+
Point of view
All features
class ZIP [V_, K_]
Summary
Makes a dictionary of two independent hoards.
Direct parents
Inherit list: MAP
Insert list: SAFE_EQUAL
Known children
Inherit list: ENUMERATE
Class invariant
Overview
Creation features
{ANY}
  • make (a_items: TRAVERSABLE[V_], a_keys: TRAVERSABLE[K_])
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).
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  • make (a_items: TRAVERSABLE[V_], a_keys: TRAVERSABLE[K_])
{ANY}
  • items: TRAVERSABLE[V_]
    An iterable of this map values Usually returns Current because MAP is TRAVERSABLE.
  • keys: TRAVERSABLE[K_]
    An iterable of this map keys
{}
Counting:
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Basic access:
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  • infix "@" (k: K_): V_
    The infix notation which is actually a synonym for at.
Looking and searching some value:
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To provide iterating facilities:
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  • first: V_
    The very first item.
  • last: V_
    The last item.
  • key_map_in (buffer: COLLECTION[K_])
    Append in buffer, all available keys (this may be useful to speed up the traversal).
  • item_map_in (buffer: COLLECTION[V_])
    Append in buffer, all available items (this may be useful to speed up the traversal).
{ANY}
Display support:
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Agents based features:
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{}
{}
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Other features:
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{}
{}
Indexing:
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  • test (e1: E_, e2: E_): BOOLEAN
    In order to avoid run-time type errors, feature safe_equal calls is_equal only when e1 and e2 have exactly the same dynamic type.
  • safe_equal (e1: E_, e2: E_): BOOLEAN
    In order to avoid run-time type errors, feature safe_equal calls is_equal only when e1 and e2 have exactly the same dynamic type.
lower: INTEGER_32
is 0
constant attribute
{ANY}
Minimum index.
See also upper, valid_index, item.
upper: INTEGER_32
effective function
{ANY}
Maximum index.
See also lower, valid_index, item.
ensure
  • count = Result - lower + 1
count: INTEGER_32
effective function
{ANY}
Number of available items in the hoard.
See also is_empty
ensure
  • Result >= 0
copy (other: ZIP [V_, K_])
effective procedure
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Update current object using fields of object attached to other, so as to yield equal objects.
Note: you can't copy object from a different dynamic type.
require
    • not immutable
    • same_dynamic_type(other)
      • not immutable
      • same_dynamic_type(other)
      • not immutable
      • same_dynamic_type(other)
ensure
  • is_equal(other)
has (k: K_): BOOLEAN
effective function
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Is there a value currently associated with key k?
See also fast_has, at.
require
  • k /= Void
at (k: K_): V_
effective function
{ANY}
Return the value associated to key k.
See also fast_at, reference_at, has.
require
  • has(k)
reference_at (k: K_): V_
effective function
{ANY}
Return Void or the value associated with key k.
Actually, this feature is useful only when the type of values (the type V_) is a reference type, to avoid using has just followed by at to get the corresponding value with the very best performances.
See also fast_reference_at, at, has.
require
  • k /= Void
  • values_are_not_expanded: Result = Void
ensure
  • has(k) implies Result = at(k)
fast_has (k: K_): BOOLEAN
effective function
{ANY}
Is there a value currently associated with key k?
Using basic = for comparison.
See also has, at, fast_at.
require
  • k /= Void
fast_at (k: K_): V_
effective function
{ANY}
Return the value associated to key k using basic = for comparison.
require
  • fast_has(k)
fast_reference_at (k: K_): V_
effective function
{ANY}
Same work as reference_at, but basic = is used for comparison.
See also reference_at, at, has.
require
  • k /= Void
  • values_are_reference: Result = Void
ensure
  • fast_has(k) implies Result = fast_at(k)
item (index: INTEGER_32): V_
effective function
{ANY}
Item at the corresponding index i.
See also lower, upper, valid_index.
require
  • valid_index(index)
ensure
  • Result = at(key(index))
key (index: INTEGER_32): K_
effective function
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require
  • valid_index(index)
ensure
  • at(Result) = item(index)
new_iterator_on_items: ITERATOR[V_]
effective function
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ensure
  • Result /= Void
  • Result /= Void
  • Result.generation = generation
new_iterator_on_keys: ITERATOR[K_]
effective function
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ensure
  • Result /= Void
new_iterator: ITERATOR[TUPLE 2[V_, K_]]
effective function
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ensure
  • Result /= Void
internal_key (k: K_): K_
effective function
{ANY}
Retrieve the internal key object which correspond to the existing entry k (the one memorized into the Current dictionary).
See also has, fast_has.
require
  • has(k)
ensure
  • Result.is_equal(k)
make (a_items: TRAVERSABLE[V_], a_keys: TRAVERSABLE[K_])
effective procedure
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require
  • a_items.count = a_keys.count
ensure
items: TRAVERSABLE[V_]
writable attribute
{ANY}
An iterable of this map values Usually returns Current because MAP is TRAVERSABLE.
ensure
  • Result.count = count
keys: TRAVERSABLE[K_]
writable attribute
{ANY}
An iterable of this map keys
ensure
  • Result.count = count
index_of (k: K_): INTEGER_32
effective function
{}
fast_index_of (k: K_): INTEGER_32
effective function
{}
is_empty: BOOLEAN
effective function
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Is it empty?
ensure
  • definition: Result = count = 0
infix "@" (k: K_): V_
frozen
effective function
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The infix notation which is actually a synonym for at.
require ensure
  • definition: Result = at(k)
occurrences (v: V_): INTEGER_32
effective function
{ANY}
Number of occurrences using is_equal for comparison.
ensure
  • Result >= 0
fast_occurrences (v: V_): INTEGER_32
effective function
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Number of occurrences using basic = for comparison.
