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  • sweet-js
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  • #248
Closed
Open
Issue created Feb 09, 2014 by Administrator@rootContributor

macro in constructor fails.

Created by: stefanpenner

macro in constructor fails.

given:

macro a_slice {
  rule { ($arguments) } => {
    var length = $arguments.length;
    var args = new Array(length);
    for ( var i = 0; i < length; i++) {
      args[$arguments[i]];
    }
    args;
  }
}
// fails
var a = new Promise(function(){
  a_slice(arguments);
});
// works
var a = Promise(function(){
  a_slice(arguments);
});

editor example: http://sweetjs.org/browser/editor.html#macro%20a_slice%20%7B%0A%20%20rule%20%7B%20($arguments)%20%7D%20=%3E%20%7B%0A%20%20%20%20var%20length%20=%20$arguments.length;%0A%20%20%20%20var%20args%20=%20new%20Array(length);%0A%20%20%20%20for%20(%20var%20i%20=%200;%20i%20%3C%20length;%20i++)%20%7B%0A%20%20%20%20%20%20args.push($arguments%5Bi%5D);%0A%20%20%20%20%7D;%0A%20%20%20%20args;%0A%20%20%7D%0A%7D%0A%0Avar%20a%20=%20new%20Promise(function()%7B%0A%20%20a_slice(arguments);%0A%7D);%0A

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