parse_generic_bound: leave a FIXME

Centril · Centril · commit 1cfeb567735a · 2019-12-21T19:20:41.000+01:00
diff --git a/src/librustc_parse/parser/ty.rs b/src/librustc_parse/parser/ty.rs
@@ -448,6 +448,8 @@ impl<'a> Parser<'a> {
             self.error_opt_out_lifetime(question);
             let bound = GenericBound::Outlives(self.expect_lifetime());
             if has_parens {
+                // FIXME(Centril): Consider not erroring here and accepting `('lt)` instead,
+                // possibly introducing `GenericBound::Paren(P<GenericBound>)`?
                 self.recover_paren_lifetime(lo, inner_lo)?;
             }
             Ok(Ok(bound))

Original file line number	Diff line number	Diff line change
`@@ -448,6 +448,8 @@ impl<'a> Parser<'a> {`
`448`	`448`	`self.error_opt_out_lifetime(question);`
`449`	`449`	`let bound = GenericBound::Outlives(self.expect_lifetime());`
`450`	`450`	`if has_parens {`
	`451`	+ // FIXME(Centril): Consider not erroring here and accepting `('lt)` instead,
	`452`	+ // possibly introducing `GenericBound::Paren(P<GenericBound>)`?
`451`	`453`	`self.recover_paren_lifetime(lo, inner_lo)?;`
`452`	`454`	`}`
`453`	`455`	`Ok(Ok(bound))`