[PATCH] D83657: [clangd] Add metrics for recovery-expr type propagation.

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
hokein added a reviewer: sammccall.
Herald added subscribers: usaxena95, kadircet, arphaman, jkorous, MaskRay, ilya-biryukov.
Herald added a project: clang.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83657

Files:
  clang-tools-extra/clangd/Selection.cpp
  clang-tools-extra/clangd/unittests/SelectionTests.cpp


Index: clang-tools-extra/clangd/unittests/SelectionTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/SelectionTests.cpp
+++ clang-tools-extra/clangd/unittests/SelectionTests.cpp
@@ -453,6 +453,8 @@
   auto T = makeSelectionTree(Code, AST);
   EXPECT_THAT(Tracer.takeMetric("selection_recovery"),
               testing::ElementsAreArray({1}));
+  EXPECT_THAT(Tracer.takeMetric("selection_recovery_type"),
+              testing::ElementsAreArray({1}));
 }
 
 // FIXME: Doesn't select the binary operator node in
Index: clang-tools-extra/clangd/Selection.cpp
===================================================================
--- clang-tools-extra/clangd/Selection.cpp
+++ clang-tools-extra/clangd/Selection.cpp
@@ -41,10 +41,13 @@
 void recordMetrics(const SelectionTree &S) {
   static constexpr trace::Metric SelectionUsedRecovery(
       "selection_recovery", trace::Metric::Distribution);
+  static constexpr trace::Metric RecoveryType("selection_recovery_type",
+                                              trace::Metric::Distribution);
   const auto *Common = S.commonAncestor();
   for (const auto *N = Common; N; N = N->Parent) {
-    if (N->ASTNode.get<RecoveryExpr>()) {
+    if (const auto *RE = N->ASTNode.get<RecoveryExpr>()) {
       SelectionUsedRecovery.record(1); // used recovery ast.
+      RecoveryType.record(RE->isTypeDependent() ? 0 : 1);
       return;
     }
   }


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