-/*
- scm-hash.hh -- declare Scheme hasher.
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#ifndef SCM_HASH_HH
-#define SCM_HASH_HH
-
-
-#include <map>
-
-#include "lily-guile.hh"
-#include "smobs.hh"
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+ Copyright (C) 1999--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
-struct SCM_less
-{
- bool operator () (SCM s1, SCM s2) const
- {
- return long(s1) < long (s2);
- }
-};
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-typedef map<SCM,SCM, SCM_less> Scm_stl_map;
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-/**
- auto resizing hash table.
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
- 1. ALWAYS USE THIS AS VIA A POINTER, i.e.
-
- class Foo {
- Scheme_hash_table * tab;
- };
+#ifndef SCM_HASH_HH
+#define SCM_HASH_HH
- and NOT
+#include "smobs.hh"
- class Foo {
- Scheme_hash_table tab;
- }
+/*
+ hash table.
+ 1. ALWAYS USE THIS AS VIA A POINTER, i.e.
- 2. UPON DESTRUCTION, DO
+ class Foo {
+ Scheme_hash_table * tab;
+ };
- scm_unprotect_object (tab->self_scm_);
+ and NOT
+ class Foo {
+ Scheme_hash_table tab;
+ }
+ 2. UPON DESTRUCTION, DO
- TODO:
+ scm_gc_unprotect_object (tab->self_scm_);
+*/
- This should come from GUILE. We're typically doing double work,
- because KEY already is a symbol, and is looked up in a symbol
- hashtable.
-
- */
-class Scheme_hash_table : private Scm_stl_map
+class Scheme_hash_table : public Smob<Scheme_hash_table>
{
public:
+ int print_smob (SCM, scm_print_state *);
+ SCM mark_smob ();
+ virtual ~Scheme_hash_table ();
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 &);
-
SCM to_alist () const;
- DECLARE_SMOBS(Scheme_hash_table,foo);
+
+private:
+ SCM hash_tab_;
+ void copy (Scheme_hash_table const &src);
};
#endif /* SCM_HASH_HH */
-