82 lines
1.7 KiB
JavaScript
82 lines
1.7 KiB
JavaScript
import {checkVueTemplate} from './utils/rule.js';
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import {isNumericLiteral, isBigIntLiteral} from './ast/index.js';
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const MESSAGE_ID = 'number-literal-case';
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const messages = {
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[MESSAGE_ID]: 'Invalid number literal casing.',
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};
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/**
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@param {string} raw
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@param {Options} options
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*/
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const fix = (raw, {hexadecimalValue}) => {
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let fixed = raw.toLowerCase();
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if (fixed.startsWith('0x')) {
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fixed = '0x' + fixed.slice(2)[hexadecimalValue === 'lowercase' ? 'toLowerCase' : 'toUpperCase']();
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}
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return fixed;
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};
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/** @param {import('eslint').Rule.RuleContext} context */
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const create = context => ({
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Literal(node) {
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const {raw} = node;
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/** @type {Options} */
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const options = context.options[0] ?? {};
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options.hexadecimalValue ??= 'uppercase';
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let fixed = raw;
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if (isNumericLiteral(node)) {
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fixed = fix(raw, options);
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} else if (isBigIntLiteral(node)) {
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fixed = fix(raw.slice(0, -1), options) + 'n';
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}
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if (raw !== fixed) {
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return {
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node,
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messageId: MESSAGE_ID,
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fix: fixer => fixer.replaceText(node, fixed),
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};
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}
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},
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});
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/** @typedef {Record<keyof typeof schema[0]["properties"], typeof caseEnum["enum"][number]>} Options */
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const caseEnum = /** @type {const} */ ({
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enum: ['uppercase', 'lowercase'],
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});
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const schema = [
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{
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type: 'object',
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additionalProperties: false,
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properties: {
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hexadecimalValue: caseEnum,
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},
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},
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];
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/** @type {import('eslint').Rule.RuleModule} */
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const config = {
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create: checkVueTemplate(create),
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meta: {
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type: 'suggestion',
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docs: {
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description: 'Enforce proper case for numeric literals.',
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recommended: 'unopinionated',
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},
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fixable: 'code',
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schema,
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defaultOptions: [{
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hexadecimalValue: 'uppercase',
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}],
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messages,
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},
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};
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export default config;
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