feat: use @optolith/helpers package

package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.10.7",
       "license": "MPL-2.0",
       "dependencies": {
+        "@optolith/helpers": "^0.2.1",
         "typescript": "^5.2.2"
       },
       "bin": {
@@ -513,6 +514,12 @@
         "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
       }
     },
+    "node_modules/@optolith/helpers": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@optolith/helpers/-/helpers-0.2.1.tgz",
+      "integrity": "sha512-i2mg5ro2XaY0sFT3vwW+BBuMYVuJpHRMt27X9/sBfXmgY6L16aKG3UXEcP5jjX+/gjH2AM7Uiz6xgtV31/rFLw==",
+      "license": "MPL-2.0"
+    },
     "node_modules/@pkgjs/parseargs": {
       "version": "0.11.0",
       "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
@@ -3218,6 +3225,11 @@
         }
       }
     },
+    "@optolith/helpers": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@optolith/helpers/-/helpers-0.2.1.tgz",
+      "integrity": "sha512-i2mg5ro2XaY0sFT3vwW+BBuMYVuJpHRMt27X9/sBfXmgY6L16aKG3UXEcP5jjX+/gjH2AM7Uiz6xgtV31/rFLw=="
+    },
     "@pkgjs/parseargs": {
       "version": "0.11.0",
       "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",

package.json

@@ -28,6 +28,7 @@
   "author": "Lukas Obermann",
   "license": "MPL-2.0",
   "dependencies": {
+    "@optolith/helpers": "^0.2.1",
     "typescript": "^5.2.2"
   },
   "devDependencies": {

src/parser/resolvetypeargs.ts

@@ -1,3 +1,5 @@
+import { isNotNullish } from "@optolith/helpers/nullable"
+import { assertExhaustive } from "@optolith/helpers/typeSafety"
 import {
   ContentNode,
   EnumerationNode,
@@ -10,8 +12,6 @@ import {
   TypeDefinitionNode,
   isExportAssignmentNode,
 } from "../ast.js"
-import { assertExhaustive } from "../utils/assertExhaustive.js"
-import { isNotNullish } from "../utils/nullable.js"
 
 enum ScopeTypeKind {
   Default,

src/renderers/jsonSchema.ts

@@ -1,3 +1,4 @@
+import { assertExhaustive } from "@optolith/helpers/typeSafety"
 import { EOL } from "node:os"
 import { sep } from "node:path"
 import {
@@ -12,7 +13,6 @@ import {
   isReferenceNode,
 } from "../ast.js"
 import { AstTransformer, Renderer } from "../main.js"
-import { assertExhaustive } from "../utils/assertExhaustive.js"
 import {
   getAliasedImportName,
   getFullyQualifiedNameAsPath,

src/renderers/markdown.ts

@@ -1,3 +1,5 @@
+import { isNotNullish } from "@optolith/helpers/nullable"
+import { assertExhaustive } from "@optolith/helpers/typeSafety"
 import { EOL } from "node:os"
 import {
   ArrayNode,
@@ -20,8 +22,6 @@ import {
   isTokenNode,
 } from "../ast.js"
 import { AstTransformer, Renderer } from "../main.js"
-import { assertExhaustive } from "../utils/assertExhaustive.js"
-import { isNotNullish } from "../utils/nullable.js"
 import {
   getRightmostQualifiedNameSegment,
   qualifiedNameToArray,

src/utils/assertExhaustive.ts

@@ -1,6 +0,0 @@
-export function assertExhaustive(
-  _x: never,
-  msg: string = "The switch is not exhaustive."
-): never {
-  throw new Error(msg)
-}

src/utils/nullable.ts

@@ -1,2 +0,0 @@
-export const isNotNullish = <T>(value: T): value is NonNullable<T> =>
-  value !== null && value !== undefined