feat: update to eslint 9, switch to esm

.vscode/settings.json

@@ -1,17 +1,18 @@
 // Place your settings in this file to overwrite default and user settings.
 {
   "search.exclude": {
-    "dist": true,
-    "bin": true
+    "dist": true
   },
   "files.trimTrailingWhitespace": true,
   "typescript.tsdk": "node_modules/typescript/lib",
   "files.insertFinalNewline": true,
-  "eslint.validate": ["javascript", "javascriptreact", "typescript", "typescriptreact"],
+  "eslint.validate": ["javascript", "javascriptreact", "typescript"],
   "editor.tabSize": 4,
   "editor.formatOnSave": true,
   "editor.codeActionsOnSave": {
     "source.fixAll.eslint": "explicit"
   },
-  "jest.autoRun": "off"
+  "eslint.experimental.useFlatConfig": true,
+  "jest.runMode": "on-demand",
+  "javascript.preferences.importModuleSpecifierEnding": "js"
 }

bin/ts-json-schema-generator

@@ -1,2 +1,2 @@
 #!/usr/bin/env node
-require('../dist/ts-json-schema-generator');
+import("../dist/ts-json-schema-generator.js");

eslint.config.js

@@ -0,0 +1,78 @@
+import eslint from "@eslint/js";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+import eslintPluginPrettierRecommended from "eslint-plugin-prettier/recommended";
+
+/** @type {import('@types/eslint').Linter.FlatConfig[]} */
+export default tseslint.config(
+    {
+        ignores: ["dist"],
+    },
+    eslint.configs.recommended,
+    {
+        files: [
+            "ts-json-schema-generator.ts",
+            "index.ts",
+            "src/**/*.ts",
+            "factory/**/*.ts",
+            "bin/**",
+            "test/**/*.test.ts",
+            "test/utils.ts",
+        ],
+        extends: tseslint.configs.recommendedTypeChecked,
+        languageOptions: {
+            sourceType: "module",
+            parserOptions: {
+                project: "tsconfig.eslint.json",
+                tsconfigRootDir: import.meta.dirname,
+            },
+        },
+        rules: {
+            "@typescript-eslint/explicit-function-return-type": "off",
+            "@typescript-eslint/no-explicit-any": "off",
+            "@typescript-eslint/prefer-for-of": "error",
+            "@typescript-eslint/no-require-imports": "error",
+            "@typescript-eslint/no-parameter-properties": "off",
+            "no-unused-vars": "off",
+            "@typescript-eslint/no-unused-vars": [
+                "error",
+                {
+                    vars: "all",
+                    args: "none",
+                    ignoreRestSiblings: true,
+                },
+            ],
+            "@typescript-eslint/no-object-literal-type-assertion": "off",
+            "@typescript-eslint/no-namespace": "error",
+            "@typescript-eslint/no-non-null-assertion": "off",
+            "@typescript-eslint/no-unsafe-assignment": "warn",
+            "@typescript-eslint/no-unsafe-member-access": "warn",
+            "@typescript-eslint/no-unsafe-return": "warn",
+            "@typescript-eslint/no-unsafe-argument": "warn",
+            "@typescript-eslint/no-unsafe-call": "warn",
+            "@typescript-eslint/no-floating-promises": "off",
+            "@typescript-eslint/no-unnecessary-type-assertion": "warn",
+            "no-alert": "error",
+            "prefer-const": "error",
+            "no-return-assign": "error",
+            "no-useless-call": "error",
+            "no-shadow": "error",
+            "no-useless-concat": "error",
+            "no-undef": "off",
+            "no-prototype-builtins": "off",
+        },
+    },
+    {
+        files: ["*.js"],
+        ...tseslint.configs.disableTypeChecked,
+    },
+    {
+        files: ["test/**/*.test.ts"],
+        languageOptions: {
+            globals: {
+                ...globals.jest,
+            },
+        },
+    },
+    eslintPluginPrettierRecommended
+);

