Pin to typescript 20200908 (#907)

Co-Authored-By: abuco <[email protected]>

Co-authored-by: abuco <[email protected]>

Author: saschanaz

package.json

@@ -10,16 +10,16 @@
     "test": "tsc -p ./tsconfig.json && node ./lib/index.js && node ./lib/test.js"
   },
   "dependencies": {
-    "@types/jsdom": "^11.12.0",
-    "@types/node": "^9.6.56",
-    "@types/node-fetch": "^1.6.9",
-    "@types/webidl2": "^23.12.1",
+    "@types/jsdom": "^16.2.4",
+    "@types/node": "^14.6.4",
+    "@types/node-fetch": "^2.5.7",
+    "@types/webidl2": "^23.13.2",
     "cpx2": "^2.0.0",
-    "jsdom": "^11.12.0",
-    "node-fetch": "^2.6.0",
-    "print-diff": "^0.1.1",
+    "jsdom": "^16.4.0",
+    "node-fetch": "^2.6.1",
+    "print-diff": "^1.0.0",
     "styleless-innertext": "^1.1.2",
-    "typescript": "next",
-    "webidl2": "^23.12.1"
+    "typescript": "4.1.0-dev.20200908",
+    "webidl2": "^23.13.0"
   }
 }

src/widlprocess.ts

@@ -33,7 +33,7 @@ export function convert(text: string, commentMap: Record<string, string>) {
             browser.namespaces!.push(convertNamespace(rootType, commentMap));
         }
         else if (rootType.type === "callback interface") {
-            browser["callback-interfaces"]!.interface[rootType.name] = convertInterface(rootType, commentMap);
+            browser["callback-interfaces"]!.interface[rootType.name] = convertInterfaceCommon(rootType, commentMap);
         }
         else if (rootType.type === "callback") {
             browser["callback-functions"]!["callback-function"][rootType.name]
@@ -109,7 +109,7 @@ function addComments(obj: any, commentMap: Record<string, string>, container: st
     }
 }
 
-function convertInterfaceCommon(i: webidl2.InterfaceType | webidl2.InterfaceMixinType, commentMap: Record<string, string>) {
+function convertInterfaceCommon(i: webidl2.InterfaceType | webidl2.InterfaceMixinType | webidl2.CallbackInterfaceType, commentMap: Record<string, string>) {
     const result: Browser.Interface = {
         name: i.name,
         extends: "Object",