Bug 28022 - Mono C# compiler incorrectly emits error CS0053 when using protected internal members in a derived class that is nested inside another class
Summary: Mono C# compiler incorrectly emits error CS0053 when using protected internal...
Alias: None
Product: Compilers
Classification: Mono
Component: C# ()
Version: unspecified
Hardware: All All
: --- normal
Target Milestone: ---
Assignee: Marek Safar
Depends on:
Reported: 2015-03-13 17:04 UTC by emoriarty
Modified: 2015-04-03 12:12 UTC (History)
2 users (show)

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

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Description emoriarty 2015-03-13 17:04:34 UTC
The mono C# compiler incorrectly emits CS0053 when using protected internal members inside a derived class that is nested inside another class.

$ cat Test.cs 
public class A
    protected internal struct C { }
class B
    class D : A
        public A.C Property { get; set; }

$ mcs --version 
Mono C# compiler version

$ mcs /t:library Test.cs 
Test.cs(9,20): error CS0053: Inconsistent accessibility: property type `A.C' is less accessible than property `B.D.Property'
Test.cs(3,30): (Location of the symbol related to previous error)
Compilation failed: 1 error(s), 0 warnings

$ csc /t:library Test.cs
Microsoft (R) Visual C# Compiler version 4.0.30319.18408
for Microsoft (R) .NET Framework 4.5
Copyright (C) Microsoft Corporation. All rights reserved.

Edward Moriarty | Junior Engineer
Coverity | The Leader in Development Testing
Comment 1 Marek Safar 2015-04-03 12:12:59 UTC
Fixed in master