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