From b25c2518b550934e1a16f9dd16f6fd86fe583b4b Mon Sep 17 00:00:00 2001
From: Gregor Jasny <gjasny@googlemail.com>
Date: Sun, 17 Dec 2023 20:01:40 +0100
Subject: [PATCH] WIP

---
 push/src/detail/label_encoder.h           | 2 +-
 push/src/gateway.cc                       | 3 +--
 push/src/label_encoder.cpp                | 3 +--
 push/tests/internal/label_encoder_test.cc | 3 +--
 4 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/push/src/detail/label_encoder.h b/push/src/detail/label_encoder.h
index 03fd0204..35713450 100644
--- a/push/src/detail/label_encoder.h
+++ b/push/src/detail/label_encoder.h
@@ -7,7 +7,7 @@
 namespace prometheus {
 namespace detail {
 
-std::ostream &operator<<(std::ostream &os, const Label &label);
+void encodeLabel(std::ostream &os, const Label &label);
 
 }
 }
\ No newline at end of file
diff --git a/push/src/gateway.cc b/push/src/gateway.cc
index ee4cb623..50bc3fdd 100644
--- a/push/src/gateway.cc
+++ b/push/src/gateway.cc
@@ -30,8 +30,7 @@ Gateway::Gateway(const std::string& host, const std::string& port,
 
   std::stringstream labelStream;
   for (auto& label : labels) {
-    using detail::operator<<;
-    labelStream << label;
+    detail::encodeLabel(labelStream, label);
   }
   labels_ = labelStream.str();
 }
diff --git a/push/src/label_encoder.cpp b/push/src/label_encoder.cpp
index d60d9941..fe5fe8d0 100644
--- a/push/src/label_encoder.cpp
+++ b/push/src/label_encoder.cpp
@@ -5,9 +5,8 @@
 namespace prometheus {
 namespace detail {
 
-std::ostream &operator<<(std::ostream &os, const Label &label) {
+void detail::encodeLabel(std::ostream &os, const Label &label) {
   os << "/" << label.first << "/" << label.second;
-  return os;
 }
 
 }}
diff --git a/push/tests/internal/label_encoder_test.cc b/push/tests/internal/label_encoder_test.cc
index 34e1a0ed..f1a45f1c 100644
--- a/push/tests/internal/label_encoder_test.cc
+++ b/push/tests/internal/label_encoder_test.cc
@@ -11,9 +11,8 @@ namespace {
 class LabelEncoderTest : public testing::Test {
  protected:
         std::string Encode(const Label& label) {
-          using detail::operator<<;
         std::strstream ss;
-        ss << label;
+        detail::encodeLabel(ss, label);
         return ss.str();
         }
 };