Sha256: e03d64d85e20fdb7ea71af054352251382838f6afa35c00c742533ba0865d722
Contents?: true
Size: 1.84 KB
Versions: 36
Compression:
Stored size: 1.84 KB
Contents
// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`
var Map = require('../modules/es.map');
var WeakMap = require('../modules/es.weak-map');
var shared = require('../internals/shared');
var metadata = shared('metadata');
var store = metadata.store || (metadata.store = new WeakMap());
var getOrCreateMetadataMap = function (target, targetKey, create) {
var targetMetadata = store.get(target);
if (!targetMetadata) {
if (!create) return;
store.set(target, targetMetadata = new Map());
}
var keyMetadata = targetMetadata.get(targetKey);
if (!keyMetadata) {
if (!create) return;
targetMetadata.set(targetKey, keyMetadata = new Map());
} return keyMetadata;
};
var ordinaryHasOwnMetadata = function (MetadataKey, O, P) {
var metadataMap = getOrCreateMetadataMap(O, P, false);
return metadataMap === undefined ? false : metadataMap.has(MetadataKey);
};
var ordinaryGetOwnMetadata = function (MetadataKey, O, P) {
var metadataMap = getOrCreateMetadataMap(O, P, false);
return metadataMap === undefined ? undefined : metadataMap.get(MetadataKey);
};
var ordinaryDefineOwnMetadata = function (MetadataKey, MetadataValue, O, P) {
getOrCreateMetadataMap(O, P, true).set(MetadataKey, MetadataValue);
};
var ordinaryOwnMetadataKeys = function (target, targetKey) {
var metadataMap = getOrCreateMetadataMap(target, targetKey, false);
var keys = [];
if (metadataMap) metadataMap.forEach(function (_, key) { keys.push(key); });
return keys;
};
var toMetadataKey = function (it) {
return it === undefined || typeof it == 'symbol' ? it : String(it);
};
module.exports = {
store: store,
getMap: getOrCreateMetadataMap,
has: ordinaryHasOwnMetadata,
get: ordinaryGetOwnMetadata,
set: ordinaryDefineOwnMetadata,
keys: ordinaryOwnMetadataKeys,
toKey: toMetadataKey
};
Version data entries
36 entries across 35 versions & 9 rubygems