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digitalmars.D.bugs - [Issue 17145] New: Tuple expansion does not work in local enum


          Issue ID: 17145
           Summary: Tuple expansion does not work in local enum
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Keywords: CTFE, rejects-valid
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: epi atari8.info

import std.typecons : tuple;

enum foo = tuple(1, 2).expand; // Compiles up to 2.071.2 and with PR #6517
pragma(msg, typeof(foo).stringof);
pragma(msg, foo.stringof);

void bar()
    auto roo = tuple(1, 2).expand; // OK
    pragma(msg, typeof(roo).stringof);
    pragma(msg, roo.stringof);

void baz()
    enum zoo = tuple(1, 2).expand; // Error: value of __tup1847 is not known at
compile time
    pragma(msg, typeof(zoo).stringof);
    pragma(msg, zoo.stringof);

Feb 04 2017