npm
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a package manager for JavaScript
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MAX_NESTING_DEPTH = void 0;
exports.default = resolveMaxNestingDepth;
/**
* The default maximum selector nesting depth allowed when parsing or
* serializing a selector. Going beyond this would otherwise recurse deeply
* enough to overflow the call stack (CVE-2026-9358 / CWE-674). Real-world
* selectors never get anywhere near this, so it acts purely as a safety net
* that turns an uncatchable stack overflow into a catchable error.
*/
exports.MAX_NESTING_DEPTH = 256;
/**
* Coerce a user-supplied nesting-depth limit into a safe value. Anything that
* is not a non-negative safe integer (NaN, Infinity, negative numbers, or a
* non-number) would disable or break the guard, so it falls back to the
* default.
*
* @param {unknown} value the limit provided through the `maxNestingDepth` option
* @returns {number} a safe, non-negative integer limit
*/
function resolveMaxNestingDepth(value) {
return Number.isSafeInteger(value) && value >= 0 ? value : exports.MAX_NESTING_DEPTH;
}
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