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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/core-js/library/modules/_metadata.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/core-js/library/modules/_metadata.js')
| -rw-r--r-- | node_modules/core-js/library/modules/_metadata.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/node_modules/core-js/library/modules/_metadata.js b/node_modules/core-js/library/modules/_metadata.js new file mode 100644 index 00000000..759cfc44 --- /dev/null +++ b/node_modules/core-js/library/modules/_metadata.js @@ -0,0 +1,51 @@ +var Map = require('./es6.map'); +var $export = require('./_export'); +var shared = require('./_shared')('metadata'); +var store = shared.store || (shared.store = new (require('./es6.weak-map'))()); + +var getOrCreateMetadataMap = function (target, targetKey, create) { + var targetMetadata = store.get(target); + if (!targetMetadata) { + if (!create) return undefined; + store.set(target, targetMetadata = new Map()); + } + var keyMetadata = targetMetadata.get(targetKey); + if (!keyMetadata) { + if (!create) return undefined; + 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 toMetaKey = function (it) { + return it === undefined || typeof it == 'symbol' ? it : String(it); +}; +var exp = function (O) { + $export($export.S, 'Reflect', O); +}; + +module.exports = { + store: store, + map: getOrCreateMetadataMap, + has: ordinaryHasOwnMetadata, + get: ordinaryGetOwnMetadata, + set: ordinaryDefineOwnMetadata, + keys: ordinaryOwnMetadataKeys, + key: toMetaKey, + exp: exp +}; |
