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Contents
class Lastfm
class Util
def self.force_array(array_or_something)
array_or_something.kind_of?(Array) ? array_or_something : [array_or_something]
end
def self.build_options(args, mandatory, optional)
if args.first.is_a?(Hash)
build_options_from_hash(args.first, mandatory || [], optional || [])
else
build_options_from_array(args, mandatory || [], optional || [])
end
end
def self.build_options_from_hash(options, mandatory, optional)
candidates = mandatory.kind_of?(AnyParams) ? mandatory.candidates : [mandatory]
candidates.each_with_index do |params, index|
Array(params).each do |param|
if !options.has_key?(param)
if params.equal? candidates.last
raise ArgumentError.new("%s is required" % param)
else
next
end
end
end
break
end
optional.each do |name, value|
options[name] ||= value.kind_of?(Proc) ? value.call : value
end
options
end
def self.build_options_from_array(values, mandatory, optional)
options = {}
mandatory.each_with_index do |name, index|
raise ArgumentError.new('%s is required' % name) unless values[index]
options[name] = values[index]
end
optional.each_with_index do |name, index|
value = name[1]
if value.kind_of?(Proc)
value = value.call
end
options[name[0]] = values[index + mandatory.size] || value
end
options
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems