package ocaml-migrate-parsetree

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package ocaml-migrate-parsetree
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type ast =
  1. | Impl : (module Migrate_parsetree__.Migrate_parsetree_versions.OCaml_version with type Ast.Parsetree.structure = 'concrete) * 'concrete -> ast
  2. | Intf : (module Migrate_parsetree__.Migrate_parsetree_versions.OCaml_version with type Ast.Parsetree.signature = 'concrete) * 'concrete -> ast

A marshalled ast packs the ast with the corresponding version of the frontend

type filename = string

A simple alias used for the filename of the source that produced an AST

type read_error =
  1. | Not_a_binary_ast of string
    (*

    The input doesn't contain a binary AST. The argument corresponds to the bytes from the input that were consumed.

    *)
  2. | Unknown_version of string
    (*

    The input contains a binary AST for an unknown version of OCaml. The argument is the unknown magic number.

    *)
val from_channel : in_channel -> (filename * ast, read_error) Result.result

Load a marshalled AST from a channel

Any exception raised during unmarshalling (see Marshal) can escape.

val from_bytes : bytes -> int -> (filename * ast, read_error) Result.result

Load a marshalled AST from a byte string.

See from_channel description for exception that can be raised.

val to_channel : out_channel -> filename -> ast -> unit

Marshal an AST to a channel

val to_bytes : filename -> ast -> bytes

Marshal an AST to a byte string

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