til: make builtins first-class modules w/new flag

Also move builtins to a separate listing while at it

For now this results in the builtins showing up in the modules
list alongside the actual rendering modules.  Future work must
refine this UX, maybe by adding some metadata to the spec.values
for categorizing/prioritizing what's shown always vs. what's
present but hidden without asking to be shown hidden stuff or
whatever.

Just consolidating some junk and working towards every nested
module setup going through the same machinery, and always being
able to access the builtins.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/til.h b/src/til.h
index da62456..1b39c06 100644
--- a/src/til.h
+++ b/src/til.h
@@ -23,6 +23,7 @@ typedef struct til_stream_t til_stream_t;
 #define TIL_MODULE_OVERLAYABLE	1u	/* module is appropriate for overlay use */
 #define TIL_MODULE_HERMETIC	2u	/* module doesn't work readily with other modules / requires manual settings */
 #define TIL_MODULE_EXPERIMENTAL	4u	/* module is buggy / unfinished */
+#define TIL_MODULE_BUILTIN	8u	/* module is implements "built-in" libtil functionality not intended to be interesting by itself */
 
 struct til_module_t {
 	til_module_context_t *	(*create_context)(const til_module_t *module, til_stream_t *stream, unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup);