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 | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 17 | #include "AST.h" |
| 18 | |
| 19 | #include "Coordinator.h" |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 20 | #include "EnumType.h" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 21 | #include "Formatter.h" |
| 22 | #include "Interface.h" |
| 23 | #include "Method.h" |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 24 | #include "ScalarType.h" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 25 | #include "Scope.h" |
| 26 | |
Andreas Huber | dca261f | 2016-08-04 13:47:51 -0700 | [diff] [blame] | 27 | #include <algorithm> |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 28 | #include <android-base/logging.h> |
Andreas Huber | dca261f | 2016-08-04 13:47:51 -0700 | [diff] [blame] | 29 | #include <string> |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 30 | #include <vector> |
| 31 | |
| 32 | namespace android { |
| 33 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 34 | static std::string upcase(const std::string in) { |
| 35 | std::string out{in}; |
| 36 | |
| 37 | for (auto &ch : out) { |
| 38 | ch = toupper(ch); |
| 39 | } |
| 40 | |
| 41 | return out; |
| 42 | } |
| 43 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 44 | status_t AST::generateCpp(const std::string &outputPath) const { |
| 45 | status_t err = generateInterfaceHeader(outputPath); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 46 | |
| 47 | if (err == OK) { |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 48 | err = generateStubHeader(outputPath); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 49 | } |
| 50 | |
| 51 | if (err == OK) { |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 52 | err = generateProxyHeader(outputPath); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | if (err == OK) { |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 56 | err = generateAllSource(outputPath); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | return err; |
| 60 | } |
| 61 | |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 62 | void AST::getPackageComponents( |
| 63 | std::vector<std::string> *components) const { |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 64 | mPackage.getPackageComponents(components); |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | void AST::getPackageAndVersionComponents( |
| 68 | std::vector<std::string> *components, bool cpp_compatible) const { |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 69 | mPackage.getPackageAndVersionComponents(components, cpp_compatible); |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 70 | } |
| 71 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 72 | std::string AST::makeHeaderGuard(const std::string &baseName) const { |
| 73 | std::vector<std::string> packageComponents; |
| 74 | getPackageAndVersionComponents( |
| 75 | &packageComponents, true /* cpp_compatible */); |
| 76 | |
| 77 | std::string guard = "HIDL_GENERATED"; |
| 78 | for (const auto &component : packageComponents) { |
| 79 | guard += "_"; |
| 80 | guard += component; |
| 81 | } |
| 82 | |
| 83 | guard += "_"; |
| 84 | guard += baseName; |
| 85 | guard += "_H_"; |
| 86 | |
| 87 | return guard; |
| 88 | } |
| 89 | |
| 90 | void AST::enterLeaveNamespace(Formatter &out, bool enter) const { |
| 91 | std::vector<std::string> packageComponents; |
| 92 | getPackageAndVersionComponents( |
| 93 | &packageComponents, true /* cpp_compatible */); |
| 94 | |
| 95 | if (enter) { |
| 96 | for (const auto &component : packageComponents) { |
| 97 | out << "namespace " << component << " {\n"; |
| 98 | } |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 99 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 100 | out.setNamespace(mPackage.cppNamespace() + "::"); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 101 | } else { |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 102 | out.setNamespace(std::string()); |
| 103 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 104 | for (auto it = packageComponents.rbegin(); |
| 105 | it != packageComponents.rend(); |
| 106 | ++it) { |
| 107 | out << "} // namespace " << *it << "\n"; |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 112 | status_t AST::generateInterfaceHeader(const std::string &outputPath) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 113 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 114 | std::string path = outputPath; |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 115 | path.append(mCoordinator->convertPackageRootToPath(mPackage)); |
Andreas Huber | dca261f | 2016-08-04 13:47:51 -0700 | [diff] [blame] | 116 | path.append(mCoordinator->getPackagePath(mPackage, true /* relative */)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 117 | |
| 118 | std::string ifaceName; |
| 119 | bool isInterface = true; |
| 120 | if (!AST::isInterface(&ifaceName)) { |
| 121 | ifaceName = "types"; |
| 122 | isInterface = false; |
| 123 | } |
| 124 | path.append(ifaceName); |
| 125 | path.append(".h"); |
| 126 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 127 | CHECK(Coordinator::MakeParentHierarchy(path)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 128 | FILE *file = fopen(path.c_str(), "w"); |
| 129 | |
