flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
'use strict';
|
|
|
|
var $gOPD = require('gopd');
|
|
var $TypeError = require('es-errors/type');
|
|
|
|
var every = require('../helpers/every');
|
|
var OwnPropertyKeys = require('own-keys');
|
|
var isObject = require('es-object-atoms/isObject');
|
|
|
|
var IsDataDescriptor = require('./IsDataDescriptor');
|
|
var IsExtensible = require('./IsExtensible');
|
|
var ToPropertyDescriptor = require('./ToPropertyDescriptor');
|
|
|
|
// https://262.ecma-international.org/6.0/#sec-testintegritylevel
|
|
|
|
module.exports = function TestIntegrityLevel(O, level) {
|
|
if (!isObject(O)) {
|
|
throw new $TypeError('Assertion failed: Type(O) is not Object');
|
|
}
|
|
if (level !== 'sealed' && level !== 'frozen') {
|
|
throw new $TypeError('Assertion failed: `level` must be `"sealed"` or `"frozen"`');
|
|
}
|
|
var status = IsExtensible(O);
|
|
if (status || !$gOPD) {
|
|
return false;
|
|
}
|
|
var theKeys = OwnPropertyKeys(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;
|
|
});
|
|
};
|