Sha256: 05c84459754a3f05b0cd0485bb3ba9f740c286245560027c22143b6ca9d15da3
Contents?: true
Size: 1.26 KB
Versions: 11
Compression:
Stored size: 1.26 KB
Contents
class Hash
unless ({}.transform_keys(:x => 1) rescue false)
require 'backports/2.5.0/hash/transform_keys'
require 'backports/tools/alias_method_chain'
def transform_keys_with_hash_arg(hash = not_given = true, &block)
return to_enum(:transform_keys) { size } if not_given && !block
return transform_keys_without_hash_arg(&block) if not_given
h = {}
if block_given?
each do |key, value|
h[hash.fetch(key) { yield key }] = value
end
else
each do |key, value|
h[hash.fetch(key, key)] = value
end
end
h
end
Backports.alias_method_chain self, :transform_keys, :hash_arg
def transform_keys_with_hash_arg!(hash = not_given = true, &block)
return enum_for(:transform_keys!) { size } if not_given && !block
return transform_keys_without_hash_arg!(&block) if not_given
h = {}
begin
if block_given?
each do |key, value|
h[hash.fetch(key) { yield key }] = value
end
else
each do |key, value|
h[hash.fetch(key, key)] = value
end
end
ensure
replace(h)
end
self
end
Backports.alias_method_chain self, :transform_keys!, :hash_arg
end
end
Version data entries
11 entries across 11 versions & 1 rubygems