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 | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 17 | #include "CompoundType.h" |
| 18 | |
Yifan Hong | ec10227 | 2016-12-20 18:10:07 -0800 | [diff] [blame^] | 19 | #include "ArrayType.h" |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 20 | #include "VectorType.h" |
Iliyan Malchev | a72e0d2 | 2016-09-09 11:03:08 -0700 | [diff] [blame] | 21 | #include <hidl-util/Formatter.h> |
Andreas Huber | 5a54544 | 2016-08-03 10:44:56 -0700 | [diff] [blame] | 22 | #include <android-base/logging.h> |
| 23 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 24 | namespace android { |
| 25 | |
Yifan Hong | a4b53d0 | 2016-10-31 17:29:10 -0700 | [diff] [blame] | 26 | CompoundType::CompoundType(Style style, const char *localName, const Location &location) |
| 27 | : Scope(localName, location), |
Andreas Huber | 9ed827c | 2016-08-22 12:31:13 -0700 | [diff] [blame] | 28 | mStyle(style), |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 29 | mFields(NULL) { |
| 30 | } |
| 31 | |
Yifan Hong | 27e85db | 2016-11-09 15:45:52 -0800 | [diff] [blame] | 32 | CompoundType::Style CompoundType::style() const { |
| 33 | return mStyle; |
| 34 | } |
| 35 | |
Andreas Huber | 0d0f9a2 | 2016-08-17 10:26:11 -0700 | [diff] [blame] | 36 | bool CompoundType::setFields( |
| 37 | std::vector<CompoundField *> *fields, std::string *errorMsg) { |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 38 | mFields = fields; |
Andreas Huber | 5a54544 | 2016-08-03 10:44:56 -0700 | [diff] [blame] | 39 | |
| 40 | for (const auto &field : *fields) { |
| 41 | const Type &type = field->type(); |
| 42 | |
Andreas Huber | 86a112b | 2016-10-19 14:25:16 -0700 | [diff] [blame] | 43 | if (type.isBinder() |
| 44 | || (type.isVector() |
| 45 | && static_cast<const VectorType *>( |
| 46 | &type)->isVectorOfBinders())) { |
Andreas Huber | 0d0f9a2 | 2016-08-17 10:26:11 -0700 | [diff] [blame] | 47 | *errorMsg = |
| 48 | "Structs/Unions must not contain references to interfaces."; |
Andreas Huber | b95ea8a | 2016-08-15 15:35:42 -0700 | [diff] [blame] | 49 | |
| 50 | return false; |
| 51 | } |
| 52 | |
Andreas Huber | 5a54544 | 2016-08-03 10:44:56 -0700 | [diff] [blame] | 53 | if (mStyle == STYLE_UNION) { |
| 54 | if (type.needsEmbeddedReadWrite()) { |
| 55 | // Can't have those in a union. |
| 56 | |
Andreas Huber | 0d0f9a2 | 2016-08-17 10:26:11 -0700 | [diff] [blame] | 57 | *errorMsg = |
| 58 | "Unions must not contain any types that need fixup."; |
Andreas Huber | 5a54544 | 2016-08-03 10:44:56 -0700 | [diff] [blame] | 59 | |
| 60 | return false; |
| 61 | } |
Andreas Huber | 5a54544 | 2016-08-03 10:44:56 -0700 | [diff] [blame] | 62 | } |
| 63 | } |
| 64 | |
| 65 | return true; |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 66 | } |
| 67 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 68 | bool CompoundType::isCompoundType() const { |
| 69 | return true; |
| 70 | } |
| 71 | |
Yifan Hong | c6752dc | 2016-12-20 14:00:14 -0800 | [diff] [blame] | 72 | bool CompoundType::canCheckEquality() const { |
| 73 | if (mStyle == STYLE_UNION) { |
| 74 | return false; |
| 75 | } |
| 76 | for (const auto &field : *mFields) { |
| 77 | if (!field->type().canCheckEquality()) { |
| 78 | return false; |
| 79 | } |
| 80 | } |
| 81 | return true; |
| 82 | } |
| 83 | |
| 84 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 85 | std::string CompoundType::getCppType( |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 86 | StorageMode mode, |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 87 | bool specifyNamespaces) const { |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 88 | const std::string base = |
| 89 | specifyNamespaces ? fullName() : partialCppName(); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 90 | |
| 91 | switch (mode) { |
| 92 | case StorageMode_Stack: |
| 93 | return base; |
| 94 | |
| 95 | case StorageMode_Argument: |
| 96 | return "const " + base + "&"; |
| 97 | |
| 98 | case StorageMode_Result: |
| 99 | return "const " + base + "*"; |
| 100 | } |
| 101 | } |
| 102 | |
Yifan Hong | 4ed1347 | 2016-11-02 10:44:11 -0700 | [diff] [blame] | 103 | std::string CompoundType::getJavaType(bool /* forInitializer */) const { |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 104 | return fullJavaName(); |
| 105 | } |
| 106 | |
Zhuoyao Zhang | c5ea9f5 | 2016-10-06 15:05:39 -0700 | [diff] [blame] | 107 | std::string CompoundType::getVtsType() const { |
| 108 | switch (mStyle) { |
| 109 | case STYLE_STRUCT: |
| 110 | { |
| 111 | return "TYPE_STRUCT"; |
| 112 | } |
| 113 | case STYLE_UNION: |
| 114 | { |
| 115 | return "TYPE_UNION"; |
| 116 | } |
| 117 | } |
| 118 | } |
| 119 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 120 | void CompoundType::emitReaderWriter( |
| 121 | Formatter &out, |
| 122 | const std::string &name, |
| 123 | const std::string &parcelObj, |
| 124 | bool parcelObjIsPointer, |
| 125 | bool isReader, |
| 126 | ErrorMode mode) const { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 127 | const std::string parentName = "_hidl_" + name + "_parent"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 128 | |
| 129 | out << "size_t " << parentName << ";\n\n"; |
| 130 | |
| 131 | const std::string parcelObjDeref = |
| 132 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 133 | |
| 134 | if (isReader) { |
| 135 | out << name |
