Andreas Huber | 1aec397 | 2016-08-26 09:26:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 17 | #include "AST.h" |
| 18 | |
| 19 | #include "Coordinator.h" |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 20 | #include "Interface.h" |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 21 | #include "Location.h" |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 22 | #include "Method.h" |
Timur Iskhakov | 7fa79f6 | 2017-08-09 11:04:54 -0700 | [diff] [blame] | 23 | #include "Reference.h" |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 24 | #include "Scope.h" |
| 25 | |
Iliyan Malchev | a72e0d2 | 2016-09-09 11:03:08 -0700 | [diff] [blame] | 26 | #include <hidl-util/Formatter.h> |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 27 | #include <android-base/logging.h> |
| 28 | |
| 29 | namespace android { |
| 30 | |
Timur Iskhakov | 7fa79f6 | 2017-08-09 11:04:54 -0700 | [diff] [blame] | 31 | void AST::emitJavaReaderWriter(Formatter& out, const std::string& parcelObj, |
| 32 | const NamedReference<Type>* arg, bool isReader, |
| 33 | bool addPrefixToName) const { |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 34 | if (isReader) { |
Yifan Hong | 4ed1347 | 2016-11-02 10:44:11 -0700 | [diff] [blame] | 35 | out << arg->type().getJavaType() |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 36 | << " " |
Yifan Hong | a47eef3 | 2016-12-12 10:38:54 -0800 | [diff] [blame] | 37 | << (addPrefixToName ? "_hidl_out_" : "") |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 38 | << arg->name() |
| 39 | << " = "; |
| 40 | } |
| 41 | |
Yifan Hong | a47eef3 | 2016-12-12 10:38:54 -0800 | [diff] [blame] | 42 | arg->type().emitJavaReaderWriter(out, parcelObj, |
| 43 | (addPrefixToName ? "_hidl_out_" : "") + arg->name(), |
| 44 | isReader); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 45 | } |
| 46 | |
Steven Moreland | 368e460 | 2018-02-16 14:21:49 -0800 | [diff] [blame] | 47 | void AST::generateJavaTypes(Formatter& out, const std::string& limitToType) const { |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 48 | // Splits types.hal up into one java file per declared type. |
Steven Moreland | 5abcf01 | 2018-02-08 18:50:18 -0800 | [diff] [blame] | 49 | CHECK(!limitToType.empty()) << getFilename(); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 50 | |
Timur Iskhakov | cb0ba52 | 2017-07-17 20:01:37 -0700 | [diff] [blame] | 51 | for (const auto& type : mRootScope.getSubTypes()) { |
Neel Mehta | 9200af0 | 2019-07-19 13:24:57 -0700 | [diff] [blame] | 52 | std::string typeName = type->definedName(); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 53 | |
Steven Moreland | 5abcf01 | 2018-02-08 18:50:18 -0800 | [diff] [blame] | 54 | if (type->isTypeDef()) continue; |
| 55 | if (typeName != limitToType) continue; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 56 | |
Steven Moreland | 5abcf01 | 2018-02-08 18:50:18 -0800 | [diff] [blame] | 57 | out << "package " << mPackage.javaPackage() << ";\n\n\n"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 58 | |
Steven Moreland | 368e460 | 2018-02-16 14:21:49 -0800 | [diff] [blame] | 59 | type->emitJavaTypeDeclarations(out, true /* atTopLevel */); |
| 60 | return; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 61 | } |
| 62 | |
Steven Moreland | 5abcf01 | 2018-02-08 18:50:18 -0800 | [diff] [blame] | 63 | CHECK(false) << "generateJavaTypes could not find limitToType type"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 64 | } |
| 65 | |
Steven Moreland | 9bf5a09 | 2017-10-25 04:50:54 +0000 | [diff] [blame] | 66 | void emitGetService( |
| 67 | Formatter& out, |
| 68 | const std::string& ifaceName, |
| 69 | const std::string& fqName, |
| 70 | bool isRetry) { |
Steven Moreland | 7645fbd | 2019-03-12 18:49:28 -0700 | [diff] [blame] | 71 | if (isRetry) { |
| 72 | DocComment( |
| 73 | "This will invoke the equivalent of the C++ getService(std::string) if retry is\n" |
| 74 | "true or tryGetService(std::string) if retry is false. If the service is\n" |
| 75 | "available on the device and retry is true, this will wait for the service to\n" |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 76 | "start. Otherwise, it will return immediately even if the service is null.", |
