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-rw-r--r--module/system/syntax.scm9
1 files changed, 8 insertions, 1 deletions
diff --git a/module/system/syntax.scm b/module/system/syntax.scm
index 9d6bc571f..34fadb39f 100644
--- a/module/system/syntax.scm
+++ b/module/system/syntax.scm
@@ -20,7 +20,14 @@
(define-module (system syntax)
#:use-module (system syntax internal)
- #:re-export (syntax-local-binding
+ #:re-export (syntax?
+ syntax-local-binding
(%syntax-module . syntax-module)
syntax-locally-bound-identifiers
syntax-session-id))
+
+;; Used by syntax.c.
+(define (print-syntax obj port)
+ ;; FIXME: Use syntax->datum instad of syntax-expression, when
+ ;; syntax->datum can operate on new syntax objects.
+ (format port "#<syntax ~s>" (syntax-expression obj)))