babel-helper-explode-assignable-expression/lib/index.js

"use strict";

exports.__esModule = true;

exports.default = function (node, nodes, file, scope, allowedSingleIdent) {
  var obj = void 0;
  if (t.isIdentifier(node) && allowedSingleIdent) {
    obj = node;
  } else {
    obj = getObjRef(node, nodes, file, scope);
  }

  var ref = void 0,
      uid = void 0;

  if (t.isIdentifier(node)) {
    ref = node;
    uid = obj;
  } else {
    var prop = getPropRef(node, nodes, file, scope);
    var computed = node.computed || t.isLiteral(prop);
    uid = ref = t.memberExpression(obj, prop, computed);
  }

  return {
    uid: uid,
    ref: ref
  };
};

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 getObjRef(node, nodes, file, scope) {
  var ref = void 0;
  if (t.isSuper(node)) {
    return node;
  } else if (t.isIdentifier(node)) {
    if (scope.hasBinding(node.name)) {
      return node;
    } else {
      ref = node;
    }
  } else if (t.isMemberExpression(node)) {
    ref = node.object;

    if (t.isSuper(ref) || t.isIdentifier(ref) && scope.hasBinding(ref.name)) {
      return ref;
    }
  } else {
    throw new Error("We can't explode this node type " + node.type);
  }

  var temp = scope.generateUidIdentifierBasedOnNode(ref);
  nodes.push(t.variableDeclaration("var", [t.variableDeclarator(temp, ref)]));
  return temp;
}

function getPropRef(node, nodes, file, scope) {
  var prop = node.property;
  var key = t.toComputedKey(node, prop);
  if (t.isLiteral(key) && t.isPureish(key)) return key;

  var temp = scope.generateUidIdentifierBasedOnNode(prop);
  nodes.push(t.variableDeclaration("var", [t.variableDeclarator(temp, prop)]));
  return temp;
}

module.exports = exports["default"];