Added type "CFG::Edge" to encapsulate the notion of directed-edges
within source-level CFGs.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42098 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/CFG.h b/include/clang/AST/CFG.h
index f940a53..2772d18 100644
--- a/include/clang/AST/CFG.h
+++ b/include/clang/AST/CFG.h
@@ -212,6 +212,33 @@
CFGBlock* getIndirectGotoBlock() { return IndirectGotoBlock; }
const CFGBlock* getIndirectGotoBlock() const { return IndirectGotoBlock; }
+ // Edges
+
+ class Edge {
+ const CFGBlock* Src;
+ const CFGBlock* Dst;
+ public:
+ Edge(const CFGBlock* src, const CFGBlock* dst) : Src(src), Dst(dst) {}
+ Edge(const Edge& RHS) : Src(RHS.Src), Dst(RHS.Dst) {}
+
+ Edge& operator=(const Edge& RHS) {
+ Src = RHS.Src;
+ Dst = RHS.Dst;
+ return *this;
+ }
+
+ const CFGBlock* getSrc() const { return Src; }
+ const CFGBlock* getDst() const { return Dst; }
+
+ bool operator==(const Edge& RHS) const {
+ return Src == RHS.Src && Dst == RHS.Dst;
+ }
+
+ bool operator!=(const Edge& RHS) const {
+ return !(*this == RHS);
+ }
+ };
+
// Utility
CFGBlock* createBlock();