| 136 | << " = (const " |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 137 | << fullName() |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 138 | << " *)" |
| 139 | << parcelObjDeref |
| 140 | << "readBuffer(" |
| 141 | << "&" |
| 142 | << parentName |
| 143 | << ");\n"; |
| 144 | |
| 145 | out << "if (" |
| 146 | << name |
| 147 | << " == nullptr) {\n"; |
| 148 | |
Yifan Hong | 33223ca | 2016-12-13 15:07:35 -0800 | [diff] [blame] | 149 | out.indent([&]{ |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 150 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
| 151 | handleError2(out, mode); |
| 152 | }); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 153 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 154 | out << "}\n\n"; |
| 155 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 156 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 157 | << parcelObjDeref |
| 158 | << "writeBuffer(&" |
| 159 | << name |
| 160 | << ", sizeof(" |
| 161 | << name |
| 162 | << "), &" |
| 163 | << parentName |
| 164 | << ");\n"; |
| 165 | |
| 166 | handleError(out, mode); |
| 167 | } |
| 168 | |
| 169 | if (mStyle != STYLE_STRUCT || !needsEmbeddedReadWrite()) { |
| 170 | return; |
| 171 | } |
| 172 | |
| 173 | emitReaderWriterEmbedded( |
| 174 | out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 175 | 0 /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 176 | name, |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 177 | name, /* sanitizedName */ |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 178 | isReader /* nameIsPointer */, |
| 179 | parcelObj, |
| 180 | parcelObjIsPointer, |
| 181 | isReader, |
| 182 | mode, |
| 183 | parentName, |
| 184 | "0 /* parentOffset */"); |
| 185 | } |
| 186 | |
| 187 | void CompoundType::emitReaderWriterEmbedded( |
| 188 | Formatter &out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 189 | size_t /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 190 | const std::string &name, |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 191 | const std::string & /*sanitizedName */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 192 | bool nameIsPointer, |
| 193 | const std::string &parcelObj, |
| 194 | bool parcelObjIsPointer, |
| 195 | bool isReader, |
| 196 | ErrorMode mode, |
| 197 | const std::string &parentName, |
| 198 | const std::string &offsetText) const { |
| 199 | emitReaderWriterEmbeddedForTypeName( |
| 200 | out, |
| 201 | name, |
| 202 | nameIsPointer, |
| 203 | parcelObj, |
| 204 | parcelObjIsPointer, |
| 205 | isReader, |
| 206 | mode, |
| 207 | parentName, |
| 208 | offsetText, |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 209 | fullName(), |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 210 | "" /* childName */, |
| 211 | "" /* namespace */); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 212 | } |
| 213 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 214 | void CompoundType::emitJavaReaderWriter( |
| 215 | Formatter &out, |
| 216 | const std::string &parcelObj, |
| 217 | const std::string &argName, |
| 218 | bool isReader) const { |
| 219 | if (isReader) { |
| 220 | out << "new " << fullJavaName() << "();\n"; |
| 221 | } |
| 222 | |
| 223 | out << argName |
| 224 | << "." |
| 225 | << (isReader ? "readFromParcel" : "writeToParcel") |
| 226 | << "(" |
| 227 | << parcelObj |
| 228 | << ");\n"; |
| 229 | } |
| 230 | |
| 231 | void CompoundType::emitJavaFieldInitializer( |
| 232 | Formatter &out, const std::string &fieldName) const { |
| 233 | out << "final " |
| 234 | << fullJavaName() |
| 235 | << " " |
| 236 | << fieldName |
| 237 | << " = new " |
| 238 | << fullJavaName() |
| 239 | << "();\n"; |
| 240 | } |
| 241 | |
| 242 | void CompoundType::emitJavaFieldReaderWriter( |
| 243 | Formatter &out, |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 244 | size_t /* depth */, |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 245 | const std::string &parcelName, |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 246 | const std::string &blobName, |
| 247 | const std::string &fieldName, |
| 248 | const std::string &offset, |
| 249 | bool isReader) const { |
| 250 | if (isReader) { |
| 251 | out << fieldName |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 252 | << ".readEmbeddedFromParcel(" |
| 253 | << parcelName |
| 254 | << ", " |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 255 | << blobName |
| 256 | << ", " |
| 257 | << offset |
| 258 | << ");\n"; |
| 259 | |
| 260 | return; |
| 261 | } |
| 262 | |
| 263 | out << fieldName |
| 264 | << ".writeEmbeddedToBlob(" |
| 265 | << blobName |
| 266 | << ", " |
| 267 | << offset |
| 268 | << ");\n"; |
| 269 | } |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 270 | void CompoundType::emitResolveReferences( |
| 271 | Formatter &out, |
| 272 | const std::string &name, |
| 273 | bool nameIsPointer, |
| 274 | const std::string &parcelObj, |
| 275 | bool parcelObjIsPointer, |
| 276 | bool isReader, |
| 277 | ErrorMode mode) const { |
| 278 | emitResolveReferencesEmbedded( |
| 279 | out, |
| 280 | 0 /* depth */, |
| 281 | name, |
| 282 | name /* sanitizedName */, |
| 283 | nameIsPointer, |
| 284 | parcelObj, |
| 285 | parcelObjIsPointer, |
| 286 | isReader, |
| 287 | mode, |
| 288 | "_hidl_" + name + "_parent", |
| 289 | "0 /* parentOffset */"); |
| 290 | } |
| 291 | |
| 292 | void CompoundType::emitResolveReferencesEmbedded( |
