retinify · SensuiYagi · Jan 29, 2026 · Jan 29, 2026
diff --git a/cmake/retinify.hpp.in b/cmake/retinify.hpp.in
@@ -8,6 +8,8 @@
 #include "retinify/geometry.hpp"
 #include "retinify/io.hpp"
 #include "retinify/logging.hpp"
+#include "retinify/nocopymove.hpp"
+#include "retinify/nothrow.hpp"
 #include "retinify/paths.hpp"
 #include "retinify/pipeline.hpp"
 #include "retinify/status.hpp"

diff --git a/retinify/include/retinify/nothrow.hpp b/retinify/include/retinify/nothrow.hpp
@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: Copyright (c) 2025 Sensui Yagi. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include <exception>
+#include <type_traits>
+#include <utility>
+
+#include "retinify/logging.hpp"
+#include "retinify/status.hpp"
+
+namespace retinify
+{
+/// @brief
+/// Executes a function and converts any exception into a Status.
+/// @tparam Function
+/// The type of the function to execute.
+/// @param function
+/// The function to execute.
+/// @return
+/// A Status object that indicates whether the operation was successful
+template <typename Function> auto NoThrow(Function &&function) noexcept -> Status
+{
+    static_assert(std::is_same_v<std::invoke_result_t<Function>, Status>, "NoThrow requires Function to return Status");
+
+    try
+    {
+        return std::forward<Function>(function)();
+    }
+    catch (const std::exception &ex)
+    {
+        LogError(ex.what());
+        return Status{StatusCategory::RETINIFY, StatusCode::FAIL};
+    }
+    catch (...)
+    {
+        LogError("Unknown exception caught");
+        return Status{StatusCategory::RETINIFY, StatusCode::FAIL};
+    }
+}
+} // namespace retinify
diff --git a/retinify/src/io.cpp b/retinify/src/io.cpp
@@ -3,6 +3,7 @@
 
 #include "retinify/io.hpp"
 #include "retinify/logging.hpp"
+#include "retinify/nothrow.hpp"
 
 #include <array>
 #include <cstdint>
@@ -275,13 +276,12 @@ template <std::size_t Rows, std::size_t Cols> [[nodiscard]] auto DeserializeMatr
 
 auto SaveCalibrationParameters(const char *filename, const CalibrationParameters &parameters) noexcept -> Status
 {
-    if (IsFilenameEmpty(filename))
-    {
-        return Status(StatusCategory::USER, StatusCode::INVALID_ARGUMENT);
-    }
+    return NoThrow([&]() -> Status {
+        if (IsFilenameEmpty(filename))
+        {
+            return Status{StatusCategory::USER, StatusCode::INVALID_ARGUMENT};
+        }
 
-    try
-    {
         const std::filesystem::path targetPath(filename);
 
         const auto dirStatus = EnsureParentDirectory(targetPath);
@@ -290,10 +290,10 @@ auto SaveCalibrationParameters(const char *filename, const CalibrationParameters
             return dirStatus;
         }
 
-        std::ofstream out(targetPath, std::ios::trunc);
+        std::ofstream out{targetPath, std::ios::trunc};
         if (!out.is_open())
         {
-            return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
+            return Status{StatusCategory::SYSTEM, StatusCode::FAIL};
         }
 
         const auto json = SerializeCalibration(parameters);
@@ -302,58 +302,39 @@ auto SaveCalibrationParameters(const char *filename, const CalibrationParameters
         out.flush();
         if (!out.good())
         {
-            return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
+            return Status{StatusCategory::SYSTEM, StatusCode::FAIL};
         }
 
-        return Status();
-    }
-    catch (const std::exception &e)
-    {
-        LogError(e.what());
-        return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
-    }
-    catch (...)
-    {
-        return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
-    }
+        return Status{};
+    });
 }
 
 auto LoadCalibrationParameters(const char *filename, CalibrationParameters &parameters) noexcept -> Status
 {
-    if (IsFilenameEmpty(filename))
-    {
-        return Status(StatusCategory::USER, StatusCode::INVALID_ARGUMENT);
-    }
+    return NoThrow([&]() -> Status {
+        if (IsFilenameEmpty(filename))
+        {
+            return Status{StatusCategory::USER, StatusCode::INVALID_ARGUMENT};
+        }
 
