“use strict”;

Object.defineProperty(exports, “__esModule”, {

value: true

}); exports.default = void 0;

function _helperPluginUtils() {

const data = require("@babel/helper-plugin-utils");

_helperPluginUtils = function () {
  return data;
};

return data;

}

function _core() {

const data = require("@babel/core");

_core = function () {
  return data;
};

return data;

}

var _default = (0, _helperPluginUtils().declare)(api => {

api.assertVersion(7);
return {
  name: "transform-typeof-symbol",
  visitor: {
    Scope({
      scope
    }) {
      if (!scope.getBinding("Symbol")) {
        return;
      }

      scope.rename("Symbol");
    },

    UnaryExpression(path) {
      const {
        node,
        parent
      } = path;
      if (node.operator !== "typeof") return;

      if (path.parentPath.isBinaryExpression() && _core().types.EQUALITY_BINARY_OPERATORS.indexOf(parent.operator) >= 0) {
        const opposite = path.getOpposite();

        if (opposite.isLiteral() && opposite.node.value !== "symbol" && opposite.node.value !== "object") {
          return;
        }
      }

      const helper = this.addHelper("typeof");
      const isUnderHelper = path.findParent(path => {
        return path.isVariableDeclarator() && path.node.id === helper || path.isFunctionDeclaration() && path.node.id && path.node.id.name === helper.name;
      });

      if (isUnderHelper) {
        return;
      }

      const call = _core().types.callExpression(helper, [node.argument]);

      const arg = path.get("argument");

      if (arg.isIdentifier() && !path.scope.hasBinding(arg.node.name, true)) {
        const unary = _core().types.unaryExpression("typeof", _core().types.cloneNode(node.argument));

        path.replaceWith(_core().types.conditionalExpression(_core().types.binaryExpression("===", unary, _core().types.stringLiteral("undefined")), _core().types.stringLiteral("undefined"), call));
      } else {
        path.replaceWith(call);
      }
    }

  }
};

});

exports.default = _default;