Bug 12583 - Mono MCS does not consider constants declared within a switch to be in scope for case values
Summary: Mono MCS does not consider constants declared within a switch to be in scope ...
Status: RESOLVED FIXED
Alias: None
Product: Compilers
Classification: Mono
Component: C# ()
Version: unspecified
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Marek Safar
URL:
Depends on:
Blocks:
 
Reported: 2013-06-06 14:16 UTC by Brett van Swelm
Modified: 2013-06-07 12:41 UTC (History)
1 user (show)

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

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Status:
RESOLVED FIXED

Description Brett van Swelm 2013-06-06 14:16:42 UTC
Mono MCS does not consider constants declared within a switch to be in scope for case values.

With "D:\Applications\Mono-2.11.4\bin" and "C:\Windows\Microsoft.NET\Framework\v4.0.30319" in the path on my Windows 7 machine:

===== Test.cs =====
class Test {
    void test1() {
        var s = "Nice";
        switch (s) {
            case "HI":
                const string x = "Nice";
                break;
            case x:
                break;
        }
    }

    public const string xx = "Not";
    public void test2() {
        var s = "Nice";
        switch (s) {
            case "HI":
                const string xx = "Nice";
                break;
            case xx:
                break;
        }
    }
}
===== end =====

$ csc /target:library Test.cs
Microsoft (R) Visual C# Compiler version 4.0.30319.17929
for Microsoft (R) .NET Framework 4.5
Copyright (C) Microsoft Corporation. All rights reserved.

$ mcs /target:library Test.cs
Test.cs(8,18): error CS0103: The name `x' does not exist in the current context
Test.cs(8,13): error CS0150: A constant value is expected
Test.cs(20,18): error CS0135: `xx' conflicts with a declaration in a child block
Test.cs(18,30): (Location of the symbol related to previous error)
Compilation failed: 3 error(s), 0 warnings

Thanks,

Brett van Swelm | Senior Engineer
Coverity | 185 Berry Street | Suite 6500, Lobby 3 | San Francisco, CA 94107
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Comment 1 Marek Safar 2013-06-07 12:41:11 UTC
Fixed in master