jiangping
2025-04-21 561a8559ba10c7af2a6100d5a2700af7a72a3eba
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'use strict';
var wellKnownSymbol = require('../internals/well-known-symbol');
var defineProperty = require('../internals/object-define-property').f;
 
var METADATA = wellKnownSymbol('metadata');
var FunctionPrototype = Function.prototype;
 
// Function.prototype[@@metadata]
// https://github.com/tc39/proposal-decorator-metadata
if (FunctionPrototype[METADATA] === undefined) {
  defineProperty(FunctionPrototype, METADATA, {
    value: null
  });
}