| 130 | if (file == NULL) { |
| 131 | return -errno; |
| 132 | } |
| 133 | |
| 134 | Formatter out(file); |
| 135 | |
| 136 | const std::string guard = makeHeaderGuard(ifaceName); |
| 137 | |
| 138 | out << "#ifndef " << guard << "\n"; |
| 139 | out << "#define " << guard << "\n\n"; |
| 140 | |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 141 | for (const auto &item : mImportedNames) { |
| 142 | out << "#include <"; |
| 143 | |
| 144 | std::vector<std::string> components; |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 145 | item.getPackageAndVersionComponents( |
| 146 | &components, false /* cpp_compatible */); |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 147 | |
| 148 | for (const auto &component : components) { |
| 149 | out << component << "/"; |
| 150 | } |
| 151 | |
| 152 | out << item.name() |
| 153 | << ".h>\n"; |
| 154 | } |
| 155 | |
| 156 | if (!mImportedNames.empty()) { |
| 157 | out << "\n"; |
| 158 | } |
| 159 | |
Martijn Coenen | 7473fab | 2016-08-19 14:05:40 +0200 | [diff] [blame] | 160 | out << "#include <hidl/HidlSupport.h>\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 161 | |
| 162 | if (isInterface) { |
| 163 | out << "#include <hwbinder/IBinder.h>\n"; |
| 164 | out << "#include <hwbinder/IInterface.h>\n"; |
| 165 | out << "#include <hwbinder/Status.h>\n"; |
| 166 | } |
| 167 | |
| 168 | out << "#include <utils/NativeHandle.h>\n\n"; |
| 169 | |
| 170 | enterLeaveNamespace(out, true /* enter */); |
| 171 | out << "\n"; |
| 172 | |
| 173 | if (isInterface) { |
| 174 | out << "struct " |
| 175 | << ifaceName |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 176 | << " : public "; |
| 177 | |
| 178 | const Interface *iface = mRootScope->getInterface(); |
| 179 | const Interface *superType = iface->superType(); |
| 180 | |
| 181 | if (superType != NULL) { |
| 182 | out << superType->fullName(); |
| 183 | } else { |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 184 | out << "::android::hardware::IInterface"; |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | out << " {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 188 | |
| 189 | out.indent(); |
| 190 | |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 191 | // cut off the leading 'I'. |
| 192 | const std::string baseName = ifaceName.substr(1); |
| 193 | |
| 194 | out << "DECLARE_HWBINDER_META_INTERFACE(" << baseName << ");\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | status_t err = emitTypeDeclarations(out); |
| 198 | |
| 199 | if (err != OK) { |
| 200 | return err; |
| 201 | } |
| 202 | |
| 203 | if (isInterface) { |
| 204 | const Interface *iface = mRootScope->getInterface(); |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 205 | const Interface *superType = iface->superType(); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 206 | |
| 207 | out << "enum Call {\n"; |
| 208 | out.indent(); |
| 209 | |
| 210 | bool first = true; |
| 211 | for (const auto &method : iface->methods()) { |
| 212 | out << upcase(method->name()); |
| 213 | |
| 214 | if (first) { |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 215 | out << " = "; |
| 216 | if (superType != NULL) { |
| 217 | out << superType->fullName() |
| 218 | << "::Call::CallCount"; |
| 219 | } else { |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 220 | out << "::android::hardware::IBinder::FIRST_CALL_TRANSACTION"; |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 221 | } |
| 222 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 223 | first = false; |
| 224 | } |
| 225 | |
| 226 | out << ",\n"; |
| 227 | } |
| 228 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 229 | out << "CallCount\n"; |
| 230 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 231 | out.unindent(); |
| 232 | out << "};\n\n"; |
| 233 | |
| 234 | bool haveCallbacks = false; |
| 235 | for (const auto &method : iface->methods()) { |
| 236 | const bool returnsValue = !method->results().empty(); |
| 237 | |
| 238 | if (!returnsValue) { |
| 239 | continue; |
| 240 | } |
| 241 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 242 | if (method->canElideCallback() != nullptr) { |
| 243 | continue; |
| 244 | } |
| 245 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 246 | haveCallbacks = true; |
| 247 | |
| 248 | out << "using " |
| 249 | << method->name() |
| 250 | << "_cb = std::function<void(" |
| 251 | << Method::GetSignature(method->results()) |
| 252 | << ")>;\n"; |
| 253 | } |
| 254 | |
| 255 | if (haveCallbacks) { |
| 256 | out << "\n"; |
| 257 | } |
| 258 | |
| 259 | for (const auto &method : iface->methods()) { |
| 260 | const bool returnsValue = !method->results().empty(); |
| 261 | |
Andreas Huber | 3599d92 | 2016-08-09 10:42:57 -0700 | [diff] [blame] | 262 | method->dumpAnnotations(out); |
| 263 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 264 | const TypedVar *elidedReturn = method->canElideCallback(); |
| 265 | if (elidedReturn) { |
| 266 | std::string extra; |
Iliyan Malchev | 2b6591b | 2016-08-18 19:15:19 -0700 | [diff] [blame] | 267 | out << "virtual ::android::hardware::Return<"; |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 268 | out << elidedReturn->type().getCppResultType(&extra) << "> "; |
| 269 | } else { |
| 270 | out << "virtual ::android::hardware::Status "; |
