ember-template-lint
Version:
Linter for Ember or Handlebars templates.
37 lines (31 loc) • 1.17 kB
JavaScript
;
const AstNodeInfo = require('../helpers/ast-node-info');
const Rule = require('./base');
const ERROR_MESSAGE = 'The `<html>` element must have the `lang` attribute with a non-null value';
module.exports = class RequireLangAttribute extends Rule {
visitor() {
return {
ElementNode(node) {
if (node.tag === 'html' && !AstNodeInfo.hasAttribute(node, 'lang')) {
this.log({
message: ERROR_MESSAGE,
line: node.loc && node.loc.start.line,
column: node.loc && node.loc.start.column,
source: this.sourceForNode(node),
});
}
const hasLangAttribute = AstNodeInfo.hasAttribute(node, 'lang');
const langAttributeValue = AstNodeInfo.elementAttributeValue(node, 'lang');
if (node.tag === 'html' && hasLangAttribute && !langAttributeValue) {
this.log({
message: ERROR_MESSAGE,
line: node.loc && node.loc.start.line,
column: node.loc && node.loc.start.column,
source: this.sourceForNode(node),
});
}
},
};
}
};
module.exports.ERROR_MESSAGE = ERROR_MESSAGE;