/* @flow */

function takesANumber(num: number): void {}
function takesAString(str: string): void {}

// @providesModule
var A = require("A");
takesANumber(A.numberValue);
takesAString(A.numberValue);

// File path
var B = require("./B");
takesANumber(B.numberValue);
takesAString(B.numberValue);

// C.js exists, but not as a providesModule
require("C");

// @providesModule D exists, but not as a filename
require("./D");

// E exports an object with a numVal property
var E = require('./E');
var e_1: number = E.numberValue;
E.stringValue; // Error: The E exports obj has no 'stringValue' property

// We require that the param passed to require() be a string literal to support
// guaranteed static extraction
var a = './E';
require(a); // Error: Param must be string literal
require(`./E`); // template literals are ok...
require(`${'./E'}`); // error: but only if they have no expressions

// require.call is allowed but circumverts Flow's static analysis
require.call(null, "DoesNotExist");