| 293 | Formatter &out, |
| 294 | size_t /* depth */, |
| 295 | const std::string &name, |
| 296 | const std::string &/* sanitizedName */, |
| 297 | bool nameIsPointer, |
| 298 | const std::string &parcelObj, |
| 299 | bool parcelObjIsPointer, |
| 300 | bool isReader, |
| 301 | ErrorMode mode, |
| 302 | const std::string &parentName, |
| 303 | const std::string &offsetText) const { |
| 304 | CHECK(needsResolveReferences()); |
| 305 | |
| 306 | const std::string parcelObjDeref = |
| 307 | parcelObjIsPointer ? ("*" + parcelObj) : parcelObj; |
| 308 | |
| 309 | const std::string parcelObjPointer = |
| 310 | parcelObjIsPointer ? parcelObj : ("&" + parcelObj); |
| 311 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 312 | const std::string nameDerefed = nameIsPointer ? ("*" + name) : name; |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 313 | const std::string namePointer = nameIsPointer ? name : ("&" + name); |
| 314 | |
| 315 | out << "_hidl_err = "; |
| 316 | |
| 317 | if (isReader) { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 318 | out << "readEmbeddedReferenceFromParcel(\n"; |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 319 | } else { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 320 | out << "writeEmbeddedReferenceToParcel(\n"; |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 321 | } |
| 322 | |
Yifan Hong | 33223ca | 2016-12-13 15:07:35 -0800 | [diff] [blame] | 323 | out.indent(2, [&]{ |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 324 | if (isReader) { |
| 325 | out << "const_cast<" |
| 326 | << fullName() |
| 327 | << " *" |
| 328 | << ">(" |
| 329 | << namePointer |
| 330 | << "),\n" |
| 331 | << parcelObjDeref; |
| 332 | } else { |
| 333 | out << nameDerefed |
| 334 | << ",\n" |
| 335 | << parcelObjPointer; |
| 336 | } |
| 337 | |
| 338 | out << ",\n" |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 339 | << parentName |
| 340 | << ",\n" |
| 341 | << offsetText |
| 342 | << ");\n\n"; |
| 343 | }); |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 344 | |
| 345 | handleError(out, mode); |
| 346 | } |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 347 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 348 | status_t CompoundType::emitTypeDeclarations(Formatter &out) const { |
| 349 | out << ((mStyle == STYLE_STRUCT) ? "struct" : "union") |
| 350 | << " " |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 351 | << localName() |
Yifan Hong | b1d2ebc | 2016-12-20 17:18:07 -0800 | [diff] [blame] | 352 | << " final {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 353 | |
| 354 | out.indent(); |
| 355 | |
| 356 | Scope::emitTypeDeclarations(out); |
| 357 | |
| 358 | for (const auto &field : *mFields) { |
Martijn Coenen | 2f69a5b | 2016-11-18 15:26:38 +0100 | [diff] [blame] | 359 | out << field->type().getCppStackType() |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 360 | << " " |
| 361 | << field->name() |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 362 | << ";\n"; |
| 363 | } |
| 364 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 365 | out.unindent(); |
| 366 | out << "};\n\n"; |
| 367 | |
| 368 | return OK; |
| 369 | } |
| 370 | |
| 371 | |
Yifan Hong | c6752dc | 2016-12-20 14:00:14 -0800 | [diff] [blame] | 372 | status_t CompoundType::emitGlobalTypeDeclarations(Formatter &out) const { |
| 373 | Scope::emitGlobalTypeDeclarations(out); |
| 374 | |
| 375 | if (!canCheckEquality()) { |
| 376 | return OK; |
| 377 | } |
| 378 | |
| 379 | out << "inline bool operator==(" |
| 380 | << getCppArgumentType() << " " << (mFields->empty() ? "/* lhs */" : "lhs") << ", " |
| 381 | << getCppArgumentType() << " " << (mFields->empty() ? "/* rhs */" : "rhs") << ") "; |
| 382 | out.block([&] { |
| 383 | for (const auto &field : *mFields) { |
| 384 | out.sIf("lhs." + field->name() + " != rhs." + field->name(), [&] { |
| 385 | out << "return false;\n"; |
| 386 | }).endl(); |
| 387 | } |
| 388 | out << "return true;\n"; |
| 389 | }).endl().endl(); |
| 390 | |
| 391 | out << "inline bool operator!=(" |
| 392 | << getCppArgumentType() << " lhs," << getCppArgumentType() << " rhs)"; |
| 393 | out.block([&] { |
| 394 | out << "return !(lhs == rhs);\n"; |
| 395 | }).endl().endl(); |
| 396 | |
| 397 | return OK; |
| 398 | } |
| 399 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 400 | status_t CompoundType::emitGlobalHwDeclarations(Formatter &out) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 401 | if (needsEmbeddedReadWrite()) { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 402 | out << "::android::status_t readEmbeddedFromParcel(\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 403 | |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 404 | out.indent(2); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 405 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 406 | out << fullName() << " *obj,\n" |
| 407 | << "const ::android::hardware::Parcel &parcel,\n" |
| 408 | << "size_t parentHandle,\n" |
| 409 | << "size_t parentOffset);\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 410 | |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 411 | out.unindent(2); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 412 | |
| 413 | out << "::android::status_t writeEmbeddedToParcel(\n"; |
