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2020-11-01 22:46:04 +00:00

159 lines
4.0 KiB
JavaScript

// @ts-nocheck
'use strict';
const _ = require('lodash');
const atRuleParamIndex = require('../../utils/atRuleParamIndex');
const declarationValueIndex = require('../../utils/declarationValueIndex');
const getUnitFromValueNode = require('../../utils/getUnitFromValueNode');
const isMap = require('../../utils/isMap');
const keywordSets = require('../../reference/keywordSets');
const mediaParser = require('postcss-media-query-parser').default;
const optionsMatches = require('../../utils/optionsMatches');
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 = 'unit-no-unknown';
const messages = ruleMessages(ruleName, {
rejected: (unit) => `Unexpected unknown unit "${unit}"`,
});
// The map property name (in map cleared from comments and spaces) always
// has index that being divided by 4 gives remainder equals 0
const mapPropertyNameIndexOffset = 4;
function rule(actual, options) {
return (root, result) => {
const validOptions = validateOptions(
result,
ruleName,
{ actual },
{
actual: options,
possible: {
ignoreUnits: [_.isString, _.isRegExp],
ignoreFunctions: [_.isString, _.isRegExp],
},
optional: true,
},
);
if (!validOptions) {
return;
}
function check(node, value, getIndex) {
// make sure multiplication operations (*) are divided - not handled
// by postcss-value-parser
value = value.replace(/\*/g, ',');
const parsedValue = valueParser(value);
const ignoredMapProperties = [];
parsedValue.walk((valueNode) => {
// Ignore wrong units within `url` function
// and within functions listed in the `ignoreFunctions` option
if (
valueNode.type === 'function' &&
(valueNode.value.toLowerCase() === 'url' ||
optionsMatches(options, 'ignoreFunctions', valueNode.value))
) {
return false;
}
if (isMap(valueNode)) {
valueNode.nodes.forEach((node, index) => {
if (!(index % mapPropertyNameIndexOffset)) {
ignoredMapProperties.push(node.sourceIndex);
}
});
}
if (ignoredMapProperties.includes(valueNode.sourceIndex)) {
return;
}
const unit = getUnitFromValueNode(valueNode);
if (!unit) {
return;
}
if (optionsMatches(options, 'ignoreUnits', unit)) {
return;
}
if (keywordSets.units.has(unit.toLowerCase()) && unit.toLowerCase() !== 'x') {
return;
}
if (unit.toLowerCase() === 'x') {
if (
node.type === 'atrule' &&
node.name === 'media' &&
node.params.toLowerCase().includes('resolution')
) {
let ignoreUnit = false;
mediaParser(node.params).walk((mediaNode, i, mediaNodes) => {
if (
mediaNode.value.toLowerCase().includes('resolution') &&
_.last(mediaNodes).sourceIndex === valueNode.sourceIndex
) {
ignoreUnit = true;
return false;
}
});
if (ignoreUnit) {
return;
}
}
if (node.type === 'decl') {
if (node.prop.toLowerCase() === 'image-resolution') {
return;
}
if (/^(?:-webkit-)?image-set[\s(]/i.test(value)) {
const imageSet = parsedValue.nodes.find(
(node) => postcss.vendor.unprefixed(node.value) === 'image-set',
);
const imageSetValueLastIndex = _.last(imageSet.nodes).sourceIndex;
if (imageSetValueLastIndex >= valueNode.sourceIndex) {
return;
}
}
}
}
report({
index: getIndex(node) + valueNode.sourceIndex,
message: messages.rejected(unit),
node,
result,
ruleName,
});
});
}
root.walkAtRules((atRule) => {
if (!/^media$/i.test(atRule.name) && !atRule.variable) {
return;
}
check(atRule, atRule.params, atRuleParamIndex);
});
root.walkDecls((decl) => check(decl, decl.value, declarationValueIndex));
};
}
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;