Improve and simplify error messages.

The checks on the argument and format arguments are now performed
during C2C translation by calling the validate_ais_annotations
function and result in an error instead of a warning in the
backend to be more consistent with the rest of the builtin
functions.

1 files changed, 6 insertions, 2 deletions

diff --git a/backend/AisAnnot.mli b/backend/AisAnnot.mli
index 7219369c..59676b26 100644
--- a/backend/AisAnnot.mli
+++ b/backend/AisAnnot.mli
@@ -18,10 +18,8 @@ type t =
 val add_ais_annot : int -> ('a -> string) -> string -> string -> 'a AST.builtin_arg list -> unit
 (** [add_ais_annot lbl preg spreg txt args] adds the ais annotation [txt] were the format
     specifiers are replace according to their type:
-    -a: area definitions
     -e: general expressions
     -l: l-value expressions
-    -p: program location
     -here: the address of the ais annotation [lbl]
     and [preg] is used to get the names of the registers, as well as [spreg] the name of the
     stack pointer and [args] the arguments reference in the replacements
@@ -29,3 +27,9 @@ val add_ais_annot : int -> ('a -> string) -> string -> string -> 'a AST.builtin_
 
 val get_ais_annots: unit -> (t list) list
 (** [get_ais_annots ()] return the list of all ais annotations and reset it *)
+
+val validate_ais_annot: Env.t -> string * int -> string -> C.exp list -> unit
+(** [validate_ais env loc txt args] validates the ais annotation text and arguments, checking
+    that no volatile variables or float expressions are used as well as that no illegal format
+    specifier is used in the [txt]
+*)