unwrap Promise from param types

Author: saschanaz

baselines/dom.generated.d.ts

@@ -10875,7 +10875,7 @@ declare var PaymentRequest: {
 };
 
 interface PaymentRequestUpdateEvent extends Event {
-    updateWith(detailsPromise: Promise<PaymentDetailsUpdate>): void;
+    updateWith(detailsPromise: PaymentDetailsUpdate | Promise<PaymentDetailsUpdate>): void;
 }
 
 declare var PaymentRequestUpdateEvent: {

baselines/webworker.generated.d.ts

@@ -1231,7 +1231,7 @@ declare var EventTarget: {
 };
 
 interface ExtendableEvent extends Event {
-    waitUntil(f: Promise<any>): void;
+    waitUntil(f: any): void;
 }
 
 declare var ExtendableEvent: {
@@ -1258,7 +1258,7 @@ interface FetchEvent extends ExtendableEvent {
     readonly request: Request;
     readonly resultingClientId: string;
     readonly targetClientId: string;
-    respondWith(r: Promise<Response>): void;
+    respondWith(r: Response | Promise<Response>): void;
 }
 
 declare var FetchEvent: {

src/emitter.ts

@@ -355,7 +355,7 @@ export function emitWebIDl(webidl: Browser.WebIdl, flavor: Flavor) {
         return obj.nullable ? makeNullable(resolvedType) : resolvedType;
     }
 
-    function nameWithForwardedTypes (i: Browser.Interface) {
+    function nameWithForwardedTypes(i: Browser.Interface) {
         const typeParameters = i["type-parameters"];
 
         if (!typeParameters) return i.name;
@@ -389,7 +389,7 @@ export function emitWebIDl(webidl: Browser.WebIdl, flavor: Flavor) {
     }
 
     function processInterfaceType(i: Browser.Interface | Browser.Dictionary | Browser.CallbackFunction, name: string) {
-        function typeParameterWithDefault (type: Browser.TypeParameter) {
+        function typeParameterWithDefault(type: Browser.TypeParameter) {
             return `${type.name}`
                 + (type.extends ? ` extends ${type.extends}` : ``)
                 + (type.default ? ` = ${type.default}` : ``)
@@ -497,8 +497,11 @@ export function emitWebIDl(webidl: Browser.WebIdl, flavor: Flavor) {
     /// Generate the parameters string for function signatures
     function paramsToString(ps: Browser.Param[]) {
         function paramToString(p: Browser.Param) {
+            if (p.type === "Promise" && !Array.isArray(p.subtype)) {
+                p = { name: p.name, type: [p.subtype!, p] }
+            }
             const isOptional = !p.variadic && p.optional;
-            const pType = isOptional ? convertDomTypeToTsType(p) : convertDomTypeToNullableTsType(p);
+            const pType = convertDomTypeToNullableTsType(p);
             const variadicParams = p.variadic && pType.indexOf('|') !== -1;
             return (p.variadic ? "..." : "") +
                 adjustParamName(p.name) +
@@ -1076,9 +1079,6 @@ export function emitWebIDl(webidl: Browser.WebIdl, flavor: Flavor) {
             .forEach(i => emitCallBackInterface(i));
         emitNonCallbackInterfaces();
 
-        // // Add missed interface definition from the spec
-        // InputJson.getAddedItems InputJson.Interface flavor |> Array.iter EmitAddedInterface
-
         printer.printLine("declare type EventListenerOrEventListenerObject = EventListener | EventListenerObject;");
         printer.printLine("");