numenor/lib/Compiler/Evaluator/Await.js

Customizable, safe evaluator of JavaScript-like expressions.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Await = void 0;

var _ = require("./");

var _Parser = require("../../Parser");

var _Error = require("../Error");

var Await = function Await(expr, options, compile) {
  if (expr.type !== _Parser.ExpressionType.Await) {
    throw new TypeError((0, _Error.UnknownExpression)(expr));
  }

  var rhs = compile(expr.rhs, options, compile);
  var isConst = (0, _.hasConstValue)(rhs);
  return (0, _.mark)({
    isConst: isConst,
    isAsync: true
  }, function (context, stack) {
    var thenable = rhs(context, stack);

    if (Array.isArray(thenable)) {
      return Promise.all(thenable);
    }

    if (!thenable || typeof thenable.then !== 'function') {
      return Promise.resolve(thenable);
    }

    return thenable;
  });
};

exports.Await = Await;