diff options
author | isaacs <i@izs.me> | 2020-07-23 20:58:04 +0300 |
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committer | isaacs <i@izs.me> | 2020-07-29 21:53:42 +0300 |
commit | ad5e07d8bd86d1dbe2b03dc142f8c8d6f4828ffe (patch) | |
tree | 97b66f97d77f35774f10a5e3e9957b1897d150bb /node_modules/es-abstract/2016/TestIntegrityLevel.js | |
parent | a16994cfdd2f255016f3d8ee60d03473d80eabd8 (diff) |
Full dependency reboot
Reinstall everything from a clean node_modules and package-lock.json
state.
Re-generate list of bundleDependencies and node_modules/.gitignore with
a script that does the right thing based on actual dependency state.
Diffstat (limited to 'node_modules/es-abstract/2016/TestIntegrityLevel.js')
-rw-r--r-- | node_modules/es-abstract/2016/TestIntegrityLevel.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2016/TestIntegrityLevel.js b/node_modules/es-abstract/2016/TestIntegrityLevel.js new file mode 100644 index 000000000..7a57397d5 --- /dev/null +++ b/node_modules/es-abstract/2016/TestIntegrityLevel.js @@ -0,0 +1,42 @@ +'use strict'; + +var GetIntrinsic = require('../GetIntrinsic'); + +var $gOPD = require('../helpers/getOwnPropertyDescriptor'); +var $gOPN = GetIntrinsic('%Object.getOwnPropertyNames%'); +var $TypeError = GetIntrinsic('%TypeError%'); + +var every = require('../helpers/every'); + +var IsDataDescriptor = require('./IsDataDescriptor'); +var IsExtensible = require('./IsExtensible'); +var ToPropertyDescriptor = require('./ToPropertyDescriptor'); +var Type = require('./Type'); + +// https://www.ecma-international.org/ecma-262/6.0/#sec-testintegritylevel + +module.exports = function TestIntegrityLevel(O, level) { + if (Type(O) !== 'Object') { + throw new $TypeError('Assertion failed: Type(O) is not Object'); + } + if (level !== 'sealed' && level !== 'frozen') { + throw new $TypeError('Assertion failed: `level` must be `"sealed"` or `"frozen"`'); + } + var status = IsExtensible(O); + if (status) { + return false; + } + var theKeys = $gOPN(O); + return theKeys.length === 0 || every(theKeys, function (k) { + var currentDesc = $gOPD(O, k); + if (typeof currentDesc !== 'undefined') { + if (currentDesc.configurable) { + return false; + } + if (level === 'frozen' && IsDataDescriptor(ToPropertyDescriptor(currentDesc)) && currentDesc.writable) { + return false; + } + } + return true; + }); +}; |