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index.js
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index.js
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// @ts-nocheck
'use strict';
const _ = require('lodash');
const declarationValueIndex = require('../../utils/declarationValueIndex');
const getUnitFromValueNode = require('../../utils/getUnitFromValueNode');
const matchesStringOrRegExp = require('../../utils/matchesStringOrRegExp');
const postcss = require('postcss');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const valueParser = require('postcss-value-parser');
const ruleName = 'declaration-property-unit-whitelist';
const messages = ruleMessages(ruleName, {
rejected: (property, unit) => `Unexpected unit "${unit}" for property "${property}"`,
});
function rule(list) {
return (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: list,
possible: [_.isObject],
});
if (!validOptions) {
return;
}
root.walkDecls((decl) => {
const prop = decl.prop;
const value = decl.value;
const unprefixedProp = postcss.vendor.unprefixed(prop);
const propList = _.find(list, (units, propIdentifier) =>
matchesStringOrRegExp(unprefixedProp, propIdentifier),
);
if (!propList) {
return;
}
valueParser(value).walk((node) => {
// Ignore wrong units within `url` function
if (node.type === 'function' && node.value.toLowerCase() === 'url') {
return false;
}
if (node.type === 'string') {
return;
}
const unit = getUnitFromValueNode(node);
if (!unit || (unit && propList.indexOf(unit.toLowerCase())) !== -1) {
return;
}
report({
message: messages.rejected(prop, unit),
node: decl,
index: declarationValueIndex(decl) + node.sourceIndex,
result,
ruleName,
});
});
});
};
}
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;