Tomas Hajny via fpc-devel <fpc-devel@lists.freepascal.org> schrieb am Fr., 18. Dez. 2020, 11:38:
> On 2020-12-18 10:01, Blaise--- via fpc-devel wrote: > > > Hello, > > > The patch http://hg.blaise.ru/public/fpc/rev/698389953e49 (attached) > > fixes the following: > > -------8<------- > > // EXPECTED: 'Error: Illegal function result type' > > // ACTUAL: gets compiled > > type M = function : file; > > > > begin > > end. > > -------8<------- > > Sorry for a silly question, but conceptually - why a file (which is > technically a record) shouldn't be allowed if records are allowed and > the result (i.e. the file) may be assigned to another variable of the > type file? Do you have any information why the compiled functionality > wouldn't work correctly? > Because TP and Delphi don't allow it either. In fact FPC doesn't allow it as well for function declarations, but for function and method variables a different code path is used. Sidenote: it also isn't allowed to pass file type parameters by value (the compiler checks this) which is why you always see them with "var" or "const". Regards, Sven >
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