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21 lines
963 B
21 lines
963 B
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 toMetadataKey = ReflectMetadataModule.toKey; |
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var getOrCreateMetadataMap = ReflectMetadataModule.getMap; |
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var store = ReflectMetadataModule.store; |
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// `Reflect.deleteMetadata` method |
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// https://github.com/rbuckton/reflect-metadata |
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$({ target: 'Reflect', stat: true }, { |
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deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) { |
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var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]); |
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var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false); |
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if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false; |
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if (metadataMap.size) return true; |
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var targetMetadata = store.get(target); |
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targetMetadata['delete'](targetKey); |
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return !!targetMetadata.size || store['delete'](target); |
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} |
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});
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