shell bypass 403
module.exports = function calcAtRulePatternPriority(pattern, node) {
// 0 — it pattern doesn't match
// 1 — pattern without `name` and `hasBlock`
// 10010 — pattern match `hasBlock`
// 10100 — pattern match `name`
// 20110 — pattern match `name` and `hasBlock`
// 21100 — patter match `name` and `parameter`
// 31110 — patter match `name`, `parameter`, and `hasBlock`
let priority = 0;
// match `hasBlock`
if (pattern.hasOwnProperty('hasBlock') && node.hasBlock === pattern.hasBlock) {
priority += 10;
priority += 10000;
}
// match `name`
if (pattern.hasOwnProperty('name') && node.name === pattern.name) {
priority += 100;
priority += 10000;
}
// match `name`
if (pattern.hasOwnProperty('parameter') && pattern.parameter.test(node.parameter)) {
priority += 1100;
priority += 10000;
}
// doesn't have `name` and `hasBlock`
if (
!pattern.hasOwnProperty('hasBlock') &&
!pattern.hasOwnProperty('name') &&
!pattern.hasOwnProperty('paremeter')
) {
priority = 1;
}
// patter has `name` and `hasBlock`, but it doesn't match both properties
if (pattern.hasOwnProperty('hasBlock') && pattern.hasOwnProperty('name') && priority < 20000) {
priority = 0;
}
// patter has `name` and `parameter`, but it doesn't match both properties
if (pattern.hasOwnProperty('name') && pattern.hasOwnProperty('parameter') && priority < 21100) {
priority = 0;
}
// patter has `name`, `parameter`, and `hasBlock`, but it doesn't match all properties
if (
pattern.hasOwnProperty('name') &&
pattern.hasOwnProperty('parameter') &&
pattern.hasOwnProperty('hasBlock') &&
priority < 30000
) {
priority = 0;
}
return priority;
};