| 271 | } |
| 272 | |
| 273 | out << method->name() |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 274 | << "(" |
| 275 | << Method::GetSignature(method->args()); |
| 276 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 277 | if (returnsValue && elidedReturn == nullptr) { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 278 | if (!method->args().empty()) { |
| 279 | out << ", "; |
| 280 | } |
| 281 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 282 | out << method->name() << "_cb _hidl_cb = nullptr"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | out << ") = 0;\n"; |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | if (isInterface) { |
| 290 | out.unindent(); |
| 291 | |
| 292 | out << "};\n"; |
| 293 | } |
| 294 | |
| 295 | out << "\n"; |
| 296 | enterLeaveNamespace(out, false /* enter */); |
| 297 | |
| 298 | out << "\n#endif // " << guard << "\n"; |
| 299 | |
| 300 | return OK; |
| 301 | } |
| 302 | |
| 303 | status_t AST::emitTypeDeclarations(Formatter &out) const { |
| 304 | return mRootScope->emitTypeDeclarations(out); |
| 305 | } |
| 306 | |
Iliyan Malchev | 62c3d18 | 2016-08-16 20:33:39 -0700 | [diff] [blame] | 307 | status_t AST::generateHeaderMethodSignatures( |
| 308 | Formatter &out, bool abstract) const { |
| 309 | const Interface *iface = mRootScope->getInterface(); |
| 310 | |
| 311 | std::vector<const Interface *> chain; |
| 312 | while (iface != NULL) { |
| 313 | chain.push_back(iface); |
| 314 | iface = iface->superType(); |
| 315 | } |
| 316 | |
| 317 | for (auto it = chain.rbegin(); it != chain.rend(); ++it) { |
| 318 | const Interface *superInterface = *it; |
| 319 | |
| 320 | out << "// Methods from " |
| 321 | << superInterface->fullName() |
| 322 | << " follow.\n"; |
| 323 | |
| 324 | for (const auto &method : superInterface->methods()) { |
| 325 | const bool returnsValue = !method->results().empty(); |
| 326 | |
| 327 | const TypedVar *elidedReturn = method->canElideCallback(); |
| 328 | |
| 329 | if (elidedReturn == nullptr) { |
| 330 | out << "::android::hardware::Status "; |
| 331 | } else { |
| 332 | std::string extra; |
Iliyan Malchev | 2b6591b | 2016-08-18 19:15:19 -0700 | [diff] [blame] | 333 | out << "::android::hardware::Return<"; |
Iliyan Malchev | 62c3d18 | 2016-08-16 20:33:39 -0700 | [diff] [blame] | 334 | out << elidedReturn->type().getCppResultType(&extra) << "> "; |
| 335 | } |
| 336 | out << method->name() |
| 337 | << "(" |
| 338 | << Method::GetSignature(method->args()); |
| 339 | |
| 340 | if (returnsValue && elidedReturn == nullptr) { |
| 341 | if (!method->args().empty()) { |
| 342 | out << ", "; |
| 343 | } |
| 344 | |
| 345 | out << method->name() << "_cb _hidl_cb"; |
| 346 | } |
| 347 | |
| 348 | out << ") "; |
| 349 | out << (abstract ? "= 0" : "override"); |
| 350 | out << ";\n"; |
| 351 | } |
| 352 | |
| 353 | out << "\n"; |
| 354 | } |
| 355 | |
| 356 | return OK; |
| 357 | } |
| 358 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 359 | status_t AST::generateStubHeader(const std::string &outputPath) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 360 | std::string ifaceName; |
| 361 | if (!AST::isInterface(&ifaceName)) { |
| 362 | // types.hal does not get a stub header. |
| 363 | return OK; |
| 364 | } |
| 365 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 366 | // cut off the leading 'I'. |
| 367 | const std::string baseName = ifaceName.substr(1); |
| 368 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 369 | std::string path = outputPath; |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 370 | path.append(mCoordinator->convertPackageRootToPath(mPackage)); |
Andreas Huber | dca261f | 2016-08-04 13:47:51 -0700 | [diff] [blame] | 371 | path.append(mCoordinator->getPackagePath(mPackage, true /* relative */)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 372 | path.append("Bn"); |
| 373 | path.append(baseName); |
| 374 | path.append(".h"); |
| 375 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 376 | CHECK(Coordinator::MakeParentHierarchy(path)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 377 | FILE *file = fopen(path.c_str(), "w"); |
| 378 | |
| 379 | if (file == NULL) { |
| 380 | return -errno; |
| 381 | } |
| 382 | |
| 383 | Formatter out(file); |
| 384 | |
| 385 | const std::string guard = makeHeaderGuard("Bn" + baseName); |
| 386 | |
| 387 | out << "#ifndef " << guard << "\n"; |
| 388 | out << "#define " << guard << "\n\n"; |
| 389 | |
| 390 | std::vector<std::string> packageComponents; |
| 391 | getPackageAndVersionComponents( |
| 392 | &packageComponents, false /* cpp_compatible */); |
| 393 | |
| 394 | out << "#include <"; |
| 395 | for (const auto &component : packageComponents) { |
| 396 | out << component << "/"; |
| 397 | } |
| 398 | out << ifaceName << ".h>\n\n"; |
| 399 | |
| 400 | enterLeaveNamespace(out, true /* enter */); |
| 401 | out << "\n"; |
| 402 | |
| 403 | out << "struct " |
| 404 | << "Bn" |
| 405 | << baseName |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 406 | << " : public ::android::hardware::BnInterface<" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 407 | << ifaceName |
| 408 | << "> {\n"; |
| 409 | |
| 410 | out.indent(); |
| 411 | |
| 412 | out << "::android::status_t onTransact(\n"; |
| 413 | out.indent(); |
