1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
(**************************************************************************)
(* *)
(* OCaml *)
(* *)
(* Pierre Chambart, OCamlPro *)
(* Mark Shinwell and Leo White, Jane Street Europe *)
(* *)
(* Copyright 2013--2016 OCamlPro SAS *)
(* Copyright 2014--2016 Jane Street Group LLC *)
(* *)
(* All rights reserved. This file is distributed under the terms of *)
(* the GNU Lesser General Public License version 2.1, with the *)
(* special exception on linking described in the file LICENSE. *)
(* *)
(**************************************************************************)
[@@@ocaml.warning "+a-4-9-30-40-41-42"]
(** Generation of [Flambda] intermediate language code from [Lambda] code
by performing a form of closure conversion.
Function declarations (which may bind one or more variables identifying
functions, possibly with mutual recursion) are transformed to
[Set_of_closures] expressions. [Project_closure] expressions are then
used to select a closure for a particular function from a [Set_of_closures]
expression. The [Set_of_closures] expressions say nothing about the
actual runtime layout of the closures; this is handled when [Flambda] code
is translated to [Clambda] code.
The following transformations are also performed during closure
conversion:
- Constant blocks (by which is meant things wrapped in [Lambda.Const_block])
are converted to applications of the [Pmakeblock] primitive.
- [Levent] debugging event nodes are removed and the information within
them attached to function, method and [raise] calls.
- Tuplified functions are converted to curried functions and a stub
function emitted to call the curried version. For example:
let rec f (x, y) = f (x + 1, y + 1)
is transformed to:
let rec internal_f x y = f (x + 1,y + 1)
and f (x, y) = internal_f x y (* [f] is marked as a stub function *)
- The [Pdirapply] and [Prevapply] application primitives are removed and
converted to normal [Flambda] application nodes.
The [lambda_to_flambda] function is not re-entrant.
*)
val lambda_to_flambda
: backend:(module Backend_intf.S)
-> module_ident:Ident.t
-> size:int
-> Lambda.lambda
-> Flambda.program
|
