[clang] aeda856 - [clang][modules-driver] Apply rule-of-five to CompilationGraph types (NFC) (#191430)

[via cfe-commits]

Author: Naveen Seth Hanig
Date: 2026-04-10T17:12:42+02:00
New Revision: aeda856d2fafcbc969979abfb88010ce0fe90452

URL: https://github.com/llvm/llvm-project/commit/aeda856d2fafcbc969979abfb88010ce0fe90452
DIFF: https://github.com/llvm/llvm-project/commit/aeda856d2fafcbc969979abfb88010ce0fe90452.diff

LOG: [clang][modules-driver] Apply rule-of-five to CompilationGraph types (NFC) (#191430)

CompilationGraph owns all nodes and edges via `unique_ptr`, but exposes
pointers to the underlying objects. Make them non-movable to maintain
stable addresses.
Make them non-copyable since we don't want to copy `Command` objects
they hold or create duplicate root nodes.

Apply full rule-of-five to `CompilationGraph`.

Added: 
    

Modified: 
    clang/lib/Driver/ModulesDriver.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/Driver/ModulesDriver.cpp b/clang/lib/Driver/ModulesDriver.cpp
index 783f2270c4e0f..afccdb104796a 100644
--- a/clang/lib/Driver/ModulesDriver.cpp
+++ b/clang/lib/Driver/ModulesDriver.cpp
@@ -749,6 +749,8 @@ class CGNode : public CGNodeBase {
   CGNode(const NodeKind K) : Kind(K) {}
   CGNode(const CGNode &) = delete;
   CGNode(CGNode &&) = delete;
+  CGNode &operator=(const CGNode &) = delete;
+  CGNode &operator=(CGNode &&) = delete;
   virtual ~CGNode() = 0;
 
   NodeKind getKind() const { return Kind; }
@@ -893,6 +895,10 @@ class CGEdge : public CGEdgeBase {
   };
 
   CGEdge(CGNode &N, EdgeKind K) : CGEdgeBase(N), Kind(K) {}
+  CGEdge(const CGEdge &) = delete;
+  CGEdge &operator=(const CGEdge &) = delete;
+  CGEdge(CGEdge &&) = delete;
+  CGEdge &operator=(CGEdge &&) = delete;
 
   EdgeKind getKind() const { return Kind; }
 
@@ -909,7 +915,10 @@ class CompilationGraph : public CGBase {
 public:
   CompilationGraph() = default;
   CompilationGraph(const CompilationGraph &) = delete;
+  CompilationGraph &operator=(const CompilationGraph &) = delete;
   CompilationGraph(CompilationGraph &&G) = default;
+  CompilationGraph &operator=(CompilationGraph &&) = default;
+  ~CompilationGraph() = default;
 
   CGNode &getRoot() const {
     assert(Root && "Root node has not yet been created!");