[analyzer] Add CheckerManager::getChecker, make sure that a registry function registers no more than 1 checker
This patch effectively fixes the almost decade old checker naming issue.
The solution is to assert when CheckerManager::getChecker is called on an
unregistered checker, and assert when CheckerManager::registerChecker is called
on a checker that is already registered.
Differential Revision: https://reviews.llvm.org/D55429
llvm-svn: 352292
diff --git a/clang/lib/StaticAnalyzer/Checkers/IteratorChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/IteratorChecker.cpp
index fbabe33..8649a32 100644
--- a/clang/lib/StaticAnalyzer/Checkers/IteratorChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/IteratorChecker.cpp
@@ -2403,7 +2403,7 @@
#define REGISTER_CHECKER(name) \
void ento::register##name(CheckerManager &Mgr) { \
- auto *checker = Mgr.registerChecker<IteratorChecker>(); \
+ auto *checker = Mgr.getChecker<IteratorChecker>(); \
checker->ChecksEnabled[IteratorChecker::CK_##name] = true; \
checker->CheckNames[IteratorChecker::CK_##name] = \
Mgr.getCurrentCheckName(); \