module Hash::MutableWrapper(K, V)
Overview
Wraps a Hash object. The including type will behave as a hash, where
objects returned by methods will be wrapped as well if the return type
is the same as the original hash.
class Table
include HashWrapper::Mutable(String, Int32)
end
table = Table.new {"a" => 1, "b" => 2}
table["a"]? # => 1
table["b"]? # => 2
table["c"]? # => nil
table["c"] = 3
table.select { |_, v| v > 2 } # => Table{"b" => 2}
table["a"] = -1
table["c"] = 3
table["a"]? # => -1
table["c"]? # => 3
table.select!("a")
table.keys # => ["a"]Included Modules
Defined in:
views/hash_wrapper_mutable.crConstructors
Macro Summary
Instance methods inherited from module Hash::Wrapper(K, V)
[](*args, **options)[](*args, **options, &) [], []?(*args, **options)
[]?(*args, **options, &) []?, compact(*args, **options)
compact(*args, **options, &) compact, dig(*args, **options)
dig(*args, **options, &) dig, dig?(*args, **options)
dig?(*args, **options, &) dig?, each(*args, **options)
each(*args, **options, &) each, each_key(*args, **options)
each_key(*args, **options, &) each_key, each_value(*args, **options)
each_value(*args, **options, &) each_value, empty?(*args, **options)
empty?(*args, **options, &) empty?, fetch(*args, **options)
fetch(*args, **options, &) fetch, first_key(*args, **options)
first_key(*args, **options, &) first_key, first_key?(*args, **options)
first_key?(*args, **options, &) first_key?, first_value(*args, **options)
first_value(*args, **options, &) first_value, first_value?(*args, **options)
first_value?(*args, **options, &) first_value?, has_key?(*args, **options)
has_key?(*args, **options, &) has_key?, has_value?(*args, **options)
has_value?(*args, **options, &) has_value?, inspect(io : IO) : Nil inspect, invert(*args, **options)
invert(*args, **options, &) invert, key_for(*args, **options)
key_for(*args, **options, &) key_for, key_for?(*args, **options)
key_for?(*args, **options, &) key_for?, keys(*args, **options)
keys(*args, **options, &) keys, last_key(*args, **options)
last_key(*args, **options, &) last_key, last_key?(*args, **options)
last_key?(*args, **options, &) last_key?, last_value(*args, **options)
last_value(*args, **options, &) last_value, last_value?(*args, **options)
last_value?(*args, **options, &) last_value?, merge(*args, **options)
merge(*args, **options, &) merge, proper_subset_of?(*args, **options)
proper_subset_of?(*args, **options, &) proper_subset_of?, proper_superset_of?(*args, **options)
proper_superset_of?(*args, **options, &) proper_superset_of?, reject(*args, **options)
reject(*args, **options, &) reject, select(*args, **options)
select(*args, **options, &) select, size(*args, **options)
size(*args, **options, &) size, subset_of?(*args, **options)
subset_of?(*args, **options, &) subset_of?, superset_of?(*args, **options)
superset_of?(*args, **options, &) superset_of?, to_a(*args, **options)
to_a(*args, **options, &) to_a, to_h : Hash(K, V) to_h, to_s(*args, **options)
to_s(*args, **options, &) to_s, transform_keys(*args, **options)
transform_keys(*args, **options, &) transform_keys, transform_values(*args, **options)
transform_values(*args, **options, &) transform_values, values(*args, **options)
values(*args, **options, &) values, values_at(*args, **options)
values_at(*args, **options, &) values_at
Constructor methods inherited from module Hash::Wrapper(K, V)
new(wrapped : Hash(K, V) = {} of K => V)
new
Instance methods inherited from module Wrapper(Hash(K, V))
==(rhs : T(K, V)) : Bool==(rhs : self) : Bool ==, pretty_print(*args, **options)
pretty_print(*args, **options, &) pretty_print, to_s(*args, **options)
to_s(*args, **options, &) to_s, wrapped : T(K, V) wrapped