/// An immutable map from CallDescriptions to arbitrary data. Provides a unified
/// way for checkers to react on function calls.
template <typename T> class CallDescriptionMap {
+ friend class CallDescriptionSet;
+
// Some call descriptions aren't easily hashable (eg., the ones with qualified
// names in which some sections are omitted), so let's put them
// in a simple vector and use linear lookup.
}
};
+/// An immutable set of CallDescriptions.
+/// Checkers can efficiently decide if a given CallEvent matches any
+/// CallDescription in the set.
+class CallDescriptionSet {
+ CallDescriptionMap<bool /*unused*/> Impl = {};
+
+public:
+ CallDescriptionSet(std::initializer_list<CallDescription> &&List);
+
+ CallDescriptionSet(const CallDescriptionSet &) = delete;
+ CallDescriptionSet &operator=(const CallDescription &) = delete;
+
+ LLVM_NODISCARD bool contains(const CallEvent &Call) const;
+};
+
} // namespace ento
} // namespace clang
Optional<unsigned> RequiredArgs /*= None*/,
Optional<size_t> RequiredParams /*= None*/)
: CallDescription(0, QualifiedName, RequiredArgs, RequiredParams) {}
+
+ento::CallDescriptionSet::CallDescriptionSet(
+ std::initializer_list<CallDescription> &&List) {
+ Impl.LinearMap.reserve(List.size());
+ for (const CallDescription &CD : List)
+ Impl.LinearMap.push_back({CD, /*unused*/ true});
+}
+
+bool ento::CallDescriptionSet::contains(const CallEvent &Call) const {
+ return static_cast<bool>(Impl.lookup(Call));
+}