| 414 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 415 | out << "uint32_t _hidl_code,\n"; |
| 416 | out << "const ::android::hardware::Parcel &_hidl_data,\n"; |
| 417 | out << "::android::hardware::Parcel *_hidl_reply,\n"; |
| 418 | out << "uint32_t _hidl_flags = 0,\n"; |
Iliyan Malchev | 62c3d18 | 2016-08-16 20:33:39 -0700 | [diff] [blame] | 419 | out << "TransactCallback _hidl_cb = nullptr) override;\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 420 | out.unindent(); |
| 421 | out.unindent(); |
| 422 | |
Iliyan Malchev | 62c3d18 | 2016-08-16 20:33:39 -0700 | [diff] [blame] | 423 | generateHeaderMethodSignatures(out, true); // = 0 |
| 424 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 425 | out.unindent(); |
| 426 | |
| 427 | out << "};\n\n"; |
| 428 | |
| 429 | enterLeaveNamespace(out, false /* enter */); |
| 430 | |
| 431 | out << "\n#endif // " << guard << "\n"; |
| 432 | |
| 433 | return OK; |
| 434 | } |
| 435 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 436 | status_t AST::generateProxyHeader(const std::string &outputPath) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 437 | std::string ifaceName; |
| 438 | if (!AST::isInterface(&ifaceName)) { |
| 439 | // types.hal does not get a proxy header. |
| 440 | return OK; |
| 441 | } |
| 442 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 443 | // cut off the leading 'I'. |
| 444 | const std::string baseName = ifaceName.substr(1); |
| 445 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 446 | std::string path = outputPath; |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 447 | path.append(mCoordinator->convertPackageRootToPath(mPackage)); |
Andreas Huber | dca261f | 2016-08-04 13:47:51 -0700 | [diff] [blame] | 448 | path.append(mCoordinator->getPackagePath(mPackage, true /* relative */)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 449 | path.append("Bp"); |
| 450 | path.append(baseName); |
| 451 | path.append(".h"); |
| 452 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 453 | CHECK(Coordinator::MakeParentHierarchy(path)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 454 | FILE *file = fopen(path.c_str(), "w"); |
| 455 | |
| 456 | if (file == NULL) { |
| 457 | return -errno; |
| 458 | } |
| 459 | |
| 460 | Formatter out(file); |
| 461 | |
| 462 | const std::string guard = makeHeaderGuard("Bp" + baseName); |
| 463 | |
| 464 | out << "#ifndef " << guard << "\n"; |
| 465 | out << "#define " << guard << "\n\n"; |
| 466 | |
| 467 | std::vector<std::string> packageComponents; |
| 468 | getPackageAndVersionComponents( |
| 469 | &packageComponents, false /* cpp_compatible */); |
| 470 | |
| 471 | out << "#include <"; |
| 472 | for (const auto &component : packageComponents) { |
| 473 | out << component << "/"; |
| 474 | } |
| 475 | out << ifaceName << ".h>\n\n"; |
| 476 | |
| 477 | enterLeaveNamespace(out, true /* enter */); |
| 478 | out << "\n"; |
| 479 | |
| 480 | out << "struct " |
| 481 | << "Bp" |
| 482 | << baseName |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 483 | << " : public ::android::hardware::BpInterface<" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 484 | << ifaceName |
| 485 | << "> {\n"; |
| 486 | |
| 487 | out.indent(); |
| 488 | |
| 489 | out << "explicit Bp" |
| 490 | << baseName |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 491 | << "(const ::android::sp<::android::hardware::IBinder> &_hidl_impl);" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 492 | << "\n\n"; |
| 493 | |
Iliyan Malchev | 62c3d18 | 2016-08-16 20:33:39 -0700 | [diff] [blame] | 494 | generateHeaderMethodSignatures(out, false); // override |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 495 | |
| 496 | out.unindent(); |
| 497 | |
| 498 | out << "};\n\n"; |
| 499 | |
| 500 | enterLeaveNamespace(out, false /* enter */); |
| 501 | |
| 502 | out << "\n#endif // " << guard << "\n"; |
| 503 | |
| 504 | return OK; |
| 505 | } |
| 506 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 507 | status_t AST::generateAllSource(const std::string &outputPath) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 508 | |
Andreas Huber | b82318c | 2016-08-02 14:45:54 -0700 | [diff] [blame] | 509 | std::string path = outputPath; |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 510 | path.append(mCoordinator->convertPackageRootToPath(mPackage)); |
Andreas Huber | dca261f | 2016-08-04 13:47:51 -0700 | [diff] [blame] | 511 | path.append(mCoordinator->getPackagePath(mPackage, true /* relative */)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 512 | |
| 513 | std::string ifaceName; |
| 514 | std::string baseName; |
| 515 | |
| 516 | bool isInterface = true; |
| 517 | if (!AST::isInterface(&ifaceName)) { |
| 518 | baseName = "types"; |
| 519 | isInterface = false; |
| 520 | } else { |
| 521 | baseName = ifaceName.substr(1); // cut off the leading 'I'. |
| 522 | } |
| 523 | |
| 524 | path.append(baseName); |
| 525 | |
| 526 | if (baseName != "types") { |
| 527 | path.append("All"); |
| 528 | } |
| 529 | |
| 530 | path.append(".cpp"); |
| 531 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 532 | CHECK(Coordinator::MakeParentHierarchy(path)); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 533 | FILE *file = fopen(path.c_str(), "w"); |
| 534 | |
| 535 | if (file == NULL) { |
