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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import { DEV } from 'esm-env';
import { define_property, is_array, is_frozen, object_freeze } from '../shared/utils.js';
import { STATE_FROZEN_SYMBOL, STATE_SYMBOL } from './constants.js';
import * as e from './errors.js';
/**
* Expects a value that was wrapped with `freeze` and makes it frozen in DEV.
* @template T
* @param {T} value
* @returns {Readonly<T>}
*/
export function freeze(value) {
if (
typeof value === 'object' &&
value !== null &&
!is_frozen(value) &&
!(STATE_FROZEN_SYMBOL in value)
) {
var copy = /** @type {T} */ (value);
if (STATE_SYMBOL in value) {
e.state_frozen_invalid_argument();
}
define_property(copy, STATE_FROZEN_SYMBOL, {
value: true,
writable: true,
enumerable: false
});
// Freeze the object in DEV
if (DEV) {
object_freeze(copy);
}
return /** @type {Readonly<T>} */ (copy);
}
return value;
}
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