USING: accessors debugger kernel system tools.test vocabs vocabs.parser ; IN: vocabs.metadata : wrong-platform-vocab-name ( -- name ) os windows? "unix" "windows" ? ; [ [ wrong-platform-vocab-name use-vocab ] [ error>> unsupported-platform? ] must-fail-with ! Factor remembers that we tried to load the wrong vocab ! and this breaks f2 until we forget the vocab. ! See issue #1463. [ wrong-platform-vocab-name forget-vocab ] try ] with-manifest