| 77 | HIDL_LOCATION_HERE) |
Steven Moreland | 7645fbd | 2019-03-12 18:49:28 -0700 | [diff] [blame] | 78 | .emit(out); |
| 79 | } else { |
| 80 | DocComment( |
| 81 | "Warning: this will not wait for the interface to come up if it hasn't yet\n" |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 82 | "started. See getService(String,boolean) instead.", |
| 83 | HIDL_LOCATION_HERE) |
Steven Moreland | 7645fbd | 2019-03-12 18:49:28 -0700 | [diff] [blame] | 84 | .emit(out); |
| 85 | } |
Steven Moreland | 9bf5a09 | 2017-10-25 04:50:54 +0000 | [diff] [blame] | 86 | out << "public static " |
| 87 | << ifaceName |
| 88 | << " getService(String serviceName"; |
| 89 | if (isRetry) { |
| 90 | out << ", boolean retry"; |
| 91 | } |
| 92 | out << ") throws android.os.RemoteException "; |
| 93 | out.block([&] { |
| 94 | out << "return " |
| 95 | << ifaceName |
| 96 | << ".asInterface(android.os.HwBinder.getService(\"" |
| 97 | << fqName |
| 98 | << "\", serviceName"; |
| 99 | if (isRetry) { |
| 100 | out << ", retry"; |
| 101 | } |
| 102 | out << "));\n"; |
| 103 | }).endl().endl(); |
| 104 | |
Steven Moreland | 7645fbd | 2019-03-12 18:49:28 -0700 | [diff] [blame] | 105 | if (isRetry) { |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 106 | DocComment("Calls getService(\"default\",retry).", HIDL_LOCATION_HERE).emit(out); |
Steven Moreland | 7645fbd | 2019-03-12 18:49:28 -0700 | [diff] [blame] | 107 | } else { |
| 108 | DocComment( |
| 109 | "Warning: this will not wait for the interface to come up if it hasn't yet " |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 110 | "started. See getService(String,boolean) instead.", |
| 111 | HIDL_LOCATION_HERE) |
Steven Moreland | 7645fbd | 2019-03-12 18:49:28 -0700 | [diff] [blame] | 112 | .emit(out); |
| 113 | } |
Steven Moreland | 9bf5a09 | 2017-10-25 04:50:54 +0000 | [diff] [blame] | 114 | out << "public static " |
| 115 | << ifaceName |
| 116 | << " getService("; |
| 117 | if (isRetry) { |
| 118 | out << "boolean retry"; |
| 119 | } |
| 120 | out << ") throws android.os.RemoteException "; |
| 121 | out.block([&] { |
| 122 | out << "return getService(\"default\""; |
| 123 | if (isRetry) { |
| 124 | out << ", retry"; |
| 125 | } |
| 126 | out <<");\n"; |
| 127 | }).endl().endl(); |
| 128 | } |
| 129 | |
Steven Moreland | 368e460 | 2018-02-16 14:21:49 -0800 | [diff] [blame] | 130 | void AST::generateJava(Formatter& out, const std::string& limitToType) const { |
| 131 | CHECK(isJavaCompatible()) << getFilename(); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 132 | |
Steven Moreland | 19f11b5 | 2017-05-12 18:22:21 -0700 | [diff] [blame] | 133 | if (!AST::isInterface()) { |
Steven Moreland | 368e460 | 2018-02-16 14:21:49 -0800 | [diff] [blame] | 134 | generateJavaTypes(out, limitToType); |
| 135 | return; |
Andreas Huber | 0fa9e39 | 2016-08-31 09:05:44 -0700 | [diff] [blame] | 136 | } |
| 137 | |
Timur Iskhakov | cb0ba52 | 2017-07-17 20:01:37 -0700 | [diff] [blame] | 138 | const Interface* iface = mRootScope.getInterface(); |
Neel Mehta | 9200af0 | 2019-07-19 13:24:57 -0700 | [diff] [blame] | 139 | const std::string ifaceName = iface->definedName(); |
Jayant Chowdhary | 3f32c1f | 2016-09-15 16:53:56 -0700 | [diff] [blame] | 140 | const std::string baseName = iface->getBaseName(); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 141 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 142 | out << "package " << mPackage.javaPackage() << ";\n\n"; |
| 143 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 144 | const Interface *superType = iface->superType(); |
| 145 | |
Steven Moreland | 70cb55e | 2019-03-12 17:20:54 -0700 | [diff] [blame] | 146 | iface->emitDocComment(out); |
| 147 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 148 | out << "public interface " << ifaceName << " extends "; |
| 149 | |
Yi Kong | 56758da | 2018-07-24 16:21:37 -0700 | [diff] [blame] | 150 | if (superType != nullptr) { |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 151 | out << superType->fullJavaName(); |
