Maximum call stack size exceeded

ts-node t.ts `xxx\node_modules_typescript@3.7.2@typescript\lib\typescript.js:35954 function trySymbolTable(symbols, ignoreQualification) { ^

RangeError: Maximum call stack size exceeded `

// t.ts const path = require(‘path’) const TJS = require(‘typescript-json-schema’) const glob = require(‘glob’)

// optionally pass argument to schema generator const settings = { required: true, uniqueNames: true, out: ‘./a.json’, strictNullChecks: true, include: [‘**/*schema.ts’], }

TJS.exec(‘./tsconfig.json’, ‘*’, settings)

// tsconfig.json `{ “compilerOptions”: { /* Basic Options / // “incremental”: true, / Enable incremental compilation / “target”: “es5”, / Specify ECMAScript target version: ‘ES3’ (default), ‘ES5’, ‘ES2015’, ‘ES2016’, ‘ES2017’, ‘ES2018’, ‘ES2019’ or ‘ESNEXT’. / “module”: “ESNext”, / Specify module code generation: ‘none’, ‘commonjs’, ‘amd’, ‘system’, ‘umd’, ‘es2015’, or ‘ESNext’. / // “lib”: [], / Specify library files to be included in the compilation. / “allowJs”: true, / Allow javascript files to be compiled. / // “checkJs”: true, / Report errors in .js files. / “jsx”: “preserve”, / Specify JSX code generation: ‘preserve’, ‘react-native’, or ‘react’. / // “declaration”: true, / Generates corresponding ‘.d.ts’ file. / // “declarationMap”: true, / Generates a sourcemap for each corresponding ‘.d.ts’ file. / “sourceMap”: true, / Generates corresponding ‘.map’ file. / // “outFile”: “./”, / Concatenate and emit output to single file. / // “outDir”: “./”, / Redirect output structure to the directory. / // “rootDir”: “./”, / Specify the root directory of input files. Use to control the output directory structure with --outDir. / // “composite”: true, / Enable project compilation / // “tsBuildInfoFile”: “./”, / Specify file to store incremental compilation information / // “removeComments”: true, / Do not emit comments to output. / // “noEmit”: true, / Do not emit outputs. / // “importHelpers”: true, / Import emit helpers from ‘tslib’. / // “downlevelIteration”: true, / Provide full support for iterables in ‘for-of’, spread, and destructuring when targeting ‘ES5’ or ‘ES3’. / // “isolatedModules”: true, / Transpile each file as a separate module (similar to ‘ts.transpileModule’). */

/* Strict Type-Checking Options */
// "strict": true,                           /* Enable all strict type-checking options. */
// "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true,              /* Enable strict null checks. */
// "strictFunctionTypes": true,           /* Enable strict checking of function types. */
// "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
// "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
// "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
// "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */

/* Additional Checks */
// "noUnusedLocals": true,                /* Report errors on unused locals. */
// "noUnusedParameters": true,            /* Report errors on unused parameters. */
// "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */

/* Module Resolution Options */
"moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
"baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
"paths": {
  "@/*": ["src/*"],
  "utils/*": ["src/utils/*"],
  "components/*": ["src/components/*"]
},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
// "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
// "typeRoots": [],                       /* List of folders to include type definitions from. */
// "types": [],                           /* Type declaration files to be included in compilation. */
// "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
"esModuleInterop": true,                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
// "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
// "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */

/* Source Map Options */
// "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */

/* Experimental Options */
"experimentalDecorators": true      /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */

} } `

[phaux]

Repro:

interface Test {
  children: TestChildren;
}

type TestChildren = TestChild | Array<TestChild | TestChildren>;

interface TestChild {
  type: "child";
}

npx typescript-json-schema tsconfig.json Test --include repro.ts

Maximum call stack size exceeded

[darkowic]

Works with really advanced React types! Check it here https://github.com/Guidewire/ts-to-json-schema-tests/blob/main/schemas/typescript-json-schema-ExampleProps.json

yeah it’s huge and you (we) probably don’t want it but at least it works