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25 lines
1.1 KiB
25 lines
1.1 KiB
// TODO: Remove from `core-js@4` |
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var $ = require('../internals/export'); |
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var ReflectMetadataModule = require('../internals/reflect-metadata'); |
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var anObject = require('../internals/an-object'); |
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var getPrototypeOf = require('../internals/object-get-prototype-of'); |
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var ordinaryHasOwnMetadata = ReflectMetadataModule.has; |
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var ordinaryGetOwnMetadata = ReflectMetadataModule.get; |
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var toMetadataKey = ReflectMetadataModule.toKey; |
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var ordinaryGetMetadata = function (MetadataKey, O, P) { |
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var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P); |
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if (hasOwn) return ordinaryGetOwnMetadata(MetadataKey, O, P); |
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var parent = getPrototypeOf(O); |
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return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined; |
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}; |
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// `Reflect.getMetadata` method |
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// https://github.com/rbuckton/reflect-metadata |
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$({ target: 'Reflect', stat: true }, { |
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getMetadata: function getMetadata(metadataKey, target /* , targetKey */) { |
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var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]); |
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return ordinaryGetMetadata(metadataKey, anObject(target), targetKey); |
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} |
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});
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