| 536 | return -errno; |
| 537 | } |
| 538 | |
| 539 | Formatter out(file); |
| 540 | |
| 541 | std::vector<std::string> packageComponents; |
| 542 | getPackageAndVersionComponents( |
| 543 | &packageComponents, false /* cpp_compatible */); |
| 544 | |
| 545 | std::string prefix; |
| 546 | for (const auto &component : packageComponents) { |
| 547 | prefix += component; |
| 548 | prefix += "/"; |
| 549 | } |
| 550 | |
| 551 | if (isInterface) { |
| 552 | out << "#include <" << prefix << "/Bp" << baseName << ".h>\n"; |
| 553 | out << "#include <" << prefix << "/Bn" << baseName << ".h>\n"; |
| 554 | } else { |
| 555 | out << "#include <" << prefix << "types.h>\n"; |
| 556 | } |
| 557 | |
| 558 | out << "\n"; |
| 559 | |
| 560 | enterLeaveNamespace(out, true /* enter */); |
| 561 | out << "\n"; |
| 562 | |
| 563 | status_t err = generateTypeSource(out, ifaceName); |
| 564 | |
| 565 | if (err == OK && isInterface) { |
| 566 | err = generateProxySource(out, baseName); |
| 567 | } |
| 568 | |
| 569 | if (err == OK && isInterface) { |
| 570 | err = generateStubSource(out, baseName); |
| 571 | } |
| 572 | |
| 573 | enterLeaveNamespace(out, false /* enter */); |
| 574 | |
| 575 | return err; |
| 576 | } |
| 577 | |
| 578 | status_t AST::generateTypeSource( |
| 579 | Formatter &out, const std::string &ifaceName) const { |
| 580 | return mRootScope->emitTypeDefinitions(out, ifaceName); |
| 581 | } |
| 582 | |
Andreas Huber | e7ff228 | 2016-08-16 13:50:03 -0700 | [diff] [blame] | 583 | void AST::declareCppReaderLocals( |
| 584 | Formatter &out, const std::vector<TypedVar *> &args) const { |
| 585 | if (args.empty()) { |
| 586 | return; |
| 587 | } |
| 588 | |
| 589 | for (const auto &arg : args) { |
| 590 | const Type &type = arg->type(); |
| 591 | |
| 592 | std::string extra; |
| 593 | out << type.getCppResultType(&extra) |
| 594 | << " " |
| 595 | << arg->name() |
| 596 | << extra |
| 597 | << ";\n"; |
| 598 | } |
| 599 | |
| 600 | out << "\n"; |
| 601 | } |
| 602 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 603 | void AST::emitCppReaderWriter( |
| 604 | Formatter &out, |
| 605 | const std::string &parcelObj, |
| 606 | bool parcelObjIsPointer, |
| 607 | const TypedVar *arg, |
| 608 | bool isReader, |
| 609 | Type::ErrorMode mode) const { |
| 610 | const Type &type = arg->type(); |
| 611 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 612 | type.emitReaderWriter( |
| 613 | out, |
| 614 | arg->name(), |
| 615 | parcelObj, |
| 616 | parcelObjIsPointer, |
| 617 | isReader, |
| 618 | mode); |
| 619 | } |
| 620 | |
| 621 | status_t AST::generateProxySource( |
| 622 | Formatter &out, const std::string &baseName) const { |
| 623 | const std::string klassName = "Bp" + baseName; |
| 624 | |
| 625 | out << klassName |
| 626 | << "::" |
| 627 | << klassName |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 628 | << "(const ::android::sp<::android::hardware::IBinder> &_hidl_impl)\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 629 | |
| 630 | out.indent(); |
| 631 | out.indent(); |
| 632 | |
| 633 | out << ": BpInterface" |
| 634 | << "<I" |
| 635 | << baseName |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 636 | << ">(_hidl_impl) {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 637 | |
| 638 | out.unindent(); |
| 639 | out.unindent(); |
| 640 | out << "}\n\n"; |
| 641 | |
| 642 | const Interface *iface = mRootScope->getInterface(); |
| 643 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 644 | std::vector<const Interface *> chain; |
| 645 | while (iface != NULL) { |
| 646 | chain.push_back(iface); |
| 647 | iface = iface->superType(); |
| 648 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 649 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 650 | for (auto it = chain.rbegin(); it != chain.rend(); ++it) { |
| 651 | const Interface *superInterface = *it; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 652 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 653 | for (const auto &method : superInterface->methods()) { |
| 654 | const bool returnsValue = !method->results().empty(); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 655 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 656 | const TypedVar *elidedReturn = method->canElideCallback(); |
| 657 | if (elidedReturn) { |
| 658 | std::string extra; |
Iliyan Malchev | 2b6591b | 2016-08-18 19:15:19 -0700 | [diff] [blame] | 659 | out << "::android::hardware::Return<"; |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 660 | out << elidedReturn->type().getCppResultType(&extra) << "> "; |
| 661 | } else { |
| 662 | out << "::android::hardware::Status "; |
| 663 | } |
| 664 | |
| 665 | out << klassName |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 666 | << "::" |
| 667 | << method->name() |
| 668 | << "(" |
| 669 | << Method::GetSignature(method->args()); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 670 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 671 | if (returnsValue && elidedReturn == nullptr) { |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 672 | if (!method->args().empty()) { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 673 | out << ", "; |
| 674 | } |
| 675 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 676 | out << method->name() << "_cb _hidl_cb"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 677 | } |
