Add support for js index file - #219 (#251)

Add itest to cover use of JS files

example/with-js/.gitignore

@@ -0,0 +1 @@
+build

example/with-js/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "with-js",
+  "version": "0.0.0",
+  "description": "Example used by integration tests (ispec) - with-js",
+  "main": "src/index.js",
+  "scripts": {
+    "build": "tsc --allowJs",
+    "test": "tsc --allowJs && ../../bin/ts-unused-exports tsconfig.json"
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "typescript": "^4.7.4"
+  }
+}

example/with-js/src/Component/Component.js

@@ -0,0 +1,2 @@
+export function Component() {
+}

example/with-js/src/Game/Entity.ts

@@ -0,0 +1,5 @@
+import { Component } from '../Component/Component.js'
+
+export class Entity
+{
+}

example/with-js/src/Game/Player.js

@@ -0,0 +1,2 @@
+export function Player() {
+}

example/with-js/src/comp.tsx

@@ -0,0 +1,6 @@
+import * as React from 'react';
+import { thisOneIsUsed } from './util';
+
+const Comp = ({ a }: { a: string }) => <div>{thisOneIsUsed}{a}</div>;
+
+console.log(Comp);

example/with-js/src/index.ts

@@ -0,0 +1,7 @@
+import { Entity } from './Game/Entity'
+import { Player } from './Game/Player.js'
+import { thisOneIsUsed } from "./util"
+
+console.log(`Entity: ${Entity}`)
+console.log(`Player: ${Player}`)
+console.log(`thisOneIsUsed: ${thisOneIsUsed}`)

example/with-js/src/unused.ts

@@ -0,0 +1 @@
+export const thisOneIsNotUsed = 2;

example/with-js/src/util.ts

@@ -0,0 +1,2 @@
+export const thisOneIsUsed = 1;
+export const thisOneIsNotUsed = 2;

example/with-js/tsconfig.json

@@ -0,0 +1,15 @@
+{
+    "compilerOptions": {
+      "module": "es6",
+      "target": "es2019",
+      "noImplicitAny": false,
+      "alwaysStrict": true,
+      "removeComments": true,
+      "strictNullChecks": true,
+      "preserveConstEnums": true,
+      "sourceMap": true,
+      "outDir": "build"
+    },
+    "include": ["src/**/*.ts"],
+    "exclude": ["node_modules"]
+  }

ispec/run.sh

@@ -79,5 +79,9 @@ pushd ../example/path-alias-and-sub-folders
 run_itest
 popd
 
+pushd ../example/with-js
+run_itest
+popd
+
 # Test running from another directory
 ./_run_from_directory_not_project.sh