-    try
-    {
         std::ifstream in(filename, std::ios::in);
         if (!in.is_open())
         {
-            return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
+            return Status{StatusCategory::SYSTEM, StatusCode::FAIL};
         }
 
         const auto doc = nlohmann::json::parse(in, nullptr, false);
         if (doc.is_discarded())
         {
-            return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
+            return Status{StatusCategory::SYSTEM, StatusCode::FAIL};
         }
 
         if (!DeserializeCalibration(doc, parameters))
         {
-            return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
+            return Status{StatusCategory::SYSTEM, StatusCode::FAIL};
         }
 
-        return Status();
-    }
-    catch (const std::exception &e)
-    {
-        LogError(e.what());
-        return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
-    }
-    catch (...)
-    {
-        return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
-    }
+        return Status{};
+    });
 }
 } // namespace retinify
diff --git a/retinify/src/paths.cpp b/retinify/src/paths.cpp
@@ -3,6 +3,7 @@
 
 #include "retinify/paths.hpp"
 #include "retinify/logging.hpp"
+#include "retinify/nothrow.hpp"
 #include "retinify/retinifyModels.hpp"
 #include "retinify/version.hpp"
 
@@ -26,12 +27,11 @@ constexpr DirectoryInfo kCacheDirectoryInfo{"XDG_CACHE_HOME", ".cache"};
 constexpr DirectoryInfo kDataDirectoryInfo{"XDG_DATA_HOME", ".local/share"};
 constexpr DirectoryInfo kStateDirectoryInfo{"XDG_STATE_HOME", ".local/state"};
 
-constexpr const char *kRetinifyDirName = "retinify";
+constexpr const char kRetinifyDirName[] = "retinify";
 
-static inline auto GetUserDirectoryPath(const DirectoryInfo &info, std::filesystem::path &path) noexcept -> Status
+inline auto GetUserDirectoryPath(const DirectoryInfo &info, std::filesystem::path &path) noexcept -> Status
 {
-    try
-    {
+    return NoThrow([&]() -> Status {
         std::filesystem::path baseDirectory;
 
         const char *xdgValue = std::getenv(info.environmentVariable);
@@ -73,25 +73,13 @@ static inline auto GetUserDirectoryPath(const DirectoryInfo &info, std::filesyst
 
         path = fullPath;
         return Status{};
-    }
-    catch (const std::exception &ex)
-    {
-        retinify::LogError(ex.what());
-    }
-    catch (...)
-    {
-        retinify::LogError("Unknown exception occurred.");
-    }
-
-    path.clear();
-    return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
+    });
 }
 } // namespace
 
 auto HomeDirectoryPath(std::filesystem::path &path) noexcept -> Status
 {
-    try
-    {
+    return NoThrow([&]() -> Status {
         const char *homePath = std::getenv("HOME");
         if (homePath == nullptr || std::strlen(homePath) == 0)
         {
@@ -102,18 +90,7 @@ auto HomeDirectoryPath(std::filesystem::path &path) noexcept -> Status
 
         path = std::filesystem::path{homePath};
         return Status{};
-    }
-    catch (const std::exception &ex)
-    {
-        retinify::LogError(ex.what());
-    }
-    catch (...)
-    {
-        retinify::LogError("Unknown exception occurred.");
-    }
-
-    path.clear();
-    return Status(StatusCategory::SYSTEM, StatusCode::FAIL);
+    });
 }
 
 auto ConfigDirectoryPath(std::filesystem::path &path) noexcept -> Status

diff --git a/retinify/src/session.cpp b/retinify/src/session.cpp
@@ -5,6 +5,7 @@
 #include "mat.hpp"
 
 #include "retinify/logging.hpp"
+#include "retinify/nothrow.hpp"
 #include "retinify/paths.hpp"
 
 #include <filesystem>
@@ -54,8 +55,7 @@ class TensorRTLogger : public nvinfer1::ILogger
 auto Session::Initialize(const char *modelPath) noexcept -> Status
 {
 #ifdef BUILD_WITH_TENSORRT
-    try
-    {
+    return NoThrow([&]() -> Status {
         TensorRTLogger logger;
         runtime_.reset(nvinfer1::createInferRuntime(logger));
         if (!runtime_)
@@ -228,17 +228,7 @@ auto Session::Initialize(const char *modelPath) noexcept -> Status
         }
 
         return Status{};
-    }
-    catch (std::exception &ex)
-    {
-        LogError(ex.what());
-        return Status{StatusCategory::RETINIFY, StatusCode::FAIL};
-    }
-    catch (...)
-    {
-        LogFatal("An unknown error occurred.");
-        return Status{StatusCategory::RETINIFY, StatusCode::FAIL};
-    }
+    });
 #else
     (void)modelPath;
     LogError("This function is not available");