prototype.js - mozsearch

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const t = RegExp.prototype;

let properties = "toString,compile,exec,test," +

                 "flags,dotAll,global,hasIndices,ignoreCase,multiline,source,sticky,unicode,unicodeSets," +

                 "constructor," +

                 "Symbol(Symbol.match),Symbol(Symbol.replace),Symbol(Symbol.search),Symbol(Symbol.split)";

if (Object.prototype.toSource) {

    properties = "toSource," + properties;

if (Symbol.matchAll) {

    properties += ",Symbol(Symbol.matchAll)";

assertEqArray(Reflect.ownKeys(t).map(String).sort(), properties.split(",").sort());

// Invoking getters on the prototype should not throw

function getter(name) {

    return Object.getOwnPropertyDescriptor(t, name).get.call(t);

assertEq(getter("flags"), "");

assertEq(getter("global"), undefined);

assertEq(getter("ignoreCase"), undefined);

assertEq(getter("multiline"), undefined);

assertEq(getter("source"), "(?:)");

assertEq(getter("sticky"), undefined);

assertEq(getter("unicode"), undefined);

assertEq(t.toString(), "/(?:)/");

// The methods don't work with the prototype

assertThrowsInstanceOf(() => t.compile("b", "i"), TypeError);

assertThrowsInstanceOf(() => t.test("x"), TypeError);

assertThrowsInstanceOf(() => t.exec("x"), TypeError);

if (typeof reportCompare === "function")

    reportCompare(0, 0);