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Diffstat (limited to 'clib/exninfo.mli')
-rw-r--r-- | clib/exninfo.mli | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/clib/exninfo.mli b/clib/exninfo.mli new file mode 100644 index 00000000..4a5a6095 --- /dev/null +++ b/clib/exninfo.mli @@ -0,0 +1,41 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) +(************************************************************************) + +(** Additional information worn by exceptions. *) + +type 'a t +(** Information containing a given type. *) + +type info +(** All information *) + +type iexn = exn * info +(** Information-wearing exceptions *) + +val make : unit -> 'a t +(** Create a new piece of information. *) + +val null : info +(** No information *) + +val add : info -> 'a t -> 'a -> info +(** Add information to an exception. *) + +val get : info -> 'a t -> 'a option +(** Get information worn by an exception. Returns [None] if undefined. *) + +val info : exn -> info +(** Retrieve the information of the last exception raised. *) + +val iraise : iexn -> 'a +(** Raise the given enriched exception. *) + +val raise : ?info:info -> exn -> 'a +(** Raise the given exception with additional information. *) |