| 152 | } else { |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 153 | out << "android.os.IHwInterface"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | out << " {\n"; |
| 157 | out.indent(); |
| 158 | |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 159 | DocComment("Fully-qualified interface name for this interface.", HIDL_LOCATION_HERE).emit(out); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 160 | out << "public static final String kInterfaceName = \"" |
| 161 | << mPackage.string() |
| 162 | << "::" |
| 163 | << ifaceName |
| 164 | << "\";\n\n"; |
| 165 | |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 166 | DocComment("Does a checked conversion from a binder to this class.", HIDL_LOCATION_HERE) |
| 167 | .emit(out); |
Andreas Huber | a2abe98 | 2017-04-04 14:42:09 -0700 | [diff] [blame] | 168 | out << "/* package private */ static " |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 169 | << ifaceName |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 170 | << " asInterface(android.os.IHwBinder binder) {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 171 | |
| 172 | out.indent(); |
| 173 | |
| 174 | out << "if (binder == null) {\n"; |
| 175 | out.indent(); |
| 176 | out << "return null;\n"; |
| 177 | out.unindent(); |
| 178 | out << "}\n\n"; |
| 179 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 180 | out << "android.os.IHwInterface iface =\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 181 | out.indent(); |
| 182 | out.indent(); |
| 183 | out << "binder.queryLocalInterface(kInterfaceName);\n\n"; |
| 184 | out.unindent(); |
| 185 | out.unindent(); |
| 186 | |
| 187 | out << "if ((iface != null) && (iface instanceof " |
| 188 | << ifaceName |
| 189 | << ")) {\n"; |
| 190 | |
| 191 | out.indent(); |
| 192 | out << "return (" << ifaceName << ")iface;\n"; |
| 193 | out.unindent(); |
| 194 | out << "}\n\n"; |
| 195 | |
Andreas Huber | a2abe98 | 2017-04-04 14:42:09 -0700 | [diff] [blame] | 196 | out << ifaceName << " proxy = new " << ifaceName << ".Proxy(binder);\n\n"; |
| 197 | out << "try {\n"; |
| 198 | out.indent(); |
| 199 | out << "for (String descriptor : proxy.interfaceChain()) {\n"; |
| 200 | out.indent(); |
| 201 | out << "if (descriptor.equals(kInterfaceName)) {\n"; |
| 202 | out.indent(); |
| 203 | out << "return proxy;\n"; |
| 204 | out.unindent(); |
| 205 | out << "}\n"; |
| 206 | out.unindent(); |
| 207 | out << "}\n"; |
| 208 | out.unindent(); |
| 209 | out << "} catch (android.os.RemoteException e) {\n"; |
| 210 | out.indent(); |
| 211 | out.unindent(); |
| 212 | out << "}\n\n"; |
| 213 | |
| 214 | out << "return null;\n"; |
| 215 | |
| 216 | out.unindent(); |
| 217 | out << "}\n\n"; |
| 218 | |
Neel Mehta | 291d02e | 2019-06-06 17:51:07 -0700 | [diff] [blame] | 219 | DocComment("Does a checked conversion from any interface to this class.", HIDL_LOCATION_HERE) |
| 220 | .emit(out); |
Andreas Huber | a2abe98 | 2017-04-04 14:42:09 -0700 | [diff] [blame] | 221 | out << "public static " |
| 222 | << ifaceName |
| 223 | << " castFrom(android.os.IHwInterface iface) {\n"; |
| 224 | out.indent(); |
| 225 | |
| 226 | out << "return (iface == null) ? null : " |
| 227 | << ifaceName |
| 228 | << ".asInterface(iface.asBinder());\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 229 | |
| 230 | out.unindent(); |
| 231 | out << "}\n\n"; |
| 232 | |
Yifan Hong | 084d11f | 2016-12-21 15:33:43 -0800 | [diff] [blame] | 233 | out << "@Override\npublic android.os.IHwBinder asBinder();\n\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 234 | |
Steven Moreland | 9bf5a09 | 2017-10-25 04:50:54 +0000 | [diff] [blame] | 235 | emitGetService(out, ifaceName, iface->fqName().string(), true /* isRetry */); |
| 236 | emitGetService(out, ifaceName, iface->fqName().string(), false /* isRetry */); |
Chris Phoenix | db0d634 | 2017-01-11 16:10:00 -0800 | [diff] [blame] | 237 | |
Steven Moreland | 70cb55e | 2019-03-12 17:20:54 -0700 | [diff] [blame] | 238 | iface->emitJavaTypeDeclarations(out, false /* atTopLevel */); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 239 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 240 | for (const auto &method : iface->methods()) { |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 241 | const bool needsCallback = method->results().size() > 1; |
