Export missing symbols and fix CMakeLists.txt for modules (#273)

Author: mikomikotaishi

src/modules/CMakeLists.txt

@@ -1,6 +1,11 @@
 file(GLOB_RECURSE TOMLPLUSPLUS_MODULES *.cppm)
 
 add_library(tomlplusplus_modules)
+target_sources(tomlplusplus_modules
+    PUBLIC
+    FILE_SET CXX_MODULES FILES
+    ${TOMLPLUSPLUS_MODULES}
+)
 
 cmake_minimum_required(VERSION 3.28)
 

src/modules/tomlpp.cppm renamed to src/modules/tomlplusplus.cppm

@@ -65,4 +65,24 @@ export namespace toml {
     using TOML_NAMESPACE::operator<<;
     using TOML_NAMESPACE::parse;
     using TOML_NAMESPACE::parse_file;
+
+    using TOML_NAMESPACE::is_array;
+    using TOML_NAMESPACE::is_boolean;
+    using TOML_NAMESPACE::is_chronological;
+    using TOML_NAMESPACE::is_container;
+    using TOML_NAMESPACE::is_date;
+    using TOML_NAMESPACE::is_date_time;
+    using TOML_NAMESPACE::is_floating_point;
+    using TOML_NAMESPACE::is_integer;
+    using TOML_NAMESPACE::is_key;
+    using TOML_NAMESPACE::is_key_or_convertible;
+    using TOML_NAMESPACE::is_node;
+    using TOML_NAMESPACE::is_node_view;
+    using TOML_NAMESPACE::is_number;
+    using TOML_NAMESPACE::is_string;
+    using TOML_NAMESPACE::is_table;
+    using TOML_NAMESPACE::is_time;
+    using TOML_NAMESPACE::is_value;
+
+	using TOML_NAMESPACE::preserve_source_value_flags;
 }