| 414 | |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 415 | out.indent(2); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 416 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 417 | out << "const " << fullName() << " &obj,\n" |
| 418 | << "::android::hardware::Parcel *parcel,\n" |
| 419 | << "size_t parentHandle,\n" |
| 420 | << "size_t parentOffset);\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 421 | |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 422 | out.unindent(2); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 423 | } |
| 424 | |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 425 | if(needsResolveReferences()) { |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 426 | out << "::android::status_t readEmbeddedReferenceFromParcel(\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 427 | out.indent(2); |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 428 | out << fullName() << " *obj,\n" |
| 429 | << "const ::android::hardware::Parcel &parcel,\n" |
| 430 | << "size_t parentHandle, size_t parentOffset);\n\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 431 | out.unindent(2); |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 432 | out << "::android::status_t writeEmbeddedReferenceToParcel(\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 433 | out.indent(2); |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 434 | out << "const " << fullName() << " &obj,\n" |
| 435 | << "::android::hardware::Parcel *,\n" |
| 436 | << "size_t parentHandle, size_t parentOffset);\n\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 437 | out.unindent(2); |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 438 | } |
| 439 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 440 | return OK; |
| 441 | } |
| 442 | |
| 443 | status_t CompoundType::emitTypeDefinitions( |
| 444 | Formatter &out, const std::string prefix) const { |
Steven Moreland | b158de1 | 2016-10-10 11:59:09 -0700 | [diff] [blame] | 445 | std::string space = prefix.empty() ? "" : (prefix + "::"); |
| 446 | status_t err = Scope::emitTypeDefinitions(out, space + localName()); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 447 | |
| 448 | if (err != OK) { |
| 449 | return err; |
| 450 | } |
| 451 | |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 452 | if (needsEmbeddedReadWrite()) { |
| 453 | emitStructReaderWriter(out, prefix, true /* isReader */); |
| 454 | emitStructReaderWriter(out, prefix, false /* isReader */); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 455 | } |
| 456 | |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 457 | if (needsResolveReferences()) { |
| 458 | emitResolveReferenceDef(out, prefix, true /* isReader */); |
| 459 | emitResolveReferenceDef(out, prefix, false /* isReader */); |
| 460 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 461 | |
| 462 | return OK; |
| 463 | } |
| 464 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 465 | status_t CompoundType::emitJavaTypeDeclarations( |
| 466 | Formatter &out, bool atTopLevel) const { |
| 467 | out << "public final "; |
| 468 | |
| 469 | if (!atTopLevel) { |
| 470 | out << "static "; |
| 471 | } |
| 472 | |
| 473 | out << "class " |
| 474 | << localName() |
| 475 | << " {\n"; |
| 476 | |
| 477 | out.indent(); |
| 478 | |
| 479 | Scope::emitJavaTypeDeclarations(out, false /* atTopLevel */); |
| 480 | |
| 481 | for (const auto &field : *mFields) { |
| 482 | const bool isScope = field->type().isScope(); // really isStruct... |
| 483 | |
| 484 | out << "public "; |
| 485 | |
| 486 | field->type().emitJavaFieldInitializer(out, field->name()); |
| 487 | } |
| 488 | |
| 489 | if (!mFields->empty()) { |
| 490 | out << "\n"; |
| 491 | } |
| 492 | |
Yifan Hong | ec10227 | 2016-12-20 18:10:07 -0800 | [diff] [blame^] | 493 | //////////////////////////////////////////////////////////////////////////// |
| 494 | |
| 495 | if (canCheckEquality()) { |
| 496 | out << "public final boolean equals(" << localName() << " other) "; |
| 497 | out.block([&] { |
| 498 | for (const auto &field : *mFields) { |
| 499 | std::string condition = field->type().isScalar() |
| 500 | ? "this." + field->name() + " != other." + field->name() |
| 501 | : ("!java.util.Objects.deepEquals(this." + field->name() |
| 502 | + ", other." + field->name() + ")"); |
| 503 | out.sIf(condition, [&] { |
| 504 | out << "return false;\n"; |
| 505 | }).endl(); |
| 506 | } |
| 507 | out << "return true;\n"; |
| 508 | }).endl().endl(); |
| 509 | |
| 510 | out << "public final int hashCode() "; |
| 511 | out.block([&] { |
| 512 | out << "return java.util.Objects.hash("; |
| 513 | bool first = true; |
| 514 | for (const auto &field : *mFields) { |
| 515 | if (!first) { |
| 516 | out << ", "; |
| 517 | } |
| 518 | first = false; |
| 519 | if (field->type().isArray()) { |
| 520 | const ArrayType &type = static_cast<const ArrayType &>(field->type()); |
| 521 | if (type.countDimensions() == 1 && |
| 522 | type.getElementType()->resolveToScalarType() != nullptr) { |
| 523 | out << "java.util.Arrays.hashCode(this." << field->name() << ")"; |
| 524 | } else { |
| 525 | out << "java.util.Arrays.deepHashCode(this." << field->name() << ")"; |
| 526 | } |
| 527 | } else { |
| 528 | out << "this." << field->name(); |
| 529 | } |
| 530 | } |
| 531 | out << ");\n"; |
| 532 | }).endl().endl(); |
| 533 | } |
| 534 | |
| 535 | //////////////////////////////////////////////////////////////////////////// |
