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 "ClangSACheckersEmitter.h"
16 #include "llvm/ADT/DenseSet.h"
21 //===----------------------------------------------------------------------===//
22 // Static Analyzer Checkers Tables generation
23 //===----------------------------------------------------------------------===//
25 /// \brief True if it is specified hidden or a parent package is specified
26 /// as hidden, otherwise false.
27 static bool isHidden(const Record &R) {
28 if (R.getValueAsBit("Hidden"))
30 // Not declared as hidden, check the parent package if it is hidden.
31 if (DefInit *DI = dynamic_cast<DefInit*>(R.getValueInit("ParentPackage")))
32 return isHidden(*DI->getDef());
37 static bool isCheckerNamed(const Record *R) {
38 return !R->getValueAsString("CheckerName").empty();
41 static std::string getPackageFullName(const Record *R);
43 static std::string getParentPackageFullName(const Record *R) {
45 if (DefInit *DI = dynamic_cast<DefInit*>(R->getValueInit("ParentPackage")))
46 name = getPackageFullName(DI->getDef());
50 static std::string getPackageFullName(const Record *R) {
51 std::string name = getParentPackageFullName(R);
52 if (!name.empty()) name += ".";
53 return name + R->getValueAsString("PackageName");
56 static std::string getCheckerFullName(const Record *R) {
57 std::string name = getParentPackageFullName(R);
58 if (isCheckerNamed(R)) {
59 if (!name.empty()) name += ".";
60 name += R->getValueAsString("CheckerName");
65 static std::string getStringValue(const Record &R, StringRef field) {
67 SI = dynamic_cast<StringInit*>(R.getValueInit(field)))
68 return SI->getValue();
74 llvm::DenseSet<const Record*> Checkers;
75 llvm::DenseSet<const Record *> SubGroups;
79 GroupInfo() : Hidden(false) { }
83 static void addPackageToCheckerGroup(const Record *package, const Record *group,
84 llvm::DenseMap<const Record *, GroupInfo *> &recordGroupMap) {
85 llvm::DenseSet<const Record *> &checkers = recordGroupMap[package]->Checkers;
86 for (llvm::DenseSet<const Record *>::iterator
87 I = checkers.begin(), E = checkers.end(); I != E; ++I)
88 recordGroupMap[group]->Checkers.insert(*I);
90 llvm::DenseSet<const Record *> &subGroups = recordGroupMap[package]->SubGroups;
91 for (llvm::DenseSet<const Record *>::iterator
92 I = subGroups.begin(), E = subGroups.end(); I != E; ++I)
93 addPackageToCheckerGroup(*I, group, recordGroupMap);
96 void ClangSACheckersEmitter::run(raw_ostream &OS) {
97 std::vector<Record*> checkers = Records.getAllDerivedDefinitions("Checker");
98 llvm::DenseMap<const Record *, unsigned> checkerRecIndexMap;
99 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
100 checkerRecIndexMap[checkers[i]] = i;
102 OS << "\n#ifdef GET_CHECKERS\n";
103 for (unsigned i = 0, e = checkers.size(); i != e; ++i) {
104 const Record &R = *checkers[i];
106 OS << "CHECKER(" << "\"";
108 if (isCheckerNamed(&R))
109 name = getCheckerFullName(&R);
110 OS.write_escaped(name) << "\", ";
111 OS << R.getName() << ", ";
112 OS << getStringValue(R, "DescFile") << ", ";
114 OS.write_escaped(getStringValue(R, "HelpText")) << "\", ";
122 OS << "#endif // GET_CHECKERS\n\n";
124 // Invert the mapping of checkers to package/group into a one to many
125 // mapping of packages/groups to checkers.
