Enum rustc_mir_build::build::LocalsForNode

pub(in build) enum LocalsForNode {
    One(Local),
    ForGuard {
        ref_for_guard: Local,
        for_arm_body: Local,
    },
}

Variants

One(Local)

In the usual case, a HirId for an identifier maps to at most one Local declaration.

ForGuard

The exceptional case is identifiers in a match arm's pattern that are referenced in a guard of that match arm. For these, we have 2 Locals.

• for_arm_body is the Local used in the arm body (which is just like the One case above),

• ref_for_guard is the Local used in the arm's guard (which is a reference to a temp that is an alias of for_arm_body).

Fields of ForGuard

ref_for_guard: Localfor_arm_body: Local

Implementations

impl LocalsForNode

pub(in build) fn local_id(
    &self,
    for_guard: ForGuard
) -> Local

Trait Implementations

impl Debug for LocalsForNode

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

Formats the value using the given formatter.