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 "AST.h" |
| 18 | |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 19 | #include "Coordinator.h" |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 20 | #include "Formatter.h" |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 21 | #include "FQName.h" |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 22 | #include "HandleType.h" |
Andreas Huber | bfd7621 | 2016-08-09 11:12:16 -0700 | [diff] [blame] | 23 | #include "Interface.h" |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 24 | #include "Scope.h" |
Andreas Huber | 8d3ac0c | 2016-08-04 14:49:23 -0700 | [diff] [blame] | 25 | #include "TypeDef.h" |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 26 | |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 27 | #include <android-base/logging.h> |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 28 | #include <iostream> |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 29 | #include <stdlib.h> |
| 30 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 31 | namespace android { |
| 32 | |
Andreas Huber | 0d0f9a2 | 2016-08-17 10:26:11 -0700 | [diff] [blame] | 33 | AST::AST(Coordinator *coordinator, const std::string &path) |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 34 | : mCoordinator(coordinator), |
Andreas Huber | 0d0f9a2 | 2016-08-17 10:26:11 -0700 | [diff] [blame] | 35 | mPath(path), |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 36 | mScanner(NULL), |
Andreas Huber | 9ed827c | 2016-08-22 12:31:13 -0700 | [diff] [blame] | 37 | mRootScope(new Scope("" /* localName */)) { |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 38 | enterScope(mRootScope); |
| 39 | } |
| 40 | |
| 41 | AST::~AST() { |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 42 | delete mRootScope; |
| 43 | mRootScope = NULL; |
| 44 | |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 45 | CHECK(mScanner == NULL); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 46 | |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 47 | // Ownership of "coordinator" was NOT transferred. |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | void *AST::scanner() { |
| 51 | return mScanner; |
| 52 | } |
| 53 | |
| 54 | void AST::setScanner(void *scanner) { |
| 55 | mScanner = scanner; |
| 56 | } |
| 57 | |
Andreas Huber | 0d0f9a2 | 2016-08-17 10:26:11 -0700 | [diff] [blame] | 58 | const std::string &AST::getFilename() const { |
| 59 | return mPath; |
| 60 | } |
| 61 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 62 | bool AST::setPackage(const char *package) { |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 63 | mPackage.setTo(package); |
| 64 | CHECK(mPackage.isValid()); |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 65 | |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 66 | if (mPackage.package().empty() |
| 67 | || mPackage.version().empty() |
| 68 | || !mPackage.name().empty()) { |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 69 | return false; |
| 70 | } |
| 71 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 72 | return true; |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 73 | } |
| 74 | |
Andreas Huber | a2723d2 | 2016-07-29 15:36:07 -0700 | [diff] [blame] | 75 | FQName AST::package() const { |
| 76 | return mPackage; |
| 77 | } |
| 78 | |
| 79 | bool AST::isInterface(std::string *ifaceName) const { |
| 80 | return mRootScope->containsSingleInterface(ifaceName); |
| 81 | } |
| 82 | |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 83 | bool AST::addImport(const char *import) { |
| 84 | FQName fqName(import); |
| 85 | CHECK(fqName.isValid()); |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 86 | |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 87 | fqName.applyDefaults(mPackage.package(), mPackage.version()); |
| 88 | |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 89 | // LOG(INFO) << "importing " << fqName.string(); |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 90 | |
| 91 | if (fqName.name().empty()) { |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 92 | std::vector<FQName> packageInterfaces; |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 93 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 94 | status_t err = |
Iliyan Malchev | 5bb1402 | 2016-08-09 15:04:39 -0700 | [diff] [blame] | 95 | mCoordinator->appendPackageInterfacesToSet(fqName, |
| 96 | &packageInterfaces); |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 97 | |
| 98 | if (err != OK) { |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 99 | return false; |
| 100 | } |
| 101 | |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 102 | for (const auto &subFQName : packageInterfaces) { |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 103 | AST *ast = mCoordinator->parse(subFQName, &mImportedASTs); |
| 104 | if (ast == NULL) { |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 105 | return false; |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | return true; |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 110 | } |
