Static Analyzer: Replace LiveSymbols/DeadSymbols sets with a new object called "SymbolReaper". Right now it just consolidates the two and cleans up some client code, but shortly it will be used to enable "lazy computation" of live symbols for use with RegionStore.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62722 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/SymbolManager.cpp b/lib/Analysis/SymbolManager.cpp
index f8f8555..d0099e1 100644
--- a/lib/Analysis/SymbolManager.cpp
+++ b/lib/Analysis/SymbolManager.cpp
@@ -158,3 +158,21 @@
}
SymbolManager::~SymbolManager() {}
+
+void SymbolReaper::markLive(SymbolRef sym) {
+ TheLiving = F.Add(TheLiving, sym);
+ TheDead = F.Remove(TheDead, sym);
+}
+
+bool SymbolReaper::maybeDead(SymbolRef sym) {
+ if (isLive(sym))
+ return false;
+
+ TheDead = F.Add(TheDead, sym);
+ return true;
+}
+
+bool SymbolReaper::isLive(SymbolRef sym) {
+ return TheLiving.contains(sym);
+}
+