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Convert tyvar_behind_raw_pointer to hard error for the 2018 epoch

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This commit is contained in:
Manish Goregaokar 2018-02-05 01:45:43 +05:30
parent 2cff123416
commit d0ab8f03bb
2 changed files with 13 additions and 6 deletions
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18
src/librustc_typeck/check/method/probe.rs
View File

@ -326,13 +326,19 @@ impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> {
if reached_raw_pointer
&& !self.tcx.sess.features.borrow().arbitrary_self_types {
// this case used to be allowed by the compiler,
// so we do a future-compat lint here
// so we do a future-compat lint here for the 2015 epoch
// (see https://github.com/rust-lang/rust/issues/46906)
self.tcx.lint_node(
lint::builtin::TYVAR_BEHIND_RAW_POINTER,
scope_expr_id,
span,
&format!("the type of this value must be known in this context"));
if self.tcx.sess.rust_2018() {
span_err!(self.tcx.sess, span, E0908,
"the type of this value must be known \
to call a method on a raw pointer on it");
} else {
self.tcx.lint_node(
lint::builtin::TYVAR_BEHIND_RAW_POINTER,
scope_expr_id,
span,
&format!("the type of this value must be known in this context"));
}
} else {
let t = self.structurally_resolved_type(span, final_ty);
assert_eq!(t, self.tcx.types.err);

1
src/librustc_typeck/diagnostics.rs
View File

@ -4777,4 +4777,5 @@ register_diagnostics! {
E0641, // cannot cast to/from a pointer with an unknown kind
E0645, // trait aliases not finished
E0907, // type inside generator must be known in this context
E0908, // methods on raw pointers can only be called if the pointer type is fully known
}