commit d90963ecf5d0fc490cb51c676c58d766d06ea3b5
author wqyfavor <qianyuan.wqy@alibaba-inc.com> Tue Dec 17 13:59:02 2019 +0800
committer GitHub <noreply@github.com> Tue Dec 17 13:59:02 2019 +0800
tree a20356a19ed60ae89a60af7d9a678c541897c60e
parent 4f73e51f747ce80a91ef1a2c17bc57beb0da891d
parent 057cc79a5d53ed54a22ca1236c374c1442ecd75c

Merge pull request #3086 from sunshl/Jiakui/bugfix_191217_crashfix

[iOS] fix uncaught exception when nan value passed from front end

ios/sdk/WeexSDK/Sources/Manager/WXComponentManager.mm

diff --git a/ios/sdk/WeexSDK/Sources/Manager/WXComponentManager.mm b/ios/sdk/WeexSDK/Sources/Manager/WXComponentManager.mm
index 6fa35be..0a86a77 100644
--- a/ios/sdk/WeexSDK/Sources/Manager/WXComponentManager.mm
+++ b/ios/sdk/WeexSDK/Sources/Manager/WXComponentManager.mm
@@ -70,6 +70,7 @@
 
 #define WXAssertComponentExist(component)  WXAssert(component, @"component not exists")
 #define MAX_DROP_FRAME_FOR_BATCH   200
+#define SYNC_UI_EXCEPTION_LOG_INTERVAL 1000
 
 @interface WXComponentManager () <WXDisplayLinkClient>
 @end
@@ -1146,7 +1147,15 @@
         if (blocks.count) {
             dispatch_async(dispatch_get_main_queue(), ^{
                 for(dispatch_block_t block in blocks) {
-                    block();
+                    @try {
+                        block();
+                    } @catch (NSException *exception) {
+                        static NSInteger sCatchCount = 0;
+                        if (++sCatchCount % SYNC_UI_EXCEPTION_LOG_INTERVAL == 1) {
+                            // log for the first time and control interval
+                            WXLogError(@"SyncUI Exception:%@", exception);
+                        }
+                    }
                 }
             });
         }