| 242 | |
| 243 | if (needsCallback) { |
Yifan Hong | 601cfca | 2017-05-24 12:20:17 -0700 | [diff] [blame] | 244 | out << "\n@java.lang.FunctionalInterface\npublic interface " << method->name() |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 245 | << "Callback {\n"; |
| 246 | |
| 247 | out.indent(); |
| 248 | |
Yifan Hong | 932464e | 2017-03-30 15:40:22 -0700 | [diff] [blame] | 249 | out << "public void onValues("; |
| 250 | method->emitJavaResultSignature(out); |
| 251 | out << ");\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 252 | |
| 253 | out.unindent(); |
| 254 | out << "}\n\n"; |
| 255 | } |
| 256 | |
Steven Moreland | 49bad8d | 2018-05-17 15:45:26 -0700 | [diff] [blame] | 257 | method->emitDocComment(out); |
| 258 | |
Neel Mehta | 5b447c0 | 2019-05-23 16:12:24 -0700 | [diff] [blame] | 259 | method->emitJavaSignature(out); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 260 | |
Neel Mehta | 5b447c0 | 2019-05-23 16:12:24 -0700 | [diff] [blame] | 261 | out << "\n"; |
Steven Moreland | dad1b30 | 2016-12-20 15:56:00 -0800 | [diff] [blame] | 262 | out.indent(); |
Yifan Hong | 320a349 | 2017-03-27 10:33:09 -0700 | [diff] [blame] | 263 | out << "throws android.os.RemoteException;\n"; |
Steven Moreland | dad1b30 | 2016-12-20 15:56:00 -0800 | [diff] [blame] | 264 | out.unindent(); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 265 | } |
| 266 | |
| 267 | out << "\npublic static final class Proxy implements " |
| 268 | << ifaceName |
| 269 | << " {\n"; |
| 270 | |
| 271 | out.indent(); |
| 272 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 273 | out << "private android.os.IHwBinder mRemote;\n\n"; |
| 274 | out << "public Proxy(android.os.IHwBinder remote) {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 275 | out.indent(); |
Yifan Hong | 729e796 | 2016-12-21 16:04:27 -0800 | [diff] [blame] | 276 | out << "mRemote = java.util.Objects.requireNonNull(remote);\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 277 | out.unindent(); |
| 278 | out << "}\n\n"; |
| 279 | |
Yifan Hong | 084d11f | 2016-12-21 15:33:43 -0800 | [diff] [blame] | 280 | out << "@Override\npublic android.os.IHwBinder asBinder() {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 281 | out.indent(); |
| 282 | out << "return mRemote;\n"; |
| 283 | out.unindent(); |
| 284 | out << "}\n\n"; |
| 285 | |
Yifan Hong | e45b530 | 2017-02-22 10:49:07 -0800 | [diff] [blame] | 286 | |
| 287 | out << "@Override\npublic String toString() "; |
| 288 | out.block([&] { |
| 289 | out.sTry([&] { |
| 290 | out << "return this.interfaceDescriptor() + \"@Proxy\";\n"; |
Yifan Hong | 320a349 | 2017-03-27 10:33:09 -0700 | [diff] [blame] | 291 | }).sCatch("android.os.RemoteException ex", [&] { |
Yifan Hong | e45b530 | 2017-02-22 10:49:07 -0800 | [diff] [blame] | 292 | out << "/* ignored; handled below. */\n"; |
| 293 | }).endl(); |
| 294 | out << "return \"[class or subclass of \" + " |
| 295 | << ifaceName << ".kInterfaceName + \"]@Proxy\";\n"; |
| 296 | }).endl().endl(); |
| 297 | |
Yifan Hong | f89e106 | 2017-10-31 17:31:08 -0700 | [diff] [blame] | 298 | // Equals when internal binder object is equal (even if the interface Proxy object |
| 299 | // itself is different). This is similar to interfacesEqual in C++. |
| 300 | out << "@Override\npublic final boolean equals(java.lang.Object other) "; |
| 301 | out.block([&] { |
| 302 | out << "return android.os.HidlSupport.interfacesEqual(this, other);\n"; |
| 303 | }).endl().endl(); |
| 304 | |
| 305 | out << "@Override\npublic final int hashCode() "; |
| 306 | out.block([&] { |
| 307 | out << "return this.asBinder().hashCode();\n"; |
| 308 | }).endl().endl(); |
| 309 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 310 | const Interface *prevInterface = nullptr; |
| 311 | for (const auto &tuple : iface->allMethodsFromRoot()) { |
| 312 | const Method *method = tuple.method(); |
Andreas Huber | 37065d6 | 2017-02-07 14:36:54 -0800 | [diff] [blame] | 313 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 314 | const Interface *superInterface = tuple.interface(); |
