typeT0=number|T0[]typeT1=T0|T0[]

import{defaultasTypeScriptPlugin}from"@typescript-eslint/eslint-plugin"import*asparserfrom"@typescript-eslint/parser"importtype{ESLint,Linter}from"eslint"constparserOptions={project:[`./tsconfig.json`],sourceType:`module`,}satisfiesparser.ParserOptionsconstcommonRules={"@typescript-eslint/no-redundant-type-constituents":`error`,}satisfiesLinter.Config[`rules`]constconfigs=[{ignores:[`**/node_modules/**`],},{languageOptions:{ parser, parserOptions},files:[`**/*.ts{,x}`,`eslint.config.ts`],plugins:{"@typescript-eslint":TypeScriptPluginasunknownasESLint.Plugin,},rules:commonRules,},]satisfiesLinter.Config[]exportdefaultconfigs

{"include": ["index.ts","eslint.config.ts"],"compilerOptions": {"strict":true,"esModuleInterop":true,"module":"nodenext","moduleResolution":"nodenext"  }}

> eslint index.ts --debug  eslint:cli CLI args: [ 'index.ts', '--debug' ] +0ms  eslint:cli Using flat config? true +1ms  eslint:cli Running on files +3ms  eslint:eslint Using config loader LegacyConfigLoader +0ms  eslint:eslint Using file patterns: index.ts +0ms  eslint:eslint Deleting cache file at /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/.eslintcache +0ms  eslint:config-loader Calculating config for file /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +0ms  eslint:config-loader Searching for eslint.config.js +1ms  eslint:config-loader [Legacy]: Calculating config for /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +1ms  eslint:config-loader [Legacy]: Using config file /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/eslint.config.ts and base path /Users/jem/dojo/disposable/tseslint-repro-stack-overflow +0ms  eslint:config-loader Calculating config array from config file /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/eslint.config.ts and base path /Users/jem/dojo/disposable/tseslint-repro-stack-overflow +0ms  eslint:config-loader Loading config file /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/eslint.config.ts +0ms  eslint:config-loader Loading config from /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/eslint.config.ts +0ms  eslint:config-loader Config file URL is file:///Users/jem/dojo/disposable/tseslint-repro-stack-overflow/eslint.config.ts +0ms  eslint:rules Loading rule 'consistent-return' (remaining=291) +0ms  eslint:rules Loading rule 'dot-notation' (remaining=290) +12ms  eslint:rules Loading rule 'init-declarations' (remaining=289) +5ms  eslint:rules Loading rule 'max-params' (remaining=288) +1ms  eslint:rules Loading rule 'no-dupe-class-members' (remaining=287) +12ms  eslint:rules Loading rule 'no-empty-function' (remaining=286) +3ms  eslint:rules Loading rule 'no-invalid-this' (remaining=285) +9ms  eslint:rules Loading rule 'no-loop-func' (remaining=284) +1ms  eslint:rules Loading rule 'no-loss-of-precision' (remaining=283) +1ms  eslint:rules Loading rule 'no-magic-numbers' (remaining=282) +1ms  eslint:rules Loading rule 'no-restricted-imports' (remaining=281) +15ms  eslint:rules Loading rule 'no-unused-expressions' (remaining=280) +39ms  eslint:rules Loading rule 'no-useless-constructor' (remaining=279) +3ms  eslint:rules Loading rule 'prefer-destructuring' (remaining=278) +6ms  eslint:config-loader Config file /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/eslint.config.ts is not empty +404ms  eslint:eslint 1 file(s) found in 406 ms +406ms  eslint:eslint Linting in single-thread mode. +0ms  eslint:config-loader Looking up cached config for /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +0ms  eslint:config-loader [Legacy]: Looking up cached config for /Users/jem/dojo/disposable/tseslint-repro-stack-overflow +0ms  eslint:eslint-helpers File "/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts" read in 1 ms +0ms  eslint:linter Linting code for /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts (pass 1) +0ms  eslint:linter Verify +0ms  eslint:linter With flat config: /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +0ms  eslint:languages:js Parsing: /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +0ms  eslint:languages:js Parsing successful: /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +367ms  eslint:languages:js Scope analysis: /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +0ms  eslint:languages:js Scope analysis successful: /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +0ms  eslint:linter An error occurred while traversing +405ms  eslint:linter Filename: /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts +0ms  eslint:linter Line: 3 +0ms  eslint:linter Parser Options: { project: [ './tsconfig.json' ], sourceType: 'module' } +0ms  eslint:linter Settings: {} +0msOops! Something went wrong! :(ESLint: 9.39.0RangeError: Maximum call stack size exceededOccurred while linting /Users/jem/dojo/disposable/tseslint-repro-stack-overflow/index.ts:3Rule: "@typescript-eslint/no-redundant-type-constituents"    at isSimpleTypeRelatedTo (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/typescript/lib/typescript.js:68338:33)    at isRelatedTo (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/typescript/lib/typescript.js:68755:163)    at checkTypeRelatedTo (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/typescript/lib/typescript.js:68466:20)    at isTypeRelatedTo (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/typescript/lib/typescript.js:68399:14)    at Object.isTypeAssignableTo (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/typescript/lib/typescript.js:67525:12)    at isTargetTypeRedundantInUnion (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/@typescript-eslint/eslint-plugin/dist/rules/no-redundant-type-constituents.js:290:20)    at isTargetTypeRedundantInUnion (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/@typescript-eslint/eslint-plugin/dist/rules/no-redundant-type-constituents.js:214:33)    at isTargetTypeRedundantInUnion (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/@typescript-eslint/eslint-plugin/dist/rules/no-redundant-type-constituents.js:205:33)    at isTargetTypeRedundantInUnion (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/@typescript-eslint/eslint-plugin/dist/rules/no-redundant-type-constituents.js:264:16)    at isTargetTypeRedundantInUnion (/Users/jem/dojo/disposable/tseslint-repro-stack-overflow/node_modules/@typescript-eslint/eslint-plugin/dist/rules/no-redundant-type-constituents.js:214:33)