Packages

bin_struct

0.2.14
0.2.34 0.2.33 0.2.32 0.2.31 0.2.30 0.2.29 0.2.28 0.2.27 0.2.26 0.2.25 0.2.24 0.2.23 0.2.22 0.2.21 0.2.20 0.2.19 0.2.18 0.2.17 0.2.16 0.2.15 0.2.14 0.2.13 0.2.12 0.2.11 0.2.10 0.2.9 0.2.8 0.2.7

BinStruct is a library which provides you rich set of tools for parsing/encoding binaries

HexDocs

Current section

Files

Jump to
Readme
28 Versions
1 Dependency
Dependants
Files
Activity
bin_struct lib bin_struct macro parse wrap_with_optional_by.ex
Raw

lib/bin_struct/macro/parse/wrap_with_optional_by.ex 

defmodule BinStruct.Macro.Parse.WrapWithOptionalBy do



  @moduledoc false



  alias BinStruct.Macro.RegisteredCallbackFunctionCall

  alias BinStruct.Macro.Structs.RegisteredCallbacksMap



  def wrap_with_optional_by(

        body_expr,

        optional_by,

        binary_bind,

        %RegisteredCallbacksMap{} = registered_callbacks_map,

        context

      ) do



    optional_by = RegisteredCallbacksMap.get_registered_callback_by_callback(registered_callbacks_map, optional_by)



    optional_by_function_call =

        RegisteredCallbackFunctionCall.registered_callback_function_call(optional_by, context)



    options_bind = { :options, [], context }



    quote do



      opt_enabled = unquote(optional_by_function_call)



      if opt_enabled do

        unquote(body_expr)

      else

        { :ok, nil, unquote(binary_bind), unquote(options_bind) }

      end



    end



  end



  def maybe_wrap_with_optional_by(body_expr, _optional_by = nil, _binary_bind, _registered_callbacks_map, _context), do: body_expr



  def maybe_wrap_with_optional_by(body_expr, optional_by, binary_bind, registered_callbacks_map, context),

      do: wrap_with_optional_by(body_expr, optional_by, binary_bind, registered_callbacks_map, context)





end