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lib: make lazyDOMException more common #39105

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lib: make lazyDOMException more common #39105

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31e6783
lib: make lazyDOMException more common
XadillaX Jun 21, 2021
fd00900
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XadillaX Jun 21, 2021
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13 changes: 3 additions & 10 deletions lib/buffer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,7 @@ const {
const {
customInspectSymbol,
isInsideNodeModules,
lazyDOMException,
normalizeEncoding,
kIsEncodingSymbol
} = require('internal/util');
Expand Down Expand Up @@ -1208,22 +1209,14 @@ if (internalBinding('config').hasIntl) {
};
}

let DOMException;

const lazyInvalidCharError = hideStackFrames((message, name) => {
if (DOMException === undefined)
DOMException = internalBinding('messaging').DOMException;
throw new DOMException('Invalid character', 'InvalidCharacterError');
});

function btoa(input) {
// The implementation here has not been performance optimized in any way and
// should not be.
// Refs: https://github.com/nodejs/node/pull/38433#issuecomment-828426932
input = `${input}`;
for (let n = 0; n < input.length; n++) {
if (input[n].charCodeAt(0) > 0xff)
lazyInvalidCharError();
throw lazyDOMException('Invalid character', 'InvalidCharacterError');
}
const buf = Buffer.from(input, 'latin1');
return buf.toString('base64');
Expand All @@ -1239,7 +1232,7 @@ function atob(input) {
input = `${input}`;
for (let n = 0; n < input.length; n++) {
if (!kBase64Digits.includes(input[n]))
lazyInvalidCharError();
throw lazyDOMException('Invalid character', 'InvalidCharacterError');
}
return Buffer.from(input, 'base64').toString('latin1');
}
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/aes.js
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,6 @@ const {
getArrayBufferOrView,
hasAnyNotIn,
jobPromise,
lazyDOMException,
validateByteLength,
validateKeyOps,
validateMaxBufferLength,
Expand All @@ -45,6 +44,10 @@ const {
kKeyObject,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

const { PromiseReject } = primordials;

const {
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/diffiehellman.js
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Expand Up @@ -47,6 +47,10 @@ const {
isAnyArrayBuffer,
} = require('internal/util/types');

const {
lazyDOMException,
} = require('internal/util');

const {
KeyObject,
InternalCryptoKey,
Expand All @@ -66,7 +70,6 @@ const {
getUsagesUnion,
hasAnyNotIn,
jobPromise,
lazyDOMException,
toBuf,
kHandle,
kKeyObject,
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/dsa.js
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Original file line number Diff line number Diff line change
Expand Up @@ -44,13 +44,16 @@ const {
getUsagesUnion,
hasAnyNotIn,
jobPromise,
lazyDOMException,
normalizeHashName,
validateKeyOps,
kKeyObject,
kHandle,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

function verifyAcceptableDsaKeyUse(name, type, usages) {
let checkSet;
switch (type) {
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/ec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -38,14 +38,17 @@ const {
getUsagesUnion,
hasAnyNotIn,
jobPromise,
lazyDOMException,
normalizeHashName,
validateKeyOps,
kHandle,
kKeyObject,
kNamedCurveAliases,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

const {
generateKeyPair,
} = require('internal/crypto/keygen');
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/hkdf.js
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,6 @@ const { kMaxLength } = require('buffer');

const {
getArrayBufferOrView,
lazyDOMException,
normalizeHashName,
toBuf,
validateByteSource,
Expand All @@ -35,6 +34,10 @@ const {
isKeyObject,
} = require('internal/crypto/keys');

const {
lazyDOMException,
} = require('internal/util');

const {
isAnyArrayBuffer,
isArrayBufferView,
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/mac.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,14 +18,17 @@ const {
getHashLength,
hasAnyNotIn,
jobPromise,
lazyDOMException,
normalizeHashName,
validateBitLength,
validateKeyOps,
kHandle,
kKeyObject,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

const {
codes: {
ERR_MISSING_OPTION,
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/pbkdf2.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,11 +25,14 @@ const { ERR_MISSING_OPTION } = require('internal/errors').codes;
const {
getArrayBufferOrView,
getDefaultEncoding,
lazyDOMException,
normalizeHashName,
kKeyObject,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

function pbkdf2(password, salt, iterations, keylen, digest, callback) {
if (typeof digest === 'function') {
callback = digest;
Expand Down
2 changes: 1 addition & 1 deletion lib/internal/crypto/random.js
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ const {

const {
lazyDOMException,
} = require('internal/crypto/util');
} = require('internal/util');

const { Buffer, kMaxLength } = require('buffer');

Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/rsa.js
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Original file line number Diff line number Diff line change
Expand Up @@ -40,14 +40,17 @@ const {
getUsagesUnion,
hasAnyNotIn,
jobPromise,
lazyDOMException,
normalizeHashName,
validateKeyOps,
validateMaxBufferLength,
kHandle,
kKeyObject,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

const {
isUint8Array,
} = require('internal/util/types');
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/scrypt.js
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Original file line number Diff line number Diff line change
Expand Up @@ -30,10 +30,13 @@ const {
const {
getArrayBufferOrView,
getDefaultEncoding,
lazyDOMException,
kKeyObject,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

const defaults = {
N: 16384,
r: 8,
Expand Down
9 changes: 1 addition & 8 deletions lib/internal/crypto/util.js
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,7 @@ const { Buffer } = require('buffer');
const {
cachedResult,
filterDuplicateStrings,
lazyDOMException,
} = require('internal/util');

const {
Expand All @@ -70,13 +71,6 @@ function lazyRequire(name) {
return ret;
}

let DOMException;
const lazyDOMException = hideStackFrames((message, name) => {
if (DOMException === undefined)
DOMException = internalBinding('messaging').DOMException;
return new DOMException(message, name);
});

var defaultEncoding = 'buffer';

function setDefaultEncoding(val) {
Expand Down Expand Up @@ -428,7 +422,6 @@ module.exports = {
normalizeAlgorithm,
normalizeHashName,
hasAnyNotIn,
lazyDOMException,
validateBitLength,
validateByteLength,
validateByteSource,
Expand Down
5 changes: 4 additions & 1 deletion lib/internal/crypto/webcrypto.js
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,6 @@ const {
const {
getArrayBufferOrView,
hasAnyNotIn,
lazyDOMException,
lazyRequire,
normalizeAlgorithm,
normalizeHashName,
Expand All @@ -59,6 +58,10 @@ const {
kKeyObject,
} = require('internal/crypto/util');

const {
lazyDOMException,
} = require('internal/util');

const {
getRandomValues,
} = require('internal/crypto/random');
Expand Down
5 changes: 2 additions & 3 deletions lib/internal/fs/promises.js
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Expand Up @@ -76,7 +76,7 @@ const {
validateInteger,
} = require('internal/validators');
const pathModule = require('path');
const { promisify } = require('internal/util');
const { lazyDOMException, promisify } = require('internal/util');
const { EventEmitterMixin } = require('internal/event_target');
const { watch } = require('internal/fs/watchers');
const { isIterable } = require('internal/streams/utils');
Expand Down Expand Up @@ -211,8 +211,7 @@ class FileHandle extends EventEmitterMixin(JSTransferable) {

[kTransfer]() {
if (this[kClosePromise] || this[kRefs] > 1) {
const DOMException = internalBinding('messaging').DOMException;
throw new DOMException('Cannot transfer FileHandle while in use',
throw lazyDOMException('Cannot transfer FileHandle while in use',
'DataCloneError');
}

Expand Down
9 changes: 9 additions & 0 deletions lib/internal/util.js
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Expand Up @@ -28,6 +28,7 @@ const {
} = primordials;

const {
hideStackFrames,
codes: {
ERR_INVALID_ARG_TYPE,
ERR_NO_CRYPTO,
Expand Down Expand Up @@ -441,6 +442,13 @@ function createDeferredPromise() {
return { promise, resolve, reject };
}

let DOMException;
const lazyDOMException = hideStackFrames((message, name) => {
if (DOMException === undefined)
DOMException = internalBinding('messaging').DOMException;
Comment on lines +447 to +448
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Suggested change
if (DOMException === undefined)
DOMException = internalBinding('messaging').DOMException;
DOMException ??= internalBinding('messaging').DOMException;

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Why should we use ??=?

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@aduh95 aduh95 Jun 21, 2021 •
edited
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I find ??= more readable and concise than the if statement, feel free to disagree and/or disregard.

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I think it's good to hoist this out of the crypto util and make it more universal in the code base, but I am wondering, why do we want to make this lazy?

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Probably to avoid building the JS function until we're on the error path?

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@jasnell

return new DOMException(message, name);
});

module.exports = {
assertCrypto,
cachedResult,
Expand All @@ -457,6 +465,7 @@ module.exports = {
isError,
isInsideNodeModules,
join,
lazyDOMException,
normalizeEncoding,
once,
promisify,
Expand Down