feat(typescript-types): Add IsAny<T>

packages/typescript-types/README.md

@@ -0,0 +1,15 @@
+# Typescript Types
+
+A utility types library for Typescript.
+
+### Types
+
+The types included in this library are categorized by their purpose.
+
+#### Test Types
+
+| Type           | Description                                                                        |
+| -------------- | ---------------------------------------------------------------------------------- |
+| [`IsAny<T>`][] | `true` if `T` is `any`, `false` otherwise (`null`, `undefined` also yield `false`) |
+
+[`IsAny<T>`]: src/is-any.ts

packages/typescript-types/package.json

@@ -0,0 +1,28 @@
+{
+	"name": "@tabshift/typescript-types",
+	"description": "Extended utility types for Typescript",
+	"version": "1.0.0",
+	"type": "module",
+	"files": [
+		"src"
+	],
+	"scripts": {
+		"test": "tstyche",
+		"prepublish": "pnpm build"
+	},
+	"publishConfig": {
+		"access": "public"
+	},
+	"devDependencies": {
+		"@tabshift/typescript-config": "workspace:",
+		"tstyche": "^4.1.0",
+		"typescript": "latest"
+	},
+	"author": "T. R. Bernstein <ljspkgs01-project@tabshift.dev>",
+	"license": "EUPL-1.2",
+	"exports": {
+		".": {
+			"types": "./src/index.d.ts"
+		}
+	}
+}

packages/typescript-types/src/index.d.ts

@@ -0,0 +1 @@
+export type * from './is-any.js'

packages/typescript-types/src/is-any.ts

@@ -0,0 +1,2 @@
+// Based on: https://stackoverflow.com/questions/49927523/disallow-call-with-any/49928360#49928360
+export type IsAny<T> = 0 extends 1 & T ? true : false

packages/typescript-types/test/is-any.tst.ts

@@ -0,0 +1,10 @@
+import type { IsAny } from '@/is-any.js'
+import { expect } from 'tstyche'
+
+expect<IsAny<any>>().type.toBe<true>()
+
+expect<IsAny<1>>().type.toBe<false>()
+expect<IsAny<'somestring'>>().type.toBe<false>()
+expect<IsAny<null>>().type.toBe<false>()
+expect<IsAny<undefined>>().type.toBe<false>()
+expect<IsAny<unknown>>().type.toBe<false>()

packages/typescript-types/test/tsconfig.json

@@ -0,0 +1,9 @@
+{
+	"extends": "../tsconfig.json",
+	"compilerOptions": {
+		"noEmit": true,
+		"strict": true,
+		"types": []
+	},
+	"include": ["./"]
+}

packages/typescript-types/tsconfig.json

@@ -0,0 +1,10 @@
+{
+	"extends": "@tabshift/typescript-config/base.json",
+	"compilerOptions": {
+		"rootDir": "src",
+		"paths": {
+			"@/*": ["./src/*"]
+		}
+	},
+	"include": ["src"]
+}