File: issue-42234-unknown-receiver-type.generic_arg.stderr

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (27 lines) | stat: -rw-r--r-- 914 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
error[E0282]: type annotations needed
  --> $DIR/issue-42234-unknown-receiver-type.rs:9:24
   |
LL |     let x: Option<_> = None;
   |                        ^^^^ cannot infer type of the type parameter `T` declared on the enum `Option`
LL |     x.unwrap().method_that_could_exist_on_some_type();
   |     ---------- type must be known at this point
   |
help: consider specifying the generic argument
   |
LL |     let x: Option<_> = None::<T>;
   |                            +++++

error[E0282]: type annotations needed
  --> $DIR/issue-42234-unknown-receiver-type.rs:15:10
   |
LL |         .sum::<_>()
   |          ^^^ cannot infer type of the type parameter `S` declared on the method `sum`
   |
help: consider specifying the generic argument
   |
LL |         .sum::<S>()
   |             ~~~~~

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0282`.