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EmileTrotignonEmileTrotignon
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break-struct for sig fix (#2709)
* showcase issue * solve issue
1 parent d295be1 commit 75e2bdd

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6 files changed

+225
-1
lines changed

6 files changed

+225
-1
lines changed

‎lib/Fmt_ast.ml

Lines changed: 9 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3807,6 +3807,13 @@ and fmt_module_type c ?(rec_ = false) ({ast= mty; _} as xmty) =
38073807
bdy= fmt_longident_loc c lid
38083808
; epi= Some (fmt_attributes c pmty_attributes ~pre:(Break (1, 0))) }
38093809
| Pmty_signature s ->
3810+
let is_signature_multiline =
3811+
match s with
3812+
| [] -> false
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| _ :: _ ->
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(List.hd_exn s).psig_loc.loc_start.pos_lnum
3815+
<> (List.last_exn s).psig_loc.loc_start.pos_lnum
3816+
in
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let empty = List.is_empty s && not (Cmts.has_within c.cmts pmty_loc) in
38113818
let before = Cmts.fmt_before c pmty_loc in
38123819
let within = Cmts.fmt_within c ~pro:noop pmty_loc in
@@ -3821,7 +3828,8 @@ and fmt_module_type c ?(rec_ = false) ({ast= mty; _} as xmty) =
38213828
; cls= noop
38223829
; esp=
38233830
fmt_if (not empty)
3824-
( if c.conf.fmt_opts.break_struct.v then force_break
3831+
( if c.conf.fmt_opts.break_struct.v || is_signature_multiline then
3832+
force_break
38253833
else break 1 0 )
38263834
; epi=
38273835
Some

‎test/passing/refs.ahrefs/break_struct.ml.ref

Lines changed: 52 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -68,3 +68,55 @@ include (
6868
include Ast_407
6969
end
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with module Location := Ast_407.Location)
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module type S = sig
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type t =
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| AAaaaaaaaaaaaaaaaaaa
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| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
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| Ccccccccccccccccccccccc
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| Dddddddddddddddddd end
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module S : sig
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type t =
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| AAaaaaaaaaaaaaaaaaaa
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| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
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| Ccccccccccccccccccccccc
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| Dddddddddddddddddd end = struct
85+
type t =
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| AAaaaaaaaaaaaaaaaaaa
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| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
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| Ccccccccccccccccccccccc
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| Dddddddddddddddddd
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end
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module type Module_type_fail = sig
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include S
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module F : functor (_ : T) -> sig end
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include S
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end
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module A : sig
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type a
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type b
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end =
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B
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module A : sig
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type a
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type b
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end = struct
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type a
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type b
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end
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module type S = sig
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module Make (Config : sig
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val blah : string
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val boo : int
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end) : S end

‎test/passing/refs.default/break_struct.ml.ref

Lines changed: 29 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -75,3 +75,32 @@ include (
7575
include Ast_407
7676
end
7777
with module Location := Ast_407.Location)
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module type S = sig
80+
type t =
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| AAaaaaaaaaaaaaaaaaaa
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| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
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| Ccccccccccccccccccccccc
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| Dddddddddddddddddd end
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module S : sig
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type t =
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| AAaaaaaaaaaaaaaaaaaa
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| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
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| Ccccccccccccccccccccccc
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| Dddddddddddddddddd end = struct
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type t =
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| AAaaaaaaaaaaaaaaaaaa
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| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
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| Ccccccccccccccccccccccc
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| Dddddddddddddddddd
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end
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module type Module_type_fail = sig
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include S module F : functor (_ : T) -> sig end include S end
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module A : sig type a type b end = B
103+
module A : sig type a type b end = struct type a type b end
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module type S = sig
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module Make (Config : sig val blah : string val boo : int end) : S end

