1 #![deny(clippy::fallible_impl_from)]
5 impl From<String> for Foo {
6 fn from(s: String) -> Self {
7 Foo(s.parse().unwrap())
11 struct Valid(Vec<u8>);
13 impl<'a> From<&'a str> for Valid {
14 fn from(s: &'a str) -> Valid {
15 Valid(s.to_owned().into_bytes())
18 impl From<usize> for Valid {
19 fn from(i: usize) -> Valid {
20 Valid(Vec::with_capacity(i))
26 impl From<usize> for Invalid {
27 fn from(i: usize) -> Invalid {
35 impl From<Option<String>> for Invalid {
36 fn from(s: Option<String>) -> Invalid {
40 } else if s.parse::<u32>().unwrap() != 42 {
50 impl<T> ProjStrTrait for Box<T> {
51 type ProjString = String;
53 impl<'a> From<&'a mut <Box<u32> as ProjStrTrait>::ProjString> for Invalid {
54 fn from(s: &'a mut <Box<u32> as ProjStrTrait>::ProjString) -> Invalid {
55 if s.parse::<u32>().ok().unwrap() != 42 {
64 impl From<String> for Unreachable {
65 fn from(s: String) -> Unreachable {
69 match s.chars().next() {
70 Some(_) => Unreachable,
71 None => unreachable!(), // do not lint the unreachable macro