import yaml in haxe at compile time

build.hxml

-js main.js
-main Main
-lib yaml
-dce full
-D analyzer

invoice.yaml

invoice: 34843
date   : 2001-01-23
bill_to: &id001
  given  : Chris
  family : Dumars
  address:
    lines: |
      458 Walkman Dr.
      Suite #292
    city    : Royal Oak
    state   : MI
    postal  : 48046
ship_to: *id001
tax  : 251.42
457: true
total: 4443.52
comments: >
  Late afternoon is best.
  Backup contact is Nancy
  Billsmer @ 338-4338.

Main.hx

#if macro
  import yaml.Yaml;
  import yaml.Parser;
  import yaml.Renderer;
  import yaml.util.ObjectMap;
  import haxe.macro.Context;
#end

class Main {

  macro static function load_yaml(file:String) {
    var data = Yaml.read(file, Parser.options().useObjects());
    var s = haxe.Json.stringify(data);
    var json = haxe.Json.parse(s);
    return Context.makeExpr(json, Context.currentPos());
  }

  static function main() {

      var json = load_yaml('invoice.yaml');
      trace(json);
  }
}

main.js

(function (console) { "use strict";
var Main = function() { };
Main.main = function() {
	var json = { total : 4443.52, ship_to : { address : { state : "MI", postal : 48046, lines : "458 Walkman Dr.\nSuite #292\n", city : "Royal Oak"}, given : "Chris", family : "Dumars"}, tax : 251.42, '457' : true, bill_to : { address : { state : "MI", postal : 48046, lines : "458 Walkman Dr.\nSuite #292\n", city : "Royal Oak"}, given : "Chris", family : "Dumars"}, invoice : 34843, date : "2001-01-23 00:00:00", comments : "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.\n"};
	console.log(json);
};
Main.main();
})(typeof console != "undefined" ? console : {log:function(){}});