From 43d859f8f81fb17ed09146cef2137c8ac4405fe1 Mon Sep 17 00:00:00 2001
From: Alexey Pustoshilov <apust@hey.com>
Date: Mon, 30 Nov 2020 13:22:29 +0700
Subject: [PATCH] build: add support for typescript versions <3.9

---
 package-lock.json                | 19 +++++++++++++++++++
 package.json                     |  1 +
 src/packages/core/package.json   |  6 +++++-
 src/packages/layout/package.json |  6 +++++-
 4 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index ede95dbf..572db66a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16551,6 +16551,25 @@
         "dotenv-defaults": "^1.0.2"
       }
     },
+    "downlevel-dts": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/downlevel-dts/-/downlevel-dts-0.7.0.tgz",
+      "integrity": "sha512-tcjGqElN0/oad/LJBlaxmZ3zOYEQOBbGuirKzif8s1jeRiWBdNX9H6OBFlRjOQkosXgV+qSjs4osuGCivyZ4Jw==",
+      "dev": true,
+      "requires": {
+        "semver": "^7.3.2",
+        "shelljs": "^0.8.3",
+        "typescript": "^4.1.0-dev.20201026"
+      },
+      "dependencies": {
+        "typescript": {
+          "version": "4.1.2",
+          "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.2.tgz",
+          "integrity": "sha512-thGloWsGH3SOxv1SoY7QojKi0tc+8FnOmiarEGMbd/lar7QOEd3hvlx3Fp5y6FlDUGl9L+pd4n2e+oToGMmhRQ==",
+          "dev": true
+        }
+      }
+    },
     "downshift": {
       "version": "6.0.6",
       "resolved": "https://registry.npmjs.org/downshift/-/downshift-6.0.6.tgz",
diff --git a/package.json b/package.json
index e915f103..313d2f49 100644
--- a/package.json
+++ b/package.json
@@ -69,6 +69,7 @@
     "@types/node": "^14.0.27",
     "babel-loader": "^8.1.0",
     "codelyzer": "^6.0.0",
+    "downlevel-dts": "^0.7.0",
     "husky": "^4.2.5",
     "jasmine-core": "^3.6.0",
     "jasmine-spec-reporter": "^5.0.2",
diff --git a/src/packages/core/package.json b/src/packages/core/package.json
index a57f4d33..d03b2a1a 100644
--- a/src/packages/core/package.json
+++ b/src/packages/core/package.json
@@ -18,6 +18,10 @@
   },
   "scripts": {
     "build": "export PACKAGE_NAME=`basename $INIT_CWD` && ng build --prod $PACKAGE_NAME",
-    "prepublishOnly": "npm run build"
+    "downlevelDts": "cd dist && npx downlevel-dts . ts3.4 [--to=3.4]",
+    "prepublishOnly": "npm run build && npm run downlevelDts"
+  },
+  "typesVersions": {
+    "<3.9": { "*": ["ts3.4/*"] }
   }
 }
diff --git a/src/packages/layout/package.json b/src/packages/layout/package.json
index dae1874e..4a1b93ac 100644
--- a/src/packages/layout/package.json
+++ b/src/packages/layout/package.json
@@ -20,6 +20,10 @@
   },
   "scripts": {
     "build": "export PACKAGE_NAME=`basename $INIT_CWD` && ng build --prod $PACKAGE_NAME",
-    "prepublishOnly": "npm run build"
+    "downlevelDts": "cd dist && npx downlevel-dts . ts3.4 [--to=3.4]",
+    "prepublishOnly": "npm run build && npm run downlevelDts"
+  },
+  "typesVersions": {
+    "<3.9": { "*": ["ts3.4/*"] }
   }
 }