| 536 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 537 | out << "public final void readFromParcel(android.os.HwParcel parcel) {\n"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 538 | out.indent(); |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 539 | out << "android.os.HwBlob blob = parcel.readBuffer();\n"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 540 | out << "readEmbeddedFromParcel(parcel, blob, 0 /* parentOffset */);\n"; |
| 541 | out.unindent(); |
| 542 | out << "}\n\n"; |
| 543 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 544 | //////////////////////////////////////////////////////////////////////////// |
| 545 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 546 | out << "public static final java.util.ArrayList<" |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 547 | << localName() |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 548 | << "> readVectorFromParcel(android.os.HwParcel parcel) {\n"; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 549 | out.indent(); |
| 550 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 551 | out << "java.util.ArrayList<" |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 552 | << localName() |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 553 | << "> _hidl_vec = new java.util.ArrayList();\n"; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 554 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 555 | out << "android.os.HwBlob _hidl_blob = parcel.readBuffer();\n\n"; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 556 | |
| 557 | VectorType::EmitJavaFieldReaderWriterForElementType( |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 558 | out, |
| 559 | 0 /* depth */, |
| 560 | this, |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 561 | "parcel", |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 562 | "_hidl_blob", |
| 563 | "_hidl_vec", |
| 564 | "0", |
| 565 | true /* isReader */); |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 566 | |
Andreas Huber | 1b6822b | 2016-10-18 09:28:40 -0700 | [diff] [blame] | 567 | out << "\nreturn _hidl_vec;\n"; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 568 | |
| 569 | out.unindent(); |
| 570 | out << "}\n\n"; |
| 571 | |
| 572 | //////////////////////////////////////////////////////////////////////////// |
| 573 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 574 | out << "public final void readEmbeddedFromParcel(\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 575 | out.indent(2); |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 576 | out << "android.os.HwParcel parcel, android.os.HwBlob _hidl_blob, long _hidl_offset) {\n"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 577 | out.unindent(); |
| 578 | |
| 579 | size_t offset = 0; |
| 580 | for (const auto &field : *mFields) { |
| 581 | size_t fieldAlign, fieldSize; |
| 582 | field->type().getAlignmentAndSize(&fieldAlign, &fieldSize); |
| 583 | |
| 584 | size_t pad = offset % fieldAlign; |
| 585 | if (pad > 0) { |
| 586 | offset += fieldAlign - pad; |
| 587 | } |
| 588 | |
| 589 | field->type().emitJavaFieldReaderWriter( |
| 590 | out, |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 591 | 0 /* depth */, |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 592 | "parcel", |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 593 | "_hidl_blob", |
| 594 | field->name(), |
| 595 | "_hidl_offset + " + std::to_string(offset), |
| 596 | true /* isReader */); |
| 597 | |
| 598 | offset += fieldSize; |
| 599 | } |
| 600 | |
| 601 | out.unindent(); |
| 602 | out << "}\n\n"; |
| 603 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 604 | //////////////////////////////////////////////////////////////////////////// |
| 605 | |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 606 | size_t structAlign, structSize; |
| 607 | getAlignmentAndSize(&structAlign, &structSize); |
| 608 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 609 | out << "public final void writeToParcel(android.os.HwParcel parcel) {\n"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 610 | out.indent(); |
| 611 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 612 | out << "android.os.HwBlob _hidl_blob = new android.os.HwBlob(" |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 613 | << structSize |
| 614 | << " /* size */);\n"; |
| 615 | |
| 616 | out << "writeEmbeddedToBlob(_hidl_blob, 0 /* parentOffset */);\n" |
| 617 | << "parcel.writeBuffer(_hidl_blob);\n"; |
| 618 | |
| 619 | out.unindent(); |
| 620 | out << "}\n\n"; |
| 621 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 622 | //////////////////////////////////////////////////////////////////////////// |
| 623 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 624 | out << "public static final void writeVectorToParcel(\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 625 | out.indent(2); |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 626 | out << "android.os.HwParcel parcel, java.util.ArrayList<" |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 627 | << localName() |
Andreas Huber | 1b6822b | 2016-10-18 09:28:40 -0700 | [diff] [blame] | 628 | << "> _hidl_vec) {\n"; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 629 | out.unindent(); |
