mark std::str::replace(,n) as #[must_use] #50177
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
r? @aidanhs (rust_highfive has picked a reviewer for you, use r? to override) |
rust-highfive
added
the
S-waiting-on-review
|
The same reasoning applies to the |
varkor
reviewed
Apr 23, 2018
src/liballoc/str.rs
Outdated
| @@ -247,6 +247,7 @@ impl str { | |||
| /// assert_eq!(s, s.replacen("cookie monster", "little lamb", 10)); | |||
| /// ``` | |||
| #[stable(feature = "str_replacen", since = "1.16.0")] | |||
| #[must_use] | |||
There was a problem hiding this comment.
Just for consistency, the #[must_use] attribute usually comes before the stability attribute.
There was a problem hiding this comment.
Ok, will update. I'll wait with that + the replace() must_use attr until travis is done, in case this introduces bootstrap compiler warnings.
matthiaskrgr
force-pushed
the
std_std_replacen__must_use
branch
from
5f8bc3c
to
61ced23
Compare
matthiaskrgr
changed the title
matthiaskrgr
commented
Apr 23, 2018
src/liballoc/str.rs
Outdated
| @@ -37,6 +37,7 @@ | |||
| // Many of the usings in this module are only used in the test configuration. | |||
| // It's cleaner to just turn off the unused_imports warning than to fix them. | |||
| #![allow(unused_imports)] | |||
| #![feature(fn_must_use)] | |||
There was a problem hiding this comment.
Hm. I hoped this would get rid of
[00:24:20] warning: `#[must_use]` on methods is experimental (see issue #43302)
[00:24:20] --> liballoc/str.rs:211:5
[00:24:20] |
[00:24:20] 211 | #[must_use]
[00:24:20] | ^^^^^^^^^^^
[00:24:20] |
[00:24:20] = help: add #![feature(fn_must_use)] to the crate attributes to enable
[00:24:20]
[00:24:20] warning: `#[must_use]` on methods is experimental (see issue #43302)
[00:24:20] --> liballoc/str.rs:251:5
[00:24:20] |
[00:24:20] 251 | #[must_use]
[00:24:20] | ^^^^^^^^^^^
[00:24:20] |
[00:24:20] = help: add #![feature(fn_must_use)] to the crate attributes to enable
[00:24:20]
but apparently it does't. What am I doing wrong?
There was a problem hiding this comment.
You need to add #![feature(fn_must_use)] to src/liballoc/lib.rs instead.
matthiaskrgr
force-pushed
the
std_std_replacen__must_use
branch
from
61ced23
to
5d37ba1
Compare
|
@bors r+ |
|
📌 Commit 5d37ba1 has been approved by |
bors
added
S-waiting-on-bors
|
@bors rollup |
|
⌛ Testing commit 5d37ba1 with merge 765cd68743868b2c9568307cf43d5df96dc361e8... |
|
💔 Test failed - status-appveyor |
bors
added
S-waiting-on-review
|
The job Click to expand the log.I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact |
|
@bors: retry
* crates.io was down
…On Tue, Apr 24, 2018 at 8:11 PM, bors ***@***.***> wrote:
💔 Test failed - status-appveyor
<https://ci.appveyor.com/project/rust-lang/rust/build/1.0.7136>
—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub
<#50177 (comment)>, or mute
the thread
<https://github.com/notifications/unsubscribe-auth/AaPN0AlYANhbbvvxrkAIZQiwT2CeHUdlks5tr80kgaJpZM4TfwOv>
.
--
You received this message because you are subscribed to the Google Groups
"rust-ops" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to ***@***.***
To post to this group, send email to ***@***.***
To view this discussion on the web visit https://groups.google.com/d/
msgid/rust-ops/rust-lang/rust/pull/50177/c384128494%40git.luolix.top
<https://groups.google.com/d/msgid/rust-ops/rust-lang/rust/pull/50177/c384128494%40git.luolix.top?utm_medium=email&utm_source=footer>
.
For more options, visit https://groups.google.com/d/optout.
|
|
@nagbot-rs: 🔑 Insufficient privileges: not in try users |
|
@bors: retry |
bors
added
S-waiting-on-bors
GuillaumeGomez
added a commit
to GuillaumeGomez/rust
that referenced
this pull request
Apr 26, 2018
…_use, r=oli-obk
mark std::str::replace(,n) as #[must_use]
let x = "a b c c";
x.replacen("c", "d", 2");
might not do what people might think it does.
|
☔ The latest upstream changes (presumably #50245) made this pull request unmergeable. Please resolve the merge conflicts. |
bors
added
S-waiting-on-author
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
let x = "a b c c";
x.replacen("c", "d", 2");
might not do what people might think it does.