From 5c3f188beffb972571a011478ad5a28e89a186a3 Mon Sep 17 00:00:00 2001
From: Clemens Wasser <clemens.wasser@gmail.com>
Date: Tue, 25 Jan 2022 21:39:49 +0100
Subject: GlobalNinjaGenerator: Add EncodeLiteralInplace which doesn't copy

---
 Source/cmGlobalNinjaGenerator.cxx | 16 ++++++++++------
 Source/cmGlobalNinjaGenerator.h   |  1 +
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/Source/cmGlobalNinjaGenerator.cxx b/Source/cmGlobalNinjaGenerator.cxx
index 19c4ee3..8fb0d1d 100644
--- a/Source/cmGlobalNinjaGenerator.cxx
+++ b/Source/cmGlobalNinjaGenerator.cxx
@@ -166,14 +166,18 @@ std::string cmGlobalNinjaGenerator::EncodeRuleName(std::string const& name)
 std::string cmGlobalNinjaGenerator::EncodeLiteral(const std::string& lit)
 {
   std::string result = lit;
-  cmSystemTools::ReplaceString(result, "$", "$$");
-  cmSystemTools::ReplaceString(result, "\n", "$\n");
+  EncodeLiteralInplace(result);
+  return result;
+}
+
+void cmGlobalNinjaGenerator::EncodeLiteralInplace(std::string& lit)
+{
+  cmSystemTools::ReplaceString(lit, "$", "$$");
+  cmSystemTools::ReplaceString(lit, "\n", "$\n");
   if (this->IsMultiConfig()) {
-    cmSystemTools::ReplaceString(result,
-                                 cmStrCat('$', this->GetCMakeCFGIntDir()),
+    cmSystemTools::ReplaceString(lit, cmStrCat('$', this->GetCMakeCFGIntDir()),
                                  this->GetCMakeCFGIntDir());
   }
-  return result;
 }
 
 std::string cmGlobalNinjaGenerator::EncodePath(const std::string& path)
@@ -185,7 +189,7 @@ std::string cmGlobalNinjaGenerator::EncodePath(const std::string& path)
   else
     std::replace(result.begin(), result.end(), '/', '\\');
 #endif
-  result = this->EncodeLiteral(result);
+  this->EncodeLiteralInplace(result);
   cmSystemTools::ReplaceString(result, " ", "$ ");
   cmSystemTools::ReplaceString(result, ":", "$:");
   return result;
diff --git a/Source/cmGlobalNinjaGenerator.h b/Source/cmGlobalNinjaGenerator.h
index 84fc06c..ac66944 100644
--- a/Source/cmGlobalNinjaGenerator.h
+++ b/Source/cmGlobalNinjaGenerator.h
@@ -77,6 +77,7 @@ public:
 
   static std::string EncodeRuleName(std::string const& name);
   std::string EncodeLiteral(const std::string& lit);
+  void EncodeLiteralInplace(std::string& lit);
   std::string EncodePath(const std::string& path);
 
   std::unique_ptr<cmLinkLineComputer> CreateLinkLineComputer(
-- 
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