[Issue 18644] [dip1000] escape of outer local not detected

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18644

Jonathan M Davis <issues.dlang at jmdavisProg.com> changed:

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--- Comment #1 from Jonathan M Davis <issues.dlang at jmdavisProg.com> ---
Shouldn't the error be that

    int* foo() { return &i; }

is trying to convert scope int* to int* in @safe code? Unless foo isn't
inferred as @safe in spite of it being declared in an @safe function, but if
that's the case, then calling foo should be an error, since otherwise, an @safe
function would be calling an @system function without @trusted being involved.
Certainly, given the fact that foo() returns int*, I don't see how

    int*[] b = [foo()]; // should detect error

is invalid. It's only dealing with int*. So, there's no escaping as far is that
bit of code is concerned.

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