arg3) {
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101 throw invalidHandler(builder, arg1, arg2, arg3);
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102 }
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103
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104 default boolean apply(GraphBuilderContext builder, ValueNode[] args) {
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105 if (args.length == 0) {
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106 return apply(builder);
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107 } else if (args.length == 1) {
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108 return apply(builder, args[0]);
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109 } else if (args.length == 2) {
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110 return apply(builder, args[0], args[1]);
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111 } else if (args.length == 3) {
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112 return apply(builder, args[0], args[1], args[2]);
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113 } else {
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114 throw invalidHandler(builder, args);
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115 }
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116 }
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117
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118 default Error invalidHandler(@SuppressWarnings("unused") GraphBuilderContext builder, ValueNode... args) {
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119 return new GraalInternalError("Invocation plugin %s does not handle invocations with %d arguments", getClass().getSimpleName(), args.length);
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120 }
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121 }
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122
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123 /**
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124 * Utility for {@linkplain GraphBuilderPlugins#register(ResolvedJavaMethod, InvocationPlugin)
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125 * registration} of plugins.
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126 */
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127 public static class Registration {
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128
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129 /**
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130 * Sentinel class for use with {@link Registration#register1},
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131 * {@link Registration#register2} or {@link Registration#register3} to denote the receiver
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132 * argument for a non-static method.
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133 */
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134 public static final class Receiver {
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135 private Receiver() {
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136 throw GraalInternalError.shouldNotReachHere();
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137 }
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138 }
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139
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140 private final GraphBuilderPlugins plugins;
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141 private final MetaAccessProvider metaAccess;
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142 private final Class<?> declaringClass;
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143
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144 /**
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145 * Creates an object for registering plugins for methods declared by a given class.
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146 *
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147 * @param plugins where to register the plugins
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148 * @param metaAccess used to resolve classes and methods
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149 * @param declaringClass the class declaring the methods for which plugins will be
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150 * registered via this object
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151 */
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152 public Registration(GraphBuilderPlugins plugins, MetaAccessProvider metaAccess, Class<?> declaringClass) {
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153 this.plugins = plugins;
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154 this.metaAccess = metaAccess;
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155 this.declaringClass = declaringClass;
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156 }
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157
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158 /**
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159 * Registers a plugin for a method with no arguments.
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160 *
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161 * @param name the name of the method
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162 * @param plugin the plugin to be registered
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163 */
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164 public void register0(String name, InvocationPlugin plugin) {
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165 plugins.register(resolve(metaAccess, declaringClass, name), plugin);
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166 }
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167
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168 /**
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169 * Registers a plugin for a method with 1 argument.
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170 *
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171 * @param name the name of the method
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172 * @param plugin the plugin to be registered
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173 */
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174 public void register1(String name, Class<?> arg, InvocationPlugin plugin) {
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175 ResolvedJavaMethod method = arg == Receiver.class ? resolve(metaAccess, declaringClass, name) : resolve(metaAccess, declaringClass, name, arg);
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176 plugins.register(method, plugin);
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177 }
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178
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179 /**
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180 * Registers a plugin for a method with 2 arguments.
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181 *
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182 * @param name the name of the method
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183 * @param plugin the plugin to be registered
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184 */
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185 public void register2(String name, Class<?> arg1, Class<?> arg2, InvocationPlugin plugin) {
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186 ResolvedJavaMethod method = arg1 == Receiver.class ? resolve(metaAccess, declaringClass, name, arg2) : resolve(metaAccess, declaringClass, name, arg1, arg2);
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187 plugins.register(method, plugin);
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188 }
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189
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190 /**
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191 * Registers a plugin for a method with 3 arguments.
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192 *
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193 * @param name the name of the method
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194 * @param plugin the plugin to be registered
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195 */
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196 public void register3(String name, Class<?> arg1, Class<?> arg2, Class<?> arg3, InvocationPlugin plugin) {
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197 ResolvedJavaMethod method = arg1 == Receiver.class ? resolve(metaAccess, declaringClass, name, arg2, arg3) : resolve(metaAccess, declaringClass, name, arg1, arg2, arg3);
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198 plugins.register(method, plugin);
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199 }
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200
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201 /**
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202 * Resolves a method given a declaring class, name and parameter types.
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203 */
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204 public static ResolvedJavaMethod resolve(MetaAccessProvider metaAccess, Class<?> declaringClass, String name, Class<?>... parameterTypes) {
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205 try {
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206 return metaAccess.lookupJavaMethod(name.equals("<init>") ? declaringClass.getDeclaredConstructor(parameterTypes) : declaringClass.getDeclaredMethod(name, parameterTypes));
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207 } catch (NoSuchMethodException | SecurityException e) {
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208 throw new GraalInternalError(e);
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209 }
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210 }
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211 }
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212
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213 public static class InvocationPluginChecker {
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214 static final Class<?>[] APPLY0 = {GraphBuilderContext.class};
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215 static final Class<?>[] APPLY1 = {GraphBuilderContext.class, ValueNode.class};
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216 static final Class<?>[] APPLY2 = {GraphBuilderContext.class, ValueNode.class, ValueNode.class};
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217 static final Class<?>[] APPLY3 = {GraphBuilderContext.class, ValueNode.class, ValueNode.class, ValueNode.class};
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218 static final Class<?>[][] SIGS = {APPLY0, APPLY1, APPLY2, APPLY3};
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219
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220 public static boolean check(ResolvedJavaMethod method, InvocationPlugin plugin) {
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221 int arguments = method.getSignature().getParameterCount(!method.isStatic());
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222 assert arguments < SIGS.length : format("need to extend %s to support method with %d arguments: %s", InvocationPlugin.class.getSimpleName(), arguments, method.format("%H.%n(%p)"));
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223 Method expected = null;
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224 for (Method m : plugin.getClass().getDeclaredMethods()) {
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225 if (m.getName().equals("apply")) {
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226 Class<?>[] parameterTypes = m.getParameterTypes();
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227 assert Arrays.equals(SIGS[arguments], parameterTypes) : format("graph builder plugin for %s has wrong signature%nexpected: (%s)%n actual: (%s)", method.format("%H.%n(%p)"),
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228 sigString(SIGS[arguments]), sigString(m.getParameterTypes()));
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229 expected = m;
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230 }
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231 }
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232 assert expected != null : format("graph builder plugin %s must define exactly one \"apply\" method, none found", plugin);
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233 return true;
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234 }
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235
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236 protected static String sigString(Class<?>... sig) {
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237 StringBuilder sb = new StringBuilder();
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238 for (Class<?> t : sig) {
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239 if (sb.length() != 0) {
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240 sb.append(", ");
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241 }
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242 sb.append(t.getSimpleName());
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243 }
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244 return sb.toString();
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245 }
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246
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247 }
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248
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249 /**
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250 * Registers an {@link InvocationPlugin} for a given method. There must be no plugin currently
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251 * registered for {@code method}.
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252 */
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253 void register(ResolvedJavaMethod method, InvocationPlugin plugin);
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254
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255 /**
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256 * Gets the {@link InvocationPlugin} for a given method.
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257 *
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258 * @param method the method to lookup
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259 * @return the plugin associated with {@code method} or {@code null} if none exists
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260 */
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261 InvocationPlugin lookupInvocation(ResolvedJavaMethod method);
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262 }