From c97cc1d67b8e5814f08107f2a7add3f66b695c77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jean-Micha=C3=ABl=20Celerier?=
 <jeanmichael.celerier@gmail.com>
Date: Thu, 2 Jan 2025 13:20:34 -0500
Subject: [PATCH] concepts: start work on file output

---
 include/avnd/concepts/file_port.hpp |  2 ++
 include/halp/file_port.hpp          | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/include/avnd/concepts/file_port.hpp b/include/avnd/concepts/file_port.hpp
index 6e7a7e53..7c0c916a 100644
--- a/include/avnd/concepts/file_port.hpp
+++ b/include/avnd/concepts/file_port.hpp
@@ -30,4 +30,6 @@ concept raw_file_port = requires(T t) {
                         };
 
 AVND_DEFINE_TAG(file_watch)
+AVND_DEFINE_TAG(file_load)
+AVND_DEFINE_TAG(file_create)
 }
diff --git a/include/halp/file_port.hpp b/include/halp/file_port.hpp
index b985c067..2fb61cef 100644
--- a/include/halp/file_port.hpp
+++ b/include/halp/file_port.hpp
@@ -10,6 +10,7 @@
 #include <cstddef>
 #include <string_view>
 #include <vector>
+
 HALP_MODULE_EXPORT
 namespace halp
 {
@@ -39,6 +40,15 @@ struct mmap_file_view
   };
 };
 
+struct output_file_view
+{
+  std::string_view filename;
+  enum
+  {
+    file_create
+  };
+};
+
 template <halp::static_string lit, typename FileType = text_file_view>
 struct file_port
 {
@@ -51,4 +61,16 @@ struct file_port
 
   FileType file;
 };
+
+template <halp::static_string lit>
+struct file_write_port
+{
+  using file_type = output_file_view;
+  static clang_buggy_consteval auto name() { return std::string_view{lit.value}; }
+
+  HALP_INLINE_FLATTEN operator output_file_view&() noexcept { return file; }
+  HALP_INLINE_FLATTEN operator const output_file_view&() const noexcept { return file; }
+
+  output_file_view file;
+};
 }