ppx_ast v0.9.1 · OCaml Package

val init : unit -> unit

(Re)Initialise all docstring state

val warn_bad_docstrings : unit -> unit

Emit warnings for unattached and ambiguous docstrings

Docstrings

type docstring

Documentation comments

val docstring : string -> Ocaml_common.Location.t -> docstring

Create a docstring

val docstring_body : docstring -> string

Get the text of a docstring

val docstring_loc : docstring -> Ocaml_common.Location.t

Get the location of a docstring

Set functions

These functions are used by the lexer to associate docstrings to the locations of tokens.

val set_pre_docstrings : Lexing.position -> docstring list -> unit

Docstrings immediately preceding a token

val set_post_docstrings : Lexing.position -> docstring list -> unit

Docstrings immediately following a token

val set_floating_docstrings : Lexing.position -> docstring list -> unit

Docstrings not immediately adjacent to a token

val set_pre_extra_docstrings : Lexing.position -> docstring list -> unit

Docstrings immediately following the token which precedes this one

val set_post_extra_docstrings : Lexing.position -> docstring list -> unit

Docstrings immediately preceding the token which follows this one

Items

The docs type represents documentation attached to an item.

type docs = {

docs_pre : docstring option;
docs_post : docstring option;

}

val empty_docs : docs

val docs_attr : 
  docstring ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attribute

val add_docs_attrs : 
  docs ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attributes ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attributes

Convert item documentation to attributes and add them to an attribute list

val symbol_docs : unit -> docs

Fetch the item documentation for the current symbol. This also marks this documentation (for ambiguity warnings).

val symbol_docs_lazy : unit -> docs Lazy.t

val rhs_docs : int -> int -> docs

Fetch the item documentation for the symbols between two positions. This also marks this documentation (for ambiguity warnings).

val rhs_docs_lazy : int -> int -> docs Lazy.t

val mark_symbol_docs : unit -> unit

Mark the item documentation for the current symbol (for ambiguity warnings).

val mark_rhs_docs : int -> int -> unit

Mark as associated the item documentation for the symbols between two positions (for ambiguity warnings)

Fields and constructors

The info type represents documentation attached to a field or constructor.

type info = docstring option

val empty_info : info

val info_attr : 
  docstring ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attribute

val add_info_attrs : 
  info ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attributes ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attributes

Convert field info to attributes and add them to an attribute list

val symbol_info : unit -> info

Fetch the field info for the current symbol.

val rhs_info : int -> info

Fetch the field info following the symbol at a given position.

Unattached comments

The text type represents documentation which is not attached to anything.

type text = docstring list

val empty_text : text

val empty_text_lazy : text Lazy.t

val text_attr : 
  docstring ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attribute

val add_text_attrs : 
  text ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attributes ->
  Migrate_parsetree.OCaml_403.Ast.Parsetree.attributes

Convert text to attributes and add them to an attribute list

val symbol_text : unit -> text

Fetch the text preceding the current symbol.

val symbol_text_lazy : unit -> text Lazy.t

val rhs_text : int -> text

Fetch the text preceding the symbol at the given position.

val rhs_text_lazy : int -> text Lazy.t

Extra text

There may be additional text attached to the delimiters of a block (e.g. struct and end). This is fetched by the following functions, which are applied to the contents of the block rather than the delimiters.

val symbol_pre_extra_text : unit -> text

Fetch additional text preceding the current symbol

val symbol_post_extra_text : unit -> text

Fetch additional text following the current symbol

val rhs_pre_extra_text : int -> text

Fetch additional text preceding the symbol at the given position

val rhs_post_extra_text : int -> text

Fetch additional text following the symbol at the given position