;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; backend helpers.
+(use-modules (scm ps-to-png)
+ (ice-9 optargs))
+
(define-public (ly:system command . rest)
(let* ((status 0)
(dev-null "/dev/null")
(ly:progress "\n")
(ly:system cmd)))
-(use-modules (scm ps-to-png))
-
(define-public (postscript->png resolution paper-width paper-height name)
(let* ((verbose (ly:get-option 'verbose))
(rename-page-1 #f))
scope)))
(apply string-append (map output-scope scopes)))
+(define missing-stencil-list '())
+
+(define-public (backend-testing output-module)
+ (define (missing-stencil-expression name)
+ (begin
+ (ly:warning (_ "missing stencil expression `~S'") name)
+ ""))
+
+ (map (lambda (x)
+ (if (not (module-defined? output-module x))
+ (begin
+ (module-define! output-module x
+ (lambda* (#:optional y . z)
+ (missing-stencil-expression x)))
+ (set! missing-stencil-list (append (list x)
+ missing-stencil-list)))))
+ (ly:all-stencil-commands)))
+
+(define-public (remove-stencil-warnings output-module)
+ (for-each
+ (lambda (x)
+ (module-remove! output-module x))
+ missing-stencil-list))