| 111 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 112 | AST *importAST = mCoordinator->parse(fqName, &mImportedASTs); |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 113 | |
Andreas Huber | 68f2459 | 2016-07-29 14:53:48 -0700 | [diff] [blame] | 114 | if (importAST == NULL) { |
| 115 | return false; |
| 116 | } |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 117 | |
| 118 | return true; |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 119 | } |
| 120 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 121 | void AST::addImportedAST(AST *ast) { |
| 122 | mImportedASTs.insert(ast); |
| 123 | } |
| 124 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 125 | void AST::enterScope(Scope *container) { |
| 126 | mScopePath.push_back(container); |
| 127 | } |
| 128 | |
| 129 | void AST::leaveScope() { |
| 130 | mScopePath.pop(); |
| 131 | } |
| 132 | |
| 133 | Scope *AST::scope() { |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 134 | CHECK(!mScopePath.empty()); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 135 | return mScopePath.top(); |
| 136 | } |
| 137 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 138 | bool AST::addTypeDef( |
| 139 | const char *localName, Type *type, std::string *errorMsg) { |
| 140 | // The reason we wrap the given type in a TypeDef is simply to suppress |
| 141 | // emitting any type definitions later on, since this is just an alias |
| 142 | // to a type defined elsewhere. |
| 143 | return addScopedTypeInternal( |
| 144 | localName, new TypeDef(type), errorMsg, true /* isTypeDef */); |
| 145 | } |
| 146 | |
Andreas Huber | 9ed827c | 2016-08-22 12:31:13 -0700 | [diff] [blame] | 147 | bool AST::addScopedType(NamedType *type, std::string *errorMsg) { |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 148 | return addScopedTypeInternal( |
Andreas Huber | 9ed827c | 2016-08-22 12:31:13 -0700 | [diff] [blame] | 149 | type->localName().c_str(), type, errorMsg, false /* isTypeDef */); |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 150 | } |
| 151 | |
| 152 | bool AST::addScopedTypeInternal( |
| 153 | const char *localName, |
| 154 | Type *type, |
| 155 | std::string *errorMsg, |
| 156 | bool isTypeDef) { |
| 157 | if (!isTypeDef) { |
| 158 | // Resolve typeDefs to the target type. |
| 159 | while (type->isTypeDef()) { |
| 160 | type = static_cast<TypeDef *>(type)->referencedType(); |
| 161 | } |
| 162 | } |
| 163 | |
Andreas Huber | 31629bc | 2016-08-03 09:06:40 -0700 | [diff] [blame] | 164 | // LOG(INFO) << "adding scoped type '" << localName << "'"; |
| 165 | |
Andreas Huber | 0d0f9a2 | 2016-08-17 10:26:11 -0700 | [diff] [blame] | 166 | bool success = scope()->addType(localName, type, errorMsg); |
Andreas Huber | 5a54544 | 2016-08-03 10:44:56 -0700 | [diff] [blame] | 167 | if (!success) { |
| 168 | return false; |
| 169 | } |
| 170 | |
Andreas Huber | 31629bc | 2016-08-03 09:06:40 -0700 | [diff] [blame] | 171 | std::string path; |
| 172 | for (size_t i = 1; i < mScopePath.size(); ++i) { |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 173 | path.append(mScopePath[i]->localName()); |
Andreas Huber | 31629bc | 2016-08-03 09:06:40 -0700 | [diff] [blame] | 174 | path.append("."); |
| 175 | } |
| 176 | path.append(localName); |
| 177 | |
Andreas Huber | 31629bc | 2016-08-03 09:06:40 -0700 | [diff] [blame] | 178 | FQName fqName(mPackage.package(), mPackage.version(), path); |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 179 | |
| 180 | if (!isTypeDef) { |
| 181 | CHECK(type->isNamedType()); |
| 182 | |
| 183 | NamedType *namedType = static_cast<NamedType *>(type); |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 184 | namedType->setFullName(fqName); |
| 185 | } |
| 186 | |
| 187 | mDefinedTypesByFullName.add(fqName, type); |
Andreas Huber | 31629bc | 2016-08-03 09:06:40 -0700 | [diff] [blame] | 188 | |
Andreas Huber | 5a54544 | 2016-08-03 10:44:56 -0700 | [diff] [blame] | 189 | return true; |
Andreas Huber | 31629bc | 2016-08-03 09:06:40 -0700 | [diff] [blame] | 190 | } |
| 191 | |
Andreas Huber | fd4afab | 2016-08-03 13:02:57 -0700 | [diff] [blame] | 192 | Type *AST::lookupType(const char *name) { |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 193 | FQName fqName(name); |
| 194 | CHECK(fqName.isValid()); |
| 195 | |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame] | 196 | if (fqName.name().empty()) { |
| 197 | // Given a package and version??? |
| 198 | return NULL; |
| 199 | } |
| 200 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 201 | if (fqName.package().empty() && fqName.version().empty()) { |
| 202 | // This is just a plain identifier, resolve locally first if possible. |
| 203 | |
| 204 | for (size_t i = mScopePath.size(); i-- > 0;) { |
| 205 | Type *type = mScopePath[i]->lookupType(name); |
| 206 | |
| 207 | if (type != NULL) { |
Andreas Huber | 8d3ac0c | 2016-08-04 14:49:23 -0700 | [diff] [blame] | 208 | // Resolve typeDefs to the target type. |
| 209 | while (type->isTypeDef()) { |
| 210 | type = static_cast<TypeDef *>(type)->referencedType(); |
| 211 | } |
| 212 | |
