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util: expose toUSVString
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Expose toUSVString to it can be used by user libraries.

Refs: nodejs/undici#986
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ronag committed Aug 19, 2021
1 parent 4832d1c commit f70adc5
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Showing 3 changed files with 26 additions and 15 deletions.
21 changes: 6 additions & 15 deletions lib/internal/url.js
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,6 @@ const {
ReflectApply,
ReflectGetOwnPropertyDescriptor,
ReflectOwnKeys,
RegExpPrototypeExec,
String,
StringPrototypeCharCodeAt,
StringPrototypeIncludes,
Expand All @@ -40,7 +39,12 @@ const {
isHexTable
} = require('internal/querystring');

const { getConstructorOf, removeColors } = require('internal/util');
const {
getConstructorOf,
removeColors,
toUSVString
} = require('internal/util');

const {
ERR_ARG_NOT_ITERABLE,
ERR_INVALID_ARG_TYPE,
Expand Down Expand Up @@ -79,7 +83,6 @@ const {
domainToASCII: _domainToASCII,
domainToUnicode: _domainToUnicode,
encodeAuth,
toUSVString: _toUSVString,
parse,
setURLConstructor,
URL_FLAGS_CANNOT_BE_BASE,
Expand Down Expand Up @@ -113,18 +116,6 @@ const IteratorPrototype = ObjectGetPrototypeOf(
ObjectGetPrototypeOf([][SymbolIterator]())
);

const unpairedSurrogateRe =
/(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])/;
function toUSVString(val) {
const str = `${val}`;
// As of V8 5.5, `str.search()` (and `unpairedSurrogateRe[@@search]()`) are
// slower than `unpairedSurrogateRe.exec()`.
const match = RegExpPrototypeExec(unpairedSurrogateRe, str);
if (!match)
return str;
return _toUSVString(str, match.index);
}

// Refs: https://html.spec.whatwg.org/multipage/browsers.html#concept-origin-opaque
const kOpaqueOrigin = 'null';

Expand Down
18 changes: 18 additions & 0 deletions lib/internal/util.js
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ const {
Promise,
ReflectApply,
ReflectConstruct,
RegExpPrototypeExec,
RegExpPrototypeTest,
SafeMap,
SafeSet,
Expand All @@ -27,6 +28,10 @@ const {
SymbolFor,
} = primordials;

const {
toUSVString: _toUSVString,
} = internalBinding('url');

const {
hideStackFrames,
codes: {
Expand All @@ -53,6 +58,18 @@ const experimentalWarnings = new SafeSet();

const colorRegExp = /\u001b\[\d\d?m/g; // eslint-disable-line no-control-regex

const unpairedSurrogateRe =
/(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])/;
function toUSVString(val) {
const str = `${val}`;
// As of V8 5.5, `str.search()` (and `unpairedSurrogateRe[@@search]()`) are
// slower than `unpairedSurrogateRe.exec()`.
const match = RegExpPrototypeExec(unpairedSurrogateRe, str);
if (!match)
return str;
return _toUSVString(str, match.index);
}

let uvBinding;

function lazyUv() {
Expand Down Expand Up @@ -487,6 +504,7 @@ module.exports = {
sleep,
spliceOne,
structuredClone,
toUSVString,
removeColors,

// Symbol used to customize promisify conversion
Expand Down
2 changes: 2 additions & 0 deletions test/parallel/test-util.js
Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,8 @@ assert.strictEqual(util.isFunction(function() {}), true);
assert.strictEqual(util.isFunction(), false);
assert.strictEqual(util.isFunction('string'), false);

assert.strictEqual(util.toUSVString('string'), 'string');

{
assert.strictEqual(util.types.isNativeError(new Error()), true);
assert.strictEqual(util.types.isNativeError(new TypeError()), true);
Expand Down

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