Module `Ppx_log_kernel.Log_tag`

type t = {

label : Ppxlib.label;
label_is_optional : Base.bool;
data : Ppx_log_kernel.Tag_data.t Ppxlib.loc;

}

val data : 
  Ppx_log_kernel.Log_tag.t ->
  Ppx_log_kernel.Tag_data.t Ppxlib.loc @@ portable

val label_is_optional : Ppx_log_kernel.Log_tag.t -> Base.bool @@ portable

val label : Ppx_log_kernel.Log_tag.t -> Ppxlib.label @@ portable

val compare_label : 
  Ppx_log_kernel.Log_tag.t ->
  Ppx_log_kernel.Log_tag.t ->
  Base.int

order by the labels

val parse_arg : 
  (Ppxlib.arg_label * Ppxlib.expression) ->
  Ppx_log_kernel.Log_tag.t

See tests in the implementation for more examples.

Parsing rules:

  ~x:123         => {label = "x"; data = Constant <123>}
  ~x:some_expr   => {label = "x"; data = String_expression some_expr}
  ~x             => {label = "x"; data = String_expression x}
  ~x:(expr : t)  => {label = "x"; data = Type_constrained (expr, t)}
  (expr : t)     => {label = to_string expr; data = Type_constrained (expr, t)}

  expr           => {label = ""; data = String_expression expr}
  ~_:expr        => {label = ""; data = String_expression expr}
  ~_:(expr : t)  => {label = ""; data = Type_constrained (expr, t)}
  ?x:expr        => invalid

val render_list : 
  Ppx_log_kernel.Log_tag.t Base.list ->
  loc:Ppxlib.location ->
  Ppxlib.expression

Produces an expression that will evaluate to a Log_tag.t list.

Module Ppx_log_kernel.Log_tag

Module `Ppx_log_kernel.Log_tag`