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Remove helpers.deepFreeze and call Object.freeze only on things that need it for ~11% time reduction measured via profile-fixture.mjs on Apple Silicon M1.

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This commit is contained in:
David Anson 2022-06-09 23:56:44 -07:00
parent b6471fba31
commit 936c876810
5 changed files with 110 additions and 97 deletions
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22
helpers/helpers.js
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@ -1153,28 +1153,6 @@ function getNextChildToken(parentToken, childToken, nextType, nextNextType) {
}
module.exports.getNextChildToken = getNextChildToken;
/**
* Calls Object.freeze() on an object and its children.
*
* @param {Object} obj Object to deep freeze.
* @returns {Object} Object passed to the function.
*/
function deepFreeze(obj) {
const pending = [ obj ];
let current = null;
while ((current = pending.shift())) {
Object.freeze(current);
for (const name of Object.getOwnPropertyNames(current)) {
const value = current[name];
if (value && (typeof value === "object")) {
pending.push(value);
}
}
}
return obj;
}
module.exports.deepFreeze = deepFreeze;
/**
* Expands a path with a tilde to an absolute path.
*