From 8e07227c5853de78eaed4577eefe908fb84507c0 Mon Sep 17 00:00:00 2001 From: Maxime Dénès Date: Tue, 28 Jun 2016 10:55:30 +0200 Subject: A new infrastructure for warnings. On the user side, coqtop and coqc take a list of warning names or categories after -w. No prefix means activate the warning, a "-" prefix means deactivate it, and "+" means turn the warning into an error. Special categories include "all", and "default" which contains the warnings enabled by default. We also provide a vernacular Set Warnings which takes the same flags as argument. Note that coqc now prints warnings. The name and category of a warning are printed with the warning itself. On the developer side, Feedback.msg_warning is still accessible, but the recommended way to print a warning is in two steps: 1) create it by: let warn_my_warning = CWarnings.create ~name:"my-warning" ~category:"my-category" (fun args -> Pp.strbrk ...) 2) print it by: warn_my_warning args --- plugins/syntax/nat_syntax.ml | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'plugins/syntax') diff --git a/plugins/syntax/nat_syntax.ml b/plugins/syntax/nat_syntax.ml index 3142c8cf0..89305838b 100644 --- a/plugins/syntax/nat_syntax.ml +++ b/plugins/syntax/nat_syntax.ml @@ -26,14 +26,16 @@ open Errors let threshold = of_int 5000 +let warn_large_nat = + CWarnings.create ~name:"large-nat" ~category:"numbers" + (fun () -> strbrk "Stack overflow or segmentation fault happens when " ++ + strbrk "working with large numbers in nat (observed threshold " ++ + strbrk "may vary from 5000 to 70000 depending on your system " ++ + strbrk "limits and on the command executed).") + let nat_of_int dloc n = if is_pos_or_zero n then begin - if less_than threshold n then - Feedback.msg_warning - (strbrk "Stack overflow or segmentation fault happens when " ++ - strbrk "working with large numbers in nat (observed threshold " ++ - strbrk "may vary from 5000 to 70000 depending on your system " ++ - strbrk "limits and on the command executed)."); + if less_than threshold n then warn_large_nat (); let ref_O = GRef (dloc, glob_O, None) in let ref_S = GRef (dloc, glob_S, None) in let rec mk_nat acc n = -- cgit v1.2.3