| 630 | |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 631 | out << "android.os.HwBlob _hidl_blob = new android.os.HwBlob(24 /* sizeof(hidl_vec<T>) */);\n"; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 632 | |
| 633 | VectorType::EmitJavaFieldReaderWriterForElementType( |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 634 | out, |
| 635 | 0 /* depth */, |
| 636 | this, |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 637 | "parcel", |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 638 | "_hidl_blob", |
| 639 | "_hidl_vec", |
| 640 | "0", |
| 641 | false /* isReader */); |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 642 | |
| 643 | out << "\nparcel.writeBuffer(_hidl_blob);\n"; |
| 644 | |
| 645 | out.unindent(); |
| 646 | out << "}\n\n"; |
| 647 | |
| 648 | //////////////////////////////////////////////////////////////////////////// |
| 649 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 650 | out << "public final void writeEmbeddedToBlob(\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 651 | out.indent(2); |
Yifan Hong | 1af7353 | 2016-11-09 14:32:58 -0800 | [diff] [blame] | 652 | out << "android.os.HwBlob _hidl_blob, long _hidl_offset) {\n"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 653 | out.unindent(); |
| 654 | |
| 655 | offset = 0; |
| 656 | for (const auto &field : *mFields) { |
| 657 | size_t fieldAlign, fieldSize; |
| 658 | field->type().getAlignmentAndSize(&fieldAlign, &fieldSize); |
| 659 | |
| 660 | size_t pad = offset % fieldAlign; |
| 661 | if (pad > 0) { |
| 662 | offset += fieldAlign - pad; |
| 663 | } |
| 664 | |
| 665 | field->type().emitJavaFieldReaderWriter( |
| 666 | out, |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 667 | 0 /* depth */, |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 668 | "parcel", |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 669 | "_hidl_blob", |
| 670 | field->name(), |
| 671 | "_hidl_offset + " + std::to_string(offset), |
| 672 | false /* isReader */); |
| 673 | |
| 674 | offset += fieldSize; |
| 675 | } |
| 676 | |
| 677 | out.unindent(); |
| 678 | out << "}\n"; |
| 679 | |
| 680 | out.unindent(); |
| 681 | out << "};\n\n"; |
| 682 | |
| 683 | return OK; |
| 684 | } |
| 685 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 686 | void CompoundType::emitStructReaderWriter( |
| 687 | Formatter &out, const std::string &prefix, bool isReader) const { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 688 | |
| 689 | std::string space = prefix.empty() ? "" : (prefix + "::"); |
| 690 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 691 | out << "::android::status_t " |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 692 | << (isReader ? "readEmbeddedFromParcel" |
| 693 | : "writeEmbeddedToParcel") |
| 694 | << "(\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 695 | |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 696 | out.indent(2); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 697 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 698 | bool useName = false; |
| 699 | for (const auto &field : *mFields) { |
| 700 | if (field->type().useNameInEmitReaderWriterEmbedded(isReader)) { |
| 701 | useName = true; |
| 702 | break; |
| 703 | } |
| 704 | } |
| 705 | std::string name = useName ? "obj" : "/* obj */"; |
| 706 | // if not useName, then obj should not be used at all, |
| 707 | // then the #error should not be emitted. |
| 708 | std::string error = useName ? "" : "\n#error\n"; |
| 709 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 710 | if (isReader) { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 711 | out << space << localName() << " *" << name << ",\n"; |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 712 | out << "const ::android::hardware::Parcel &parcel,\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 713 | } else { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 714 | out << "const " << space << localName() << " &" << name << ",\n"; |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 715 | out << "::android::hardware::Parcel *parcel,\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 716 | } |
| 717 | |
| 718 | out << "size_t parentHandle,\n" |
| 719 | << "size_t parentOffset)"; |
| 720 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 721 | out << " {\n"; |
| 722 | |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 723 | out.unindent(2); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 724 | out.indent(); |
| 725 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 726 | out << "::android::status_t _hidl_err = ::android::OK;\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 727 | |
| 728 | for (const auto &field : *mFields) { |
| 729 | if (!field->type().needsEmbeddedReadWrite()) { |
| 730 | continue; |
| 731 | } |
| 732 | |
| 733 | field->type().emitReaderWriterEmbedded( |
| 734 | out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 735 | 0 /* depth */, |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 736 | name + (isReader ? "->" : ".") + field->name() + error, |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 737 | field->name() /* sanitizedName */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 738 | false /* nameIsPointer */, |
| 739 | "parcel", |
| 740 | !isReader /* parcelObjIsPointer */, |
| 741 | isReader, |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 742 | ErrorMode_Return, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 743 | "parentHandle", |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 744 | "parentOffset + offsetof(" |
