[lldb] Refactor string manipulation in Debugger.cpp

[aabhinavg]

Summary of Changes:

Replaced the ineffective call to substr with a more efficient use of resize to truncate the string.
Adjusted the code to use 'resize' instead of 'substr' for better performance and readability.
Removed unwanted file from the previous commit.
Fixes: #91209

[llvmbot]

@llvm/pr-subscribers-lldb

Author: None (aabhinavg)

Changes

Summary of Changes:

Replaced the ineffective call to substr with a more efficient use of resize to truncate the string.
Adjusted the code to use 'resize' instead of 'substr' for better performance and readability.
Removed unwanted file from the previous commit.
Fixes: #91209

---

Full diff: https://github.com/llvm/llvm-project/pull/92565.diff

1 Files Affected:

• (modified) lldb/source/Core/Debugger.cpp (+1-1)

diff --git a/lldb/source/Core/Debugger.cpp b/lldb/source/Core/Debugger.cpp
index 9951fbcd3e7c3..70303173925e3 100644
--- a/lldb/source/Core/Debugger.cpp
+++ b/lldb/source/Core/Debugger.cpp
@@ -2067,7 +2067,7 @@ void Debugger::HandleProgressEvent(const lldb::EventSP &event_sp) {
   const uint32_t term_width = GetTerminalWidth();
   const uint32_t ellipsis = 3;
   if (message.size() + ellipsis >= term_width)
-    message = message.substr(0, term_width - ellipsis);
+    message.resize(message.size() - ellipsis);
 
   const bool use_color = GetUseColor();
   llvm::StringRef ansi_prefix = GetShowProgressAnsiPrefix();

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[adrian-prantl]

Can you explain why term_width does not appear in the new patch?

[JDevlieghere]

@aabhinavg Please let me know when you've changed the GitHub private e-mail address setting and I'd be happy to merge this for you.