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Contents
module JsonapiCompliable
module Util
# @api private
class Hash
# Grab all keys at any level of the hash.
#
# { foo: { bar: { baz: {} } } }
#
# Becomes
#
# [:foo, :bar, :bar]
#
# @param hash the hash we want to process
# @param [Array<Symbol, String>] collection the memoized collection of keys
# @return [Array<Symbol, String>] the keys
# @api private
def self.keys(hash, collection = [])
hash.each_pair do |key, value|
collection << key
keys(value, collection)
end
collection
end
# Like ActiveSupport's #deep_merge
# @return [Hash] the merged hash
# @api private
def self.deep_merge!(hash, other)
merger = proc { |key, v1, v2| Hash === v1 && Hash === v2 ? v1.merge(v2, &merger) : v2 }
hash.merge!(other, &merger)
end
# Like ActiveSupport's #deep_dup
# @api private
def self.deep_dup(hash)
if hash.respond_to?(:deep_dup)
hash.deep_dup
else
{}.tap do |duped|
hash.each_pair do |key, value|
value = deep_dup(value) if value.is_a?(Hash)
value = value.dup if value && value.respond_to?(:dup) && ![Symbol, Fixnum].include?(value.class)
duped[key] = value
end
end
end
end
end
end
end
Version data entries
65 entries across 65 versions & 1 rubygems