| 678 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 679 | out << ") {\n"; |
| 680 | |
| 681 | out.indent(); |
| 682 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 683 | out << "::android::hardware::Parcel _hidl_data;\n"; |
| 684 | out << "::android::hardware::Parcel _hidl_reply;\n"; |
Andreas Huber | e7ff228 | 2016-08-16 13:50:03 -0700 | [diff] [blame] | 685 | out << "::android::status_t _hidl_err;\n"; |
| 686 | out << "::android::hardware::Status _hidl_status;\n\n"; |
| 687 | |
| 688 | declareCppReaderLocals(out, method->results()); |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 689 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 690 | out << "_hidl_err = _hidl_data.writeInterfaceToken(" |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 691 | << superInterface->fullName() |
| 692 | << "::getInterfaceDescriptor());\n"; |
| 693 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 694 | out << "if (_hidl_err != ::android::OK) { goto _hidl_error; }\n\n"; |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 695 | |
| 696 | for (const auto &arg : method->args()) { |
| 697 | emitCppReaderWriter( |
| 698 | out, |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 699 | "_hidl_data", |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 700 | false /* parcelObjIsPointer */, |
| 701 | arg, |
| 702 | false /* reader */, |
| 703 | Type::ErrorMode_Goto); |
| 704 | } |
| 705 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 706 | out << "_hidl_err = remote()->transact(I" |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 707 | << baseName |
| 708 | << "::" |
| 709 | << upcase(method->name()) |
Iliyan Malchev | 639bff8 | 2016-08-13 14:24:11 -0700 | [diff] [blame] | 710 | << ", _hidl_data, &_hidl_reply"; |
| 711 | if (method->isOneway()) { |
| 712 | out << ", ::android::hardware::IBinder::FLAG_ONEWAY"; |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 713 | } |
Iliyan Malchev | 639bff8 | 2016-08-13 14:24:11 -0700 | [diff] [blame] | 714 | out << ");\n"; |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 715 | |
Iliyan Malchev | 639bff8 | 2016-08-13 14:24:11 -0700 | [diff] [blame] | 716 | out << "if (_hidl_err != ::android::OK) { goto _hidl_error; }\n\n"; |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 717 | |
Iliyan Malchev | 639bff8 | 2016-08-13 14:24:11 -0700 | [diff] [blame] | 718 | if (!method->isOneway()) { |
| 719 | out << "_hidl_err = _hidl_status.readFromParcel(_hidl_reply);\n"; |
| 720 | out << "if (_hidl_err != ::android::OK) { goto _hidl_error; }\n\n"; |
Iliyan Malchev | 639bff8 | 2016-08-13 14:24:11 -0700 | [diff] [blame] | 721 | out << "if (!_hidl_status.isOk()) { return _hidl_status; }\n\n"; |
| 722 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 723 | for (const auto &arg : method->results()) { |
Iliyan Malchev | 639bff8 | 2016-08-13 14:24:11 -0700 | [diff] [blame] | 724 | emitCppReaderWriter( |
| 725 | out, |
| 726 | "_hidl_reply", |
| 727 | false /* parcelObjIsPointer */, |
| 728 | arg, |
| 729 | true /* reader */, |
| 730 | Type::ErrorMode_Goto); |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 731 | } |
| 732 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 733 | if (returnsValue && elidedReturn == nullptr) { |
Iliyan Malchev | 639bff8 | 2016-08-13 14:24:11 -0700 | [diff] [blame] | 734 | out << "if (_hidl_cb != nullptr) {\n"; |
| 735 | out.indent(); |
| 736 | out << "_hidl_cb("; |
| 737 | |
| 738 | bool first = true; |
| 739 | for (const auto &arg : method->results()) { |
| 740 | if (!first) { |
| 741 | out << ", "; |
| 742 | } |
| 743 | |
| 744 | if (arg->type().resultNeedsDeref()) { |
| 745 | out << "*"; |
| 746 | } |
| 747 | out << arg->name(); |
| 748 | |
| 749 | first = false; |
| 750 | } |
| 751 | |
| 752 | out << ");\n"; |
| 753 | out.unindent(); |
| 754 | out << "}\n\n"; |
| 755 | } |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 756 | } |
| 757 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 758 | if (elidedReturn != nullptr) { |
| 759 | std::string extra; |
| 760 | |
| 761 | out << "_hidl_status.setFromStatusT(_hidl_err);\n"; |
Iliyan Malchev | 2b6591b | 2016-08-18 19:15:19 -0700 | [diff] [blame] | 762 | out << "return ::android::hardware::Return<"; |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 763 | out << elidedReturn->type().getCppResultType(&extra) |
| 764 | << ">(" << elidedReturn->name() << ");\n\n"; |
| 765 | |
| 766 | out.unindent(); |
| 767 | out << "_hidl_error:\n"; |
| 768 | out.indent(); |
| 769 | out << "_hidl_status.setFromStatusT(_hidl_err);\n"; |
Iliyan Malchev | 2b6591b | 2016-08-18 19:15:19 -0700 | [diff] [blame] | 770 | out << "return ::android::hardware::Return<"; |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 771 | out << method->results().at(0)->type().getCppResultType(&extra) |
| 772 | << ">(_hidl_status);\n"; |
| 773 | } else { |
| 774 | out.unindent(); |
| 775 | out << "_hidl_error:\n"; |
| 776 | out.indent(); |
| 777 | out << "_hidl_status.setFromStatusT(_hidl_err);\n"; |
| 778 | out << "return _hidl_status;\n"; |
| 779 | } |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 780 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 781 | out.unindent(); |
| 782 | out << "}\n\n"; |