Andreas Huber | fd4afab | 2016-08-03 13:02:57 -0700 | [diff] [blame] | 213 | return type->ref(); |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 214 | } |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 215 | } |
| 216 | } |
| 217 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 218 | Type *resolvedType = nullptr; |
| 219 | FQName resolvedName; |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 220 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 221 | for (const auto &importedAST : mImportedASTs) { |
| 222 | FQName matchingName; |
| 223 | Type *match = importedAST->findDefinedType(fqName, &matchingName); |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 224 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 225 | if (match != nullptr) { |
| 226 | if (resolvedType != nullptr) { |
| 227 | std::cerr << "ERROR: Unable to resolve type name '" |
| 228 | << fqName.string() |
| 229 | << "', multiple matches found:\n"; |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 230 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 231 | std::cerr << " " << resolvedName.string() << "\n"; |
| 232 | std::cerr << " " << matchingName.string() << "\n"; |
| 233 | |
| 234 | return NULL; |
| 235 | } |
| 236 | |
| 237 | resolvedType = match; |
| 238 | resolvedName = matchingName; |
| 239 | |
| 240 | // Keep going even after finding a match. |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | if (resolvedType) { |
| 245 | #if 0 |
| 246 | LOG(INFO) << "found '" |
| 247 | << resolvedName.string() |
| 248 | << "' after looking for '" |
| 249 | << fqName.string() |
| 250 | << "'."; |
| 251 | #endif |
| 252 | |
| 253 | // Resolve typeDefs to the target type. |
| 254 | while (resolvedType->isTypeDef()) { |
| 255 | resolvedType = |
| 256 | static_cast<TypeDef *>(resolvedType)->referencedType(); |
| 257 | } |
| 258 | |
| 259 | if (!resolvedType->isInterface()) { |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 260 | // Non-interface types are declared in the associated types header. |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 261 | FQName typesName( |
| 262 | resolvedName.package(), resolvedName.version(), "types"); |
| 263 | |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 264 | mImportedNames.insert(typesName); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 265 | |
| 266 | if (resolvedType->isNamedType()) { |
| 267 | mImportedNamesForJava.insert( |
| 268 | static_cast<NamedType *>(resolvedType)->fqName()); |
| 269 | } |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 270 | } else { |
Andreas Huber | bfd7621 | 2016-08-09 11:12:16 -0700 | [diff] [blame] | 271 | // Do _not_ use fqName, i.e. the name we used to look up the type, |
| 272 | // but instead use the name of the interface we found. |
| 273 | // This is necessary because if fqName pointed to a typedef which |
| 274 | // in turn referenced the found interface we'd mistakenly use the |
| 275 | // name of the typedef instead of the proper name of the interface. |
| 276 | |
| 277 | mImportedNames.insert( |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 278 | static_cast<Interface *>(resolvedType)->fqName()); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 279 | |
| 280 | mImportedNamesForJava.insert( |
| 281 | static_cast<Interface *>(resolvedType)->fqName()); |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 282 | } |
Andreas Huber | 737080b | 2016-08-02 15:38:04 -0700 | [diff] [blame] | 283 | } |
| 284 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 285 | return resolvedType->ref(); |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 286 | } |
| 287 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 288 | Type *AST::findDefinedType(const FQName &fqName, FQName *matchingName) const { |
| 289 | for (size_t i = 0; i < mDefinedTypesByFullName.size(); ++i) { |
| 290 | const FQName &key = mDefinedTypesByFullName.keyAt(i); |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 291 | |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 292 | if (key.endsWith(fqName)) { |
| 293 | *matchingName = key; |
| 294 | return mDefinedTypesByFullName.valueAt(i); |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 295 | } |
Andreas Huber | 5345ec2 | 2016-07-29 13:33:27 -0700 | [diff] [blame] | 296 | } |
Andreas Huber | 39fa718 | 2016-08-19 14:27:33 -0700 | [diff] [blame] | 297 | |
| 298 | return nullptr; |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 299 | } |
| 300 | |
Iliyan Malchev | 5bb1402 | 2016-08-09 15:04:39 -0700 | [diff] [blame] | 301 | void AST::getImportedPackages(std::set<FQName> *importSet) const { |
Andreas Huber | d2943e1 | 2016-08-05 11:59:31 -0700 | [diff] [blame] | 302 | for (const auto &fqName : mImportedNames) { |
| 303 | FQName packageName(fqName.package(), fqName.version(), ""); |
| 304 | |
| 305 | if (packageName == mPackage) { |
| 306 | // We only care about external imports, not our own package. |
| 307 | continue; |
| 308 | } |
| 309 | |
| 310 | importSet->insert(packageName); |
| 311 | } |
| 312 | } |
| 313 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 314 | } // namespace android; |