From 857c99bd718493463199bd54f97a69300d20ed90 Mon Sep 17 00:00:00 2001
From: NullVoxPopuli <LPSego3+dev@gmail.com>
Date: Wed, 26 May 2021 15:52:57 -0400
Subject: [PATCH 1/4] chore(ci): add type checking

---
 .github/workflows/ci.yml | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9037b50..745d5c7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,6 +13,19 @@ env:
   CI: true
 
 jobs:
+  type_checking:
+    if: "! contains(toJSON(github.event.commits.*.message), '[skip ci]')"
+    name: Check Types
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: volta-cli/action@v1
+
+      - run: yarn install --frozen-lockfile
+      - run: yarn prepack
+
+
   tests:
     if: "! contains(toJSON(github.event.commits.*.message), '[skip ci]')"
     name: Base Tests

From 30e853467a51e3bea01428b243bdc1c3bbdcacd4 Mon Sep 17 00:00:00 2001
From: NullVoxPopuli <LPSego3+dev@gmail.com>
Date: Wed, 26 May 2021 15:59:01 -0400
Subject: [PATCH 2/4] chore(internal): convert some test js files to ts

---
 tests/dummy/app/{app.js => app.ts}       | 0
 tests/dummy/app/{router.js => router.ts} | 0
 tests/{test-helper.js => test-helper.ts} | 0
 3 files changed, 0 insertions(+), 0 deletions(-)
 rename tests/dummy/app/{app.js => app.ts} (100%)
 rename tests/dummy/app/{router.js => router.ts} (100%)
 rename tests/{test-helper.js => test-helper.ts} (100%)

diff --git a/tests/dummy/app/app.js b/tests/dummy/app/app.ts
similarity index 100%
rename from tests/dummy/app/app.js
rename to tests/dummy/app/app.ts
diff --git a/tests/dummy/app/router.js b/tests/dummy/app/router.ts
similarity index 100%
rename from tests/dummy/app/router.js
rename to tests/dummy/app/router.ts
diff --git a/tests/test-helper.js b/tests/test-helper.ts
similarity index 100%
rename from tests/test-helper.js
rename to tests/test-helper.ts

From 5d447ef927cad29d97940355c2afd160d359a02a Mon Sep 17 00:00:00 2001
From: NullVoxPopuli <LPSego3+dev@gmail.com>
Date: Wed, 26 May 2021 16:04:47 -0400
Subject: [PATCH 3/4] fix(types): withHashSupport needs explicit type

---
 addon/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/addon/index.ts b/addon/index.ts
index 290368e..c714ef1 100644
--- a/addon/index.ts
+++ b/addon/index.ts
@@ -16,7 +16,7 @@ type TransitionWithPrivateAPIs = Transition & {
   };
 };
 
-export function withHashSupport(AppRouter: typeof EmberRouter) {
+export function withHashSupport(AppRouter: typeof EmberRouter): typeof AppRouter {
   return class RouterWithHashSupport extends AppRouter {
     constructor(...args: RouterArgs) {
       super(...args);

From 0c0ad08e3b0e49223a9eb892efcc94ab362bb0e4 Mon Sep 17 00:00:00 2001
From: NullVoxPopuli <LPSego3+dev@gmail.com>
Date: Wed, 26 May 2021 16:08:55 -0400
Subject: [PATCH 4/4] chore(ci): make compatibility tests require that type
 checking succeeds

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 745d5c7..9287b0e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -74,7 +74,7 @@ jobs:
     name: "Compatibility"
     timeout-minutes: 7
     runs-on: ubuntu-latest
-    needs: tests
+    needs: [ tests, type_checking ]
 
     strategy:
       fail-fast: true