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elixir_script

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ElixirScript: compiles Elixir code to JavaScript

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elixir_script priv javascript lib kernel special_forms.js
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priv/javascript/lib/kernel/special_forms.js 

import Erlang from '../erlang';



let SpecialForms = {

  __MODULE__: Erlang.atom('SpecialForms'),



  import: function(module, opts, context = this){

    if(opts.length === 0){

      for(let [key, value] of module){

        context[key] = value;

      }

    }else if(opts[Erlang.atom("only")]){

      for(let item of opts[Erlang.atom("only")]){

        let key = Symbol.keyFor(item.get(0));

        context[key] = module[key];

      }

    }else if(opts[Erlang.atom("except")]){

      let except_list = opts[Erlang.atom("except")];



      for(let [key, value] of module){

        for(let i = 0; i < except_list.length; i++){

          if(except_list[i] === Erlang.atom(key)){

            context[key] = value;

          }

        }

      }

    }

  },



  alias: function(module, opts, context = this){

    let alias = Symbol.keyFor(module.__MODULE__);



    if(opts[Erlang.atom("as")]){

      alias = Symbol.keyFor(opts[Erlang.atom("as")]);

    }



    context[alias] = module;

  },



  require: function(module, opts, context = this){

    if(module === undefined){

      throw new Error("module is not loaded and could not be found");

    }



    SpecialForms.alias(module, opts, context);

  }

};



export default SpecialForms;