www.digitalmars.com         C & C++   DMDScript  

digitalmars.D.bugs - [Issue 8094] New: Static if matching using alias parameter in template fails

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8094

           Summary: Static if matching using alias parameter in template
                    fails
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: simen.kjaras gmail.com



PDT ---
template getParameters( T, alias P ) {
    static if ( is( T t == P!U, U... ) ) {
        alias U getParameters;
    } else {
        static assert( false );
    }
}

void main( ) {
    alias getParameters!( Tuple!(int, string), Tuple ) args;
}

This asserts. Replace T t == P!U, U... with T t == Tuple!U, U..., and it works.
(but of course then the intended functionality does not work)

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
May 14 2012
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8094




Commits pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/f61519bdae25f78fbeb355a8b732c8a54bb5cef0
fix Issue 8094 - Static if matching using alias parameter in template fails

https://github.com/D-Programming-Language/dmd/commit/23bb1acdadaaa5b711974c5a144829b510d6f655


Issue 8094 - Static if matching using alias parameter in template fails

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
May 14 2012
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8094


Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla digitalmars.com
         Resolution|                            |FIXED


-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
May 14 2012