factory/formatter.ts

@@ -1,36 +1,36 @@
-import { ChainTypeFormatter } from "../src/ChainTypeFormatter";
-import { CircularReferenceTypeFormatter } from "../src/CircularReferenceTypeFormatter";
-import { CompletedConfig } from "../src/Config";
-import { MutableTypeFormatter } from "../src/MutableTypeFormatter";
-import { TypeFormatter } from "../src/TypeFormatter";
-import { AliasTypeFormatter } from "../src/TypeFormatter/AliasTypeFormatter";
-import { AnnotatedTypeFormatter } from "../src/TypeFormatter/AnnotatedTypeFormatter";
-import { AnyTypeFormatter } from "../src/TypeFormatter/AnyTypeFormatter";
-import { ArrayTypeFormatter } from "../src/TypeFormatter/ArrayTypeFormatter";
-import { BooleanTypeFormatter } from "../src/TypeFormatter/BooleanTypeFormatter";
-import { ConstructorTypeFormatter } from "../src/TypeFormatter/ConstructorTypeFormatter";
-import { DefinitionTypeFormatter } from "../src/TypeFormatter/DefinitionTypeFormatter";
-import { EnumTypeFormatter } from "../src/TypeFormatter/EnumTypeFormatter";
-import { FunctionTypeFormatter } from "../src/TypeFormatter/FunctionTypeFormatter";
-import { HiddenTypeFormatter } from "../src/TypeFormatter/HiddenTypeFormatter";
-import { IntersectionTypeFormatter } from "../src/TypeFormatter/IntersectionTypeFormatter";
-import { LiteralTypeFormatter } from "../src/TypeFormatter/LiteralTypeFormatter";
-import { LiteralUnionTypeFormatter } from "../src/TypeFormatter/LiteralUnionTypeFormatter";
-import { NeverTypeFormatter } from "../src/TypeFormatter/NeverTypeFormatter";
-import { NullTypeFormatter } from "../src/TypeFormatter/NullTypeFormatter";
-import { NumberTypeFormatter } from "../src/TypeFormatter/NumberTypeFormatter";
-import { ObjectTypeFormatter } from "../src/TypeFormatter/ObjectTypeFormatter";
-import { OptionalTypeFormatter } from "../src/TypeFormatter/OptionalTypeFormatter";
-import { PrimitiveUnionTypeFormatter } from "../src/TypeFormatter/PrimitiveUnionTypeFormatter";
-import { ReferenceTypeFormatter } from "../src/TypeFormatter/ReferenceTypeFormatter";
-import { RestTypeFormatter } from "../src/TypeFormatter/RestTypeFormatter";
-import { StringTypeFormatter } from "../src/TypeFormatter/StringTypeFormatter";
-import { SymbolTypeFormatter } from "../src/TypeFormatter/SymbolTypeFormatter";
-import { TupleTypeFormatter } from "../src/TypeFormatter/TupleTypeFormatter";
-import { UndefinedTypeFormatter } from "../src/TypeFormatter/UndefinedTypeFormatter";
-import { UnionTypeFormatter } from "../src/TypeFormatter/UnionTypeFormatter";
-import { UnknownTypeFormatter } from "../src/TypeFormatter/UnknownTypeFormatter";
-import { VoidTypeFormatter } from "../src/TypeFormatter/VoidTypeFormatter";
+import { ChainTypeFormatter } from "../src/ChainTypeFormatter.js";
+import { CircularReferenceTypeFormatter } from "../src/CircularReferenceTypeFormatter.js";
+import { CompletedConfig } from "../src/Config.js";
+import { MutableTypeFormatter } from "../src/MutableTypeFormatter.js";
+import { TypeFormatter } from "../src/TypeFormatter.js";
+import { AliasTypeFormatter } from "../src/TypeFormatter/AliasTypeFormatter.js";
+import { AnnotatedTypeFormatter } from "../src/TypeFormatter/AnnotatedTypeFormatter.js";
