fix(File): only catch User.current() exception in React Native (#335)

Author: leeyeh

src/file.js

@@ -355,8 +355,12 @@ module.exports = function(AV) {
     } else if (!AV._config.disableCurrentUser) {
       try {
         owner = AV.User.current();
-      } catch (e) {
-        console.warn('Get current user failed. It seems this runtime use an async storage system, please new AV.File in the callback of AV.User.currentAsync().');
+      } catch (error) {
+        if ('SYNC_API_NOT_AVAILABLE' === error.code) {
+          console.warn('Get current user failed. It seems this runtime use an async storage system, please create AV.File in the callback of AV.User.currentAsync().');
+        } else {
+          throw error;
+        }
       }
     }
 

src/localstorage.js

@@ -29,7 +29,9 @@ if (!localStorage.async) {
   _(syncApiNames).each(function(apiName) {
     if (typeof localStorage[apiName] !== 'function') {
       localStorage[apiName] = function() {
-        throw new Error('Synchronous API [' + apiName + '] is not available in this runtime.');
+        const error = new Error('Synchronous API [' + apiName + '] is not available in this runtime.');
+        error.code = 'SYNC_API_NOT_AVAILABLE';
+        throw error;
       };
     }
   });