“use strict”;

Object.defineProperty(exports, “__esModule”, {

value: true

}); exports.default = _default;

function _helperGetFunctionArity() {

const data = _interopRequireDefault(require("@babel/helper-get-function-arity"));

_helperGetFunctionArity = function () {
  return data;
};

return data;

}

function _template() {

const data = _interopRequireDefault(require("@babel/template"));

_template = function () {
  return data;
};

return data;

}

function t() {

const data = _interopRequireWildcard(require("@babel/types"));

t = function () {
  return data;
};

return data;

}

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)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj = obj; } } } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const buildPropertyMethodAssignmentWrapper = (0, _template().default)(`

(function (FUNCTION_KEY) {
  function FUNCTION_ID() {
    return FUNCTION_KEY.apply(this, arguments);
  }

  FUNCTION_ID.toString = function () {
    return FUNCTION_KEY.toString();
  }

  return FUNCTION_ID;
})(FUNCTION)

`); const buildGeneratorPropertyMethodAssignmentWrapper = (0, _template().default)(`

(function (FUNCTION_KEY) {
  function* FUNCTION_ID() {
    return yield* FUNCTION_KEY.apply(this, arguments);
  }

  FUNCTION_ID.toString = function () {
    return FUNCTION_KEY.toString();
  };

  return FUNCTION_ID;
})(FUNCTION)

`); const visitor = {

"ReferencedIdentifier|BindingIdentifier"(path, state) {
  if (path.node.name !== state.name) return;
  const localDeclar = path.scope.getBindingIdentifier(state.name);
  if (localDeclar !== state.outerDeclar) return;
  state.selfReference = true;
  path.stop();
}

};

function getNameFromLiteralId(id) {

if (t().isNullLiteral(id)) {
  return "null";
}

if (t().isRegExpLiteral(id)) {
  return `_${id.pattern}_${id.flags}`;
}

if (t().isTemplateLiteral(id)) {
  return id.quasis.map(quasi => quasi.value.raw).join("");
}

if (id.value !== undefined) {
  return id.value + "";
}

return "";

}

function wrap(state, method, id, scope) {

if (state.selfReference) {
  if (scope.hasBinding(id.name) && !scope.hasGlobal(id.name)) {
    scope.rename(id.name);
  } else {
    if (!t().isFunction(method)) return;
    let build = buildPropertyMethodAssignmentWrapper;

    if (method.generator) {
      build = buildGeneratorPropertyMethodAssignmentWrapper;
    }

    const template = build({
      FUNCTION: method,
      FUNCTION_ID: id,
      FUNCTION_KEY: scope.generateUidIdentifier(id.name)
    }).expression;
    const params = template.callee.body.body[0].params;

    for (let i = 0, len = (0, _helperGetFunctionArity().default)(method); i < len; i++) {
      params.push(scope.generateUidIdentifier("x"));
    }

    return template;
  }
}

method.id = id;
scope.getProgramParent().references[id.name] = true;

}

function visit(node, name, scope) {

const state = {
  selfAssignment: false,
  selfReference: false,
  outerDeclar: scope.getBindingIdentifier(name),
  references: [],
  name: name
};
const binding = scope.getOwnBinding(name);

if (binding) {
  if (binding.kind === "param") {
    state.selfReference = true;
  } else {}
} else if (state.outerDeclar || scope.hasGlobal(name)) {
  scope.traverse(node, visitor, state);
}

return state;

}

function _default({

node,
parent,
scope,
id

}, localBinding = false) {

if (node.id) return;

if ((t().isObjectProperty(parent) || t().isObjectMethod(parent, {
  kind: "method"
})) && (!parent.computed || t().isLiteral(parent.key))) {
  id = parent.key;
} else if (t().isVariableDeclarator(parent)) {
  id = parent.id;

  if (t().isIdentifier(id) && !localBinding) {
    const binding = scope.parent.getBinding(id.name);

    if (binding && binding.constant && scope.getBinding(id.name) === binding) {
      node.id = t().cloneNode(id);
      node.id[t().NOT_LOCAL_BINDING] = true;
      return;
    }
  }
} else if (t().isAssignmentExpression(parent)) {
  id = parent.left;
} else if (!id) {
  return;
}

let name;

if (id && t().isLiteral(id)) {
  name = getNameFromLiteralId(id);
} else if (id && t().isIdentifier(id)) {
  name = id.name;
}

if (name === undefined) {
  return;
}

name = t().toBindingIdentifierName(name);
id = t().identifier(name);
id[t().NOT_LOCAL_BINDING] = true;
const state = visit(node, name, scope);
return wrap(state, node, id, scope) || node;

}