Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 1 | #include "AST.h" |
| 2 | |
| 3 | #include "Formatter.h" |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 4 | #include "FQName.h" |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 5 | #include "HandleType.h" |
| 6 | #include "RefType.h" |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 7 | #include "Scope.h" |
| 8 | |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 9 | #include <android-base/logging.h> |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 10 | #include <stdlib.h> |
| 11 | |
| 12 | extern void parseFile(android::AST *ast, const char *path); |
| 13 | |
| 14 | namespace android { |
| 15 | |
| 16 | AST::AST() |
| 17 | : mScanner(NULL), |
| 18 | mRootScope(new Scope("root")) { |
| 19 | enterScope(mRootScope); |
| 20 | } |
| 21 | |
| 22 | AST::~AST() { |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 23 | CHECK(scope() == mRootScope); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 24 | leaveScope(); |
| 25 | |
| 26 | delete mRootScope; |
| 27 | mRootScope = NULL; |
| 28 | |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 29 | CHECK(mScanner == NULL); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 30 | } |
| 31 | |
| 32 | // static |
| 33 | AST *AST::Parse(const char *path) { |
| 34 | AST *ast = new AST; |
| 35 | parseFile(ast, path); |
| 36 | |
| 37 | return ast; |
| 38 | } |
| 39 | |
| 40 | void *AST::scanner() { |
| 41 | return mScanner; |
| 42 | } |
| 43 | |
| 44 | void AST::setScanner(void *scanner) { |
| 45 | mScanner = scanner; |
| 46 | } |
| 47 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 48 | void AST::setVersion(const char *major, const char *minor) { |
| 49 | mVersion = "@"; |
| 50 | mVersion.append(major); |
| 51 | mVersion.append("."); |
| 52 | mVersion.append(minor); |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 53 | } |
| 54 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 55 | bool AST::setPackage(const char *package) { |
| 56 | FQName fqName(package); |
| 57 | CHECK(fqName.isValid()); |
| 58 | |
| 59 | if (!fqName.package().empty() || !fqName.version().empty()) { |
| 60 | return false; |
| 61 | } |
| 62 | |
| 63 | mPackage = package; |
| 64 | |
| 65 | return true; |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 66 | } |
| 67 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 68 | bool AST::addImport(const char *import) { |
| 69 | #if 0 |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 70 | CHECK(!importPath->empty()); |
| 71 | |
| 72 | std::string leaf = importPath->itemAt(importPath->size() - 1); |
| 73 | scope()->addType(new RefType(leaf.c_str(), new HandleType)); |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 74 | #endif |
| 75 | |
| 76 | return true; |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 77 | } |
| 78 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 79 | void AST::enterScope(Scope *container) { |
| 80 | mScopePath.push_back(container); |
| 81 | } |
| 82 | |
| 83 | void AST::leaveScope() { |
| 84 | mScopePath.pop(); |
| 85 | } |
| 86 | |
| 87 | Scope *AST::scope() { |
Andreas Huber | eb1081f | 2016-07-28 13:13:24 -0700 | [diff] [blame] | 88 | CHECK(!mScopePath.empty()); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 89 | return mScopePath.top(); |
| 90 | } |
| 91 | |
| 92 | Type *AST::lookupType(const char *name) { |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 93 | LOG(INFO) << "lookupType " << name; |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 94 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 95 | FQName fqName(name); |
| 96 | CHECK(fqName.isValid()); |
| 97 | |
| 98 | if (fqName.package().empty() && fqName.version().empty()) { |
| 99 | // This is just a plain identifier, resolve locally first if possible. |
| 100 | |
| 101 | for (size_t i = mScopePath.size(); i-- > 0;) { |
| 102 | Type *type = mScopePath[i]->lookupType(name); |
| 103 | |
| 104 | if (type != NULL) { |
| 105 | return new RefType(name, type); |
| 106 | } |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 107 | } |
| 108 | } |
| 109 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame^] | 110 | fqName.applyDefaults(mPackage, mVersion); |
| 111 | |
| 112 | LOG(INFO) << "lookupType now looking for " << fqName.debugString(); |
| 113 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 114 | return NULL; |
| 115 | } |
| 116 | |
| 117 | void AST::dump(Formatter &out) const { |
| 118 | mRootScope->dump(out); |
| 119 | } |
| 120 | |
| 121 | } // namespace android; |