110 lines
3.1 KiB
Plaintext
110 lines
3.1 KiB
Plaintext
'use strict';
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var utils = require('../utils.js');
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require('eslint-visitor-keys');
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require('espree');
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require('estraverse');
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const messages = {
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noLineGap: "Expected no line gap between \u201C{{prop1}}\u201D and \u201C{{prop2}}\u201D",
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onlyOneSpace: "Expected only one space between \u201C{{prop1}}\u201D and \u201C{{prop2}}\u201D"
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};
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var jsxPropsNoMultiSpaces = utils.createRule({
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name: "jsx-props-no-multi-spaces",
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package: "jsx",
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meta: {
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type: "layout",
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docs: {
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description: "Disallow multiple spaces between inline JSX props"
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},
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fixable: "code",
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messages,
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schema: []
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},
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create(context) {
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const sourceCode = context.sourceCode;
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function getPropName(propNode) {
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switch (propNode.type) {
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case "JSXSpreadAttribute":
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return sourceCode.getText(propNode.argument);
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case "JSXIdentifier":
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return propNode.name;
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case "JSXMemberExpression":
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return `${getPropName(propNode.object)}.${propNode.property.name}`;
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default:
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return propNode.name ? propNode.name.name : `${sourceCode.getText(propNode.object)}.${propNode.property.name}`;
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}
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}
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function hasEmptyLines(first, second) {
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const comments = sourceCode.getCommentsBefore ? sourceCode.getCommentsBefore(second) : [];
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const nodes = [].concat(first, comments, second);
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for (let i = 1; i < nodes.length; i += 1) {
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const prev = nodes[i - 1];
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const curr = nodes[i];
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if (curr.loc.start.line - prev.loc.end.line >= 2)
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return true;
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}
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return false;
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}
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function checkSpacing(prev, node) {
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if (hasEmptyLines(prev, node)) {
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context.report({
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messageId: "noLineGap",
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node,
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data: {
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prop1: getPropName(prev),
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prop2: getPropName(node)
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}
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});
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}
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if (prev.loc.end.line !== node.loc.end.line)
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return;
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const between = sourceCode.text.slice(prev.range[1], node.range[0]);
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if (between !== " ") {
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context.report({
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node,
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messageId: "onlyOneSpace",
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data: {
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prop1: getPropName(prev),
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prop2: getPropName(node)
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},
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fix(fixer) {
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return fixer.replaceTextRange([prev.range[1], node.range[0]], " ");
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}
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});
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}
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}
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function containsGenericType(node) {
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const containsTypeParams = typeof node.typeArguments !== "undefined";
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return containsTypeParams && node.typeArguments?.type === "TSTypeParameterInstantiation";
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}
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function getGenericNode(node) {
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const name = node.name;
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if (containsGenericType(node)) {
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const type = node.typeArguments;
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return Object.assign(
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{},
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node,
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{
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range: [
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name.range[0],
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type?.range[1]
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]
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}
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);
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}
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return name;
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}
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return {
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JSXOpeningElement(node) {
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node.attributes.reduce((prev, prop) => {
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checkSpacing(prev, prop);
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return prop;
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}, getGenericNode(node));
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}
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};
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}
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});
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module.exports = jsxPropsNoMultiSpaces;
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