Addressed Clang 10 choking on concepts using non-template parameters

Author: trueqbit

dev/functional/cxx_compiler_quirks.h

@@ -39,3 +39,10 @@
     (defined(__clang__) && (__clang_major__ >= 12) && (__cplusplus >= 202002L))
 #define SQLITE_ORM_CLASSTYPE_TEMPLATE_ARGS_SUPPORTED
 #endif
+
+// clang 10 chokes on concepts that don't depend on template parameters;
+// when it tries to instantiate an expression in a requires expression, which results in an error,
+// the compiler reports an error instead of dismissing the templated function.
+#if defined(SQLITE_ORM_CONCEPTS_SUPPORTED) && (defined(__clang__) && (__clang_major__ == 10))
+#define SQLITE_ORM_BROKEN_NONTEMPLATE_CONCEPTS
+#endif

dev/serializing_util.h

@@ -6,7 +6,7 @@
 #include <string>
 #include <ostream>
 #include <utility>  //  std::exchange, std::tuple_size
-#ifdef SQLITE_ORM_CONCEPTS_SUPPORTED
+#if defined(SQLITE_ORM_CONCEPTS_SUPPORTED) && !defined(SQLITE_ORM_BROKEN_NONTEMPLATE_CONCEPTS)
 #include <string_view>
 #include <algorithm>  //  std::find
 #endif
@@ -29,7 +29,7 @@ namespace sqlite_orm {
         template<class T, class Ctx>
         std::string serialize_order_by(const T& t, const Ctx& context);
 
-#ifdef SQLITE_ORM_CONCEPTS_SUPPORTED
+#if defined(SQLITE_ORM_CONCEPTS_SUPPORTED) && !defined(SQLITE_ORM_BROKEN_NONTEMPLATE_CONCEPTS)
         // optimized version when string_view's iterator range constructor is available
         template<class SFINAE = void>
         void stream_sql_escaped(std::ostream& os, const std::string& str, char char2Escape)

include/sqlite_orm/sqlite_orm.h

@@ -140,6 +140,13 @@ using std::nullptr_t;
 #define SQLITE_ORM_CLASSTYPE_TEMPLATE_ARGS_SUPPORTED
 #endif
 
+// clang 10 chokes on concepts that don't depend on template parameters;
+// when it tries to instantiate an expression in a requires expression, which results in an error,
+// the compiler reports an error instead of dismissing the templated function.
+#if defined(SQLITE_ORM_CONCEPTS_SUPPORTED) && (defined(__clang__) && (__clang_major__ == 10))
+#define SQLITE_ORM_BROKEN_NONTEMPLATE_CONCEPTS
+#endif
+
 #if SQLITE_ORM_HAS_INCLUDE(<version>)
 #include <version>
 #endif
@@ -13191,7 +13198,7 @@ namespace sqlite_orm {
 #include <string>
 #include <ostream>
 #include <utility>  //  std::exchange, std::tuple_size
-#ifdef SQLITE_ORM_CONCEPTS_SUPPORTED
+#if defined(SQLITE_ORM_CONCEPTS_SUPPORTED) && !defined(SQLITE_ORM_BROKEN_NONTEMPLATE_CONCEPTS)
 #include <string_view>
 #include <algorithm>  //  std::find
 #endif
@@ -13219,7 +13226,7 @@ namespace sqlite_orm {
         template<class T, class Ctx>
         std::string serialize_order_by(const T& t, const Ctx& context);
 
-#ifdef SQLITE_ORM_CONCEPTS_SUPPORTED
+#if defined(SQLITE_ORM_CONCEPTS_SUPPORTED) && !defined(SQLITE_ORM_BROKEN_NONTEMPLATE_CONCEPTS)
         // optimized version when string_view's iterator range constructor is available
         template<class SFINAE = void>
         void stream_sql_escaped(std::ostream& os, const std::string& str, char char2Escape)