remove dependencies

cache.rkt

@@ -1,6 +1,5 @@
 #lang racket/base
 (require racket/rerequire)
-(require "debug.rkt" sugar/coercion/values)
 
 ;; The cache is a hash with paths as keys.
 ;; The cache values are also hashes, with key/value pairs for that path.
@@ -13,6 +12,9 @@
 
 (define (make-cache) (make-hash))
 
+(define (->complete-path path-string)
+  (path->complete-path (if (string? path-string) (string->path path-string) path-string)))
+
 (define (cache-ref path-string)
   (hash-ref (current-cache) (->complete-path path-string)))
 
@@ -28,7 +30,6 @@
   (hash-set! cache-hash 'metas (dynamic-require path 'metas))
   (void))
 
-
 (define (cached-require path-string key)
   (when (not (current-cache)) (error "cached-require: No cache set up."))