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