| 1 | 'use strict';
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| 2 | const getDocumentationUrl = require('./utils/get-documentation-url');
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| 3 |
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| 4 | const fix = (raw, isBigInt) => {
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| 5 | let fixed = raw.toLowerCase();
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| 6 | if (fixed.startsWith('0x')) {
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| 7 | fixed = '0x' + fixed.slice(2).toUpperCase();
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| 8 |
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| 9 | if (isBigInt) {
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| 10 | fixed = fixed.slice(0, -1) + 'n';
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| 11 | }
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| 12 | }
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| 13 |
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| 14 | return fixed;
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| 15 | };
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| 16 |
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| 17 | const create = context => {
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| 18 | return {
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| 19 | Literal: node => {
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| 20 | const {value, raw, bigint} = node;
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| 21 | const isBigInt = Boolean(bigint);
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| 22 |
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| 23 | if (typeof value !== 'number' && !isBigInt) {
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| 24 | return;
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| 25 | }
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| 26 |
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| 27 | const fixed = fix(raw, isBigInt);
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| 28 |
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| 29 | if (raw !== fixed) {
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| 30 | context.report({
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| 31 | node,
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| 32 | message: 'Invalid number literal casing.',
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| 33 | fix: fixer => fixer.replaceText(node, fixed)
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| 34 | });
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| 35 | }
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| 36 | }
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| 37 | };
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| 38 | };
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| 39 |
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| 40 | module.exports = {
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| 41 | create,
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| 42 | meta: {
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| 43 | type: 'suggestion',
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| 44 | docs: {
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| 45 | url: getDocumentationUrl(__filename)
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| 46 | },
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| 47 | fixable: 'code'
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| 48 | }
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| 49 | };
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