Module Ecaml_value.Form

An Emacs "form", which is a Lisp object that is intended to be evaluated. (Info-goto-node "(elisp)Forms").

include Value.Subtype
type value
type t = private value

We expose private value for free identity conversions when the value is nested in some covariant type, e.g. (symbols : Symbol.t list :> Value.t list) rather than List.map symbols ~f:Symbol.to_value.

val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.t
val eq : t -> t -> bool

eq t1 t2 = Value.eq (to_value t1) (to_value t2), i.e. eq checks whether the Emacs values underlying t1 and t2 are physically equal. This is different than phys_equal t1 t2, because we don't always wrap eq Emacs values in phys_equal OCaml values. I.e. phys_equal t1 t2 implies eq t1 t2, but not the converse.

val is_in_subtype : value -> bool
include Ecaml_value__.Valueable0.S with type t := t
type t
type 'a type_
val of_value_exn : Ecaml_value__.Value0.t -> t
val to_value : t -> Ecaml_value__.Value0.t
val type_ : t type_
val eval : t -> Value.t

(describe-function 'eval)

val eval_i : t -> unit
val read : string -> t

(describe-function 'read)

val eval_string : string -> Value.t

eval_string string = eval (read string)

val nil : t
val string : string -> t
val symbol : Symbol.t -> t
val int : int -> t
val quote : Value.t -> t
val progn : t list -> t
val let_ : (Symbol.t * t) list -> t -> t
val lambda : ?⁠docstring:string -> ?⁠interactive:string -> ?⁠optional_args:Symbol.t list -> ?⁠rest_arg:Symbol.t -> Core_kernel.Source_code_position.t -> args:Symbol.t list -> body:t -> t
val list : t list -> t

A function call, macro application, or special form. (Info-goto-node "(elisp)Classifying Lists").