JosephFerano/flan
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

flan run does not offer --dev, and says so rather than building one

Browse Source 
--dev builds a program whose call sites go through indirection cells so
something can attach and redefine through them. Nothing can attach to a
process this command builds, execs, waits for and deletes, so the flag had no
meaning here -- and an --x86 --dev route through run would have falsified
Build's own statement that flan dev never reaches that fork because --x86 is
read only by flan build. It falls into the refusal arm with a sentence
instead.
This commit is contained in:
Joseph Ferano 2026-09-17 22:12:54 +07:00
parent 16498a4e60
commit 96e5fab77f
1 changed files with 14 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
bin/main.ml
View File

@ -704,8 +704,18 @@ let () =
one's own that wants [-v] has [--] to ask for it. Plain arguments need
no ceremony: they were never ambiguous and they still go straight
through, so [flan run calc-me.flan "1+2"] is unchanged. *)
let run_flags = [ no_checks_flag; dev_flag; debug_flag; sanitize_flag;
x86_flag ] @ opt_levels in
(* --dev is deliberately not on this list, and its absence is the point:
a dev build's indirection cells exist so that something can attach and
redefine through them, and nothing can attach to a process this command
builds, execs, waits for and deletes. Leaving it off means it lands in
the refusal below with a sentence, rather than quietly producing a
spelling [Build] says does not exist — [flan build]'s --x86 arm records
that `flan dev` never reaches its fork because --x86 is read only by
[flan build], and an --x86 --dev route through here would have made that
sentence false. *)
let run_flags =
[ no_checks_flag; debug_flag; sanitize_flag; x86_flag ] @ opt_levels
in
let build_args, prog_args =
let rec split acc = function
| "--" :: rest -> (List.rev acc, rest)
@ -727,7 +737,6 @@ let () =
split [] args
in
let checks = not (List.mem no_checks_flag build_args) in
let dev = List.mem dev_flag build_args in
let debug = List.mem debug_flag build_args in
let sanitize = List.mem sanitize_flag build_args in
let x86 = List.mem x86_flag build_args in
@ -740,9 +749,9 @@ let () =
in
let l = load path in
let p = Flan.Check.program_all l.decls in
let p, csrcs, lflags = Flan.Reach.link ~dev l p in
let p, csrcs, lflags = Flan.Reach.link l p in
ignore (Flan.Build.executable
~opts:{ Flan.Build.default with checks; dev; debug; sanitize;
~opts:{ Flan.Build.default with checks; debug; sanitize;
x86;
opt = Option.value opt
~default:Flan.Build.default.Flan.Build.opt }