See also occurrences, fast_has, has.
ensure
  • Result >= 0
key_at (v: V_): K_
effective function
{ANY}
Retrieve the key used for value v using is_equal for comparison.
See also fast_key_at, at.
require ensure
fast_key_at (v: V_): K_
effective function
{ANY}
Retrieve the key used for value v using = for comparison.
See also key_at, at.
require ensure
  • at(Result) = v
first: V_
effective function
{ANY}
The very first item.
See also last, item.
require
  • not is_empty
ensure
  • definition: Result = item(lower)
last: V_
effective function
{ANY}
The last item.
See also first, item.
require
  • not is_empty
ensure
  • definition: Result = item(upper)
key_map_in (buffer: COLLECTION[K_])
effective procedure
{ANY}
Append in buffer, all available keys (this may be useful to speed up the traversal).
See also item_map_in.
require
  • buffer /= Void
ensure
  • buffer.count = count + old buffer.count
item_map_in (buffer: COLLECTION[V_])
effective procedure
{ANY}
Append in buffer, all available items (this may be useful to speed up the traversal).
See also key_map_in.
require
  • buffer /= Void
ensure
  • buffer.count = count + old buffer.count
fast_is_equal (other: ZIP [V_, K_]): BOOLEAN
effective function
{ANY}
Do both dictionaries have the same set of associations?
Keys are compared with is_equal and values are compared with the basic = operator.
See also is_equal.
ensure
is_equal (other: ZIP [V_, K_]): BOOLEAN
effective function
{ANY}
Do both dictionaries have the same set of associations?
Both keys and values are compared with is_equal.
See also fast_is_equal.
require
    • other /= Void
    • other /= Void
ensure
  • commutative: generating_type = other.generating_type implies Result = other.is_equal(Current)
is_equal_map (other: ZIP [V_, K_]): BOOLEAN
effective function
{ANY}
Do both collections have the same lower, upper, and items?
This feature is obsolete: Use `is_equal' instead.
out_in_tagged_out_memory
effective procedure
{ANY}
Append terse printable representation of current object in tagged_out_memory.
require
    • locked: tagged_out_locked
    • locked: tagged_out_locked
ensure
  • still_locked: tagged_out_locked
  • not_cleared: tagged_out_memory.count >= old tagged_out_memory.count
  • append_only: old tagged_out_memory.twin.is_equal(tagged_out_memory.substring(1, old tagged_out_memory.count))
for_each (action: PROCEDURE[TUPLE[TUPLE 2[V_, K_]]])
effective procedure
{ANY}
Apply action to every [V_, K_] associations of Current.
See also for_all, exist.
require
  • action /= Void
do_all (action: ROUTINE[TUPLE[TUPLE 2[V_, K_]]])
frozen
effective procedure
{ANY}
Apply action to every [V_, K_] associations of Current.
This feature is obsolete: This feature is not secure because it accepts a FUNCTION, the result of which is lost. Plese use `for_each` instead.
for_all (test: FUNCTION[TUPLE[TUPLE 2[V_, K_]]]): BOOLEAN
effective function
{ANY}
Do all [V_, K_] associations satisfy test?
See also for_each, exist.
require
  • test /= Void
exists (test: FUNCTION[TUPLE[TUPLE 2[V_, K_]]]): BOOLEAN
effective function
{ANY}
Does at least one [V_, K_] association satisfy test?
See also for_all, for_each.
require
  • test /= Void
aggregate (action: FUNCTION[TUPLE[TUPLE 3[V_, V_, K_], V_]], initial: V_): V_
effective function
{ANY}
Aggregate all the elements starting from the initial value.
See also for_each, for_all, exists.
require
  • action /= Void
keys_memory: DICTIONARY_KEY_TRAVERSER[V_, K_]
writable attribute
{}
_inline_agent43 (v: V_, k: K_)
frozen
effective procedure
{}
enumerate: ENUMERATE[E_]
effective function
{ANY}
get_new_iterator: ITERATOR[E_]
frozen
effective function
{ANY}
This feature is obsolete: Use `new_iterator' instead. This historical SmartEiffel feature is badly named.
generation: INTEGER_32
writable attribute
{ANY}
next_generation
effective procedure
{}
ensure
_inline_agent1 (a: ROUTINE[TUPLE[TUPLE 1[E_]]], e: E_)
frozen
effective procedure
{}
valid_index (i: INTEGER_32): BOOLEAN
effective function
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True when i is valid (i.e., inside actual bounds).
See also lower, upper, item.
ensure
test (e1: E_, e2: E_): BOOLEAN
effective function
{ANY}
In order to avoid run-time type errors, feature safe_equal calls is_equal only when e1 and e2 have exactly the same dynamic type.
safe_equal (e1: E_, e2: E_): BOOLEAN
effective function
{ANY}
In order to avoid run-time type errors, feature safe_equal calls is_equal only when e1 and e2 have exactly the same dynamic type.