text: "use strict";
  
  exports.__esModule = true;
  exports.visitor = undefined;
  
  var _babelTypes = require("babel-types");
  
  var t = _interopRequireWildcard(_babelTypes);
  
  function _interopRequireWildcard(obj) {
      if (obj && obj.__esModule) {
          return obj;
      } else {
          var newObj = {};
          if (obj != null) {
              for (var key in obj) {
                  if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
              }
          }
          newObj.default = obj;
          return newObj;
      }
  }
  
  function getTDZStatus(refPath, bindingPath) {
      var executionStatus = bindingPath._guessExecutionStatusRelativeTo(refPath);
  
      if (executionStatus === "before") {
          return "inside";
      } else if (executionStatus === "after") {
          return "outside";
      } else {
          return "maybe";
      }
  }
  
  function buildTDZAssert(node, file) {
      return t.callExpression(file.addHelper("temporalRef"), [node, t.stringLiteral(node.name), file.addHelper("temporalUndefined")]);
  }
  
  function isReference(node, scope, state) {
      var declared = state.letReferences[node.name];
      if (!declared) return false;
  
      return scope.getBindingIdentifier(node.name) === declared;
  }
  
  var visitor = exports.visitor = {
      ReferencedIdentifier: function ReferencedIdentifier(path, state) {
          if (!this.file.opts.tdz) return;
  
          var node = path.node,
              parent = path.parent,
              scope = path.scope;
  
  
          if (path.parentPath.isFor({left: node})) return;
          if (!isReference(node, scope, state)) return;
  
          var bindingPath = scope.getBinding(node.name).path;
  
          var status = getTDZStatus(path, bindingPath);
          if (status === "inside") return;
  
          if (status === "maybe") {
              var assert = buildTDZAssert(node, state.file);
  
              bindingPath.parent._tdzThis = true;
  
              path.skip();
  
              if (path.parentPath.isUpdateExpression()) {
                  if (parent._ignoreBlockScopingTDZ) return;
                  path.parentPath.replaceWith(t.sequenceExpression([assert, parent]));
              } else {
                  path.replaceWith(assert);
              }
          } else if (status === "outside") {
              path.replaceWith(t.throwStatement(t.inherits(t.newExpression(t.identifier("ReferenceError"), [t.stringLiteral(node.name + " is not defined - temporal dead zone")]), node)));
          }
      },
  
  
      AssignmentExpression: {
          exit: function exit(path, state) {
              if (!this.file.opts.tdz) return;
  
              var node = path.node;
  
              if (node._ignoreBlockScopingTDZ) return;
  
              var nodes = [];
              var ids = path.getBindingIdentifiers();
  
              for (var name in ids) {
                  var id = ids[name];
  
                  if (isReference(id, path.scope, state)) {
                      nodes.push(buildTDZAssert(id, state.file));
                  }
              }
  
              if (nodes.length) {
                  node._ignoreBlockScopingTDZ = true;
                  nodes.push(node);
                  path.replaceWithMultiple(nodes.map(t.expressionStatement));
              }
          }
      }
  };