Wrap static methods in a function wrapper so the node io namespace routing works. (tensorflow#1507)

BUG

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Author: Nikhil Thorat

src/io/io.ts

@@ -24,17 +24,11 @@ import {browserFiles} from './browser_files';
 import {browserHTTPRequest, isHTTPScheme} from './browser_http';
 import {concatenateArrayBuffers, decodeWeights, encodeWeights, getModelArtifactsInfoForJSON} from './io_utils';
 import {fromMemory, withSaveHandler} from './passthrough';
-import {IORouterRegistry} from './router_registry';
+import {getLoadHandlers, getSaveHandlers, registerLoadRouter, registerSaveRouter} from './router_registry';
 import {IOHandler, LoadHandler, ModelArtifacts, ModelStoreManager, SaveConfig, SaveHandler, SaveResult, WeightsManifestConfig, WeightsManifestEntry} from './types';
 import {loadWeights, weightsLoaderFactory} from './weights_loader';
 
-const registerSaveRouter = IORouterRegistry.registerSaveRouter;
-const registerLoadRouter = IORouterRegistry.registerLoadRouter;
-const getSaveHandlers = IORouterRegistry.getSaveHandlers;
-const getLoadHandlers = IORouterRegistry.getLoadHandlers;
-
 export {copyModel, listModels, moveModel, removeModel} from './model_management';
-
 export {
   browserFiles,
   browserHTTPRequest,
@@ -56,8 +50,8 @@ export {
   SaveConfig,
   SaveHandler,
   SaveResult,
+  weightsLoaderFactory,
   WeightsManifestConfig,
   WeightsManifestEntry,
-  weightsLoaderFactory,
   withSaveHandler
 };

src/io/router_registry.ts

@@ -17,7 +17,8 @@
 
 import {IOHandler} from './types';
 
-export type IORouter = (url: string|string[], onProgress?: Function) => IOHandler;
+export type IORouter = (url: string|string[], onProgress?: Function) =>
+    IOHandler;
 
 export class IORouterRegistry {
   // Singleton instance.
@@ -79,13 +80,14 @@ export class IORouterRegistry {
    * @returns All valid handlers for `url`, given the currently registered
    *   handler routers.
    */
-  static getLoadHandlers(url: string|string[],
-                         onProgress?: Function): IOHandler[] {
+  static getLoadHandlers(url: string|string[], onProgress?: Function):
+      IOHandler[] {
     return IORouterRegistry.getHandlers(url, 'load', onProgress);
   }
 
-  private static getHandlers(url: string|string[], handlerType: 'save'|'load',
-                             onProgress?: Function): IOHandler[] {
+  private static getHandlers(
+      url: string|string[], handlerType: 'save'|'load',
+      onProgress?: Function): IOHandler[] {
     const validHandlers: IOHandler[] = [];
     const routers = handlerType === 'load' ? this.getInstance().loadRouters :
                                              this.getInstance().saveRouters;
@@ -98,3 +100,12 @@ export class IORouterRegistry {
     return validHandlers;
   }
 }
+
+export const registerSaveRouter = (loudRouter: IORouter) =>
+    IORouterRegistry.registerSaveRouter(loudRouter);
+export const registerLoadRouter = (loudRouter: IORouter) =>
+    IORouterRegistry.registerLoadRouter(loudRouter);
+export const getSaveHandlers = (url: string|string[]) =>
+    IORouterRegistry.getSaveHandlers(url);
+export const getLoadHandlers = (url: string|string[], onProgress?: Function) =>
+    IORouterRegistry.getLoadHandlers(url);