mojo/util/capture_util.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_UTIL_CAPTURE_UTIL_H_
   6 #define MOJO_UTIL_CAPTURE_UTIL_H_
   7
   8 #include "mojo/public/cpp/bindings/lib/template_util.h"
   9
  10 namespace mojo {
  11
  12 template <typename T1>
  13 mojo::Callback<void(T1)> Capture(T1* t1) {
  14   return [t1](T1 got_t1) { *t1 = mojo::internal::Forward(got_t1); };
  15 }
  16
  17 template <typename T1, typename T2>
  18 mojo::Callback<void(T1, T2)> Capture(T1* t1, T2* t2) {
  19   return [t1, t2](T1 got_t1, T2 got_t2) {
  20     *t1 = mojo::internal::Forward(got_t1);
  21     *t2 = mojo::internal::Forward(got_t2);
  22   };
  23 }
  24
  25 template <typename T1, typename T2, typename T3>
  26 mojo::Callback<void(T1, T2, T3)> Capture(T1* t1, T2* t2, T3* t3) {
  27   return [t1, t2, t3](T1 got_t1, T2 got_t2, T3 got_t3) {
  28     *t1 = mojo::internal::Forward(got_t1);
  29     *t2 = mojo::internal::Forward(got_t2);
  30     *t3 = mojo::internal::Forward(got_t3);
  31   };
  32 }
  33
  34 }  // namespace mojo
  35
  36 #endif  // MOJO_UTIL_CAPTURE_UTIL_H_