mirror of
https://github.com/musix-org/musix-oss
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22 lines
963 B
JavaScript
22 lines
963 B
JavaScript
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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