https://github.com/Backl1ght updated
https://github.com/llvm/llvm-project/pull/96431
>From ce317e4c2f1bca3e81b81ac8909c576b14a16a6b Mon Sep 17 00:00:00 2001
From: Backl1ght <backlight....@gmail.com>
Date: Sun, 23 Jun 2024 21:44:03 +0800
Subject: [PATCH] fix
---
clang/docs/ReleaseNotes.rst | 1 +
clang/lib/Sema/SemaOverload.cpp | 2 +-
clang/test/SemaCXX/lambda-call.cpp | 11 +++++++++++
3 files changed, 13 insertions(+), 1 deletion(-)
create mode 100644 clang/test/SemaCXX/lambda-call.cpp
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index da967fcdda808..feba3c7ba8d77 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -935,6 +935,7 @@ Bug Fixes to C++ Support
- Fix an assertion failure caused by parsing a lambda used as a default
argument for the value of a
forward-declared class. (#GH93512).
- Fixed a bug in access checking inside return-type-requirement of compound
requirements. (#GH93788).
+- Fixed an assertion failure about invalid conversion when calling lambda.
(#GH96205).
Bug Fixes to AST Handling
^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index ee921c825b2a4..f8f55ce6526ac 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -12169,7 +12169,7 @@ static void NoteFunctionCandidate(Sema &S,
OverloadCandidate *Cand,
case ovl_fail_bad_conversion: {
unsigned I = (Cand->IgnoreObjectArgument ? 1 : 0);
for (unsigned N = Cand->Conversions.size(); I != N; ++I)
- if (Cand->Conversions[I].isBad())
+ if (Cand->Conversions[I].isInitialized() && Cand->Conversions[I].isBad())
return DiagnoseBadConversion(S, Cand, I, TakingCandidateAddress);
// FIXME: this currently happens when we're called from SemaInit
diff --git a/clang/test/SemaCXX/lambda-call.cpp
b/clang/test/SemaCXX/lambda-call.cpp
new file mode 100644
index 0000000000000..2c5b8b9a4b176
--- /dev/null
+++ b/clang/test/SemaCXX/lambda-call.cpp
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -std=c++23 -verify -fsyntax-only %s
+
+namespace GH96205 {
+
+void f() {
+ auto l = [](this auto& self, int) -> void { self("j"); }; // expected-error
{{no matching function for call to object of type}} \
+ // expected-note
{{no known conversion from 'const char[2]' to 'int'}}
+ l(3); // expected-note {{requested here}}
+}
+
+}
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