This program looks correct:


import std.typecons: Rebindable;
const class Foo {}
pure nothrow void bar() {
    Rebindable!Foo f = new Foo;
}
void main() {}


But DMD 2.050 shows the errors:

test.d(4): Error: pure function 'bar' cannot call impure function 'this'
test.d(3): Error: function test3.bar 'bar' is nothrow yet may throw


(I don't know if this is possible in all cases, like when Rebindable is used on a struct with a nonpure postblit. But with class references I think this is possible).