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Versions: 5
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Contents
module Alf
module Lang
module ObjectOriented
module RenderingMethods
def self.def_renderer_method(name, clazz)
define_method(:"to_#{name}") do |*args|
options, io = nil
args.each do |arg|
options ||= arg if arg.is_a?(Hash)
io ||= arg if arg.respond_to?(:<<)
end
to_array(options || {}) do |arr|
io ||= ""
clazz.new(arr, options).execute(io)
io
end
end
end
def to_array(options = {})
_with_ordering(options) do |o|
op = Alf::Engine::ToArray.new(to_cog, o)
block_given? ? yield(op) : op.to_a
end
end
def to_a(options = nil)
to_array(options || {})
end
Renderer.listen do |name,clazz|
def_renderer_method(name, clazz)
end
private
def _with_ordering(options, &bl)
case options
when Array, Ordering
_with_ordering(:sort => options, &bl)
when Hash
ordering = options.delete(:order) || options.delete(:sort)
ordering = Ordering.coerce(ordering || [])
yield(ordering)
else
::Kernel.raise "Invalid ordering `#{options}`"
end
end
end # module RenderingMethods
end # module ObjectOriented
end # module Lang
end # module Alf
Version data entries
5 entries across 5 versions & 1 rubygems