create a specific CreateFunctionFlag struct based on the SQLite version

1 files changed, 16 insertions, 2 deletions

diff --git a/sqlite.zig b/sqlite.zig
index e4757a2..9308956 100644
--- a/sqlite.zig
+++ b/sqlite.zig
@@ -695,14 +695,17 @@ pub const Db = struct {
     ///
     /// The flags SQLITE_UTF16LE, SQLITE_UTF16BE are not supported yet. SQLITE_UTF8 is the default and always on.
     ///
+    /// SQLITE_DIRECTONLY is only available on SQLite >= 3.30.0 so we create a different type based on the SQLite version.
+    ///
     /// TODO(vincent): allow these flags when we know how to handle UTF16 data.
-    pub const CreateFunctionFlag = struct {
+    /// TODO(vincent): can we refactor this somehow to share the common stuff ?
+    pub const CreateFunctionFlag = if (c.SQLITE_VERSION_NUMBER >= 3030000) struct {
         /// Equivalent to SQLITE_DETERMINISTIC
         deterministic: bool = true,
         /// Equivalent to SQLITE_DIRECTONLY
         direct_only: bool = true,
 
-        fn toCFlags(self: *const CreateFunctionFlag) c_int {
+        fn toCFlags(self: *const @This()) c_int {
             var flags: c_int = c.SQLITE_UTF8;
             if (self.deterministic) {
                 flags |= c.SQLITE_DETERMINISTIC;
@@ -712,6 +715,17 @@ pub const Db = struct {
             }
             return flags;
         }
+    } else struct {
+        /// Equivalent to SQLITE_DETERMINISTIC
+        deterministic: bool = true,
+
+        fn toCFlags(self: *const @This()) c_int {
+            var flags: c_int = c.SQLITE_UTF8;
+            if (self.deterministic) {
+                flags |= c.SQLITE_DETERMINISTIC;
+            }
+            return flags;
+        }
     };
 
     /// Creates an aggregate SQLite function with the given name.