From 003fa6ffee88521102d9609dc0166b903e946597 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Tue, 28 Jun 2022 10:32:56 +0300
Subject: [PATCH] Remove back template lambda support in Promise.

---
 tdutils/td/utils/Promise.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tdutils/td/utils/Promise.h b/tdutils/td/utils/Promise.h
index 7746bc0ae..8f9c5fe71 100644
--- a/tdutils/td/utils/Promise.h
+++ b/tdutils/td/utils/Promise.h
@@ -92,7 +92,7 @@ class LambdaPromise : public PromiseInterface<ValueT> {
  public:
   void set_value(ValueT &&value) override {
     CHECK(state_.get() == State::Ready);
-    func_(std::move(value));
+    do_ok(std::move(value));
     state_ = State::Complete;
   }
 
@@ -128,6 +128,14 @@ class LambdaPromise : public PromiseInterface<ValueT> {
   std::enable_if_t<!is_callable<F, Result<ValueT>>::value, void> do_error(Y &&status) {
     func_(Auto());
   }
+  template <class F = FunctionT>
+  std::enable_if_t<is_callable<F, Result<ValueT>>::value, void> do_ok(ValueT &&value) {
+    func_(Result<ValueT>(std::move(value)));
+  }
+  template <class F = FunctionT>
+  std::enable_if_t<!is_callable<F, Result<ValueT>>::value, void> do_ok(ValueT &&value) {
+    func_(std::move(value));
+  }
 };
 }  // namespace detail