Moved from_string functions and the mappings to an inl file so they don't horribly slow down the compilation on every file.

VulkanHppGenerator.cpp

@@ -789,25 +789,49 @@ void VulkanHppGenerator::generateFromStringHppFile() const
 #ifndef VULKAN_FROM_STRING_HPP
 #  define VULKAN_FROM_STRING_HPP
 
-#include <string>
-#include <unordered_map>
+#include <optional>
+#include <string_view>
 #include <vulkan/${api}_enums.hpp>
 
 namespace VULKAN_HPP_NAMESPACE
 {
-${enumsFromString}
+template<typename TEnum>
+extern std::optional<TEnum> from_string(std::string_view);
 } // namespace VULKAN_HPP_NAMESPACE
 #endif
 )";
 
   std::string str = replaceWithMap( vulkanHandlesHppTemplate,
                                     { { "api", m_api },
-                                      { "enumsFromString", generateEnumsFromString() },
                                       { "licenseHeader", m_vulkanLicenseHeader } } );
 
   writeToFile( str, vulkan_from_string_hpp );
 }
 
+void VulkanHppGenerator::generateFromStringInlFile() const
+{
+std::string const vulkan_from_string_inl = std::string( BASE_PATH ) + "/vulkan/" + m_api + "_from_string.inl";
+std::cout << "VulkanHppGenerator: Generating " << vulkan_from_string_inl << "..." << std::endl;
+
+std::string const vulkanHandlesInlTemplate = R"(${licenseHeader}
+
+#include <unordered_map>
+#include <vulkan/${api}_from_string.hpp>
+
+namespace VULKAN_HPP_NAMESPACE
+{
+${enumsFromString}
+} // namespace VULKAN_HPP_NAMESPACE
+)";
+
+std::string str = replaceWithMap( vulkanHandlesInlTemplate,
+{ { "api", m_api },
+{ "enumsFromString", generateEnumsFromString() },
+{ "licenseHeader", m_vulkanLicenseHeader } } );
+
+writeToFile( str, vulkan_from_string_inl );
+}
+
 void VulkanHppGenerator::generateCppModuleFile() const
 {
   std::string const vulkan_cppm = std::string( BASE_PATH ) + "/vulkan/" + m_api + ".cppm";
@@ -6825,24 +6849,18 @@ ${functionBody}
 std::string VulkanHppGenerator::generateEnumsFromString() const
 {
   const std::string enumsFromStringTemplate = R"(
-#define VULKAN_HPP_ENUM_FROM_STRING_STORAGE                                                   \
-  namespace VULKAN_HPP_NAMESPACE                                                              \
-  {                                                                                           \
-    VULKAN_HPP_STORAGE_API const ::VULKAN_HPP_NAMESPACE::EnumFromStringMap enumFromStringMap; \
-  }
-
   //=========================
   //=== ENUMs from_string ===
   //=========================
 
+#include <vulkan/vulkan_from_string.hpp>
+
 struct EnumFromStringMap
 {
 ${enumsFromStringStorage}
 };
-VULKAN_HPP_STORAGE_API extern const EnumFromStringMap enumFromStringMap;
+static const EnumFromStringMap enumFromStringMap;
 
-template<typename TEnum>
-std::optional<TEnum> from_string(const std::string&);
 ${enumsFromString}
 )";
 
@@ -6918,7 +6936,7 @@ std::string VulkanHppGenerator::generateEnumFromString( std::pair<std::string, E
 
   const std::string enumFromStringTemplate = R"(
   template<>
-  VULKAN_HPP_INLINE std::optional<${enumName}> from_string<${enumName}>( const std::string& ${argument} )
+  std::optional<${enumName}> from_string<${enumName}>( std::string_view ${argument} )
   {
 ${functionBody}
   }
@@ -6980,7 +6998,7 @@ std::string VulkanHppGenerator::generateEnumFromStringStorage( std::pair<std::st
   entries += previousLeave;
 
   const std::string enumToStringTemplate = R"(
-  std::unordered_map<std::string, ${enumName}> ${enumName}Entries =
+  std::unordered_map<std::string_view, ${enumName}> ${enumName}Entries =
   {
 ${entries}
   };
@@ -15911,6 +15929,7 @@ int main( int argc, char ** argv )
     generator.generateStructsHppFile();
     generator.generateToStringHppFile();
     generator.generateFromStringHppFile();
+    generator.generateFromStringInlFile();
     generator.generateCppModuleFile();
 
 #if !defined( CLANG_FORMAT_EXECUTABLE )

VulkanHppGenerator.hpp

@@ -102,6 +102,7 @@ public:
   void generateStructsHppFile() const;
   void generateToStringHppFile() const;
   void generateFromStringHppFile() const;
+  void generateFromStringInlFile() const;
   void generateCppModuleFile() const;
   void prepareRAIIHandles();
   void prepareVulkanFuncs();