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author | Minteck <contact@minteck.org> | 2022-08-21 17:31:56 +0200 |
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committer | Minteck <contact@minteck.org> | 2022-08-21 17:31:56 +0200 |
commit | a2df9a69dcc14cb70118cda2ded499055e7ee358 (patch) | |
tree | 6dd283e4e9452d38bce81ddaaae49b5335755842 /together/node_modules/has-symbols/shams.js | |
parent | 84dd0735820b16b60f600284d35183d76547a71f (diff) | |
download | pluralconnect-a2df9a69dcc14cb70118cda2ded499055e7ee358.tar.gz pluralconnect-a2df9a69dcc14cb70118cda2ded499055e7ee358.tar.bz2 pluralconnect-a2df9a69dcc14cb70118cda2ded499055e7ee358.zip |
m. update
Diffstat (limited to 'together/node_modules/has-symbols/shams.js')
-rw-r--r-- | together/node_modules/has-symbols/shams.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/together/node_modules/has-symbols/shams.js b/together/node_modules/has-symbols/shams.js new file mode 100644 index 0000000..1285210 --- /dev/null +++ b/together/node_modules/has-symbols/shams.js @@ -0,0 +1,42 @@ +'use strict'; + +/* eslint complexity: [2, 18], max-statements: [2, 33] */ +module.exports = function hasSymbols() { + if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; } + if (typeof Symbol.iterator === 'symbol') { return true; } + + var obj = {}; + var sym = Symbol('test'); + var symObj = Object(sym); + if (typeof sym === 'string') { return false; } + + if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; } + if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; } + + // temp disabled per https://github.com/ljharb/object.assign/issues/17 + // if (sym instanceof Symbol) { return false; } + // temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4 + // if (!(symObj instanceof Symbol)) { return false; } + + // if (typeof Symbol.prototype.toString !== 'function') { return false; } + // if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; } + + var symVal = 42; + obj[sym] = symVal; + for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop + if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; } + + if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; } + + var syms = Object.getOwnPropertySymbols(obj); + if (syms.length !== 1 || syms[0] !== sym) { return false; } + + if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; } + + if (typeof Object.getOwnPropertyDescriptor === 'function') { + var descriptor = Object.getOwnPropertyDescriptor(obj, sym); + if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; } + } + + return true; +}; |