| 315 | if (prevInterface != superInterface) { |
| 316 | out << "// Methods from " |
| 317 | << superInterface->fullName() |
| 318 | << " follow.\n"; |
| 319 | prevInterface = superInterface; |
| 320 | } |
| 321 | const bool returnsValue = !method->results().empty(); |
| 322 | const bool needsCallback = method->results().size() > 1; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 323 | |
Yifan Hong | 084d11f | 2016-12-21 15:33:43 -0800 | [diff] [blame] | 324 | out << "@Override\npublic "; |
Neel Mehta | 5b447c0 | 2019-05-23 16:12:24 -0700 | [diff] [blame] | 325 | method->emitJavaSignature(out); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 326 | |
Neel Mehta | 5b447c0 | 2019-05-23 16:12:24 -0700 | [diff] [blame] | 327 | out << "\n"; |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 328 | out.indent(); |
Steven Moreland | dad1b30 | 2016-12-20 15:56:00 -0800 | [diff] [blame] | 329 | out.indent(); |
Yifan Hong | 320a349 | 2017-03-27 10:33:09 -0700 | [diff] [blame] | 330 | out << "throws android.os.RemoteException {\n"; |
Steven Moreland | dad1b30 | 2016-12-20 15:56:00 -0800 | [diff] [blame] | 331 | out.unindent(); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 332 | |
Martijn Coenen | 115d428 | 2016-12-19 05:14:04 +0100 | [diff] [blame] | 333 | if (method->isHidlReserved() && method->overridesJavaImpl(IMPL_PROXY)) { |
| 334 | method->javaImpl(IMPL_PROXY, out); |
| 335 | out.unindent(); |
| 336 | out << "}\n"; |
| 337 | continue; |
| 338 | } |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 339 | out << "android.os.HwParcel _hidl_request = new android.os.HwParcel();\n"; |
| 340 | out << "_hidl_request.writeInterfaceToken(" |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 341 | << superInterface->fullJavaName() |
| 342 | << ".kInterfaceName);\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 343 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 344 | for (const auto &arg : method->args()) { |
| 345 | emitJavaReaderWriter( |
| 346 | out, |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 347 | "_hidl_request", |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 348 | arg, |
Yifan Hong | a47eef3 | 2016-12-12 10:38:54 -0800 | [diff] [blame] | 349 | false /* isReader */, |
| 350 | false /* addPrefixToName */); |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 351 | } |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 352 | |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 353 | out << "\nandroid.os.HwParcel _hidl_reply = new android.os.HwParcel();\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 354 | |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 355 | out.sTry([&] { |
| 356 | out << "mRemote.transact(" |
| 357 | << method->getSerialId() |
| 358 | << " /* " |
| 359 | << method->name() |
| 360 | << " */, _hidl_request, _hidl_reply, "; |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 361 | |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 362 | if (method->isOneway()) { |
Steven Moreland | 7794369 | 2018-08-09 12:53:42 -0700 | [diff] [blame] | 363 | out << Interface::FLAG_ONE_WAY->javaValue(); |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 364 | } else { |
| 365 | out << "0 /* flags */"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 366 | } |
| 367 | |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 368 | out << ");\n"; |
Andreas Huber | 8b5da22 | 2016-08-18 14:28:18 -0700 | [diff] [blame] | 369 | |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 370 | if (!method->isOneway()) { |
| 371 | out << "_hidl_reply.verifySuccess();\n"; |
| 372 | } else { |
| 373 | CHECK(!returnsValue); |
| 374 | } |
| 375 | |
| 376 | out << "_hidl_request.releaseTemporaryStorage();\n"; |
| 377 | |
| 378 | if (returnsValue) { |
| 379 | out << "\n"; |
| 380 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 381 | for (const auto &arg : method->results()) { |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 382 | emitJavaReaderWriter( |
| 383 | out, |
| 384 | "_hidl_reply", |
| 385 | arg, |
| 386 | true /* isReader */, |
