1 //=- ClangSACheckersEmitter.cpp - Generate Clang SA checkers tables -*- C++ -*-
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This tablegen backend emits Clang Static Analyzer checkers tables.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/ADT/DenseSet.h"
15 #include "llvm/TableGen/Error.h"
16 #include "llvm/TableGen/Record.h"
17 #include "llvm/TableGen/TableGenBackend.h"
22 //===----------------------------------------------------------------------===//
23 // Static Analyzer Checkers Tables generation
24 //===----------------------------------------------------------------------===//
26 /// True if it is specified hidden or a parent package is specified
27 /// as hidden, otherwise false.
28 static bool isHidden(const Record &R) {
29 if (R.getValueAsBit("Hidden"))
31 // Not declared as hidden, check the parent package if it is hidden.
32 if (DefInit *DI = dyn_cast<DefInit>(R.getValueInit("ParentPackage")))
33 return isHidden(*DI->getDef());
38 static bool isCheckerNamed(const Record *R) {
39 return !R->getValueAsString("CheckerName").empty();
42 static std::string getPackageFullName(const Record *R);
44 static std::string getParentPackageFullName(const Record *R) {
46 if (DefInit *DI = dyn_cast<DefInit>(R->getValueInit("ParentPackage")))
47 name = getPackageFullName(DI->getDef());
51 static std::string getPackageFullName(const Record *R) {
52 std::string name = getParentPackageFullName(R);
53 if (!name.empty()) name += ".";
54 name += R->getValueAsString("PackageName");
58 static std::string getCheckerFullName(const Record *R) {
59 std::string name = getParentPackageFullName(R);
60 if (isCheckerNamed(R)) {
61 if (!name.empty()) name += ".";
62 name += R->getValueAsString("CheckerName");
67 static std::string getStringValue(const Record &R, StringRef field) {
68 if (StringInit *SI = dyn_cast<StringInit>(R.getValueInit(field)))
69 return SI->getValue();
75 llvm::DenseSet<const Record*> Checkers;
76 llvm::DenseSet<const Record *> SubGroups;
80 GroupInfo() : Hidden(false) { }
84 static void addPackageToCheckerGroup(const Record *package, const Record *group,
85 llvm::DenseMap<const Record *, GroupInfo *> &recordGroupMap) {
86 llvm::DenseSet<const Record *> &checkers = recordGroupMap[package]->Checkers;
87 for (llvm::DenseSet<const Record *>::iterator
88 I = checkers.begin(), E = checkers.end(); I != E; ++I)
89 recordGroupMap[group]->Checkers.insert(*I);
91 llvm::DenseSet<const Record *> &subGroups = recordGroupMap[package]->SubGroups;
92 for (llvm::DenseSet<const Record *>::iterator
93 I = subGroups.begin(), E = subGroups.end(); I != E; ++I)
94 addPackageToCheckerGroup(*I, group, recordGroupMap);
98 void EmitClangSACheckers(RecordKeeper &Records, raw_ostream &OS) {
99 std::vector<Record*> checkers = Records.getAllDerivedDefinitions("Checker");
100 llvm::DenseMap<const Record *, unsigned> checkerRecIndexMap;
101 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
102 checkerRecIndexMap[checkers[i]] = i;
104 // Invert the mapping of checkers to package/group into a one to many
105 // mapping of packages/groups to checkers.
106 std::map<std::string, GroupInfo> groupInfoByName;
107 llvm::DenseMap<const Record *, GroupInfo *> recordGroupMap;
109 std::vector<Record*> packages = Records.getAllDerivedDefinitions("Package");
110 for (unsigned i = 0, e = packages.size(); i != e; ++i) {
111 Record *R = packages[i];
112 std::string fullName = getPackageFullName(R);
113 if (!fullName.empty()) {
114 GroupInfo &info = groupInfoByName[fullName];
115 info.Hidden = isHidden(*R);
116 recordGroupMap[R] = &info;
121 checkerGroups = Records.getAllDerivedDefinitions("CheckerGroup");
122 for (unsigned i = 0, e = checkerGroups.size(); i != e; ++i) {
123 Record *R = checkerGroups[i];
124 std::string name = R->getValueAsString("GroupName");
126 GroupInfo &info = groupInfoByName[name];
127 recordGroupMap[R] = &info;
131 for (unsigned i = 0, e = checkers.size(); i != e; ++i) {
132 Record *R = checkers[i];
133 Record *package = nullptr;
135 DI = dyn_cast<DefInit>(R->getValueInit("ParentPackage")))
136 package = DI->getDef();
137 if (!isCheckerNamed(R) && !package)
138 PrintFatalError(R->getLoc(), "Checker '" + R->getName() +
139 "' is neither named, nor in a package!");
141 if (isCheckerNamed(R)) {
142 // Create a pseudo-group to hold this checker.
143 std::string fullName = getCheckerFullName(R);
144 GroupInfo &info = groupInfoByName[fullName];
145 info.Hidden = R->getValueAsBit("Hidden");
146 recordGroupMap[R] = &info;
147 info.Checkers.insert(R);
149 recordGroupMap[package]->Checkers.insert(R);
152 Record *currR = isCheckerNamed(R) ? R : package;
153 // Insert the checker and its parent packages into the subgroups set of
154 // the corresponding parent package.
156 = dyn_cast<DefInit>(currR->getValueInit("ParentPackage"))) {
157 Record *parentPackage = DI->getDef();
158 recordGroupMap[parentPackage]->SubGroups.insert(currR);
159 currR = parentPackage;
161 // Insert the checker into the set of its group.
