3 files changed, 18 insertions, 18 deletions
diff --git a/src/new_fields/Doc.ts b/src/new_fields/Doc.ts
index 60abccce6..5ae095e68 100644
--- a/src/new_fields/Doc.ts
+++ b/src/new_fields/Doc.ts
@@ -33,8 +33,8 @@ export class ObjectField {
 
 export type Field = number | string | boolean | ObjectField | RefField;
 export type Opt<T> = T | undefined;
-export type FieldWaiting<T extends Field = Field> = Promise<T | undefined>;
-export type FieldResult<T extends Field = Field> = Opt<T> | FieldWaiting<T>;
+export type FieldWaiting<T extends RefField = RefField> = T extends undefined ? never : Promise<T | undefined>;
+export type FieldResult<T extends Field = Field> = Opt<T> | FieldWaiting<Extract<T, RefField>>;
 
 export const Self = Symbol("Self");
 
@@ -58,7 +58,8 @@ export class Doc extends RefField {
 
     @serializable(alias("fields", map(autoObject())))
     @observable
-    private __fields: { [key: string]: Field | FieldWaiting | undefined } = {};
+    //{ [key: string]: Field | FieldWaiting | undefined }
+    private __fields: any = {};
 
     private [Update] = (diff: any) => {
         DocServer.UpdateField(this[Id], diff);
@@ -86,7 +87,7 @@ export namespace Doc {
         return Cast(Get(doc, key, ignoreProto), ctor) as T | null | undefined;
     }
     export async function SetOnPrototype(doc: Doc, key: string, value: Field) {
-        const proto = await Cast(doc.prototype, Doc);
+        const proto = await Cast(doc.proto, Doc);
         if (proto) {
             proto[key] = value;
         }
@@ -97,7 +98,7 @@ export namespace Doc {
         }
         const delegate = new Doc();
         //TODO Does this need to be doc[Self]?
-        delegate.prototype = doc;
+        delegate.proto = doc;
         return delegate;
     }
     export const Prototype = Symbol("Prototype");
diff --git a/src/new_fields/Schema.ts b/src/new_fields/Schema.ts
index 59c6db0bd..5081521c7 100644
--- a/src/new_fields/Schema.ts
+++ b/src/new_fields/Schema.ts
@@ -1,7 +1,5 @@
 import { Interface, ToInterface, Cast, ToConstructor, HasTail, Head, Tail, ListSpec, ToType } from "./Types";
-import { Doc, Field, ObjectField } from "./Doc";
-import { URLField } from "./URLField";
-import { List } from "./List";
+import { Doc, Field } from "./Doc";
 
 type AllToInterface<T extends Interface[]> = {
     1: ToInterface<Head<T>> & AllToInterface<Tail<T>>,
@@ -15,7 +13,7 @@ export type Document = makeInterface<[typeof emptySchema]>;
 export type makeInterface<T extends Interface[]> = Partial<AllToInterface<T>> & Doc;
 // export function makeInterface<T extends Interface[], U extends Doc>(schemas: T): (doc: U) => All<T, U>;
 // export function makeInterface<T extends Interface, U extends Doc>(schema: T): (doc: U) => makeInterface<T, U>; 
-export function makeInterface<T extends Interface[]>(...schemas: T): (doc: Doc) => makeInterface<T> {
+export function makeInterface<T extends Interface[]>(...schemas: T): (doc?: Doc) => makeInterface<T> {
     let schema: Interface = {};
     for (const s of schemas) {
         for (const key in s) {
@@ -35,7 +33,8 @@ export function makeInterface<T extends Interface[]>(...schemas: T): (doc: Doc)
             return true;
         }
     });
-    return function (doc: Doc) {
+    return function (doc?: Doc) {
+        doc = doc || new Doc;
         if (!(doc instanceof Doc)) {
             throw new Error("Currently wrapping a schema in another schema isn't supported");
         }
@@ -73,8 +72,8 @@ export function makeStrictInterface<T extends Interface>(schema: T): (doc: Doc)
     };
 }
 
-export function createSchema<T extends Interface>(schema: T): T & { prototype: ToConstructor<Doc> } {
-    schema.prototype = Doc;
+export function createSchema<T extends Interface>(schema: T): T & { proto: ToConstructor<Doc> } {
+    schema.proto = Doc;
     return schema as any;
 }
 
diff --git a/src/new_fields/Types.ts b/src/new_fields/Types.ts
index fbf002c84..246b0624e 100644
--- a/src/new_fields/Types.ts
+++ b/src/new_fields/Types.ts
@@ -1,4 +1,4 @@
-import { Field, Opt, FieldWaiting, FieldResult } from "./Doc";
+import { Field, Opt, FieldWaiting, FieldResult, RefField } from "./Doc";
 import { List } from "./List";
 
 export type ToType<T extends ToConstructor<Field> | ListSpec<Field>> =
@@ -18,7 +18,7 @@ export type ToConstructor<T extends Field> =
     new (...args: any[]) => T;
 
 export type ToInterface<T extends Interface> = {
-    [P in keyof T]: ToType<T[P]>;
+    [P in keyof T]: FieldResult<ToType<T[P]>>;
 };
 
 // type ListSpec<T extends Field[]> = { List: ToContructor<Head<T>> | ListSpec<Tail<T>> };
@@ -37,11 +37,11 @@ export interface Interface {
     // [key: string]: ToConstructor<Field> | ListSpec<Field[]>;
 }
 
-export function Cast<T extends ToConstructor<Field> | ListSpec<Field>>(field: Field | FieldWaiting | undefined, ctor: T): FieldResult<ToType<T>>;
-export function Cast<T extends ToConstructor<Field> | ListSpec<Field>>(field: Field | FieldWaiting | undefined, ctor: T, defaultVal: ToType<T>): ToType<T>;
-export function Cast<T extends ToConstructor<Field> | ListSpec<Field>>(field: Field | FieldWaiting | undefined, ctor: T, defaultVal?: ToType<T>): FieldResult<ToType<T>> | undefined {
+export function Cast<T extends ToConstructor<Field> | ListSpec<Field>>(field: FieldResult, ctor: T): FieldResult<ToType<T>>;
+export function Cast<T extends ToConstructor<Field> | ListSpec<Field>>(field: FieldResult, ctor: T, defaultVal: ToType<T>): ToType<T>;
+export function Cast<T extends ToConstructor<Field> | ListSpec<Field>>(field: FieldResult, ctor: T, defaultVal?: ToType<T>): FieldResult<ToType<T>> | undefined {
     if (field instanceof Promise) {
-        return defaultVal === undefined ? field.then(f => Cast(f, ctor) as any) : defaultVal;
+        return defaultVal === undefined ? field.then(f => Cast(f, ctor) as any) as any : defaultVal;
     }
     if (field !== undefined && !(field instanceof Promise)) {
         if (typeof ctor === "string") {