node_modules/core-js/library/modules/es7.reflect.metadata.js


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var metadata                  = require('./_metadata')
  , anObject                  = require('./_an-object')
  , aFunction                 = require('./_a-function')
  , toMetaKey                 = metadata.key
  , ordinaryDefineOwnMetadata = metadata.set;

metadata.exp({metadata: function metadata(metadataKey, metadataValue){
  return function decorator(target, targetKey){
    ordinaryDefineOwnMetadata(
      metadataKey, metadataValue,
      (targetKey !== undefined ? anObject : aFunction)(target),
      toMetaKey(targetKey)
    );
  };
}});