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author | 2020-11-16 00:10:28 +0100 | |
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committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/es-abstract/2017/CreateDataProperty.js | |
download | website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.gz website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.bz2 website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.zip |
api, login, auth
Diffstat (limited to 'node_modules/es-abstract/2017/CreateDataProperty.js')
-rw-r--r-- | node_modules/es-abstract/2017/CreateDataProperty.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2017/CreateDataProperty.js b/node_modules/es-abstract/2017/CreateDataProperty.js new file mode 100644 index 0000000..32a86ef --- /dev/null +++ b/node_modules/es-abstract/2017/CreateDataProperty.js @@ -0,0 +1,45 @@ +'use strict'; + +var GetIntrinsic = require('../GetIntrinsic'); + +var $TypeError = GetIntrinsic('%TypeError%'); + +var DefineOwnProperty = require('../helpers/DefineOwnProperty'); + +var FromPropertyDescriptor = require('./FromPropertyDescriptor'); +var OrdinaryGetOwnProperty = require('./OrdinaryGetOwnProperty'); +var IsDataDescriptor = require('./IsDataDescriptor'); +var IsExtensible = require('./IsExtensible'); +var IsPropertyKey = require('./IsPropertyKey'); +var SameValue = require('./SameValue'); +var Type = require('./Type'); + +// https://www.ecma-international.org/ecma-262/6.0/#sec-createdataproperty + +module.exports = function CreateDataProperty(O, P, V) { + if (Type(O) !== 'Object') { + throw new $TypeError('Assertion failed: Type(O) is not Object'); + } + if (!IsPropertyKey(P)) { + throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true'); + } + var oldDesc = OrdinaryGetOwnProperty(O, P); + var extensible = !oldDesc || IsExtensible(O); + var immutable = oldDesc && (!oldDesc['[[Writable]]'] || !oldDesc['[[Configurable]]']); + if (immutable || !extensible) { + return false; + } + return DefineOwnProperty( + IsDataDescriptor, + SameValue, + FromPropertyDescriptor, + O, + P, + { + '[[Configurable]]': true, + '[[Enumerable]]': true, + '[[Value]]': V, + '[[Writable]]': true + } + ); +}; |