[Issue 9580] std.variant.Algebraic with Tuple format problem

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=9580



--- Comment #3 from bearophile_hugs at eml.cc 2013-12-27 04:15:08 PST ---
Sorry, the code in comment2 is wrong. This should be better:


import std.variant: Algebraic, This;
import std.typecons: Tuple, tuple;
alias Foo = Algebraic!(int, Tuple!(This[]));
void main() {
    auto f = Foo(tuple([Foo(0)]));
}


The error messages:

...\dmd2\src\phobos\std\variant.d(548): Error: static assert  "Cannot store a
Tuple!(VariantN!(8u, int, Tuple!(This[]))[]) in a VariantN!(8u, int,
Tuple!(This[]))"
temp.d(5):        instantiated from here: __ctor!(Tuple!(VariantN!(8u, int,
Tuple!(This[]))[]))

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