| 745 | + fullName() |
| 746 | + ", " |
| 747 | + field->name() |
| 748 | + ")"); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 749 | } |
| 750 | |
| 751 | out.unindent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 752 | out << "_hidl_error:\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 753 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 754 | out << "return _hidl_err;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 755 | |
| 756 | out.unindent(); |
| 757 | out << "}\n\n"; |
| 758 | } |
| 759 | |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 760 | void CompoundType::emitResolveReferenceDef( |
| 761 | Formatter &out, const std::string prefix, bool isReader) const { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 762 | out << "::android::status_t "; |
| 763 | const std::string space(prefix.empty() ? "" : (prefix + "::")); |
Yifan Hong | 00f4717 | 2016-09-30 14:40:45 -0700 | [diff] [blame] | 764 | |
| 765 | bool useParent = false; |
| 766 | for (const auto &field : *mFields) { |
| 767 | if (field->type().useParentInEmitResolveReferencesEmbedded()) { |
| 768 | useParent = true; |
| 769 | break; |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | std::string parentHandleName = useParent ? "parentHandle" : "/* parentHandle */"; |
| 774 | std::string parentOffsetName = useParent ? "parentOffset" : "/* parentOffset */"; |
| 775 | |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 776 | if (isReader) { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 777 | out << "readEmbeddedReferenceFromParcel(\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 778 | out.indent(2); |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 779 | out << space + localName() + " *obj,\n" |
| 780 | << "const ::android::hardware::Parcel &parcel,\n" |
Yifan Hong | 00f4717 | 2016-09-30 14:40:45 -0700 | [diff] [blame] | 781 | << "size_t " << parentHandleName << ", " |
| 782 | << "size_t " << parentOffsetName << ")\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 783 | out.unindent(2); |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 784 | } else { |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 785 | out << "writeEmbeddedReferenceToParcel(\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 786 | out.indent(2); |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 787 | out << "const " << space + localName() + " &obj,\n" |
| 788 | << "::android::hardware::Parcel *parcel,\n" |
Yifan Hong | 00f4717 | 2016-09-30 14:40:45 -0700 | [diff] [blame] | 789 | << "size_t " << parentHandleName << ", " |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 790 | << "size_t " << parentOffsetName << ")\n"; |
Yifan Hong | 0a68a28 | 2016-10-21 16:32:34 -0700 | [diff] [blame] | 791 | out.unindent(2); |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 792 | } |
| 793 | |
| 794 | out << " {\n"; |
| 795 | |
| 796 | out.indent(); |
| 797 | |
| 798 | out << "::android::status_t _hidl_err = ::android::OK;\n\n"; |
| 799 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 800 | const std::string nameDeref(isReader ? "obj->" : "obj."); |
Yifan Hong | 00f4717 | 2016-09-30 14:40:45 -0700 | [diff] [blame] | 801 | // if not useParent, then parentName and offsetText |
| 802 | // should not be used at all, then the #error should not be emitted. |
| 803 | std::string error = useParent ? "" : "\n#error\n"; |
| 804 | |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 805 | for (const auto &field : *mFields) { |
| 806 | if (!field->type().needsResolveReferences()) { |
| 807 | continue; |
| 808 | } |
| 809 | |
| 810 | field->type().emitResolveReferencesEmbedded( |
| 811 | out, |
| 812 | 0 /* depth */, |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 813 | nameDeref + field->name(), |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 814 | field->name() /* sanitizedName */, |
| 815 | false, // nameIsPointer |
| 816 | "parcel", // const std::string &parcelObj, |
| 817 | !isReader, // bool parcelObjIsPointer, |
| 818 | isReader, // bool isReader, |
| 819 | ErrorMode_Return, |
Yifan Hong | 00f4717 | 2016-09-30 14:40:45 -0700 | [diff] [blame] | 820 | parentHandleName + error, |
| 821 | parentOffsetName |
| 822 | + " + offsetof(" |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 823 | + fullName() |
| 824 | + ", " |
| 825 | + field->name() |
Yifan Hong | 00f4717 | 2016-09-30 14:40:45 -0700 | [diff] [blame] | 826 | + ")" |
| 827 | + error); |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 828 | } |
| 829 | |
| 830 | out.unindent(); |
| 831 | out << "_hidl_error:\n"; |
| 832 | out.indent(); |
| 833 | out << "return _hidl_err;\n"; |
| 834 | |
| 835 | out.unindent(); |
| 836 | out << "}\n\n"; |
| 837 | } |
| 838 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 839 | bool CompoundType::needsEmbeddedReadWrite() const { |
| 840 | if (mStyle != STYLE_STRUCT) { |
| 841 | return false; |
| 842 | } |
| 843 | |
| 844 | for (const auto &field : *mFields) { |
| 845 | if (field->type().needsEmbeddedReadWrite()) { |
| 846 | return true; |
| 847 | } |
| 848 | } |
| 849 | |
| 850 | return false; |
| 851 | } |
| 852 | |
Yifan Hong | bf459bc | 2016-08-23 16:50:37 -0700 | [diff] [blame] | 853 | bool CompoundType::needsResolveReferences() const { |
| 854 | if (mStyle != STYLE_STRUCT) { |
