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Point of view
All features
deferred class DICTIONARY [V_, K_]
Summary
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Associative memory. Values of type V_ are stored using Keys of type K_. To make a comparison with the well known ARRAY class, with a DICTIONARY, index used are not only INTEGER, you can use for example a STRING to access to your information.
Well known implementations, see HASHED_DICTIONARY, AVL_DICTIONARY and ARRAY_DICTIONARY.
See also BIJECTIVE_DICTIONARY class.
Direct parents
Inherit list: MAP
Known children
Inherit list: ARRAY_DICTIONARY, SIMPLE_DICTIONARY
Overview
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Features
Adding:
{ANY}
  • put (v: V_, k: K_) assign at
    Change some existing entry or add the new one.
  • fast_put (v: V_, k: K_) assign fast_at
    Same job as put, but uses basic = for comparison.
  • add (v: V_, k: K_)
    To add a new entry k with its associated value v.
  • set_item (v: V_, index: INTEGER_32)
Removing:
{ANY}
{ANY}
{}
  • make
    Creates an empty dictionary.
Implement manifest generic creation:
{}
{}
Counting:
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Basic access:
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  • has (k: K_): BOOLEAN
    Is there a value currently associated with key k?
  • at (k: K_): V_
    Return the value associated to key k.
  • infix "@" (k: K_): V_
    The infix notation which is actually a synonym for at.
  • reference_at (k: K_): V_
    Return Void or the value associated with key k.
  • fast_has (k: K_): BOOLEAN
    Is there a value currently associated with key k?
  • fast_at (k: K_): V_
    Return the value associated to key k using basic = for comparison.
  • fast_reference_at (k: K_): V_
    Same work as reference_at, but basic = is used for comparison.
Looking and searching some value:
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To provide iterating facilities:
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  • fast_is_equal (other: DICTIONARY [V_, K_]): BOOLEAN
    Do both dictionaries have the same set of associations?
  • is_equal (other: DICTIONARY [V_, K_]): BOOLEAN
    Do both dictionaries have the same set of associations?
  • is_equal_map (other: DICTIONARY [V_, K_]): BOOLEAN
    Do both collections have the same lower, upper, and items?
Display support:
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Agents based features:
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Other features:
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  • internal_key (k: K_): K_
    Retrieve the internal key object which correspond to the existing entry k (the one memorized into the Current dictionary).
{}
{}
{ANY}
Other features:
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{ANY}
{}
Counting:
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{}
Indexing:
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put (v: V_, k: K_) assign at
deferred procedure
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Change some existing entry or add the new one.
fast_put (v: V_, k: K_) assign fast_at
deferred procedure
{ANY}
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Same job as put, but uses basic = for comparison.
add (v: V_, k: K_)
deferred procedure
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To add a new entry k with its associated value v.
set_item (v: V_, index: INTEGER_32)
deferred procedure
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remove (k: K_)
deferred procedure
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Remove entry k (which may exist or not before this call).
fast_remove (k: K_)
deferred procedure
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Same job as remove, but uses basic = for comparison.
clear_count
deferred procedure
{ANY}
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Discard all items (is_empty is True after that call).
clear_count_and_capacity
deferred procedure
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Discard all items (is_empty is True after that call).
capacity: INTEGER_32
deferred function
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Approximation of the actual internal storage capacity.
copy (other: DICTIONARY [V_, K_])
effective procedure
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Reinitialize by copying all associations of other.
new_iterator_on_items: ITERATOR[V_]
effective function
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make
deferred procedure
{}
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Creates an empty dictionary.
manifest_make (needed_capacity: INTEGER_32)
effective procedure
{}
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Manifest creation of a dictionary.
manifest_put (index: INTEGER_32, v: V_, k: K_)
effective procedure
{}
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manifest_semicolon_check: INTEGER_32
is 2
constant attribute
{}
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Put semicolons between successive value-key pairs.
key_safe_equal (k1: K_, k2: K_): BOOLEAN
effective function
{}
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Because keys are never Void, we do not rely on the SAFE_EQUAL class.
is_empty: BOOLEAN
effective function
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Is it empty?
has (k: K_): BOOLEAN
deferred function
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Is there a value currently associated with key k?
at (k: K_): V_
deferred function
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Return the value associated to key k.
