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Overwriting a SumType's value with a pointer can be @safe so long as the old value is known, at compile time, to be either (a) a non-pointer, or (b) a pointer of the same type as the new value. This change allows such assignments in @safe code, while still forbidding other assignments that overwrite pointers. See also: - https://issues.dlang.org/show_bug.cgi?id=22225 - dlang/phobos#8201 Fixes #67 on Github.
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Overwriting a SumType's value with a pointer can be @safe so long as the
old value is known, at compile time, to be either (a) a non-pointer, or
(b) a pointer of the same type as the new value. This change allows such
assignments in @safe code, while still forbidding other assignments that
overwrite pointers.
See also:
Fixes #67 on Github.