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Module Docstrings

module Docstrings: sig .. end
Documentation comments
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 -> Location.t -> docstring
Create a docstring
val register : docstring -> unit
Register a docstring
val docstring_body : docstring -> string
Get the text of a docstring
val docstring_loc : docstring -> 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 Docstrings.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 -> Parsetree.attribute
val add_docs_attrs : docs -> Parsetree.attributes -> 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 Docstrings.info type represents documentation attached to a field or constructor. 

type info = docstring option 
val empty_info : info
val info_attr : docstring -> Parsetree.attribute
val add_info_attrs : info -> Parsetree.attributes -> 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 Docstrings.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 -> Parsetree.attribute
val add_text_attrs : text -> Parsetree.attributes -> 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