summaryrefslogtreecommitdiff
path: root/sdl3/errors.scm
diff options
context:
space:
mode:
Diffstat (limited to 'sdl3/errors.scm')
-rw-r--r--sdl3/errors.scm54
1 files changed, 54 insertions, 0 deletions
diff --git a/sdl3/errors.scm b/sdl3/errors.scm
new file mode 100644
index 0000000..3d48647
--- /dev/null
+++ b/sdl3/errors.scm
@@ -0,0 +1,54 @@
+;;; guile-sdl3 -- Scheme bindings for SDL3
+;;; Copyright © 2024 David Thompson <dthompson2@worcester.edu>
+;;;
+;;; Licensed under the Apache License, Version 2.0 (the "License");
+;;; you may not use this file except in compliance with the License.
+;;; You may obtain a copy of the License at
+;;;
+;;; http://www.apache.org/licenses/LICENSE-2.0
+;;;
+;;; Unless required by applicable law or agreed to in writing, software
+;;; distributed under the License is distributed on an "AS IS" BASIS,
+;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;;; See the License for the specific language governing permissions and
+;;; limitations under the License.
+
+;;; Commentary:
+;;
+;; SDL3 errors.
+;;
+;;; Code:
+
+(define-module (sdl3 errors)
+ #:use-module (ice-9 exceptions)
+ #:use-module (sdl3 bindings error)
+ #:use-module (system foreign)
+ #:export (sdl-get-error
+ make-sdl-error
+ sdl-assert
+ sdl-assert-non-null))
+
+(define (sdl-get-error)
+ (pointer->string (SDL_GetError)))
+
+(define-exception-type &sdl-exception &error
+ make-sdl-exception
+ sdl-exception?)
+
+(define* (make-sdl-error origin #:key
+ (message (sdl-get-error))
+ (irritants '()))
+ (make-exception
+ (make-sdl-exception)
+ (make-exception-with-message message)
+ (make-exception-with-irritants irritants)
+ (make-exception-with-origin origin)))
+
+(define (sdl-assert origin bool)
+ (unless (eq? bool 1)
+ (raise-exception (make-sdl-error origin))))
+
+(define (sdl-assert-non-null origin pointer)
+ (when (null-pointer? pointer)
+ (raise-exception (make-sdl-error origin)))
+ pointer)