[clang-tools-extra] 6a3b10e - [change-namespace][NFC] Clean up joinNamespaces

[Nathan James via cfe-commits]

Author: Nathan James
Date: 2020-07-09T11:29:49+01:00
New Revision: 6a3b10e294feceb94064f32450de5c068a13dd03

URL: https://github.com/llvm/llvm-project/commit/6a3b10e294feceb94064f32450de5c068a13dd03
DIFF: https://github.com/llvm/llvm-project/commit/6a3b10e294feceb94064f32450de5c068a13dd03.diff

LOG: [change-namespace][NFC] Clean up joinNamespaces

Added: 
    

Modified: 
    clang-tools-extra/clang-change-namespace/ChangeNamespace.cpp

Removed: 
    


################################################################################
diff  --git a/clang-tools-extra/clang-change-namespace/ChangeNamespace.cpp b/clang-tools-extra/clang-change-namespace/ChangeNamespace.cpp
index e2a70db4102b..61ae7c4cc703 100644
--- a/clang-tools-extra/clang-change-namespace/ChangeNamespace.cpp
+++ b/clang-tools-extra/clang-change-namespace/ChangeNamespace.cpp
@@ -19,14 +19,8 @@ namespace change_namespace {
 
 namespace {
 
-inline std::string
-joinNamespaces(const llvm::SmallVectorImpl<StringRef> &Namespaces) {
-  if (Namespaces.empty())
-    return "";
-  std::string Result(Namespaces.front());
-  for (auto I = Namespaces.begin() + 1, E = Namespaces.end(); I != E; ++I)
-    Result += ("::" + *I).str();
-  return Result;
+inline std::string joinNamespaces(ArrayRef<StringRef> Namespaces) {
+  return llvm::join(Namespaces, "::");
 }
 
 // Given "a::b::c", returns {"a", "b", "c"}.