Catch C++ xapian exceptions and raise them as scheme exceptions.

Uncaught C++ exceptions crash the guile process without providing
scheme code any opportunity to respond.

* except.i, xapian/error.scm: New files.
* xapian.i.in: Include except.i.
* Makefile.am (SOURCES): Add xapian/error.scm.
(xapian_wrap.cc xapian/wrap.scm &): Depend on except.i.

1 files changed, 30 insertions, 0 deletions

diff --git a/xapian/error.scm b/xapian/error.scm
new file mode 100644
index 0000000..4187dda
--- /dev/null
+++ b/xapian/error.scm
@@ -0,0 +1,30 @@
+;;; guile-xapian --- Guile bindings for Xapian
+;;; Copyright © 2023 Arun Isaac <arunisaac@systemreboot.net>
+;;;
+;;; This file is part of guile-xapian.
+;;;
+;;; guile-xapian is free software: you can redistribute it and/or
+;;; modify it under the terms of the GNU General Public License as
+;;; published by the Free Software Foundation, either version 2 of the
+;;; License, or (at your option) any later version.
+;;;
+;;; guile-xapian is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;;; General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with guile-xapian.  If not, see
+;;; <https://www.gnu.org/licenses/>.
+
+(define-module (xapian error)
+  #:use-module (rnrs conditions)
+  #:use-module (rnrs exceptions)
+  #:export (raise-xapian-exception))
+
+(define-condition-type &xapian-error &error
+  make-xapian-error xapian-error?
+  (message xapian-error-message))
+
+(define (raise-xapian-exception message)
+  (raise (make-xapian-error message)))