http://d.puremagic.com/issues/show_bug.cgi?id=5826

           Summary: Error: Statement SwitchErrorStatement::toCBuffer()
                    cannot be interpreted at compile time
           Product: D
           Version: D1 & D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: ibuclaw@ubuntu.com


--- Comment #0 from Iain Buclaw <ibuclaw@ubuntu.com> 2011-04-09 12:20:08 PDT ---
From fail_compilation/fail146.d:

int bar(int i)
{
    switch (i)
    {
        case 1:
            i = 4;
            break;
        case 8:
            i = 3;
            break;
    }
    return i;
}

void main()
{
    static b = bar(7);
    printf("b = %d, %d\n", b, bar(7));
    assert(b == 3);
}



Error message:
fail_compilation/fail146.d(4): Error: no default or case for 7 in switch
statement
fail_compilation/fail146.d(4): Error: Statement
SwitchErrorStatement::toCBuffer()
 cannot be interpreted at compile time
fail_compilation/fail146.d(18): Error: cannot evaluate bar(7) at compile time
fail_compilation/fail146.d(18): Error: cannot evaluate bar(7) at compile time
fail_compilation/fail146.d(19): Error: 'printf' is not defined, perhaps you
need to import core.stdc.stdio; ?


For all intent and purposes, this line:

fail_compilation/fail146.d(4): Error: Statement
SwitchErrorStatement::toCBuffer() cannot be interpreted at compile time

Should ideally not be emitted as an error.

Regards

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Iain Buclaw <ibuclaw@ubuntu.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


--- Comment #1 from Iain Buclaw <ibuclaw@ubuntu.com> 2012-08-29 12:46:22 PDT ---
(In reply to comment #0)
> From fail_compilation/fail146.d:
> 
> int bar(int i)
> {
>     switch (i)
>     {
>         case 1:
>             i = 4;
>             break;
>         case 8:
>             i = 3;
>             break;
>     }
>     return i;
> }
> 
> void main()
> {
>     static b = bar(7);
>     printf("b = %d, %d\n", b, bar(7));
>     assert(b == 3);
> }
> 
> 
> 
> Error message:
> fail_compilation/fail146.d(4): Error: no default or case for 7 in switch
> statement
> fail_compilation/fail146.d(4): Error: Statement
> SwitchErrorStatement::toCBuffer()
>  cannot be interpreted at compile time
> fail_compilation/fail146.d(18): Error: cannot evaluate bar(7) at compile time
> fail_compilation/fail146.d(18): Error: cannot evaluate bar(7) at compile time
> fail_compilation/fail146.d(19): Error: 'printf' is not defined, perhaps you
> need to import core.stdc.stdio; ?
> 
> 
> For all intent and purposes, this line:
> 
> fail_compilation/fail146.d(4): Error: Statement
> SwitchErrorStatement::toCBuffer() cannot be interpreted at compile time
> 
> Should ideally not be emitted as an error.
> 
> Regards


Error message is now:
test.d:3: Error: non-final switch statement without a default is deprecated
test.d:17: Error: CTFE failed because of previous errors in bar
test.d:18: Error: 'printf' is not defined, perhaps you need to import
core.stdc.stdio; ?



Interestingly, fail146.d has been removed from the testsuite, why is this?

Marking as resolved anyway...

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Brad Roberts <braddr@puremagic.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |braddr@puremagic.com


--- Comment #2 from Brad Roberts <braddr@puremagic.com> 2012-08-30 15:39:17 PDT ---
I was curious, so I went to find the reason:

https://github.com/D-Programming-Language/dmd/commit/d530bf60e34bb01932d5656c6a1b392beac6e5d2

Found via looking at the history for the file:

https://github.com/D-Programming-Language/dmd/commits/master/test/fail_compilation/fail146.d

also doable through the git cli: git log test/fail_compilation/fail146.d

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