Enum rustc_mir::build::ForGuard

enum ForGuard {
    ValWithinGuard(usize),
    RefWithinGuard,
    OutsideGuard,
}

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

ForGuard indicates whether we are talking about:

1. the temp for a local binding used solely within guard expressions,
2. the temp that holds reference to (1.), which is actually what the guard expressions see, or
3. the temp for use outside of guard expressions.

Variants

ValWithinGuard(usize)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

The usize identifies for which candidate pattern we want the local binding. We keep a temp per-candidate to accommodate two-phase borrows (see LocalsForNode documentation).

RefWithinGuard

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

OutsideGuard

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Trait Implementations

impl Copy for ForGuard

impl Clone for ForGuard

fn clone(&self) -> ForGuard

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ForGuard

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

Formats the value using the given formatter.

impl PartialEq for ForGuard

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

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

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

This method tests for !=.

impl Eq for ForGuard

fn assert_receiver_is_total_eq(&self)