You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

76 lines
2.3 KiB

/**
* @fileoverview Ensure proper position of the first property in JSX
* @author Joachim Seminck
*/
'use strict';
const docsUrl = require('../util/docsUrl');
const report = require('../util/report');
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
const messages = {
propOnNewLine: 'Property should be placed on a new line',
propOnSameLine: 'Property should be placed on the same line as the component declaration',
};
module.exports = {
meta: {
docs: {
description: 'Ensure proper position of the first property in JSX',
category: 'Stylistic Issues',
recommended: false,
url: docsUrl('jsx-first-prop-new-line'),
},
fixable: 'code',
messages,
schema: [{
enum: ['always', 'never', 'multiline', 'multiline-multiprop'],
}],
},
create(context) {
const configuration = context.options[0] || 'multiline-multiprop';
function isMultilineJSX(jsxNode) {
return jsxNode.loc.start.line < jsxNode.loc.end.line;
}
return {
JSXOpeningElement(node) {
if (
(configuration === 'multiline' && isMultilineJSX(node))
|| (configuration === 'multiline-multiprop' && isMultilineJSX(node) && node.attributes.length > 1)
|| (configuration === 'always')
) {
node.attributes.some((decl) => {
if (decl.loc.start.line === node.loc.start.line) {
report(context, messages.propOnNewLine, 'propOnNewLine', {
node: decl,
fix(fixer) {
return fixer.replaceTextRange([node.name.range[1], decl.range[0]], '\n');
},
});
}
return true;
});
} else if (configuration === 'never' && node.attributes.length > 0) {
const firstNode = node.attributes[0];
if (node.loc.start.line < firstNode.loc.start.line) {
report(context, messages.propOnSameLine, 'propOnSameLine', {
node: firstNode,
fix(fixer) {
return fixer.replaceTextRange([node.name.range[1], firstNode.range[0]], ' ');
},
});
}
}
},
};
},
};