[Issue 18594] X is not an lvalue should have a better error message

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18594

Tobias Pankrath <tobias at pankrath.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tobias at pankrath.net

--- Comment #5 from Tobias Pankrath <tobias at pankrath.net> ---
---
struct Test(T) {

        @property ref T get() inout { return member; }

private:
   T member;
}


int main(string[] args)
{
   Test!int t;
   t.get = 12;
   return t.get;
}
---

This code has an very similar issue:

> test.d(3): Error: cast(int)this.member is not an lvalue and cannot be modified

The correct definition is:
---
struct Test(T) {

        @property ref inout(T) get() inout { return member; }

private:
   T member;
}
---

but the error message gives no hint in that direction. It confused me quite a
bit, since IMO member is a fine lvalue that happens to be const/inout. 

https://run.dlang.io/is/IJKZ80

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