fix: source_location

Author: sdkrystian

include/mrdox/Support/Error.hpp

@@ -14,9 +14,9 @@
 
 #include <mrdox/Platform.hpp>
 #include <mrdox/Support/Format.hpp>
+#include <mrdox/Support/source_location.hpp>
 #include <exception>
 #include <iterator>
-#include <source_location>
 #include <string>
 #include <string_view>
 #include <type_traits>
@@ -33,13 +33,13 @@ class [[nodiscard]] MRDOX_DECL
 {
     std::string message_;
     std::string reason_;
-    std::source_location loc_;
+    source_location loc_;
 
     static
     std::string
     appendSourceLocation(
         std::string&&,
-        std::source_location const&);
+        source_location const&);
 
 public:
     /** Constructor.
@@ -76,8 +76,8 @@ class [[nodiscard]] MRDOX_DECL
     explicit
     Error(
         std::string reason,
-        std::source_location loc =
-            std::source_location::current())
+        source_location loc =
+            source_location::current())
         : message_(appendSourceLocation(std::string(reason), loc))
         , reason_(std::move(reason))
         , loc_(loc)
@@ -92,8 +92,8 @@ class [[nodiscard]] MRDOX_DECL
     explicit
     Error(
         std::error_code const& ec,
-        std::source_location loc =
-            std::source_location::current())
+        source_location loc =
+            source_location::current())
     {
         if(! ec)
             return;
@@ -105,8 +105,8 @@ class [[nodiscard]] MRDOX_DECL
     explicit
     Error(
         std::vector<Error> const& errors,
-        std::source_location loc =
-            std::source_location::current());
+        source_location loc =
+            source_location::current());
 
     /** Return true if this holds an error.
     */
@@ -142,7 +142,7 @@ class [[nodiscard]] MRDOX_DECL
 
     /** Return the source location.
     */
-    constexpr std::source_location
+    constexpr source_location
     location() const noexcept
     {
         return loc_;
@@ -229,7 +229,7 @@ class MRDOX_DECL
 
 public:
     SourceLocation(
-        std::source_location const& loc) noexcept;
+        source_location const& loc) noexcept;
 
     std::string_view file_name() const noexcept
     {

include/mrdox/Support/Format.hpp

@@ -12,8 +12,8 @@
 #define MRDOX_API_SUPPORT_FORMAT_HPP
 
 #include <mrdox/Platform.hpp>
+#include <mrdox/Support/source_location.hpp>
 #include <fmt/format.h>
-#include <source_location>
 
 namespace clang {
 namespace mrdox {
@@ -24,8 +24,8 @@ struct FormatString
     template<class T>
     FormatString(
         T const& fs_,
-        std::source_location loc_ =
-            std::source_location::current())
+        source_location loc_ =
+            source_location::current())
         : fs(fs_)
         , loc(loc_)
     {
@@ -34,7 +34,7 @@ struct FormatString
     }
 
     std::string_view fs;
-    std::source_location loc;
+    source_location loc;
 };
 
 } // mrdox

include/mrdox/Support/source_location.hpp

@@ -0,0 +1,89 @@
+//
+// Licensed under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+// Copyright (c) 2023 Krystian Stasiowski (sdkrystian@gmail.com)
+//
+// Official repository: https://github.com/cppalliance/mrdox
+//
+
+#ifndef MRDOX_API_SUPPORT_SOURCE_LOCATION_HPP
+#define MRDOX_API_SUPPORT_SOURCE_LOCATION_HPP
+
+#include <version>
+
+#if __cpp_lib_source_location >= 201907L && \
+    __has_include(<source_location>)
+    #include <source_location>
+
+    namespace clang {
+    namespace mrdox {
+
+    using std::source_location;
+
+    } // mrdox
+    } // clang
+#else
+    #include <cstdint>
+
+    namespace clang {
+    namespace mrdox {
+
+    struct source_location
+    {
+        static
+        constexpr
+        source_location
+        current(
+            const char* const file = __builtin_FILE(),
+            const char* const function = __builtin_FUNCTION(),
+            const std::uint_least32_t line = __builtin_LINE(),
+            const std::uint_least32_t column = __builtin_COLUMN()) noexcept
+
+        {
+            source_location result;
+            result.file_ = file;
+            result.function_ = function;
+            result.line_ = line;
+            result.column_ = column;
+            return result;
+        }
+
+        constexpr
+        const char*
+        file_name() const noexcept
+        {
+            return file_;
+        }
+        constexpr
+        const char*
+        function_name() const noexcept
+        {
+            return function_;
+        }
+
+        constexpr
+        std::uint_least32_t
+        line() const noexcept
+        {
+            return line_;
+        }
+        constexpr
+        std::uint_least32_t
+        column() const noexcept
+        {
+            return column_;
+        }
+
+    private:
+        const char* file_ = "";
+        const char* function_ = "";
+        std::uint_least32_t line_ = 0;
+        std::uint_least32_t column_ = 0;
+    };
+
+} // mrdox
+} // clang
+#endif
+#endif

source/Support/Error.cpp

@@ -18,7 +18,7 @@ std::string
 Error::
 appendSourceLocation(
     std::string&& text,
-    std::source_location const& loc)
+    source_location const& loc)
 {
 #if 0
     fmt::format_to(
@@ -41,7 +41,7 @@ appendSourceLocation(
 Error::
 Error(
     std::vector<Error> const& errors,
-    std::source_location loc)
+    source_location loc)
 {
     MRDOX_ASSERT(errors.size() > 0);
     if(errors.size() == 1)
@@ -63,7 +63,7 @@ Error(
 
 SourceLocation::
 SourceLocation(
-    std::source_location const& loc) noexcept
+    source_location const& loc) noexcept
     : file_(files::getSourceFilename(loc.file_name()))
     , line_(loc.line())
     , col_(loc.column())