| 783 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 784 | } |
| 785 | |
| 786 | return OK; |
| 787 | } |
| 788 | |
| 789 | status_t AST::generateStubSource( |
| 790 | Formatter &out, const std::string &baseName) const { |
| 791 | out << "IMPLEMENT_HWBINDER_META_INTERFACE(" |
| 792 | << baseName |
| 793 | << ", \"" |
| 794 | << mPackage.string() |
| 795 | << "::I" |
| 796 | << baseName |
| 797 | << "\");\n\n"; |
| 798 | |
| 799 | const std::string klassName = "Bn" + baseName; |
| 800 | |
| 801 | out << "::android::status_t " << klassName << "::onTransact(\n"; |
| 802 | |
| 803 | out.indent(); |
| 804 | out.indent(); |
| 805 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 806 | out << "uint32_t _hidl_code,\n" |
| 807 | << "const ::android::hardware::Parcel &_hidl_data,\n" |
| 808 | << "::android::hardware::Parcel *_hidl_reply,\n" |
| 809 | << "uint32_t _hidl_flags,\n" |
| 810 | << "TransactCallback _hidl_cb) {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 811 | |
| 812 | out.unindent(); |
| 813 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 814 | out << "::android::status_t _hidl_err = ::android::OK;\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 815 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 816 | out << "switch (_hidl_code) {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 817 | out.indent(); |
| 818 | |
| 819 | const Interface *iface = mRootScope->getInterface(); |
| 820 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 821 | std::vector<const Interface *> chain; |
| 822 | while (iface != NULL) { |
| 823 | chain.push_back(iface); |
| 824 | iface = iface->superType(); |
| 825 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 826 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 827 | for (auto it = chain.rbegin(); it != chain.rend(); ++it) { |
| 828 | const Interface *superInterface = *it; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 829 | |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 830 | for (const auto &method : superInterface->methods()) { |
| 831 | out << "case " |
| 832 | << superInterface->fullName() |
| 833 | << "::Call::" |
| 834 | << upcase(method->name()) |
| 835 | << ":\n{\n"; |
| 836 | |
| 837 | out.indent(); |
| 838 | |
| 839 | status_t err = |
| 840 | generateStubSourceForMethod(out, superInterface, method); |
| 841 | |
| 842 | if (err != OK) { |
| 843 | return err; |
| 844 | } |
| 845 | |
| 846 | out.unindent(); |
| 847 | out << "}\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 848 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 849 | } |
| 850 | |
| 851 | out << "default:\n{\n"; |
| 852 | out.indent(); |
| 853 | |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 854 | out << "return ::android::hardware::BnInterface<I" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 855 | << baseName |
| 856 | << ">::onTransact(\n"; |
| 857 | |
| 858 | out.indent(); |
| 859 | out.indent(); |
| 860 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 861 | out << "_hidl_code, _hidl_data, _hidl_reply, " |
| 862 | << "_hidl_flags, _hidl_cb);\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 863 | |
| 864 | out.unindent(); |
| 865 | out.unindent(); |
| 866 | |
| 867 | out.unindent(); |
| 868 | out << "}\n"; |
| 869 | |
| 870 | out.unindent(); |
| 871 | out << "}\n\n"; |
| 872 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 873 | out << "if (_hidl_err == ::android::UNEXPECTED_NULL) {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 874 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 875 | out << "_hidl_err = ::android::hardware::Status::fromExceptionCode(\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 876 | out.indent(); |
| 877 | out.indent(); |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 878 | out << "::android::hardware::Status::EX_NULL_POINTER)\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 879 | out.indent(); |
| 880 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 881 | out << ".writeToParcel(_hidl_reply);\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 882 | out.unindent(); |
| 883 | out.unindent(); |
| 884 | out.unindent(); |
| 885 | out.unindent(); |
| 886 | |
| 887 | out.unindent(); |
| 888 | out << "}\n\n"; |
| 889 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 890 | out << "return _hidl_err;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 891 | |
| 892 | out.unindent(); |
| 893 | out << "}\n\n"; |
| 894 | |
| 895 | return OK; |
| 896 | } |
| 897 | |
| 898 | status_t AST::generateStubSourceForMethod( |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 899 | Formatter &out, const Interface *iface, const Method *method) const { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 900 | out << "if (!_hidl_data.enforceInterface(" |
Andreas Huber | 6cb08cf | 2016-08-03 15:44:51 -0700 | [diff] [blame] | 901 | << iface->fullName() |
| 902 | << "::getInterfaceDescriptor())) {\n"; |
| 903 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 904 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 905 | out << "_hidl_err = ::android::BAD_TYPE;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 906 | out << "break;\n"; |
| 907 | out.unindent(); |
| 908 | out << "}\n\n"; |
| 909 | |
