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101 lines
2.3 KiB
101 lines
2.3 KiB
// @ts-nocheck |
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'use strict'; |
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const atRuleParamIndex = require('../../utils/atRuleParamIndex'); |
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const declarationValueIndex = require('../../utils/declarationValueIndex'); |
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const getUnitFromValueNode = require('../../utils/getUnitFromValueNode'); |
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const optionsMatches = require('../../utils/optionsMatches'); |
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const report = require('../../utils/report'); |
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const ruleMessages = require('../../utils/ruleMessages'); |
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const validateOptions = require('../../utils/validateOptions'); |
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const _ = require('lodash'); |
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const valueParser = require('postcss-value-parser'); |
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const ruleName = 'number-max-precision'; |
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const messages = ruleMessages(ruleName, { |
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expected: (number, precision) => `Expected "${number}" to be "${number.toFixed(precision)}"`, |
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}); |
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function rule(precision, options) { |
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return (root, result) => { |
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const validOptions = validateOptions( |
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result, |
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ruleName, |
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{ |
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actual: precision, |
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possible: [_.isNumber], |
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}, |
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{ |
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optional: true, |
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actual: options, |
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possible: { |
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ignoreUnits: [_.isString, _.isRegExp], |
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}, |
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}, |
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); |
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if (!validOptions) { |
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return; |
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} |
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root.walkAtRules((atRule) => { |
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if (atRule.name.toLowerCase() === 'import') { |
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return; |
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} |
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check(atRule, atRule.params, atRuleParamIndex); |
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}); |
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root.walkDecls((decl) => check(decl, decl.value, declarationValueIndex)); |
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function check(node, value, getIndex) { |
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// Get out quickly if there are no periods |
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if (!value.includes('.')) { |
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return; |
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} |
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valueParser(value).walk((valueNode) => { |
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const unit = getUnitFromValueNode(valueNode); |
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if (optionsMatches(options, 'ignoreUnits', unit)) { |
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return; |
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} |
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// Ignore `url` function |
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if (valueNode.type === 'function' && valueNode.value.toLowerCase() === 'url') { |
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return false; |
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} |
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// Ignore strings, comments, etc |
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if (valueNode.type !== 'word') { |
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return; |
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} |
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const match = /\d*\.(\d+)/.exec(valueNode.value); |
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if (match === null) { |
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return; |
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} |
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if (match[1].length <= precision) { |
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return; |
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} |
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report({ |
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result, |
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ruleName, |
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node, |
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index: getIndex(node) + valueNode.sourceIndex + match.index, |
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message: messages.expected(Number.parseFloat(match[0]), precision), |
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}); |
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}); |
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} |
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}; |
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} |
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rule.ruleName = ruleName; |
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rule.messages = messages; |
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module.exports = rule;
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