Class: Hash
- Inherits:
-
Object
show all
- Defined in:
- lib/vendor/backports-3.3.5/lib/backports/rails/hash.rb,
lib/vendor/backports-3.3.5/lib/backports/1.8.7/hash/hash.rb,
lib/vendor/backports-3.3.5/lib/backports/2.0.0/hash/to_h.rb,
lib/vendor/backports-3.3.5/lib/backports/1.9.1/hash/assoc.rb,
lib/vendor/backports-3.3.5/lib/backports/1.9.1/hash/rassoc.rb,
lib/vendor/backports-3.3.5/lib/backports/1.9.2/hash/select.rb,
lib/vendor/backports-3.3.5/lib/backports/force/hash_select.rb,
lib/vendor/backports-3.3.5/lib/backports/1.9.2/hash/keep_if.rb,
lib/vendor/backports-3.3.5/lib/backports/1.9.1/hash/default_proc.rb,
lib/vendor/backports-3.3.5/lib/backports/2.0.0/hash/default_proc.rb
Class Method Summary
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Instance Method Summary
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Class Method Details
.[](*args) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.8.7/hash/constructor.rb', line 6
def [](*args)
if args.length == 1
arg = args.first
if (h = Backports.try_convert(arg, Hash, :to_hash))
return allocate.replace(h)
end
if (kvps = Backports.is_array?(arg))
h = {}
kvps.each do |elem|
next unless arr = Backports.is_array?(elem)
next unless (1..2).include? arr.size
h[arr.at(0)] = arr.at(1)
end
return h
end
end
constructor_without_key_value_pair_form(*args)
end
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.8.7/hash/constructor.rb', line 5
alias_method :constructor_without_key_value_pair_form, :[]
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.try_convert(x) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.9.1/hash/try_convert.rb', line 4
def Hash.try_convert(x)
Backports.try_convert(x, Hash, :to_hash)
end
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Instance Method Details
#assoc(key) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.9.1/hash/assoc.rb', line 3
def assoc(key)
val = fetch(key) do
return find do |k, v|
[k, v] if k == key
end
end
[key, val]
end
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#default_proc=(proc) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.9.1/hash/default_proc.rb', line 5
def default_proc=(proc)
if proc == nil self.default = nil
self
else
replace(Hash.new(&Backports.coerce_to(proc, Proc, :to_proc)).merge!(self))
end
end
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#default_proc_with_nil=(proc) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/2.0.0/hash/default_proc.rb', line 6
def default_proc_with_nil=(proc)
if proc == nil
self.default = nil
self
else
self.default_proc_without_nil=(proc)
end
end
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#eql?(other) ⇒ Boolean
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.8.7/hash/hash.rb', line 10
def eql?(other)
other.is_a?(Hash) &&
size == other.size &&
all? do |key, value|
value.eql?(other.fetch(key){return false})
end
end
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.8.7/hash/hash.rb', line 2
def hash
h = 0
each do |key, value|
h ^= key.hash ^ value.hash
end
h
end
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.9.2/hash/keep_if.rb', line 3
def keep_if
return to_enum(:keep_if) unless block_given?
delete_if{|key, value| ! yield key, value}
end
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#rassoc(value) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.9.1/hash/rassoc.rb', line 3
def rassoc(value)
k = key(value)
v = fetch(k){return nil}
[k, fetch(k)] if k || v == value
end
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#reverse_merge(other_hash) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/rails/hash.rb', line 3
def reverse_merge(other_hash)
other_hash.merge(self)
end
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#reverse_merge!(other_hash) ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/rails/hash.rb', line 8
def reverse_merge!(other_hash)
replace(reverse_merge(other_hash))
end
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# File 'lib/vendor/backports-3.3.5/lib/backports/1.9.2/hash/select.rb', line 3
def select!
return to_enum(:select!) unless block_given?
raise "can't modify frozen hash" if frozen? reject!{|key, value| ! yield key, value}
end
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#select_with_hash_return ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/force/hash_select.rb', line 3
def select_with_hash_return
return to_enum(:select) unless block_given?
Hash[select_without_hash_return{|k, v| yield [k, v]}]
end
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#stringify_keys ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/rails/hash.rb', line 23
def stringify_keys
Hash[map{|key,value| [key.to_s, value] }]
end
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#stringify_keys! ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/rails/hash.rb', line 28
def stringify_keys!
self.replace(self.stringify_keys)
end
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#symbolize_keys ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/rails/hash.rb', line 13
def symbolize_keys
Hash[map{|key,value| [(key.to_sym rescue key) || key, value] }]
end
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#symbolize_keys! ⇒ Object
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# File 'lib/vendor/backports-3.3.5/lib/backports/rails/hash.rb', line 18
def symbolize_keys!
self.replace(self.symbolize_keys)
end
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# File 'lib/vendor/backports-3.3.5/lib/backports/2.0.0/hash/to_h.rb', line 3
def to_h
self.class == Hash ? self : {}.replace(self)
end
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