[Issue 22977] [dip1000] can escape scope pointer returned by nested function

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=22977

--- Comment #3 from Walter Bright <bugzi...@digitalmars.com> ---
Interestingly, if `scope return` is added to `fn()`:

 int* gPtr;

 void main() @safe
 {
    scope int* sPtr;
    int* fn() scope return { return sPtr; }
    gPtr = fn();
 }

The correct error is generated:

 Error: reference to stack allocated value returned by `fn()` assigned to
non-scope `gPtr`

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