| 387 | true /* addPrefixToName */); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 388 | } |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 389 | |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 390 | if (needsCallback) { |
Steven Moreland | 4ddd833 | 2017-04-27 19:27:18 -0700 | [diff] [blame] | 391 | out << "_hidl_cb.onValues("; |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 392 | |
| 393 | bool firstField = true; |
| 394 | for (const auto &arg : method->results()) { |
| 395 | if (!firstField) { |
| 396 | out << ", "; |
| 397 | } |
| 398 | |
| 399 | out << "_hidl_out_" << arg->name(); |
| 400 | firstField = false; |
| 401 | } |
| 402 | |
| 403 | out << ");\n"; |
| 404 | } else { |
| 405 | const std::string returnName = method->results()[0]->name(); |
| 406 | out << "return _hidl_out_" << returnName << ";\n"; |
| 407 | } |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 408 | } |
Martijn Coenen | 4de083b | 2017-03-16 18:49:43 +0100 | [diff] [blame] | 409 | }).sFinally([&] { |
| 410 | out << "_hidl_reply.release();\n"; |
| 411 | }).endl(); |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 412 | |
| 413 | out.unindent(); |
| 414 | out << "}\n\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 415 | } |
| 416 | |
| 417 | out.unindent(); |
| 418 | out << "}\n"; |
| 419 | |
| 420 | //////////////////////////////////////////////////////////////////////////// |
| 421 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 422 | out << "\npublic static abstract class Stub extends android.os.HwBinder " |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 423 | << "implements " |
| 424 | << ifaceName << " {\n"; |
| 425 | |
| 426 | out.indent(); |
| 427 | |
Yifan Hong | 084d11f | 2016-12-21 15:33:43 -0800 | [diff] [blame] | 428 | out << "@Override\npublic android.os.IHwBinder asBinder() {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 429 | out.indent(); |
Yifan Hong | f89e106 | 2017-10-31 17:31:08 -0700 | [diff] [blame] | 430 | // If we change this behavior in the future and asBinder does not return "this", |
| 431 | // equals and hashCode should also be overridden. |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 432 | out << "return this;\n"; |
| 433 | out.unindent(); |
| 434 | out << "}\n\n"; |
| 435 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 436 | for (Method *method : iface->hidlReservedMethods()) { |
Martijn Coenen | af712c0 | 2016-11-16 15:26:27 +0100 | [diff] [blame] | 437 | // b/32383557 this is a hack. We need to change this if we have more reserved methods. |
| 438 | CHECK_LE(method->results().size(), 1u); |
| 439 | std::string resultType = method->results().size() == 0 ? "void" : |
| 440 | method->results()[0]->type().getJavaType(); |
Steven Moreland | 327fd8b | 2018-08-10 15:40:41 -0700 | [diff] [blame] | 441 | |
| 442 | bool canBeOverriden = method->name() == "debug"; |
| 443 | |
| 444 | out << "@Override\npublic " << (canBeOverriden ? "" : "final ") << resultType << " " |
| 445 | << method->name() << "("; |
Yifan Hong | 932464e | 2017-03-30 15:40:22 -0700 | [diff] [blame] | 446 | method->emitJavaArgSignature(out); |
| 447 | out << ") {\n"; |
Martijn Coenen | 115d428 | 2016-12-19 05:14:04 +0100 | [diff] [blame] | 448 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 449 | out.indent(); |
Steven Moreland | 937408a | 2017-03-20 09:54:18 -0700 | [diff] [blame] | 450 | method->javaImpl(IMPL_INTERFACE, out); |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 451 | out.unindent(); |
| 452 | out << "\n}\n\n"; |
| 453 | } |
| 454 | |
Yifan Hong | 084d11f | 2016-12-21 15:33:43 -0800 | [diff] [blame] | 455 | out << "@Override\n" |
| 456 | << "public android.os.IHwInterface queryLocalInterface(String descriptor) {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 457 | out.indent(); |
| 458 | // XXX what about potential superClasses? |
| 459 | out << "if (kInterfaceName.equals(descriptor)) {\n"; |
| 460 | out.indent(); |
| 461 | out << "return this;\n"; |
| 462 | out.unindent(); |
| 463 | out << "}\n"; |
| 464 | out << "return null;\n"; |
| 465 | out.unindent(); |
| 466 | out << "}\n\n"; |
| 467 | |
