[Issue 2954] [tdpl] Allow to set associative array key value only using expression AA key type is constructable from

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=2954

Stanislav Blinov <stanislav.blinov at gmail.com> changed:

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--- Comment #13 from Stanislav Blinov <stanislav.blinov at gmail.com> ---
Bump.

A user in Learn recently ran into this (even though the thread itself is about
a different question):
https://forum.dlang.org/thread/mailman.4778.1541282050.29801.digitalmars-d-learn@puremagic.com

The AA's indexing operations should:

1) If the key type is a pointer or a class instance, only accept pointers to
immutable and immutable references respectively.
2) If the key type is an array, accept non-immutable arrays, but .idup them if
the operation results in insertion (i.e. [], require(), update())

Side observation: what is this 'blocker' bug blocking, exactly? It's
approaching it's 10th birthday...

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