122 lines
2.7 KiB
JavaScript
122 lines
2.7 KiB
JavaScript
// @ts-nocheck
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'use strict';
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const _ = require('lodash');
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const eachDeclarationBlock = require('../../utils/eachDeclarationBlock');
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const isCustomProperty = require('../../utils/isCustomProperty');
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const isStandardSyntaxProperty = require('../../utils/isStandardSyntaxProperty');
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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 ruleName = 'declaration-block-no-duplicate-properties';
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const messages = ruleMessages(ruleName, {
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rejected: (property) => `Unexpected duplicate "${property}"`,
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});
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function rule(on, 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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{ actual: on },
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{
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actual: options,
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possible: {
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ignore: ['consecutive-duplicates', 'consecutive-duplicates-with-different-values'],
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ignoreProperties: [_.isString],
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},
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optional: true,
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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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eachDeclarationBlock(root, (eachDecl) => {
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const decls = [];
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const values = [];
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eachDecl((decl) => {
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const prop = decl.prop;
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const value = decl.value;
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if (!isStandardSyntaxProperty(prop)) {
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return;
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}
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if (isCustomProperty(prop)) {
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return;
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}
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// Return early if the property is to be ignored
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if (optionsMatches(options, 'ignoreProperties', prop)) {
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return;
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}
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// Ignore the src property as commonly duplicated in at-fontface
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if (prop.toLowerCase() === 'src') {
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return;
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}
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const indexDuplicate = decls.indexOf(prop.toLowerCase());
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if (indexDuplicate !== -1) {
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if (optionsMatches(options, 'ignore', 'consecutive-duplicates-with-different-values')) {
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// if duplicates are not consecutive
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if (indexDuplicate !== decls.length - 1) {
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report({
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message: messages.rejected(prop),
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node: decl,
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result,
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ruleName,
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});
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return;
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}
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// if values of consecutive duplicates are equal
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if (value === values[indexDuplicate]) {
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report({
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message: messages.rejected(value),
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node: decl,
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result,
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ruleName,
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});
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return;
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}
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return;
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}
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if (
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optionsMatches(options, 'ignore', 'consecutive-duplicates') &&
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indexDuplicate === decls.length - 1
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) {
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return;
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}
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report({
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message: messages.rejected(prop),
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node: decl,
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result,
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ruleName,
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});
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}
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decls.push(prop.toLowerCase());
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values.push(value.toLowerCase());
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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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