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Remove error about obsolete dereferencing of newtype structs.

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A built-in feature enabling the dereferencing of newtype structs was removed
in PR #11188, and this error (E0068) was added at the same time to warn of
its removal. It seems to make sense to remove the error now, given that
the obsolete feature it is warning about was removed nearly a year and a
half ago.
This commit is contained in:
Nick Hamann 2015-05-17 01:12:11 -05:00
parent 4f83c4b851
commit f47cb0ecfb
1 changed files with 4 additions and 20 deletions
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24
src/librustc_typeck/check/mod.rs
View File

@ -3153,26 +3153,10 @@ fn check_expr_with_unifier<'a, 'tcx, F>(fcx: &FnCtxt<'a, 'tcx>,
Some(&**oprnd), oprnd_t, lvalue_pref) {
Some(mt) => mt.ty,
None => {
let is_newtype = match oprnd_t.sty {
ty::ty_struct(did, substs) => {
let fields = ty::struct_fields(fcx.tcx(), did, substs);
fields.len() == 1
&& fields[0].name ==
token::special_idents::unnamed_field.name
}
_ => false
};
if is_newtype {
// This is an obsolete struct deref
span_err!(tcx.sess, expr.span, E0068,
"single-field tuple-structs can \
no longer be dereferenced");
} else {
fcx.type_error_message(expr.span, |actual| {
format!("type `{}` cannot be \
dereferenced", actual)
}, oprnd_t, None);
}
fcx.type_error_message(expr.span, |actual| {
format!("type `{}` cannot be \
dereferenced", actual)
}, oprnd_t, None);
tcx.types.err
}
}