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authorlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:10:59 +0800
committerlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:41:44 +0800
commitfc87c009806dcc98867f6b58efe29b042aa01dee (patch)
tree8f59b3f4a5b66e9dfef2d40c8d318e258a521228 /node_modules/to-fast-properties/index.js
parent3336b2356ee6152d9c6ae59bd9b87ccbc0958407 (diff)
node: updatemain
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-'use strict';
-
-let fastProto = null;
-
-// Creates an object with permanently fast properties in V8. See Toon Verwaest's
-// post https://medium.com/@tverwaes/setting-up-prototypes-in-v8-ec9c9491dfe2#5f62
-// for more details. Use %HasFastProperties(object) and the Node.js flag
-// --allow-natives-syntax to check whether an object has fast properties.
-function FastObject(o) {
- // A prototype object will have "fast properties" enabled once it is checked
- // against the inline property cache of a function, e.g. fastProto.property:
- // https://github.com/v8/v8/blob/6.0.122/test/mjsunit/fast-prototype.js#L48-L63
- if (fastProto !== null && typeof fastProto.property) {
- const result = fastProto;
- fastProto = FastObject.prototype = null;
- return result;
- }
- fastProto = FastObject.prototype = o == null ? Object.create(null) : o;
- return new FastObject;
-}
-
-// Initialize the inline property cache of FastObject
-FastObject();
-
-module.exports = function toFastproperties(o) {
- return FastObject(o);
-};