commit b547ece92fc85497947fdb1b113aa5a387a3d313
parent fdee4dd5016aadf5bf44f42b8bb1cad5f40f5672
Author: Nick Mathewson <nickm@torproject.org>
Date: Wed, 3 Apr 2019 08:32:21 -0400
Merge branch 'pr_883_squashed'
Diffstat:
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/doc/HACKING/CodingStandardsRust.md b/doc/HACKING/CodingStandardsRust.md
@@ -256,7 +256,7 @@ Here are some additional bits of advice and rules:
or 2) should fail (i.e. in a unittest).
You SHOULD NOT use `unwrap()` anywhere in which it is possible to handle the
- potential error with either `expect()` or the eel operator, `?`.
+ potential error with the eel operator, `?` or another non panicking way.
For example, consider a function which parses a string into an integer:
fn parse_port_number(config_string: &str) -> u16 {
@@ -264,12 +264,12 @@ Here are some additional bits of advice and rules:
}
There are numerous ways this can fail, and the `unwrap()` will cause the
- whole program to byte the dust! Instead, either you SHOULD use `expect()`
+ whole program to byte the dust! Instead, either you SHOULD use `ok()`
(or another equivalent function which will return an `Option` or a `Result`)
and change the return type to be compatible:
fn parse_port_number(config_string: &str) -> Option<u16> {
- u16::from_str_radix(config_string, 10).expect("Couldn't parse port into a u16")
+ u16::from_str_radix(config_string, 10).ok()
}
or you SHOULD use `or()` (or another similar method):