Spaces:
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Sleeping
; | |
var hasPropertyDescriptors = require('has-property-descriptors')(); | |
var GetIntrinsic = require('get-intrinsic'); | |
var $defineProperty = hasPropertyDescriptors && GetIntrinsic('%Object.defineProperty%', true); | |
if ($defineProperty) { | |
try { | |
$defineProperty({}, 'a', { value: 1 }); | |
} catch (e) { | |
// IE 8 has a broken defineProperty | |
$defineProperty = false; | |
} | |
} | |
var $SyntaxError = GetIntrinsic('%SyntaxError%'); | |
var $TypeError = GetIntrinsic('%TypeError%'); | |
var gopd = require('gopd'); | |
/** @type {(obj: Record<PropertyKey, unknown>, property: PropertyKey, value: unknown, nonEnumerable?: boolean | null, nonWritable?: boolean | null, nonConfigurable?: boolean | null, loose?: boolean) => void} */ | |
module.exports = function defineDataProperty( | |
obj, | |
property, | |
value | |
) { | |
if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) { | |
throw new $TypeError('`obj` must be an object or a function`'); | |
} | |
if (typeof property !== 'string' && typeof property !== 'symbol') { | |
throw new $TypeError('`property` must be a string or a symbol`'); | |
} | |
if (arguments.length > 3 && typeof arguments[3] !== 'boolean' && arguments[3] !== null) { | |
throw new $TypeError('`nonEnumerable`, if provided, must be a boolean or null'); | |
} | |
if (arguments.length > 4 && typeof arguments[4] !== 'boolean' && arguments[4] !== null) { | |
throw new $TypeError('`nonWritable`, if provided, must be a boolean or null'); | |
} | |
if (arguments.length > 5 && typeof arguments[5] !== 'boolean' && arguments[5] !== null) { | |
throw new $TypeError('`nonConfigurable`, if provided, must be a boolean or null'); | |
} | |
if (arguments.length > 6 && typeof arguments[6] !== 'boolean') { | |
throw new $TypeError('`loose`, if provided, must be a boolean'); | |
} | |
var nonEnumerable = arguments.length > 3 ? arguments[3] : null; | |
var nonWritable = arguments.length > 4 ? arguments[4] : null; | |
var nonConfigurable = arguments.length > 5 ? arguments[5] : null; | |
var loose = arguments.length > 6 ? arguments[6] : false; | |
/* @type {false | TypedPropertyDescriptor<unknown>} */ | |
var desc = !!gopd && gopd(obj, property); | |
if ($defineProperty) { | |
$defineProperty(obj, property, { | |
configurable: nonConfigurable === null && desc ? desc.configurable : !nonConfigurable, | |
enumerable: nonEnumerable === null && desc ? desc.enumerable : !nonEnumerable, | |
value: value, | |
writable: nonWritable === null && desc ? desc.writable : !nonWritable | |
}); | |
} else if (loose || (!nonEnumerable && !nonWritable && !nonConfigurable)) { | |
// must fall back to [[Set]], and was not explicitly asked to make non-enumerable, non-writable, or non-configurable | |
obj[property] = value; // eslint-disable-line no-param-reassign | |
} else { | |
throw new $SyntaxError('This environment does not support defining a property as non-configurable, non-writable, or non-enumerable.'); | |
} | |
}; | |