infix "@" (k: K_): V_
frozen
effective function
{ANY}
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The infix notation which is actually a synonym for at.
reference_at (k: K_): V_
deferred function
{ANY}
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Return Void or the value associated with key k.
fast_has (k: K_): BOOLEAN
deferred function
{ANY}
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Is there a value currently associated with key k?
fast_at (k: K_): V_
deferred function
{ANY}
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Return the value associated to key k using basic = for comparison.
fast_reference_at (k: K_): V_
deferred function
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Same work as reference_at, but basic = is used for comparison.
occurrences (v: V_): INTEGER_32
effective function
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Number of occurrences using is_equal for comparison.
fast_occurrences (v: V_): INTEGER_32
effective function
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Number of occurrences using basic = for comparison.
key_at (v: V_): K_
effective function
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Retrieve the key used for value v using is_equal for comparison.
fast_key_at (v: V_): K_
effective function
{ANY}
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Retrieve the key used for value v using = for comparison.
lower: INTEGER_32
is 1
constant attribute
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Minimum index.
upper: INTEGER_32
effective function
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Maximum index.
item (index: INTEGER_32): V_
deferred function
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Item at the corresponding index i.
key (index: INTEGER_32): K_
deferred function
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first: V_
effective function
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The very first item.
last: V_
effective function
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The last item.
new_iterator_on_keys: ITERATOR[K_]
deferred function
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new_iterator: ITERATOR[TUPLE 2[V_, K_]]
deferred function
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key_map_in (buffer: COLLECTION[K_])
effective procedure
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Append in buffer, all available keys (this may be useful to speed up the traversal).
item_map_in (buffer: COLLECTION[V_])
effective procedure
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Append in buffer, all available items (this may be useful to speed up the traversal).
keys: TRAVERSABLE[K_]
effective function
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An iterable of this map keys
items: TRAVERSABLE[V_]
effective function
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An iterable of this map values Usually returns Current because MAP is TRAVERSABLE.
fast_is_equal (other: DICTIONARY [V_, K_]): BOOLEAN
effective function
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Do both dictionaries have the same set of associations?
is_equal (other: DICTIONARY [V_, K_]): BOOLEAN
effective function
{ANY}
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Do both dictionaries have the same set of associations?
is_equal_map (other: DICTIONARY [V_, K_]): BOOLEAN
effective function
{ANY}
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Do both collections have the same lower, upper, and items?
out_in_tagged_out_memory
effective procedure
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Append terse printable representation of current object in tagged_out_memory.
for_each (action: PROCEDURE[TUPLE[TUPLE 2[V_, K_]]])
effective procedure
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Apply action to every [V_, K_] associations of Current.
do_all (action: ROUTINE[TUPLE[TUPLE 2[V_, K_]]])
frozen
effective procedure
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Apply action to every [V_, K_] associations of Current.
for_all (test: FUNCTION[TUPLE[TUPLE 2[V_, K_]]]): BOOLEAN
effective function
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Do all [V_, K_] associations satisfy test?
exists (test: FUNCTION[TUPLE[TUPLE 2[V_, K_]]]): BOOLEAN
effective function
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Does at least one [V_, K_] association satisfy test?
aggregate (action: FUNCTION[TUPLE[TUPLE 3[V_, V_, K_], V_]], initial: V_): V_
effective function
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Aggregate all the elements starting from the initial value.
internal_key (k: K_): K_
deferred function
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Retrieve the internal key object which correspond to the existing entry k (the one memorized into the Current dictionary).
keys_memory: DICTIONARY_KEY_TRAVERSER[V_, K_]
writable attribute
{}
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_inline_agent43 (v: V_, k: K_)
frozen
effective procedure
{}
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enumerate: ENUMERATE[E_]
effective function
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get_new_iterator: ITERATOR[E_]
frozen
effective function
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generation: INTEGER_32
writable attribute
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next_generation
effective procedure
{}
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count: INTEGER_32
deferred function
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Number of available items in the hoard.
_inline_agent1 (a: ROUTINE[TUPLE[TUPLE 1[E_]]], e: E_)
frozen
effective procedure
{}
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valid_index (i: INTEGER_32): BOOLEAN
effective function
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True when i is valid (i.e., inside actual bounds).