B0_def.S
The type of named values.
The module guarantees name unicity and provides indexing and lookup of the named values.
mangle_basename s
is a basename that can be used with define
.
define ~doc ~meta n
defines name n
in the current scope with documentation string doc
(defaults to "undocumented"
)e and metadata meta
(defaults to B0_meta.empty
). Defining a duplicate value in a scope raises an exception.
val name : t -> string
name v
is v
's name. Note that this name changes depending on how the definition is scoped.
val basename : t -> string
basename v
is v
's name without the scope.
val doc : t -> string
doc v
is v
's documentation string.
val mem_meta : 'a B0_meta.key -> t -> bool
mem_meta k v
is B0_meta.mem k (B0_def.meta v)
.
val has_tag : bool B0_meta.key -> t -> bool
has_tag k v
is B0_meta.has_tag k (B0_def.meta v)
.
val find_meta : 'a B0_meta.key -> t -> 'a option
find_meta k v
is B0_meta.find k (B0_def.meta v)
.
val find_or_default_meta : 'a B0_meta.key -> t -> 'a
find_or_default_meta k u
is B0_meta.find_or_default k (B0_unit.meta u)
.
val get_meta : 'a B0_meta.key -> t -> ('a, string) Stdlib.result
get_meta m k u
is Ok v
if find_meta
k u
is Some v
and a final user friendly error message if None
.
val add : t -> unit
add v
adds the value v
to the list of defined values.
val fold : (t -> 'a -> 'a) -> 'a -> 'a
fold f acc
folds over the list of defined values.
val list : unit -> t list
list ()
is the list of defined values.
val find : string -> t option
find name
is the value named name
(if any).
val get : string -> t
get name
looks up the value named name
and errors the b0 file if there no such name
.
get_or_suggest name
is the value named name
or a (possibly empty) list of suggested values whose name could match name
.
val get_or_hint : string -> (t, string) Stdlib.result
get_or_hint name
is the value named name
or an error message that indicates that name
could not be found with suggested names.
val get_list_or_hint :
all_if_empty:bool ->
string list ->
(t list, string) Stdlib.result
get_list_or_hint ~all_if_empty names
are the value named after names
or an error that indicates the names that could not be found with suggested names. If all_if_empty
is true
an empty ns
returns list ()
sorted by name.
val scope_path : t -> string list
scope_path v
are the scopes in which v
is defined starting from the root. If v
is defined in the root scope this is []
, if v
is defined in a library scope lib
this is [[""]; lib]
val in_root_scope : t -> bool
in_root_scope v
is true
iff v
is in the root scope.
val in_current_scope : t -> bool
in_current_scope v
is true
iff v
is in the current scope.
val scope_dir : t -> B0_std.Fpath.t option
scope_dir v
is the scope directory in which v
is defined.
val scope_dir' : t -> (B0_std.Fpath.t, string) Stdlib.result
scope_dir' v
is like scope_dir
but errors with an end-user message if None
.
val in_scope_dir : t -> B0_std.Fpath.t -> B0_std.Fpath.t option
in_scope_dir v path
makes the path path
absolute with respect to the scope directory in which v
is defined. This is None
if v
's scope has no directory (e.g. on library scopes).
val in_scope_dir' :
t ->
B0_std.Fpath.t ->
(B0_std.Fpath.t, string) Stdlib.result
in_scope_dir'
is like in_scope_dir
but errors with an end-user message if None
.
val pp_name_str : string B0_std.Fmt.t
pp_name_str v
pretty prints value names.
val pp_name : t B0_std.Fmt.t
pp_name v
formats v
's name.
val pp_doc : t B0_std.Fmt.t
pp_doc
formats v
's doc string.
val pp_synopsis : t B0_std.Fmt.t
pp_synopsis
formats v
's name and its doc string.
val pp : t B0_std.Fmt.t
pp
formats v
's name, its doc string and its metadata dictionary.