node: Add custom write method.

1 files changed, 15 insertions, 0 deletions

diff --git a/starling/node.scm b/starling/node.scm
index 6461f58..14e4e17 100644
--- a/starling/node.scm
+++ b/starling/node.scm
@@ -22,6 +22,7 @@
 
 (define-module (starling node)
   #:use-module (chickadee scripting)
+  #:use-module (ice-9 format)
   #:use-module (oop goops)
   #:use-module (starling asset)
   #:use-module (starling config)
@@ -178,6 +179,20 @@
                   <developer-meta-node>
                   <meta-node>))
 
+(define-method (write (node <node>) port)
+  (define (strip-angle-brackets str)
+    (let ((start (if (string-prefix? "<" str) 1 0))
+          (end (if (string-suffix? ">" str)
+                   (- (string-length str) 1)
+                   (string-length str))))
+      (substring str start end)))
+  (format port "#<~a name: ~a id: ~d>"
+          (strip-angle-brackets
+            (symbol->string
+             (class-name (class-of node))))
+          (name node)
+          (id node)))
+
 (define-method (initialize (node <node>) initargs)
   (next-method)
   ;; Add node to global index.