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Suggest direct raw-pointer dereference #53574

Merged
merged 1 commit into from
Aug 22, 2018
Merged

Suggest direct raw-pointer dereference #53574

merged 1 commit into from
Aug 22, 2018

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vorner
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@vorner vorner commented Aug 21, 2018

People often come looking for some kind of as_ref_unchecked method on
raw pointers that would give them &T and not Option<&T> when they
are sure the pointer is not NULL.

There's no such method, but taking a reference of the dereferenced
pointer accomplishes the same thing. Therefore, suggest using that, at
the as_ref site ‒ it's a place people are likely going to look into.

People often come looking for some kind of `as_ref_unchecked` method on
raw pointers that would give them `&T` and not `Option<&T>` when they
are sure the pointer is not NULL.

There's no such method, but taking a reference of the dereferenced
pointer accomplishes the same thing. Therefore, suggest using that, at
the `as_ref` site ‒ it's a place people are likely going to look into.
@rust-highfive
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r? @Mark-Simulacrum

(rust_highfive has picked a reviewer for you, use r? to override)

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 21, 2018
@Mark-Simulacrum
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@bors r+ rollup

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bors commented Aug 21, 2018

📌 Commit 18f41e5 has been approved by Mark-Simulacrum

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 21, 2018
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request Aug 22, 2018
…-Simulacrum

Suggest direct raw-pointer dereference

People often come looking for some kind of `as_ref_unchecked` method on
raw pointers that would give them `&T` and not `Option<&T>` when they
are sure the pointer is not NULL.

There's no such method, but taking a reference of the dereferenced
pointer accomplishes the same thing. Therefore, suggest using that, at
the `as_ref` site ‒ it's a place people are likely going to look into.
bors added a commit that referenced this pull request Aug 22, 2018
Rollup of 10 pull requests

Successful merges:

 - #53418 (Mark some suggestions as MachineApplicable)
 - #53431 (Moved some feature gate ui tests to correct location)
 - #53442 (Update version of rls-data used with save-analysis)
 - #53504 (Set applicability for more suggestions.)
 - #53541 (Fix missing impl trait display as ret type)
 - #53544 (Point at the trait argument when using unboxed closure)
 - #53558 (Normalize source line and column numbers.)
 - #53562 (Lament the invincibility of the Turbofish)
 - #53574 (Suggest direct raw-pointer dereference)
 - #53585 (Remove super old comment on function that parses items)

Failed merges:

 - #53472 (Use FxHash{Map,Set} instead of the default Hash{Map,Set} everywhere in rustc.)
 - #53563 (use String::new() instead of String::from(""), "".to_string(), "".to_owned() or "".into())

r? @ghost
@bors bors merged commit 18f41e5 into rust-lang:master Aug 22, 2018
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4 participants