‎test/passing/refs.janestreet/break_struct.ml.ref

Lines changed: 28 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -84,3 +84,31 @@ end
8484
include (
8585
Ast_407 :
8686
module type of struct include Ast_407 end with module Location := Ast_407.Location)
87+
88+
module type S = sig
89+
type t =
90+
| AAaaaaaaaaaaaaaaaaaa
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| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
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| Ccccccccccccccccccccccc
93+
| Dddddddddddddddddd end
94+
95+
module S : sig
96+
type t =
97+
| AAaaaaaaaaaaaaaaaaaa
98+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
99+
| Ccccccccccccccccccccccc
100+
| Dddddddddddddddddd end = struct
101+
type t =
102+
| AAaaaaaaaaaaaaaaaaaa
103+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
104+
| Ccccccccccccccccccccccc
105+
| Dddddddddddddddddd
106+
end
107+
108+
module type Module_type_fail = sig
109+
include S module F : functor (_ : T) -> sig end include S end
110+
111+
module A : sig type a type b end = B
112+
module A : sig type a type b end = struct type a type b end
113+
114+
module type S = sig module Make (Config : sig val blah : string val boo : int end) : S end

‎test/passing/refs.ocamlformat/break_struct.ml.ref

Lines changed: 52 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -83,3 +83,55 @@ include (
8383
include Ast_407
8484
end
8585
with module Location := Ast_407.Location )
86+
87+
module type S = sig
88+
type t =
89+
| AAaaaaaaaaaaaaaaaaaa
90+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
91+
| Ccccccccccccccccccccccc
92+
| Dddddddddddddddddd end
93+
94+
module S : sig
95+
type t =
96+
| AAaaaaaaaaaaaaaaaaaa
97+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
98+
| Ccccccccccccccccccccccc
99+
| Dddddddddddddddddd end = struct
100+
type t =
101+
| AAaaaaaaaaaaaaaaaaaa
102+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
103+
| Ccccccccccccccccccccccc
104+
| Dddddddddddddddddd
105+
end
106+
107+
module type Module_type_fail = sig
108+
include S
109+
110+
module F : functor (_ : T) -> sig end
111+
112+
include S
113+
end
114+
115+
module A : sig
116+
type a
117+
118+
type b
119+
end =
120+
B
121+
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module A : sig
123+
type a
124+
125+
type b
126+
end = struct
127+
type a
128+
129+
type b
130+
end
131+
132+
module type S = sig
133+
module Make (Config : sig
134+
val blah : string
135+
136+
val boo : int
137+
end) : S end

‎test/passing/tests/break_struct.ml

Lines changed: 55 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -88,3 +88,58 @@ include (
8888
module type of struct include Ast_407
8989
end
9090
with module Location := Ast_407.Location )
91+
92+
module type S = sig
93+
type t =
94+
| AAaaaaaaaaaaaaaaaaaa
95+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
96+
| Ccccccccccccccccccccccc
97+
| Dddddddddddddddddd
98+
end
99+
100+
module S : sig
101+
type t =
102+
| AAaaaaaaaaaaaaaaaaaa
103+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
104+
| Ccccccccccccccccccccccc
105+
| Dddddddddddddddddd
106+
end = struct
107+
type t =
108+
| AAaaaaaaaaaaaaaaaaaa
109+
| Bbbbbbbbbbbbbbbbbbbbbbbbbbb
110+
| Ccccccccccccccccccccccc
111+
| Dddddddddddddddddd
112+
end
113+
114+
module type Module_type_fail = sig
115+
include S
116+
117+
module F : functor (_ : T) -> sig end
118+
119+
include S
120+
end
121+
122+
module A : sig
123+
type a
124+
125+
type b
126+
end =
127+
B
128+
129+
module A : sig
130+
type a
131+
132+
type b
133+
end = struct
134+
type a
135+
136+
type b
137+
end
138+
139+
module type S = sig
140+
module Make (Config : sig
141+
val blah : string
142+
143+
val boo : int
144+
end) : S
145+
end

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