https://github.com/anutosh491 updated https://github.com/llvm/llvm-project/pull/153560
>From 6e7564602e7a5b608a4d1cd788e66425682e82db Mon Sep 17 00:00:00 2001 From: anutosh491 <andersonbhat...@gmail.com> Date: Thu, 14 Aug 2025 14:25:05 +0530 Subject: [PATCH 1/3] Fix unknown error while starting lldb's C/C++ repl --- lldb/source/Commands/CommandObjectExpression.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lldb/source/Commands/CommandObjectExpression.cpp b/lldb/source/Commands/CommandObjectExpression.cpp index c5b91678103d5..57b56ce7eb36e 100644 --- a/lldb/source/Commands/CommandObjectExpression.cpp +++ b/lldb/source/Commands/CommandObjectExpression.cpp @@ -640,9 +640,15 @@ void CommandObjectExpression::DoExecute(llvm::StringRef command, repl_sp->SetValueObjectDisplayOptions(m_varobj_options); } + if (!expr.empty()) { + result.GetOutputStream().Printf( + "Warning: trailing input is ignored in --repl mode\n"); + } + IOHandlerSP io_handler_sp(repl_sp->GetIOHandler()); io_handler_sp->SetIsDone(false); debugger.RunIOHandlerAsync(io_handler_sp); + return; } else { repl_error = Status::FromErrorStringWithFormat( "Couldn't create a REPL for %s", >From 22f6e4d36a53d1bbbf0346ea70f11e3042438d60 Mon Sep 17 00:00:00 2001 From: anutosh491 <andersonbhat...@gmail.com> Date: Thu, 14 Aug 2025 15:19:51 +0530 Subject: [PATCH 2/3] formatting --- lldb/source/Commands/CommandObjectExpression.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lldb/source/Commands/CommandObjectExpression.cpp b/lldb/source/Commands/CommandObjectExpression.cpp index 57b56ce7eb36e..65365745ea454 100644 --- a/lldb/source/Commands/CommandObjectExpression.cpp +++ b/lldb/source/Commands/CommandObjectExpression.cpp @@ -642,7 +642,7 @@ void CommandObjectExpression::DoExecute(llvm::StringRef command, if (!expr.empty()) { result.GetOutputStream().Printf( - "Warning: trailing input is ignored in --repl mode\n"); + "Warning: trailing input is ignored in --repl mode\n"); } IOHandlerSP io_handler_sp(repl_sp->GetIOHandler()); >From 0bd1ee6da53f6a997bb7400587844e533c006056 Mon Sep 17 00:00:00 2001 From: anutosh491 <andersonbhat...@gmail.com> Date: Mon, 18 Aug 2025 12:53:54 +0530 Subject: [PATCH 3/3] Add tests to trigger correct warning --- lldb/test/API/repl/clang/TestClangREPL.py | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/lldb/test/API/repl/clang/TestClangREPL.py b/lldb/test/API/repl/clang/TestClangREPL.py index 97d91d1b8f7a5..3152018865b1e 100644 --- a/lldb/test/API/repl/clang/TestClangREPL.py +++ b/lldb/test/API/repl/clang/TestClangREPL.py @@ -56,6 +56,16 @@ def test_basic_completion(self): self.quit() + # Re-enter the REPL with trailing input to trigger warning. + self.child.send("expression --repl -l c -- 3 + 3\n") + self.child.expect_exact("Warning: trailing input is ignored in --repl mode\n") + self.child.expect_exact("1>") + + # Evaluate another expression after warning. + self.expect_repl("4 + 4", substrs=["(int) $3 = 8"]) + + self.quit() + # PExpect uses many timeouts internally and doesn't play well # under ASAN on a loaded machine.. @skipIfAsan _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits