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url: use private properties for brand check
1 parent 928a2b0 commit a44caa3

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6 files changed

+69
-117
lines changed

6 files changed

+69
-117
lines changed

lib/internal/modules/cjs/loader.js

+2-2
Original file line numberDiff line numberDiff line change
@@ -79,7 +79,7 @@ const { BuiltinModule } = require('internal/bootstrap/loaders');
7979
const {
8080
maybeCacheSourceMap,
8181
} = require('internal/source_map/source_map_cache');
82-
const { pathToFileURL, fileURLToPath, isURLInstance } = require('internal/url');
82+
const { pathToFileURL, fileURLToPath, isURL } = require('internal/url');
8383
const {
8484
deprecate,
8585
emitExperimentalWarning,
@@ -1396,7 +1396,7 @@ const createRequireError = 'must be a file URL object, file URL string, or ' +
13961396
function createRequire(filename) {
13971397
let filepath;
13981398

1399-
if (isURLInstance(filename) ||
1399+
if (isURL(filename) ||
14001400
(typeof filename === 'string' && !path.isAbsolute(filename))) {
14011401
try {
14021402
filepath = fileURLToPath(filename);

lib/internal/modules/esm/hooks.js

+2-2
Original file line numberDiff line numberDiff line change
@@ -21,7 +21,7 @@ const {
2121
ERR_INVALID_RETURN_PROPERTY_VALUE,
2222
ERR_INVALID_RETURN_VALUE,
2323
} = require('internal/errors').codes;
24-
const { isURLInstance, URL } = require('internal/url');
24+
const { isURL, URL } = require('internal/url');
2525
const {
2626
isAnyArrayBuffer,
2727
isArrayBufferView,
@@ -263,7 +263,7 @@ class Hooks {
263263
if (
264264
!isMain &&
265265
typeof parentURL !== 'string' &&
266-
!isURLInstance(parentURL)
266+
!isURL(parentURL)
267267
) {
268268
throw new ERR_INVALID_ARG_TYPE(
269269
'parentURL',

lib/internal/url.js

+57-105
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,6 @@ const {
1515
ObjectGetOwnPropertySymbols,
1616
ObjectGetPrototypeOf,
1717
ObjectKeys,
18-
ObjectPrototypeHasOwnProperty,
1918
ReflectGetOwnPropertyDescriptor,
2019
ReflectOwnKeys,
2120
RegExpPrototypeSymbolReplace,
@@ -534,15 +533,27 @@ ObjectDefineProperties(URLSearchParams.prototype, {
534533
},
535534
});
536535

536+
/**
537+
* Checks if a value has the shape of a WHATWG URL object.
538+
*
539+
* Using a symbol or instanceof would not be able to recognize URL objects
540+
* coming from other implementations (e.g. in Electron), so instead we are
541+
* checking some well known properties for a lack of a better test.
542+
*
543+
* @param {*} self
544+
* @returns {self is URL}
545+
*/
537546
function isURL(self) {
538-
return self != null && ObjectPrototypeHasOwnProperty(self, context);
547+
return self != null && self.href && self.origin;
539548
}
540549

541550
class URL {
551+
#context = new URLContext();
552+
#searchParams;
553+
542554
constructor(input, base = undefined) {
543555
// toUSVString is not needed.
544556
input = `${input}`;
545-
this[context] = new URLContext();
546557

547558
if (base !== undefined) {
548559
base = `${base}`;
@@ -558,11 +569,6 @@ class URL {
558569
}
559570

560571
[inspect.custom](depth, opts) {
561-
if (this == null ||
562-
ObjectGetPrototypeOf(this[context]) !== URLContext.prototype) {
563-
throw new ERR_INVALID_THIS('URL');
564-
}
565-
566572
if (typeof depth === 'number' && depth < 0)
567573
return this;
568574

@@ -583,182 +589,133 @@ class URL {
583589
obj.hash = this.hash;
584590

585591
if (opts.showHidden) {
586-
obj[context] = this[context];
592+
obj[context] = this.#context;
587593
}
588594

589595
return `${constructor.name} ${inspect(obj, opts)}`;
590596
}
591597

592598
#onParseComplete = (href, origin, protocol, hostname, pathname,
593599
search, username, password, port, hash) => {
594-
const ctx = this[context];
595-
ctx.href = href;
596-
ctx.origin = origin;
597-
ctx.protocol = protocol;
598-
ctx.hostname = hostname;
599-
ctx.pathname = pathname;
600-
ctx.search = search;
601-
ctx.username = username;
602-
ctx.password = password;
603-
ctx.port = port;
604-
ctx.hash = hash;
605-
if (this[searchParams]) {
606-
this[searchParams][searchParams] = parseParams(search);
600+
this.#context.href = href;
601+
this.#context.origin = origin;
602+
this.#context.protocol = protocol;
603+
this.#context.hostname = hostname;
604+
this.#context.pathname = pathname;
605+
this.#context.search = search;
606+
this.#context.username = username;
607+
this.#context.password = password;
608+
this.#context.port = port;
609+
this.#context.hash = hash;
610+
if (this.#searchParams) {
611+
this.#searchParams[searchParams] = parseParams(search);
607612
}
608613
};
609614

610615
toString() {
611-
if (!isURL(this))
612-
throw new ERR_INVALID_THIS('URL');
613-
return this[context].href;
616+
return this.#context.href;
614617
}
615618

616619
get href() {
617-
if (!isURL(this))
618-
throw new ERR_INVALID_THIS('URL');
619-
return this[context].href;
620+
return this.#context.href;
620621
}
621622

622623
set href(value) {
623-
if (!isURL(this))
624-
throw new ERR_INVALID_THIS('URL');
625-
const valid = updateUrl(this[context].href, updateActions.kHref, `${value}`, this.#onParseComplete);
624+
const valid = updateUrl(this.#context.href, updateActions.kHref, `${value}`, this.#onParseComplete);
626625
if (!valid) { throw ERR_INVALID_URL(`${value}`); }
627626
}
628627

629628
// readonly
630629
get origin() {
631-
if (!isURL(this))
632-
throw new ERR_INVALID_THIS('URL');
633-
return this[context].origin;
630+
return this.#context.origin;
634631
}
635632

636633
get protocol() {
637-
if (!isURL(this))
638-
throw new ERR_INVALID_THIS('URL');
639-
return this[context].protocol;
634+
return this.#context.protocol;
640635
}
641636

642637
set protocol(value) {
643-
if (!isURL(this))
644-
throw new ERR_INVALID_THIS('URL');
645-
updateUrl(this[context].href, updateActions.kProtocol, `${value}`, this.#onParseComplete);
638+
updateUrl(this.#context.href, updateActions.kProtocol, `${value}`, this.#onParseComplete);
646639
}
647640

648641
get username() {
649-
if (!isURL(this))
650-
throw new ERR_INVALID_THIS('URL');
651-
return this[context].username;
642+
return this.#context.username;
652643
}
653644

654645
set username(value) {
655-
if (!isURL(this))
656-
throw new ERR_INVALID_THIS('URL');
657-
updateUrl(this[context].href, updateActions.kUsername, `${value}`, this.#onParseComplete);
646+
updateUrl(this.#context.href, updateActions.kUsername, `${value}`, this.#onParseComplete);
658647
}
659648

660649
get password() {
661-
if (!isURL(this))
662-
throw new ERR_INVALID_THIS('URL');
663-
return this[context].password;
650+
return this.#context.password;
664651
}
665652

666653
set password(value) {
667-
if (!isURL(this))
668-
throw new ERR_INVALID_THIS('URL');
669-
updateUrl(this[context].href, updateActions.kPassword, `${value}`, this.#onParseComplete);
654+
updateUrl(this.#context.href, updateActions.kPassword, `${value}`, this.#onParseComplete);
670655
}
671656

672657
get host() {
673-
if (!isURL(this))
674-
throw new ERR_INVALID_THIS('URL');
675-
const port = this[context].port;
658+
const port = this.#context.port;
676659
const suffix = port.length > 0 ? `:${port}` : '';
677-
return this[context].hostname + suffix;
660+
return this.#context.hostname + suffix;
678661
}
679662

680663
set host(value) {
681-
if (!isURL(this))
682-
throw new ERR_INVALID_THIS('URL');
683-
updateUrl(this[context].href, updateActions.kHost, `${value}`, this.#onParseComplete);
664+
updateUrl(this.#context.href, updateActions.kHost, `${value}`, this.#onParseComplete);
684665
}
685666

686667
get hostname() {
687-
if (!isURL(this))
688-
throw new ERR_INVALID_THIS('URL');
689-
return this[context].hostname;
668+
return this.#context.hostname;
690669
}
691670

692671
set hostname(value) {
693-
if (!isURL(this))
694-
throw new ERR_INVALID_THIS('URL');
695-
updateUrl(this[context].href, updateActions.kHostname, `${value}`, this.#onParseComplete);
672+
updateUrl(this.#context.href, updateActions.kHostname, `${value}`, this.#onParseComplete);
696673
}
697674

698675
get port() {
699-
if (!isURL(this))
700-
throw new ERR_INVALID_THIS('URL');
701-
return this[context].port;
676+
return this.#context.port;
702677
}
703678

704679
set port(value) {
705-
if (!isURL(this))
706-
throw new ERR_INVALID_THIS('URL');
707-
updateUrl(this[context].href, updateActions.kPort, `${value}`, this.#onParseComplete);
680+
updateUrl(this.#context.href, updateActions.kPort, `${value}`, this.#onParseComplete);
708681
}
709682

710683
get pathname() {
711-
if (!isURL(this))
712-
throw new ERR_INVALID_THIS('URL');
713-
return this[context].pathname;
684+
return this.#context.pathname;
714685
}
715686

716687
set pathname(value) {
717-
if (!isURL(this))
718-
throw new ERR_INVALID_THIS('URL');
719-
updateUrl(this[context].href, updateActions.kPathname, `${value}`, this.#onParseComplete);
688+
updateUrl(this.#context.href, updateActions.kPathname, `${value}`, this.#onParseComplete);
720689
}
721690

722691
get search() {
723-
if (!isURL(this))
724-
throw new ERR_INVALID_THIS('URL');
725-
return this[context].search;
692+
return this.#context.search;
726693
}
727694

728695
set search(value) {
729-
if (!isURL(this))
730-
throw new ERR_INVALID_THIS('URL');
731-
updateUrl(this[context].href, updateActions.kSearch, toUSVString(value), this.#onParseComplete);
696+
updateUrl(this.#context.href, updateActions.kSearch, toUSVString(value), this.#onParseComplete);
732697
}
733698

734699
// readonly
735700
get searchParams() {
736-
if (!isURL(this))
737-
throw new ERR_INVALID_THIS('URL');
738701
// Create URLSearchParams on demand to greatly improve the URL performance.
739-
if (this[searchParams] == null) {
740-
this[searchParams] = new URLSearchParams(this[context].search);
741-
this[searchParams][context] = this;
702+
if (this.#searchParams == null) {
703+
this.#searchParams = new URLSearchParams(this.#context.search);
704+
this.#searchParams[context] = this;
742705
}
743-
return this[searchParams];
706+
return this.#searchParams;
744707
}
745708

746709
get hash() {
747-
if (!isURL(this))
748-
throw new ERR_INVALID_THIS('URL');
749-
return this[context].hash;
710+
return this.#context.hash;
750711
}
751712

752713
set hash(value) {
753-
if (!isURL(this))
754-
throw new ERR_INVALID_THIS('URL');
755-
updateUrl(this[context].href, updateActions.kHash, `${value}`, this.#onParseComplete);
714+
updateUrl(this.#context.href, updateActions.kHash, `${value}`, this.#onParseComplete);
756715
}
757716

758717
toJSON() {
759-
if (!isURL(this))
760-
throw new ERR_INVALID_THIS('URL');
761-
return this[context].href;
718+
return this.#context.href;
762719
}
763720

764721
static createObjectURL(obj) {
@@ -1206,7 +1163,7 @@ function getPathFromURLPosix(url) {
12061163
function fileURLToPath(path) {
12071164
if (typeof path === 'string')
12081165
path = new URL(path);
1209-
else if (!isURLInstance(path))
1166+
else if (!isURL(path))
12101167
throw new ERR_INVALID_ARG_TYPE('path', ['string', 'URL'], path);
12111168
if (path.protocol !== 'file:')
12121169
throw new ERR_INVALID_URL_SCHEME('file');
@@ -1282,12 +1239,8 @@ function pathToFileURL(filepath) {
12821239
return outURL;
12831240
}
12841241

1285-
function isURLInstance(fileURLOrPath) {
1286-
return fileURLOrPath != null && fileURLOrPath.href && fileURLOrPath.origin;
1287-
}
1288-
12891242
function toPathIfFileURL(fileURLOrPath) {
1290-
if (!isURLInstance(fileURLOrPath))
1243+
if (!isURL(fileURLOrPath))
12911244
return fileURLOrPath;
12921245
return fileURLToPath(fileURLOrPath);
12931246
}
@@ -1297,7 +1250,6 @@ module.exports = {
12971250
fileURLToPath,
12981251
pathToFileURL,
12991252
toPathIfFileURL,
1300-
isURLInstance,
13011253
URL,
13021254
URLSearchParams,
13031255
domainToASCII,

lib/internal/worker.js

+3-3
Original file line numberDiff line numberDiff line change
@@ -55,7 +55,7 @@ const {
5555
WritableWorkerStdio,
5656
} = workerIo;
5757
const { deserializeError } = require('internal/error_serdes');
58-
const { fileURLToPath, isURLInstance, pathToFileURL } = require('internal/url');
58+
const { fileURLToPath, isURL, pathToFileURL } = require('internal/url');
5959
const { kEmptyObject } = require('internal/util');
6060
const { validateArray } = require('internal/validators');
6161

@@ -148,13 +148,13 @@ class Worker extends EventEmitter {
148148
}
149149
url = null;
150150
doEval = 'classic';
151-
} else if (isURLInstance(filename) && filename.protocol === 'data:') {
151+
} else if (isURL(filename) && filename.protocol === 'data:') {
152152
url = null;
153153
doEval = 'module';
154154
filename = `import ${JSONStringify(`${filename}`)}`;
155155
} else {
156156
doEval = false;
157-
if (isURLInstance(filename)) {
157+
if (isURL(filename)) {
158158
url = filename;
159159
filename = fileURLToPath(filename);
160160
} else if (typeof filename !== 'string') {

test/parallel/test-whatwg-url-custom-inspect.js

+1-1
Original file line numberDiff line numberDiff line change
@@ -61,7 +61,7 @@ assert.strictEqual(
6161

6262
assert.strictEqual(
6363
util.inspect({ a: url }, { depth: 0 }),
64-
'{ a: [URL] }');
64+
'{ a: URL {} }');
6565

6666
class MyURL extends URL {}
6767
assert(util.inspect(new MyURL(url.href)).startsWith('MyURL {'));

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