| 855 | return false; |
| 856 | } |
| 857 | |
| 858 | for (const auto &field : *mFields) { |
| 859 | if (field->type().needsResolveReferences()) { |
| 860 | return true; |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | return false; |
| 865 | } |
| 866 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 867 | bool CompoundType::resultNeedsDeref() const { |
| 868 | return true; |
| 869 | } |
| 870 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 871 | status_t CompoundType::emitVtsTypeDeclarations(Formatter &out) const { |
Zhuoyao Zhang | bf828c8 | 2016-10-26 14:15:10 -0700 | [diff] [blame] | 872 | out << "name: \"" << fullName() << "\"\n"; |
Zhuoyao Zhang | c5ea9f5 | 2016-10-06 15:05:39 -0700 | [diff] [blame] | 873 | out << "type: " << getVtsType() << "\n"; |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 874 | |
| 875 | // Emit declaration for each subtype. |
| 876 | for (const auto &type : getSubTypes()) { |
| 877 | switch (mStyle) { |
| 878 | case STYLE_STRUCT: |
| 879 | { |
Zhuoyao Zhang | c5ea9f5 | 2016-10-06 15:05:39 -0700 | [diff] [blame] | 880 | out << "sub_struct: {\n"; |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 881 | break; |
| 882 | } |
| 883 | case STYLE_UNION: |
| 884 | { |
Zhuoyao Zhang | c5ea9f5 | 2016-10-06 15:05:39 -0700 | [diff] [blame] | 885 | out << "sub_union: {\n"; |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 886 | break; |
| 887 | } |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 888 | } |
| 889 | out.indent(); |
| 890 | status_t status(type->emitVtsTypeDeclarations(out)); |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 891 | if (status != OK) { |
| 892 | return status; |
| 893 | } |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 894 | out.unindent(); |
| 895 | out << "}\n"; |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 896 | } |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 897 | |
| 898 | // Emit declaration for each field. |
| 899 | for (const auto &field : *mFields) { |
| 900 | switch (mStyle) { |
| 901 | case STYLE_STRUCT: |
| 902 | { |
| 903 | out << "struct_value: {\n"; |
| 904 | break; |
| 905 | } |
| 906 | case STYLE_UNION: |
| 907 | { |
| 908 | out << "union_value: {\n"; |
| 909 | break; |
| 910 | } |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 911 | } |
| 912 | out.indent(); |
| 913 | out << "name: \"" << field->name() << "\"\n"; |
| 914 | status_t status = field->type().emitVtsAttributeType(out); |
| 915 | if (status != OK) { |
| 916 | return status; |
| 917 | } |
| 918 | out.unindent(); |
| 919 | out << "}\n"; |
| 920 | } |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 921 | |
| 922 | return OK; |
| 923 | } |
| 924 | |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 925 | status_t CompoundType::emitVtsAttributeType(Formatter &out) const { |
Zhuoyao Zhang | c5ea9f5 | 2016-10-06 15:05:39 -0700 | [diff] [blame] | 926 | out << "type: " << getVtsType() << "\n"; |
Zhuoyao Zhang | bf828c8 | 2016-10-26 14:15:10 -0700 | [diff] [blame] | 927 | out << "predefined_type: \"" << fullName() << "\"\n"; |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 928 | return OK; |
| 929 | } |
| 930 | |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 931 | bool CompoundType::isJavaCompatible() const { |
Andreas Huber | 0fa9e39 | 2016-08-31 09:05:44 -0700 | [diff] [blame] | 932 | if (mStyle != STYLE_STRUCT || !Scope::isJavaCompatible()) { |
| 933 | return false; |
| 934 | } |
| 935 | |
| 936 | for (const auto &field : *mFields) { |
| 937 | if (!field->type().isJavaCompatible()) { |
| 938 | return false; |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | return true; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 943 | } |
| 944 | |
| 945 | void CompoundType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 946 | *align = 1; |
| 947 | |
| 948 | size_t offset = 0; |
| 949 | for (const auto &field : *mFields) { |
| 950 | // Each field is aligned according to its alignment requirement. |
| 951 | // The surrounding structure's alignment is the maximum of its |
| 952 | // fields' aligments. |
| 953 | |
| 954 | size_t fieldAlign, fieldSize; |
| 955 | field->type().getAlignmentAndSize(&fieldAlign, &fieldSize); |
| 956 | |
| 957 | size_t pad = offset % fieldAlign; |
| 958 | if (pad > 0) { |
| 959 | offset += fieldAlign - pad; |
| 960 | } |
| 961 | |
| 962 | offset += fieldSize; |
| 963 | |
| 964 | if (fieldAlign > (*align)) { |
| 965 | *align = fieldAlign; |
| 966 | } |
| 967 | } |
| 968 | |
| 969 | // Final padding to account for the structure's alignment. |
| 970 | size_t pad = offset % (*align); |
| 971 | if (pad > 0) { |
| 972 | offset += (*align) - pad; |
| 973 | } |
| 974 | |
| 975 | *size = offset; |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 976 | } |
| 977 | |
Andreas Huber | 31629bc | 2016-08-03 09:06:40 -0700 | [diff] [blame] | 978 | //////////////////////////////////////////////////////////////////////////////// |
| 979 | |
| 980 | CompoundField::CompoundField(const char *name, Type *type) |
| 981 | : mName(name), |
| 982 | mType(type) { |
| 983 | } |
| 984 | |
| 985 | std::string CompoundField::name() const { |
| 986 | return mName; |
| 987 | } |
| 988 | |
| 989 | const Type &CompoundField::type() const { |
| 990 | return *mType; |
| 991 | } |
| 992 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 993 | } // namespace android |
| 994 | |