[Lldb-commits] [PATCH] D150914: [lldb][NFCI] Pre-allocate storage in ObjCLanguage::MethodName::GetFullNameWithoutCategory

[Alex Langford via Phabricator via lldb-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rGe8d3f061ba41: [lldb][NFCI] Pre-allocate storage in ObjCLanguage::MethodName… (authored by bulbazord).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150914/new/

https://reviews.llvm.org/D150914

Files:
  lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp


Index: lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp
===================================================================
--- lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp
+++ lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp
@@ -152,7 +152,15 @@
 
   llvm::StringRef class_name = GetClassName();
   llvm::StringRef selector_name = GetSelector();
+
+  // Compute the total size to avoid reallocations
+  // class name + selector name + '[' + ' ' + ']'
+  size_t total_size = class_name.size() + selector_name.size() + 3;
+  if (m_type != eTypeUnspecified)
+    total_size++; // For + or -
+
   std::string name_sans_category;
+  name_sans_category.reserve(total_size);
 
   if (m_type == eTypeClassMethod)
     name_sans_category += '+';


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