/src/lib/storage/bijective_dictionary/bijective_dictionary_reverser.e

  1-- This file is part of a Liberty Eiffel library.
  2-- See the full copyright at the end.
  3--
  4class BIJECTIVE_DICTIONARY_REVERSER[V_, K_]
  5   -- Allows to view a BIJECTIVE_DICTIONARY[V_, K_] as a BIJECTIVE_DICTIONARY[K_, V_]
  6
  7inherit
  8   BIJECTIVE_DICTIONARY[V_, K_]
  9
 10create {ANY}
 11   from_bijective_dictionary
 12
 13feature {ANY}
 14   from_bijective_dictionary (bijective_dictionary_: like bijective_dictionary)
 15      do
 16         bijective_dictionary := bijective_dictionary_
 17      end
 18
 19   count: INTEGER
 20      do
 21         Result := bijective_dictionary.count
 22      end
 23
 24   has (k: K_): BOOLEAN
 25      do
 26         Result := bijective_dictionary.has_value(k)
 27      end
 28
 29   at (k: K_): V_
 30      do
 31         Result := bijective_dictionary.key_at(k)
 32      end
 33
 34   reference_at (k: K_): V_
 35      do
 36         if has(k) then
 37            Result := at(k)
 38         end
 39      end
 40
 41   fast_has (k: K_): BOOLEAN
 42      do
 43         Result := bijective_dictionary.fast_has_value(k)
 44      end
 45
 46   fast_at (k: K_): V_
 47      do
 48         Result := bijective_dictionary.fast_key_at(k)
 49      end
 50
 51   fast_reference_at (k: K_): V_
 52      do
 53         if fast_has(k) then
 54            Result := fast_at(k)
 55         end
 56      end
 57
 58   has_value (v: V_): BOOLEAN
 59      do
 60         Result := bijective_dictionary.has(v)
 61      end
 62
 63   key_at (v: V_): K_
 64      do
 65         Result := bijective_dictionary.at(v)
 66      end
 67
 68   fast_has_value (v: V_): BOOLEAN
 69      do
 70         Result := bijective_dictionary.fast_has(v)
 71      end
 72
 73   fast_key_at (v: V_): K_
 74      do
 75         Result := bijective_dictionary.fast_at(v)
 76      end
 77
 78   put (v: V_; k: K_)
 79      do
 80         remove(k)
 81         add(v, k)
 82      end
 83
 84   add (v: V_; k: K_)
 85      do
 86         bijective_dictionary.add(k, v)
 87         next_generation
 88      end
 89
 90   remove (k: K_)
 91      local
 92         v: V_
 93      do
 94         if has(k) then
 95            v := at(k)
 96            bijective_dictionary.remove(v)
 97         end
 98         next_generation
 99      end
100
101   clear_count
102      do
103         bijective_dictionary.clear_count
104         next_generation
105      end
106
107   clear_count_and_capacity
108      do
109         bijective_dictionary.clear_count_and_capacity
110         next_generation
111      end
112
113   capacity: INTEGER
114      do
115         Result := bijective_dictionary.capacity
116      end
117
118   item (index: INTEGER): V_
119      do
120         Result := bijective_dictionary.key(index)
121      end
122
123   key (index: INTEGER): K_
124      do
125         Result := bijective_dictionary.item(index)
126      end
127
128   copy (other: like Current)
129      do
130         bijective_dictionary := other.bijective_dictionary
131      end
132
133   internal_key (k: K_): K_
134      do
135         Result := key_at(at(k))
136      end
137
138feature {BIJECTIVE_DICTIONARY}
139   bijective_dictionary: BIJECTIVE_DICTIONARY[K_, V_]
140
141end -- class BIJECTIVE_DICTIONARY_REVERSER
142--
143-- Copyright (C) 2009-2017: by all the people cited in the AUTHORS file.
144--
145-- Permission is hereby granted, free of charge, to any person obtaining a copy
146-- of this software and associated documentation files (the "Software"), to deal
147-- in the Software without restriction, including without limitation the rights
148-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
149-- copies of the Software, and to permit persons to whom the Software is
150-- furnished to do so, subject to the following conditions:
151--
152-- The above copyright notice and this permission notice shall be included in
153-- all copies or substantial portions of the Software.
154--
155-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
156-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
157-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
158-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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161-- THE SOFTWARE.