From 674e17c2a895eff6729357d8c10db709ac368b79 Mon Sep 17 00:00:00 2001
From: chriseth <chris@ethereum.org>
Date: Mon, 29 Oct 2018 15:12:02 +0100
Subject: Performance: Replace string by special single-copy YulString class.

---
 libyul/optimiser/Substitution.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'libyul/optimiser/Substitution.h')

diff --git a/libyul/optimiser/Substitution.h b/libyul/optimiser/Substitution.h
index b734cdca..59ee4620 100644
--- a/libyul/optimiser/Substitution.h
+++ b/libyul/optimiser/Substitution.h
@@ -22,9 +22,9 @@
 
 #include <libyul/optimiser/ASTCopier.h>
 
-#include <string>
+#include <libyul/YulString.h>
+
 #include <map>
-#include <set>
 
 namespace dev
 {
@@ -37,13 +37,13 @@ namespace yul
 class Substitution: public ASTCopier
 {
 public:
-	Substitution(std::map<std::string, Expression const*> const& _substitutions):
+	Substitution(std::map<YulString, Expression const*> const& _substitutions):
 		m_substitutions(_substitutions)
 	{}
 	virtual Expression translate(Expression const& _expression) override;
 
 private:
-	std::map<std::string, Expression const*> const& m_substitutions;
+	std::map<YulString, Expression const*> const& m_substitutions;
 };
 
 }
-- 
cgit