[analyzer][UninitializedObjectChecker] Refactoring p1.: ImmutableList factory is no longer static
This patch is the first part of a series of patches to refactor UninitializedObjectChecker. The goal of this effort is to
Separate pointer chasing from the rest of the checker,
Increase readability and reliability,
Don't impact performance (too bad).
In this one, ImmutableList's factory is moved to FindUninitializedFields.
Differential Revision: https://reviews.llvm.org/D50503
llvm-svn: 339591
diff --git a/clang/lib/StaticAnalyzer/Checkers/UninitializedObjectChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/UninitializedObjectChecker.cpp
index 7dee35e..ba81322 100644
--- a/clang/lib/StaticAnalyzer/Checkers/UninitializedObjectChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/UninitializedObjectChecker.cpp
@@ -73,17 +73,21 @@
/// Note that this class is immutable, and new fields may only be added through
/// constructor calls.
class FieldChainInfo {
+public:
using FieldChain = llvm::ImmutableList<const FieldRegion *>;
+private:
+ FieldChain::Factory &Factory;
FieldChain Chain;
const bool IsDereferenced = false;
public:
- FieldChainInfo() = default;
+ FieldChainInfo() = delete;
+ FieldChainInfo(FieldChain::Factory &F) : Factory(F) {}
FieldChainInfo(const FieldChainInfo &Other, const bool IsDereferenced)
- : Chain(Other.Chain), IsDereferenced(IsDereferenced) {}
+ : Factory(Other.Factory), Chain(Other.Chain), IsDereferenced(IsDereferenced) {}
FieldChainInfo(const FieldChainInfo &Other, const FieldRegion *FR,
const bool IsDereferenced = false);
@@ -128,6 +132,7 @@
bool IsAnyFieldInitialized = false;
+ FieldChainInfo::FieldChain::Factory Factory;
UninitFieldSet UninitFields;
public:
@@ -217,10 +222,6 @@
} // end of anonymous namespace
-// Static variable instantionations.
-
-static llvm::ImmutableListFactory<const FieldRegion *> Factory;
-
// Utility function declarations.
/// Returns the object that was constructed by CtorDecl, or None if that isn't
@@ -355,7 +356,7 @@
CheckPointeeInitialization(CheckPointeeInitialization) {}
const UninitFieldSet &FindUninitializedFields::getUninitFields() {
- isNonUnionUninit(ObjectR, FieldChainInfo());
+ isNonUnionUninit(ObjectR, FieldChainInfo(Factory));
if (!IsPedantic && !IsAnyFieldInitialized)
UninitFields.clear();