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mazurka
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hypermedia api toolkit
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lib/mazurka/partial.ex
defmodule Mazurka.Partial do
defmacro __using__(_) do
quote do
import unquote(__MODULE__)
end
end
defmacro defpartial({name, _, _}, [do: content]) do
quote do
def unquote("#{name}_partial" |> String.to_atom)(unquote_splicing(args)) do
unquote_splicing(Mazurka.Compiler.Kernel.imports)
unquote(__MODULE__).__exec__(unquote(name), unquote(content))
end
end
end
defmacro __exec__(name, content) do
parent = __CALLER__.module
mod = [parent, "Etude" <> to_string(:erlang.phash2({name, content}))] |> Module.concat()
content
|> Mazurka.Compiler.Utils.expand(__CALLER__)
|> name_fun()
|> Mazurka.Compiler.Etude.elixir_to_etude(parent)
|> Mazurka.Compiler.compile_etude(mod, __CALLER__)
quote do
unquote(mod).exec_partial(unquote_splicing(args))
end
end
defp args do
[:state__, :resolve__, :req__, :scope__, :props__]
|> Enum.map(&(Macro.var(&1, nil)))
end
defp name_fun(content) do
[exec: quote do
res = unquote(content)
res
end]
end
end