Bug 39153 - return wrong value if async/await used in finally block
Summary: return wrong value if async/await used in finally block
Status: RESOLVED FIXED
Alias: None
Product: Compilers
Classification: Mono
Component: C# ()
Version: unspecified
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Marek Safar
URL:
Depends on:
Blocks:
 
Reported: 2016-02-26 07:37 UTC by heebaek choi
Modified: 2016-03-05 10:35 UTC (History)
3 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description heebaek choi 2016-02-26 07:37:37 UTC
i know, await in finally block is new feature of c# 6.0 but i think xamarin may not support well.

 public async Task<bool> Test(bool TrueOrFalse)
        {
            if (TrueOrFalse)
                return true;
            try
            {
                return true;
            }
            finally
            {
                await Task.Delay(100);
            }
        }

this "Test" function have to return true, but if you run this code, it returns false(default value of bool, if you test other types, it returns default value of that type) 

if i remove await in finally block, this function works well...return true.

repro step is very simple.
just create new android solution and link test button to call this function and watch result...

i spent lots of time cause of this bug...Please fix this bug.
Comment 1 Marek Safar 2016-03-05 10:35:17 UTC
Fixed in master and Mono 4.4