System.register("ForInStatement", [], function() {
  "use strict";
  var __moduleName = "ForInStatement";
  function require(path) {
    return $traceurRuntime.require("ForInStatement", path);
  }
  "use strict";
  (function() {
    var Node = module.require("../Node").Node;
    function ForInStatement(item, index, array, body) {
      Node.call(this);
      this.type = "ForInStatement";
      this.item = item;
      this.item.parent = this;
      this.index = index;
      if (typeof this.index !== "undefined" && this.index !== null) {
        this.index.parent = this;
      }
      this.array = array;
      this.array.parent = this;
      this.body = body;
      this.body.parent = this;
    }
    ForInStatement.prototype = Object.create(Node);
    ForInStatement.prototype.codegen = function() {
      if (!Node.prototype.codegen.call(this)) {
        return;
      }
      this.item = this.item.codegen(false);
      if (typeof this.index !== "undefined" && this.index !== null) {
        var context = this.getContext();
        this.index = this.index.codegen(false);
        context.node.body.splice(context.position, 0, {
          "type": "VariableDeclaration",
          "declarations": [{
            "type": "VariableDeclarator",
            "id": this.index,
            "init": {
              "type": "Literal",
              "value": 0
            }
          }],
          "kind": "let"
        });
      }
      if (!this.array.codeGenerated) {
        this.array = this.array.codegen();
      }
      this.body = this.body.blockWrap();
      this.body.defineIdentifier(this.item);
      if (typeof this.index !== "undefined" && this.index !== null) {
        this.body.defineIdentifier(this.index);
      }
      this.body = this.body.codegen();
      if (typeof this.index !== "undefined" && this.index !== null) {
        this.body.body.push({
          "type": "ExpressionStatement",
          "codeGenerated": true,
          "expression": {
            "type": "UpdateExpression",
            "operator": "++",
            "argument": this.index,
            "prefix": false
          }
        });
      }
      this.type = "ForOfStatement";
      this.right = this.array;
      this.left = {
        "type": "VariableDeclaration",
        "declarations": [{
          "type": "VariableDeclarator",
          "id": this.item,
          "init": null
        }],
        "kind": "let"
      };
      this.each = false;
      return this;
    };
    exports.ForInStatement = ForInStatement;
  }());
  return {};
});
System.get("ForInStatement" + '');