implement raw pointer comparisons in librustc #9136
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This is mostly for consistency, as you can now compare raw pointers in constant expressions or without the standard library. It also reduces the number of `ptrtoint` instructions in the IR, making tracking down culprits of what's usually an anti-pattern easier.
bors
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Sep 12, 2013
This is mostly for consistency, as you can now compare raw pointers in constant expressions or without the standard library. It also reduces the number of `ptrtoint` instructions in the IR, making tracking down culprits of what's usually an anti-pattern easier.
Jarcho
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Aug 29, 2022
…rcho
Enhance `needless_borrow` to consider trait implementations
The proposed enhancement causes `needless_borrow` to suggest removing `&` from `&e` when `&e` is an argument position requiring trait implementations, and `e` implements the required traits. Example:
```
error: the borrowed expression implements the required traits
--> $DIR/needless_borrow.rs:131:51
|
LL | let _ = std::process::Command::new("ls").args(&["-a", "-l"]).status().unwrap();
| ^^^^^^^^^^^^^ help: change this to: `["-a", "-l"]`
```
r? `@Jarcho`
changelog: Enhance `needless_borrow` to consider trait implementations
flip1995
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Oct 20, 2022
…ow, r=Jarcho Further enhance `needless_borrow`, mildly refactor `redundant_clone` This PR does the following: * Moves some code from `redundant_clone` into a new `clippy_utils` module called `mir`, and wraps that code in a function called `dropped_without_further_use`. * Relaxes the "is copyable" condition condition from rust-lang#9136 by also suggesting to remove borrows from values dropped without further use. The changes involve the just mentioned function. * Separates `redundant_clone` into modules. Strictly speaking, the last bullet is independent of the others. `redundant_clone` is somewhat hairy, IMO. Separating it into modules makes it slightly less so, by helping to delineate what depends upon what. I've tried to break everything up into digestible commits. r? `@Jarcho` (`@Jarcho` I hope you don't mind.) changelog: continuation of rust-lang#9136
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This is mostly for consistency, as you can now compare raw pointers in
constant expressions or without the standard library.
It also reduces the number of
ptrtointinstructions in the IR, makingtracking down culprits of what's usually an anti-pattern easier.