162 if (DefInit *DI = dyn_cast<DefInit>(R->getValueInit("Group")))
163 recordGroupMap[DI->getDef()]->Checkers.insert(R);
166 // If a package is in group, add all its checkers and its sub-packages
167 // checkers into the group.
168 for (unsigned i = 0, e = packages.size(); i != e; ++i)
169 if (DefInit *DI = dyn_cast<DefInit>(packages[i]->getValueInit("Group")))
170 addPackageToCheckerGroup(packages[i], DI->getDef(), recordGroupMap);
172 typedef std::map<std::string, const Record *> SortedRecords;
173 typedef llvm::DenseMap<const Record *, unsigned> RecToSortIndex;
175 SortedRecords sortedGroups;
176 RecToSortIndex groupToSortIndex;
177 OS << "\n#ifdef GET_GROUPS\n";
179 for (unsigned i = 0, e = checkerGroups.size(); i != e; ++i)
180 sortedGroups[checkerGroups[i]->getValueAsString("GroupName")]
183 unsigned sortIndex = 0;
184 for (SortedRecords::iterator
185 I = sortedGroups.begin(), E = sortedGroups.end(); I != E; ++I) {
186 const Record *R = I->second;
188 OS << "GROUP(" << "\"";
189 OS.write_escaped(R->getValueAsString("GroupName")) << "\"";
192 groupToSortIndex[R] = sortIndex++;
195 OS << "#endif // GET_GROUPS\n\n";
197 OS << "\n#ifdef GET_PACKAGES\n";
199 SortedRecords sortedPackages;
200 for (unsigned i = 0, e = packages.size(); i != e; ++i)
201 sortedPackages[getPackageFullName(packages[i])] = packages[i];
203 for (SortedRecords::iterator
204 I = sortedPackages.begin(), E = sortedPackages.end(); I != E; ++I) {
205 const Record &R = *I->second;
207 OS << "PACKAGE(" << "\"";
208 OS.write_escaped(getPackageFullName(&R)) << "\", ";
210 if (DefInit *DI = dyn_cast<DefInit>(R.getValueInit("Group")))
211 OS << groupToSortIndex[DI->getDef()] << ", ";
222 OS << "#endif // GET_PACKAGES\n\n";
224 OS << "\n#ifdef GET_CHECKERS\n";
225 for (unsigned i = 0, e = checkers.size(); i != e; ++i) {
226 const Record &R = *checkers[i];
228 OS << "CHECKER(" << "\"";
230 if (isCheckerNamed(&R))
231 name = getCheckerFullName(&R);
232 OS.write_escaped(name) << "\", ";
233 OS << R.getName() << ", ";
234 OS << getStringValue(R, "DescFile") << ", ";
236 OS.write_escaped(getStringValue(R, "HelpText")) << "\", ";
238 if (DefInit *DI = dyn_cast<DefInit>(R.getValueInit("Group")))
239 OS << groupToSortIndex[DI->getDef()] << ", ";
249 OS << "#endif // GET_CHECKERS\n\n";
252 for (std::map<std::string, GroupInfo>::iterator
253 I = groupInfoByName.begin(), E = groupInfoByName.end(); I != E; ++I)
254 I->second.Index = index++;
256 // Walk through the packages/groups/checkers emitting an array for each
257 // set of checkers and an array for each set of subpackages.
259 OS << "\n#ifdef GET_MEMBER_ARRAYS\n";
261 for (std::map<std::string, GroupInfo>::iterator
262 I = groupInfoByName.begin(), E = groupInfoByName.end(); I != E; ++I) {
263 maxLen = std::max(maxLen, (unsigned)I->first.size());
265 llvm::DenseSet<const Record *> &checkers = I->second.Checkers;
266 if (!checkers.empty()) {
267 OS << "static const short CheckerArray" << I->second.Index << "[] = { ";
268 // Make the output order deterministic.
269 std::map<int, const Record *> sorted;
270 for (llvm::DenseSet<const Record *>::iterator
271 I = checkers.begin(), E = checkers.end(); I != E; ++I)
272 sorted[(*I)->getID()] = *I;
274 for (std::map<int, const Record *>::iterator
275 I = sorted.begin(), E = sorted.end(); I != E; ++I)
276 OS << checkerRecIndexMap[I->second] << ", ";
280 llvm::DenseSet<const Record *> &subGroups = I->second.SubGroups;
281 if (!subGroups.empty()) {
282 OS << "static const short SubPackageArray" << I->second.Index << "[] = { ";
283 // Make the output order deterministic.
284 std::map<int, const Record *> sorted;
285 for (llvm::DenseSet<const Record *>::iterator
286 I = subGroups.begin(), E = subGroups.end(); I != E; ++I)
287 sorted[(*I)->getID()] = *I;
289 for (std::map<int, const Record *>::iterator
290 I = sorted.begin(), E = sorted.end(); I != E; ++I) {
291 OS << recordGroupMap[I->second]->Index << ", ";
296 OS << "#endif // GET_MEMBER_ARRAYS\n\n";
298 OS << "\n#ifdef GET_CHECKNAME_TABLE\n";
299 for (std::map<std::string, GroupInfo>::iterator
300 I = groupInfoByName.begin(), E = groupInfoByName.end(); I != E; ++I) {
301 // Group option string.
303 OS.write_escaped(I->first) << "\","
304 << std::string(maxLen-I->first.size()+1, ' ');
306 if (I->second.Checkers.empty())
309 OS << "CheckerArray" << I->second.Index << ", ";
312 if (I->second.SubGroups.empty())
315 OS << "SubPackageArray" << I->second.Index << ", ";
317 OS << (I->second.Hidden ? "true" : "false");
321 OS << "#endif // GET_CHECKNAME_TABLE\n\n";
323 } // end namespace clang