TanTan
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90 lines
2.3 KiB
Plaintext
90 lines
2.3 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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var noMixedSpacesAndTabs = utils.createRule({
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name: "no-mixed-spaces-and-tabs",
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package: "js",
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meta: {
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type: "layout",
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docs: {
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description: "Disallow mixed spaces and tabs for indentation"
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},
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schema: [
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{
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oneOf: [
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{
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type: "string",
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enum: ["smart-tabs"]
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},
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{
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type: "boolean"
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}
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]
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}
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],
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messages: {
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mixedSpacesAndTabs: "Mixed spaces and tabs."
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}
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},
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create(context) {
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const sourceCode = context.sourceCode;
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let smartTabs;
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switch (context.options[0]) {
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case true:
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// Support old syntax, maybe add deprecation warning here
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case "smart-tabs":
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smartTabs = true;
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break;
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default:
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smartTabs = false;
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}
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return {
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"Program:exit": function(node) {
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const lines = sourceCode.lines;
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const comments = sourceCode.getAllComments();
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const ignoredCommentLines = /* @__PURE__ */ new Set();
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comments.forEach((comment) => {
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for (let i = comment.loc.start.line + 1; i <= comment.loc.end.line; i++)
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ignoredCommentLines.add(i);
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});
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let regex = /^(?=( +|\t+))\1(?:\t| )/u;
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if (smartTabs) {
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regex = /^(?=(\t*))\1(?=( +))\2\t/u;
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}
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lines.forEach((line, i) => {
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const match = regex.exec(line);
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if (match) {
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const lineNumber = i + 1;
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const loc = {
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start: {
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line: lineNumber,
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column: match[0].length - 2
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},
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end: {
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line: lineNumber,
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column: match[0].length
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}
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};
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if (!ignoredCommentLines.has(lineNumber)) {
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const containingNode = sourceCode.getNodeByRangeIndex(sourceCode.getIndexFromLoc(loc.start));
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if (!(containingNode && ["Literal", "TemplateElement"].includes(containingNode.type))) {
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context.report({
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node,
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loc,
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messageId: "mixedSpacesAndTabs"
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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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});
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module.exports = noMixedSpacesAndTabs;
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