X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fscm-hash.hh;h=976429682bee33d1b0715d94ecf3901f1120f63a;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=7a903469c1dc537de3010f30c9ea62a520dae09d;hpb=ee7a5648ebcede3c2775d944dd91e8e33dfeabad;p=lilypond.git

diff --git a/lily/include/scm-hash.hh b/lily/include/scm-hash.hh
index 7a903469c1..976429682b 100644
--- a/lily/include/scm-hash.hh
+++ b/lily/include/scm-hash.hh
@@ -1,65 +1,54 @@
-/*   
+/*
   scm-hash.hh -- declare Scheme hasher.
-  
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1999--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 
 #ifndef SCM_HASH_HH
 #define SCM_HASH_HH
 
-
-#include <map>
-
-#include "lily-guile.hh"
 #include "smobs.hh"
 
+/*
+  hash table.
 
-struct SCM_less
-{
-  bool operator  () (SCM s1, SCM s2) const
-  {
-    return long(s1) < long (s2);
-  }
-};
+  1. ALWAYS USE THIS AS VIA A POINTER, i.e.
+
+  class Foo {
+  Scheme_hash_table * tab;
+  };
 
-typedef map<SCM,SCM, SCM_less> Scm_stl_map;
+  and NOT
 
-/**
-   auto resizing hash table. This should come from GUILE.
+  class Foo {
+  Scheme_hash_table tab;
+  }
 
-   ALWAYS USE THIS AS VIA A POINTER, i.e.
 
-   class Foo {
-    Scheme_hash_table * tab;
-   };
+  2. UPON DESTRUCTION, DO
 
-   and NOT
+  scm_gc_unprotect_object (tab->self_scm_);
+*/
 
-   class Foo {
-    Scheme_hash_table tab;
-   }
- */
-class Scheme_hash_table :  private Scm_stl_map
+class Scheme_hash_table
 {
 public:
   bool try_retrieve (SCM key, SCM *val);
-  bool elem_b (SCM key) const;
-
-  /**
-     WARNING: putting something in assumes responsibility for cleaning
-     up.  */
+  bool contains (SCM key) const;
   void set (SCM k, SCM v);
-  SCM get (SCM k) const; 
-  
+  SCM get (SCM k) const;
+  void remove (SCM k);
   Scheme_hash_table ();
-  void operator = (Scheme_hash_table const &); 
+  void operator = (Scheme_hash_table const &);
   Scheme_hash_table (Scheme_hash_table const &);
-  virtual ~Scheme_hash_table ();
-  DECLARE_SMOBS;
   SCM to_alist () const;
+
+private:
+  SCM hash_tab_;
+  void copy (Scheme_hash_table const &src);
+  DECLARE_SMOBS (Scheme_hash_table);
 };
 
 #endif /* SCM_HASH_HH */