74 lines
1.9 KiB
Plaintext
74 lines
1.9 KiB
Plaintext
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/**
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* @fileoverview Validate closing tag location in JSX
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* @author Ross Solomon
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*/
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'use strict';
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const astUtil = require('../util/ast');
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const docsUrl = require('../util/docsUrl');
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const report = require('../util/report');
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// ------------------------------------------------------------------------------
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// Rule Definition
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// ------------------------------------------------------------------------------
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const messages = {
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onOwnLine: 'Closing tag of a multiline JSX expression must be on its own line.',
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matchIndent: 'Expected closing tag to match indentation of opening.',
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};
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module.exports = {
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meta: {
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docs: {
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description: 'Enforce closing tag location for multiline JSX',
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category: 'Stylistic Issues',
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recommended: false,
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url: docsUrl('jsx-closing-tag-location'),
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},
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fixable: 'whitespace',
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messages,
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},
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create(context) {
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function handleClosingElement(node) {
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if (!node.parent) {
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return;
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}
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const opening = node.parent.openingElement || node.parent.openingFragment;
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if (opening.loc.start.line === node.loc.start.line) {
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return;
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}
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if (opening.loc.start.column === node.loc.start.column) {
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return;
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}
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const messageId = astUtil.isNodeFirstInLine(context, node)
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? 'matchIndent'
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: 'onOwnLine';
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report(context, messages[messageId], messageId, {
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node,
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loc: node.loc,
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fix(fixer) {
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const indent = Array(opening.loc.start.column + 1).join(' ');
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if (astUtil.isNodeFirstInLine(context, node)) {
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return fixer.replaceTextRange(
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[node.range[0] - node.loc.start.column, node.range[0]],
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indent
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);
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}
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return fixer.insertTextBefore(node, `\n${indent}`);
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},
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});
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}
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return {
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JSXClosingElement: handleClosingElement,
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JSXClosingFragment: handleClosingElement,
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};
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},
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};
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