1 | var $ = require('../internals/export');
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2 | var ReflectMetadataModule = require('../internals/reflect-metadata');
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3 | var anObject = require('../internals/an-object');
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4 |
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5 | var toMetadataKey = ReflectMetadataModule.toKey;
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6 | var getOrCreateMetadataMap = ReflectMetadataModule.getMap;
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7 | var store = ReflectMetadataModule.store;
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8 |
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9 |
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10 |
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11 | $({ target: 'Reflect', stat: true }, {
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12 | deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) {
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13 | var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);
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14 | var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false);
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15 | if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false;
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16 | if (metadataMap.size) return true;
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17 | var targetMetadata = store.get(target);
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18 | targetMetadata['delete'](targetKey);
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19 | return !!targetMetadata.size || store['delete'](target);
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20 | }
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21 | });
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