Enum rustc_resolve::Used

pub(crate) enum Used {
    Scope,
    Other,
}

Used for tracking import use types which will be used for redundant import checking.

Used::Scope Example

#![deny(unused_imports)]
use std::mem::drop;
fn main() {
   let s = Box::new(32);
   drop(s);
}

Used::Other is for other situations like module-relative uses.

Variants

Scope

Other

Trait Implementations

impl Clone for Used

fn clone(&self) -> Used

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Used

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Used

fn eq(&self, other: &Used) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Used

fn partial_cmp(&self, other: &Used) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Used

impl StructuralPartialEq for Used

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• Scope: 0 bytes
• Other: 0 bytes