Yifan Hong | 320a349 | 2017-03-27 10:33:09 -0700 | [diff] [blame] | 468 | out << "public void registerAsService(String serviceName) throws android.os.RemoteException {\n"; |
Andreas Huber | 2bb6e1e | 2016-10-25 13:26:43 -0700 | [diff] [blame] | 469 | out.indent(); |
| 470 | |
Martijn Coenen | bc9f5c9 | 2017-03-06 13:04:05 +0100 | [diff] [blame] | 471 | out << "registerService(serviceName);\n"; |
Andreas Huber | 2bb6e1e | 2016-10-25 13:26:43 -0700 | [diff] [blame] | 472 | |
| 473 | out.unindent(); |
| 474 | out << "}\n\n"; |
| 475 | |
Yifan Hong | e45b530 | 2017-02-22 10:49:07 -0800 | [diff] [blame] | 476 | out << "@Override\npublic String toString() "; |
| 477 | out.block([&] { |
| 478 | out << "return this.interfaceDescriptor() + \"@Stub\";\n"; |
| 479 | }).endl().endl(); |
| 480 | |
Yifan Hong | 084d11f | 2016-12-21 15:33:43 -0800 | [diff] [blame] | 481 | out << "@Override\n" |
| 482 | << "public void onTransact(" |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 483 | << "int _hidl_code, " |
| 484 | << "android.os.HwParcel _hidl_request, " |
| 485 | << "final android.os.HwParcel _hidl_reply, " |
Steven Moreland | dad1b30 | 2016-12-20 15:56:00 -0800 | [diff] [blame] | 486 | << "int _hidl_flags)\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 487 | out.indent(); |
Steven Moreland | dad1b30 | 2016-12-20 15:56:00 -0800 | [diff] [blame] | 488 | out.indent(); |
Yifan Hong | 320a349 | 2017-03-27 10:33:09 -0700 | [diff] [blame] | 489 | out << "throws android.os.RemoteException {\n"; |
Steven Moreland | dad1b30 | 2016-12-20 15:56:00 -0800 | [diff] [blame] | 490 | out.unindent(); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 491 | |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 492 | out << "switch (_hidl_code) {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 493 | |
| 494 | out.indent(); |
| 495 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 496 | for (const auto &tuple : iface->allMethodsFromRoot()) { |
| 497 | const Method *method = tuple.method(); |
Andreas Huber | 37065d6 | 2017-02-07 14:36:54 -0800 | [diff] [blame] | 498 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 499 | const Interface *superInterface = tuple.interface(); |
| 500 | const bool returnsValue = !method->results().empty(); |
| 501 | const bool needsCallback = method->results().size() > 1; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 502 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 503 | out << "case " |
| 504 | << method->getSerialId() |
| 505 | << " /* " |
| 506 | << method->name() |
| 507 | << " */:\n{\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 508 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 509 | out.indent(); |
Andreas Huber | 37065d6 | 2017-02-07 14:36:54 -0800 | [diff] [blame] | 510 | |
Martijn Coenen | 115d428 | 2016-12-19 05:14:04 +0100 | [diff] [blame] | 511 | if (method->isHidlReserved() && method->overridesJavaImpl(IMPL_STUB)) { |
| 512 | method->javaImpl(IMPL_STUB, out); |
| 513 | out.unindent(); |
| 514 | out << "break;\n"; |
| 515 | out << "}\n\n"; |
| 516 | continue; |
| 517 | } |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 518 | |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 519 | out << "_hidl_request.enforceInterface(" |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 520 | << superInterface->fullJavaName() |
| 521 | << ".kInterfaceName);\n\n"; |
| 522 | |
| 523 | for (const auto &arg : method->args()) { |
| 524 | emitJavaReaderWriter( |
| 525 | out, |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 526 | "_hidl_request", |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 527 | arg, |
Yifan Hong | a47eef3 | 2016-12-12 10:38:54 -0800 | [diff] [blame] | 528 | true /* isReader */, |
| 529 | false /* addPrefixToName */); |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 530 | } |
| 531 | |
| 532 | if (!needsCallback && returnsValue) { |
Timur Iskhakov | 7fa79f6 | 2017-08-09 11:04:54 -0700 | [diff] [blame] | 533 | const NamedReference<Type>* returnArg = method->results()[0]; |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 534 | |
Yifan Hong | 4ed1347 | 2016-11-02 10:44:11 -0700 | [diff] [blame] | 535 | out << returnArg->type().getJavaType() |