Andreas Huber | e7ff228 | 2016-08-16 13:50:03 -0700 | [diff] [blame] | 910 | declareCppReaderLocals(out, method->args()); |
| 911 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 912 | for (const auto &arg : method->args()) { |
| 913 | emitCppReaderWriter( |
| 914 | out, |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 915 | "_hidl_data", |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 916 | false /* parcelObjIsPointer */, |
| 917 | arg, |
| 918 | true /* reader */, |
| 919 | Type::ErrorMode_Break); |
| 920 | } |
| 921 | |
| 922 | const bool returnsValue = !method->results().empty(); |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 923 | const TypedVar *elidedReturn = method->canElideCallback(); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 924 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 925 | if (elidedReturn != nullptr) { |
| 926 | std::string extra; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 927 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 928 | out << elidedReturn->type().getCppResultType(&extra) << " "; |
| 929 | out << elidedReturn->name() << " = "; |
| 930 | out << method->name() << "("; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 931 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 932 | bool first = true; |
| 933 | for (const auto &arg : method->args()) { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 934 | if (!first) { |
| 935 | out << ", "; |
| 936 | } |
| 937 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 938 | if (arg->type().resultNeedsDeref()) { |
| 939 | out << "*"; |
| 940 | } |
| 941 | |
| 942 | out << arg->name(); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 943 | |
| 944 | first = false; |
| 945 | } |
| 946 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 947 | out << ");\n\n"; |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 948 | out << "::android::hardware::Status::ok()" |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 949 | << ".writeToParcel(_hidl_reply);\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 950 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 951 | elidedReturn->type().emitReaderWriter( |
| 952 | out, |
| 953 | elidedReturn->name(), |
| 954 | "_hidl_reply", |
| 955 | true, /* parcelObjIsPointer */ |
| 956 | false, /* isReader */ |
| 957 | Type::ErrorMode_Ignore); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 958 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 959 | out << "_hidl_cb(*_hidl_reply);\n"; |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 960 | } else { |
| 961 | if (returnsValue) { |
| 962 | out << "bool _hidl_callbackCalled = false;\n\n"; |
| 963 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 964 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 965 | out << "::android::hardware::Status _hidl_status(\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 966 | out.indent(); |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 967 | out.indent(); |
| 968 | out << method->name() << "("; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 969 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 970 | bool first = true; |
| 971 | for (const auto &arg : method->args()) { |
| 972 | if (!first) { |
| 973 | out << ", "; |
| 974 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 975 | |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 976 | if (arg->type().resultNeedsDeref()) { |
| 977 | out << "*"; |
| 978 | } |
| 979 | |
| 980 | out << arg->name(); |
| 981 | |
| 982 | first = false; |
| 983 | } |
| 984 | |
| 985 | if (returnsValue) { |
| 986 | if (!first) { |
| 987 | out << ", "; |
| 988 | } |
| 989 | |
| 990 | out << "[&]("; |
| 991 | |
| 992 | first = true; |
| 993 | for (const auto &arg : method->results()) { |
| 994 | if (!first) { |
| 995 | out << ", "; |
| 996 | } |
| 997 | |
| 998 | out << "const auto &" << arg->name(); |
| 999 | |
| 1000 | first = false; |
| 1001 | } |
| 1002 | |
| 1003 | out << ") {\n"; |
| 1004 | out.indent(); |
| 1005 | out << "_hidl_callbackCalled = true;\n\n"; |
| 1006 | |
| 1007 | out << "::android::hardware::Status::ok()" |
| 1008 | << ".writeToParcel(_hidl_reply);\n\n"; |
| 1009 | |
| 1010 | for (const auto &arg : method->results()) { |
| 1011 | emitCppReaderWriter( |
| 1012 | out, |
| 1013 | "_hidl_reply", |
| 1014 | true /* parcelObjIsPointer */, |
| 1015 | arg, |
| 1016 | false /* reader */, |
| 1017 | Type::ErrorMode_Ignore); |
| 1018 | } |
| 1019 | |
| 1020 | out << "_hidl_cb(*_hidl_reply);\n"; |
| 1021 | |
| 1022 | out.unindent(); |
| 1023 | out << "}\n"; |
| 1024 | } |
| 1025 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 1026 | out.unindent(); |
Iliyan Malchev | 40d474a | 2016-08-16 06:20:17 -0700 | [diff] [blame] | 1027 | out.unindent(); |
| 1028 | out << "));\n\n"; |
| 1029 | |
| 1030 | if (returnsValue) { |
| 1031 | out << "if (!_hidl_callbackCalled) {\n"; |
| 1032 | out.indent(); |
| 1033 | } |
| 1034 | |
| 1035 | out << "_hidl_err = _hidl_status.writeToParcel(_hidl_reply);\n"; |
| 1036 | |
| 1037 | if (returnsValue) { |
| 1038 | out.unindent(); |
| 1039 | out << "}\n\n"; |
| 1040 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 1041 | } |
| 1042 | |
| 1043 | out << "break;\n"; |
| 1044 | |
| 1045 | return OK; |
| 1046 | } |
| 1047 | |
| 1048 | } // namespace android |
| 1049 | |