'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var tsInvariant = require('ts-invariant');
var process$1 = require('ts-invariant/process');
var graphql = require('graphql');

function maybe(thunk) {
    try {
        return thunk();
    }
    catch (_a) { }
}

var global$1 = (maybe(function () { return globalThis; }) ||
    maybe(function () { return window; }) ||
    maybe(function () { return self; }) ||
    maybe(function () { return global; }) ||
    maybe(function () { return maybe.constructor("return this")(); }));

var __ = "__";
var GLOBAL_KEY = [__, __].join("DEV");
function getDEV() {
    try {
        return Boolean(__DEV__);
    }
    catch (_a) {
        Object.defineProperty(global$1, GLOBAL_KEY, {
            value: maybe(function () { return process.env.NODE_ENV; }) !== "production",
            enumerable: false,
            configurable: true,
            writable: true,
        });
        return global$1[GLOBAL_KEY];
    }
}
var DEV = getDEV();

function removeTemporaryGlobals() {
    return typeof graphql.Source === "function" ? process$1.remove() : process$1.remove();
}

function checkDEV() {
    __DEV__ ? tsInvariant.invariant("boolean" === typeof DEV, DEV) : tsInvariant.invariant("boolean" === typeof DEV, 39);
}
removeTemporaryGlobals();
checkDEV();

exports.InvariantError = tsInvariant.InvariantError;
exports.invariant = tsInvariant.invariant;
exports.DEV = DEV;
exports.checkDEV = checkDEV;
exports.global = global$1;
exports.maybe = maybe;
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