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17 lines
796 B
JavaScript
17 lines
796 B
JavaScript
var metadata = require('./_metadata')
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, anObject = require('./_an-object')
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, getPrototypeOf = require('./_object-gpo')
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, ordinaryHasOwnMetadata = metadata.has
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, ordinaryGetOwnMetadata = metadata.get
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, toMetaKey = metadata.key;
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var ordinaryGetMetadata = function(MetadataKey, O, P){
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var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);
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if(hasOwn)return ordinaryGetOwnMetadata(MetadataKey, O, P);
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var parent = getPrototypeOf(O);
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return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined;
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};
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metadata.exp({getMetadata: function getMetadata(metadataKey, target /*, targetKey */){
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return ordinaryGetMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));
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}}); |