https://github.com/bnbarham updated
https://github.com/llvm/llvm-project/pull/126151
>From 322959db3c22fd4053c31f4f4c2008bd726f89ce Mon Sep 17 00:00:00 2001
From: Ben Barham <ben_bar...@apple.com>
Date: Thu, 6 Feb 2025 15:17:56 -0800
Subject: [PATCH] [Index] Skip adding call relations to deduction guides
Deduction guides have no name and we already skip adding occurrences to
them for that reason. Also skip adding any relations to them.
---
clang/lib/Index/IndexBody.cpp | 3 +++
clang/test/Index/index-deduction-guide.cpp | 10 ++++++++++
2 files changed, 13 insertions(+)
create mode 100644 clang/test/Index/index-deduction-guide.cpp
diff --git a/clang/lib/Index/IndexBody.cpp b/clang/lib/Index/IndexBody.cpp
index c18daf7faa74979..f1dc4d5831ce746 100644
--- a/clang/lib/Index/IndexBody.cpp
+++ b/clang/lib/Index/IndexBody.cpp
@@ -130,6 +130,9 @@ class BodyIndexer : public RecursiveASTVisitor<BodyIndexer>
{
void addCallRole(SymbolRoleSet &Roles,
SmallVectorImpl<SymbolRelation> &Relations) {
+ if (isa<CXXDeductionGuideDecl>(ParentDC))
+ return;
+
Roles |= (unsigned)SymbolRole::Call;
if (auto *FD = dyn_cast<FunctionDecl>(ParentDC))
Relations.emplace_back((unsigned)SymbolRole::RelationCalledBy, FD);
diff --git a/clang/test/Index/index-deduction-guide.cpp
b/clang/test/Index/index-deduction-guide.cpp
new file mode 100644
index 000000000000000..a29162e8588e8a1
--- /dev/null
+++ b/clang/test/Index/index-deduction-guide.cpp
@@ -0,0 +1,10 @@
+// RUN: c-index-test core -print-source-symbols -- %s -std=gnu++17 | FileCheck
%s
+
+template<typename T>
+typename T::type declval() {}
+template <typename T> struct Test;
+template <typename C, typename T = decltype(declval<C>().d())> Test(C &) ->
Test<T>;
+// CHECK: [[@LINE-1]]:45 | function/C | declval
+// CHECK-NOT: RelCall
+// CHECK: [[@LINE-3]]:77 | struct(Gen)/C++ | Test
+// CHECK: [[@LINE-4]]:64 | struct(Gen)/C++ | Test
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