Yifan Hong | a47eef3 | 2016-12-12 10:38:54 -0800 | [diff] [blame] | 536 | << " _hidl_out_" |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 537 | << returnArg->name() |
| 538 | << " = "; |
| 539 | } |
| 540 | |
| 541 | out << method->name() |
| 542 | << "("; |
| 543 | |
| 544 | bool firstField = true; |
| 545 | for (const auto &arg : method->args()) { |
| 546 | if (!firstField) { |
| 547 | out << ", "; |
| 548 | } |
| 549 | |
| 550 | out << arg->name(); |
| 551 | |
| 552 | firstField = false; |
| 553 | } |
| 554 | |
| 555 | if (needsCallback) { |
| 556 | if (!firstField) { |
| 557 | out << ", "; |
| 558 | } |
| 559 | |
| 560 | out << "new " << method->name() << "Callback() {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 561 | out.indent(); |
| 562 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 563 | out << "@Override\n" |
Yifan Hong | 932464e | 2017-03-30 15:40:22 -0700 | [diff] [blame] | 564 | << "public void onValues("; |
| 565 | method->emitJavaResultSignature(out); |
| 566 | out << ") {\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 567 | |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 568 | out.indent(); |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 569 | out << "_hidl_reply.writeStatus(android.os.HwParcel.STATUS_SUCCESS);\n"; |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 570 | |
| 571 | for (const auto &arg : method->results()) { |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 572 | emitJavaReaderWriter( |
| 573 | out, |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 574 | "_hidl_reply", |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 575 | arg, |
Yifan Hong | a47eef3 | 2016-12-12 10:38:54 -0800 | [diff] [blame] | 576 | false /* isReader */, |
| 577 | false /* addPrefixToName */); |
| 578 | // no need to add _hidl_out because out vars are are scoped |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 579 | } |
| 580 | |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 581 | out << "_hidl_reply.send();\n" |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 582 | << "}}"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 583 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 584 | out.unindent(); |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 585 | out.unindent(); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 586 | } |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 587 | |
| 588 | out << ");\n"; |
| 589 | |
Martijn Coenen | 0bb0d41 | 2017-02-08 10:21:30 +0100 | [diff] [blame] | 590 | if (!needsCallback && !method->isOneway()) { |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 591 | out << "_hidl_reply.writeStatus(android.os.HwParcel.STATUS_SUCCESS);\n"; |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 592 | |
| 593 | if (returnsValue) { |
Timur Iskhakov | 7fa79f6 | 2017-08-09 11:04:54 -0700 | [diff] [blame] | 594 | const NamedReference<Type>* returnArg = method->results()[0]; |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 595 | |
| 596 | emitJavaReaderWriter( |
| 597 | out, |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 598 | "_hidl_reply", |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 599 | returnArg, |
Yifan Hong | a47eef3 | 2016-12-12 10:38:54 -0800 | [diff] [blame] | 600 | false /* isReader */, |
| 601 | true /* addPrefixToName */); |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 602 | } |
| 603 | |
Steven Moreland | 4b39bc1 | 2016-11-16 10:42:24 -0800 | [diff] [blame] | 604 | out << "_hidl_reply.send();\n"; |
Yifan Hong | 10fe0b5 | 2016-10-19 14:20:17 -0700 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | out << "break;\n"; |
| 608 | out.unindent(); |
| 609 | out << "}\n\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | out.unindent(); |
| 613 | out << "}\n"; |
| 614 | |
| 615 | out.unindent(); |
| 616 | out << "}\n"; |
| 617 | |
| 618 | out.unindent(); |
| 619 | out << "}\n"; |
| 620 | |
| 621 | out.unindent(); |
| 622 | out << "}\n"; |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 623 | } |
| 624 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 625 | } // namespace android |