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authorEmilio Jesus Gallego Arias2018-11-08 20:52:06 +0100
committerEmilio Jesus Gallego Arias2018-11-09 00:33:31 +0100
commitd5aaa0ff95ce811dbca6644dad8bde70f7739514 (patch)
treeca1e7306263ff242832f97a4df929ba15ceab2aa /vernac
parent31825dc11a8e7fea42702182a3015067b0ed1140 (diff)
[topfmt] Add phase attribute for toplevel printing.
This is localized version of #8833, but instead of adding a phase attribute which, as pointed by @gares has some problematic semantics, we add a local one to the toplevel functions. This moves the imperative part of the API to a better-delimited scope and allows to progress with the separation of the interactive and compilation API. Note that still quite a few issues do remain in the "Feedback" path, for example, idetop and other feedback clients cannot get a hold of the feedback early enough as to direct init messages to the IDE part. This is for example a serious issue of the API that shall be treated separately.
Diffstat (limited to 'vernac')
-rw-r--r--vernac/topfmt.ml22
-rw-r--r--vernac/topfmt.mli6
2 files changed, 22 insertions, 6 deletions
diff --git a/vernac/topfmt.ml b/vernac/topfmt.ml
index f842ca5ead..4bf76dae51 100644
--- a/vernac/topfmt.ml
+++ b/vernac/topfmt.ml
@@ -335,6 +335,20 @@ type execution_phase =
| LoadingRcFile
| InteractiveLoop
+let default_phase = ref InteractiveLoop
+
+let in_phase ~phase f x =
+ let op = !default_phase in
+ default_phase := phase;
+ try
+ let res = f x in
+ default_phase := op;
+ res
+ with exn ->
+ let iexn = Backtrace.add_backtrace exn in
+ default_phase := op;
+ Util.iraise iexn
+
let pr_loc loc =
let fname = loc.Loc.fname in
match fname with
@@ -347,8 +361,8 @@ let pr_loc loc =
int (loc.bp-loc.bol_pos) ++ str"-" ++ int (loc.ep-loc.bol_pos) ++
str":")
-let pr_phase ?loc phase =
- match phase, loc with
+let pr_phase ?loc () =
+ match !default_phase, loc with
| LoadingRcFile, loc ->
(* For when all errors go through feedback:
str "While loading rcfile:" ++
@@ -363,10 +377,10 @@ let pr_phase ?loc phase =
(* Note: interactive messages such as "foo is defined" are not located *)
None
-let print_err_exn phase any =
+let print_err_exn any =
let (e, info) = CErrors.push any in
let loc = Loc.get_loc info in
- let pre_hdr = pr_phase ?loc phase in
+ let pre_hdr = pr_phase ?loc () in
let msg = CErrors.iprint (e, info) ++ fnl () in
std_logger ?pre_hdr Feedback.Error msg
diff --git a/vernac/topfmt.mli b/vernac/topfmt.mli
index 73dcb0064b..0ddf474970 100644
--- a/vernac/topfmt.mli
+++ b/vernac/topfmt.mli
@@ -61,9 +61,11 @@ type execution_phase =
| LoadingRcFile
| InteractiveLoop
+val in_phase : phase:execution_phase -> ('a -> 'b) -> 'a -> 'b
+
val pr_loc : Loc.t -> Pp.t
-val pr_phase : ?loc:Loc.t -> execution_phase -> Pp.t option
-val print_err_exn : execution_phase -> exn -> unit
+val pr_phase : ?loc:Loc.t -> unit -> Pp.t option
+val print_err_exn : exn -> unit
(** [with_output_to_file file f x] executes [f x] with logging
redirected to a file [file] *)