126 std::map<std::string, GroupInfo> groupInfoByName;
127 llvm::DenseMap<const Record *, GroupInfo *> recordGroupMap;
129 std::vector<Record*> packages = Records.getAllDerivedDefinitions("Package");
130 for (unsigned i = 0, e = packages.size(); i != e; ++i) {
131 Record *R = packages[i];
132 std::string fullName = getPackageFullName(R);
133 if (!fullName.empty()) {
134 GroupInfo &info = groupInfoByName[fullName];
135 info.Hidden = isHidden(*R);
136 recordGroupMap[R] = &info;
141 checkerGroups = Records.getAllDerivedDefinitions("CheckerGroup");
142 for (unsigned i = 0, e = checkerGroups.size(); i != e; ++i) {
143 Record *R = checkerGroups[i];
144 std::string name = R->getValueAsString("GroupName");
146 GroupInfo &info = groupInfoByName[name];
147 recordGroupMap[R] = &info;
151 for (unsigned i = 0, e = checkers.size(); i != e; ++i) {
152 Record *R = checkers[i];
155 DI = dynamic_cast<DefInit*>(R->getValueInit("ParentPackage")))
156 package = DI->getDef();
157 if (!isCheckerNamed(R) && !package)
158 throw "Checker '" + R->getName() + "' is neither named, nor in a package!";
160 if (isCheckerNamed(R)) {
161 // Create a pseudo-group to hold this checker.
162 std::string fullName = getCheckerFullName(R);
163 GroupInfo &info = groupInfoByName[fullName];
164 info.Hidden = R->getValueAsBit("Hidden");
165 recordGroupMap[R] = &info;
166 info.Checkers.insert(R);
168 recordGroupMap[package]->Checkers.insert(R);
171 Record *currR = isCheckerNamed(R) ? R : package;
172 // Insert the checker and its parent packages into the subgroups set of
173 // the corresponding parent package.
175 = dynamic_cast<DefInit*>(currR->getValueInit("ParentPackage"))) {
176 Record *parentPackage = DI->getDef();
177 recordGroupMap[parentPackage]->SubGroups.insert(currR);
178 currR = parentPackage;
180 // Insert the checker into the set of its group.
181 if (DefInit *DI = dynamic_cast<DefInit*>(R->getValueInit("Group")))
182 recordGroupMap[DI->getDef()]->Checkers.insert(R);
185 // If a package is in group, add all its checkers and its sub-packages
186 // checkers into the group.
187 for (unsigned i = 0, e = packages.size(); i != e; ++i)
188 if (DefInit *DI = dynamic_cast<DefInit*>(packages[i]->getValueInit("Group")))
189 addPackageToCheckerGroup(packages[i], DI->getDef(), recordGroupMap);
192 for (std::map<std::string, GroupInfo>::iterator
193 I = groupInfoByName.begin(), E = groupInfoByName.end(); I != E; ++I)
194 I->second.Index = index++;
196 // Walk through the packages/groups/checkers emitting an array for each
197 // set of checkers and an array for each set of subpackages.
199 OS << "\n#ifdef GET_MEMBER_ARRAYS\n";
201 for (std::map<std::string, GroupInfo>::iterator
202 I = groupInfoByName.begin(), E = groupInfoByName.end(); I != E; ++I) {
203 maxLen = std::max(maxLen, (unsigned)I->first.size());
205 llvm::DenseSet<const Record *> &checkers = I->second.Checkers;
206 if (!checkers.empty()) {
207 OS << "static const short CheckerArray" << I->second.Index << "[] = { ";
208 for (llvm::DenseSet<const Record *>::iterator
209 I = checkers.begin(), E = checkers.end(); I != E; ++I)
210 OS << checkerRecIndexMap[*I] << ", ";
214 llvm::DenseSet<const Record *> &subGroups = I->second.SubGroups;
215 if (!subGroups.empty()) {
216 OS << "static const short SubPackageArray" << I->second.Index << "[] = { ";
217 for (llvm::DenseSet<const Record *>::iterator
218 I = subGroups.begin(), E = subGroups.end(); I != E; ++I) {
219 OS << recordGroupMap[*I]->Index << ", ";
224 OS << "#endif // GET_MEMBER_ARRAYS\n\n";
226 OS << "\n#ifdef GET_CHECKNAME_TABLE\n";
227 for (std::map<std::string, GroupInfo>::iterator
228 I = groupInfoByName.begin(), E = groupInfoByName.end(); I != E; ++I) {
229 // Group option string.
231 OS.write_escaped(I->first) << "\","
232 << std::string(maxLen-I->first.size()+1, ' ');
234 if (I->second.Checkers.empty())
237 OS << "CheckerArray" << I->second.Index << ", ";
240 if (I->second.SubGroups.empty())
243 OS << "SubPackageArray" << I->second.Index << ", ";
245 OS << (I->second.Hidden ? "true" : "false");
249 OS << "#endif // GET_CHECKNAME_TABLE\n\n";