+import { AnyTypeFormatter } from "../src/TypeFormatter/AnyTypeFormatter.js";
+import { ArrayTypeFormatter } from "../src/TypeFormatter/ArrayTypeFormatter.js";
+import { BooleanTypeFormatter } from "../src/TypeFormatter/BooleanTypeFormatter.js";
+import { ConstructorTypeFormatter } from "../src/TypeFormatter/ConstructorTypeFormatter.js";
+import { DefinitionTypeFormatter } from "../src/TypeFormatter/DefinitionTypeFormatter.js";
+import { EnumTypeFormatter } from "../src/TypeFormatter/EnumTypeFormatter.js";
+import { FunctionTypeFormatter } from "../src/TypeFormatter/FunctionTypeFormatter.js";
+import { HiddenTypeFormatter } from "../src/TypeFormatter/HiddenTypeFormatter.js";
+import { IntersectionTypeFormatter } from "../src/TypeFormatter/IntersectionTypeFormatter.js";
+import { LiteralTypeFormatter } from "../src/TypeFormatter/LiteralTypeFormatter.js";
+import { LiteralUnionTypeFormatter } from "../src/TypeFormatter/LiteralUnionTypeFormatter.js";
+import { NeverTypeFormatter } from "../src/TypeFormatter/NeverTypeFormatter.js";
+import { NullTypeFormatter } from "../src/TypeFormatter/NullTypeFormatter.js";
+import { NumberTypeFormatter } from "../src/TypeFormatter/NumberTypeFormatter.js";
+import { ObjectTypeFormatter } from "../src/TypeFormatter/ObjectTypeFormatter.js";
+import { OptionalTypeFormatter } from "../src/TypeFormatter/OptionalTypeFormatter.js";
+import { PrimitiveUnionTypeFormatter } from "../src/TypeFormatter/PrimitiveUnionTypeFormatter.js";
+import { ReferenceTypeFormatter } from "../src/TypeFormatter/ReferenceTypeFormatter.js";
+import { RestTypeFormatter } from "../src/TypeFormatter/RestTypeFormatter.js";
+import { StringTypeFormatter } from "../src/TypeFormatter/StringTypeFormatter.js";
+import { SymbolTypeFormatter } from "../src/TypeFormatter/SymbolTypeFormatter.js";
+import { TupleTypeFormatter } from "../src/TypeFormatter/TupleTypeFormatter.js";
+import { UndefinedTypeFormatter } from "../src/TypeFormatter/UndefinedTypeFormatter.js";
+import { UnionTypeFormatter } from "../src/TypeFormatter/UnionTypeFormatter.js";
+import { UnknownTypeFormatter } from "../src/TypeFormatter/UnknownTypeFormatter.js";
+import { VoidTypeFormatter } from "../src/TypeFormatter/VoidTypeFormatter.js";
 
 export type FormatterAugmentor = (
     formatter: MutableTypeFormatter,

factory/generator.ts

@@ -1,8 +1,8 @@
-import { Config, DEFAULT_CONFIG } from "../src/Config";
-import { SchemaGenerator } from "../src/SchemaGenerator";
-import { createFormatter } from "./formatter";
-import { createParser } from "./parser";
-import { createProgram } from "./program";
+import { Config, DEFAULT_CONFIG } from "../src/Config.js";
+import { SchemaGenerator } from "../src/SchemaGenerator.js";
+import { createFormatter } from "./formatter.js";
+import { createParser } from "./parser.js";
+import { createProgram } from "./program.js";
 
 export function createGenerator(config: Config): SchemaGenerator {
     const completedConfig = { ...DEFAULT_CONFIG, ...config };

factory/index.ts

@@ -1,4 +1,4 @@
-export * from "./formatter";
-export * from "./generator";
-export * from "./parser";
-export * from "./program";
+export * from "./formatter.js";
+export * from "./generator.js";
+export * from "./parser.js";
+export * from "./program.js";