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Diffstat (limited to 'lib/kernel/subject.ml')
| -rw-r--r-- | lib/kernel/subject.ml | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/kernel/subject.ml b/lib/kernel/subject.ml new file mode 100644 index 0000000..000aaff --- /dev/null +++ b/lib/kernel/subject.ml @@ -0,0 +1,13 @@ +(* Whom the celebration is of. Named [Subject] rather than [Class] because + [class] is an OCaml keyword. Used by precedence in Plan 3 (RG 91). *) +type t = Temporal | Saint | Bvm | Lord [@@deriving sexp] + +let all = [ Temporal; Saint; Bvm; Lord ] + +let to_string = function + | Temporal -> "temporal" | Saint -> "saint" | Bvm -> "bvm" | Lord -> "lord" + +let of_string = function + | "temporal" -> Some Temporal | "saint" -> Some Saint + | "bvm" -> Some Bvm | "lord" -> Some Lord + | _ -> None |