https://issues.dlang.org/show_bug.cgi?id=17388
Issue ID: 17388 Summary: [DIP1000] no escape analysis for auto return scope members Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Severity: major Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: per.nord...@gmail.com A file named `test_scope.d` containing @safe pure nothrow @nogc: struct S { @safe pure nothrow @nogc inout(int)[] opSlice() inout return scope { return x[]; } int[4] x; } int[] f() { S s; return s[]; } compiled with -dip1000 correctly errors as test_scope.d(16,13): Error: escaping reference to local variable s but if return type of `opSlice` is changed to `auto` the compiler acccepts it which is wrong. --