[lldb] Use std:::string::find with std::string_view (NFC)

[kazutakahirata]

std::string::find accepts anything that can be converted to
std::string_view starting in C++17. Since StringRef can be converted
to std::string_view, we do not need to create a temporary instance of
std::string here.

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Kazu Hirata (kazutakahirata)

Changes

std::string::find accepts anything that can be converted to
std::string_view starting in C++17. Since StringRef can be converted
to std::string_view, we do not need to create a temporary instance of
std::string here.

---

Full diff: https://github.com/llvm/llvm-project/pull/139679.diff

1 Files Affected:

• (modified) lldb/source/Interpreter/Options.cpp (+1-1)

diff --git a/lldb/source/Interpreter/Options.cpp b/lldb/source/Interpreter/Options.cpp
index fdadba62987d3..4cf68db466158 100644
--- a/lldb/source/Interpreter/Options.cpp
+++ b/lldb/source/Interpreter/Options.cpp
@@ -1076,7 +1076,7 @@ llvm::Expected<Args> Options::ParseAlias(const Args &args,
 
     if (!input_line.empty()) {
       llvm::StringRef tmp_arg = args_copy[idx].ref();
-      size_t pos = input_line.find(std::string(tmp_arg));
+      size_t pos = input_line.find(tmp_arg);
       if (pos != std::string::npos)
         input_line.erase(pos, tmp_arg.size());
     }