From 0c19bdd7725028fe07751bbef02bdf1326829591 Mon Sep 17 00:00:00 2001
From: gabime <gmelman1@gmail.com>
Date: Sun, 24 Jun 2018 01:32:39 +0300
Subject: pattern per sink and pattern caching

---
 include/spdlog/formatter.h | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

(limited to 'include/spdlog/formatter.h')

diff --git a/include/spdlog/formatter.h b/include/spdlog/formatter.h
index 8641491d..af54e88c 100644
--- a/include/spdlog/formatter.h
+++ b/include/spdlog/formatter.h
@@ -5,6 +5,7 @@
 
 #pragma once
 
+#include "fmt/fmt.h"
 #include "spdlog/details/log_msg.h"
 
 #include <memory>
@@ -12,31 +13,32 @@
 #include <vector>
 
 namespace spdlog {
-namespace details {
-class flag_formatter;
-}
 
 class formatter
 {
 public:
     virtual ~formatter() = default;
-    virtual void format(details::log_msg &msg) = 0;
+    virtual void format(const details::log_msg &msg, fmt::memory_buffer &dest) = 0;
 };
 
+namespace details {
+class flag_formatter;
+}
+
 class pattern_formatter SPDLOG_FINAL : public formatter
 {
 public:
     explicit pattern_formatter(const std::string &pattern, pattern_time_type pattern_time = pattern_time_type::local,
         std::string eol = spdlog::details::os::default_eol);
-    pattern_formatter(const pattern_formatter &) = delete;
-    pattern_formatter &operator=(const pattern_formatter &) = delete;
-    void format(details::log_msg &msg) override;
+    pattern_formatter(const pattern_formatter &) = default;
+    pattern_formatter &operator=(const pattern_formatter &) = default;
+    void format(const details::log_msg &msg, fmt::memory_buffer &dest) override;
 
 private:
     const std::string eol_;
     const pattern_time_type pattern_time_;
     std::vector<std::unique_ptr<details::flag_formatter>> formatters_;
-    std::tm get_time(details::log_msg &msg);
+    std::tm get_time(const details::log_msg &msg);
     void handle_flag(char flag);
     void compile_pattern(const std::string &pattern);
 };
-- 
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