| 1 | ;
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| 2 | var wellKnownSymbol = require('../internals/well-known-symbol');
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| 3 | var defineProperty = require('../internals/object-define-property').f;
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| 4 |
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| 5 | var METADATA = wellKnownSymbol('metadata');
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| 6 | var FunctionPrototype = Function.prototype;
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| 7 |
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| 8 | // Function.prototype[@@metadata]
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| 9 | // https://github.com/tc39/proposal-decorator-metadata
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| 10 | if (FunctionPrototype[METADATA] === undefined) {
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| 11 | defineProperty(FunctionPrototype, METADATA, {
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| 12 | value: null
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| 13 | });
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| 14 | }
|