[−][src]Function rustc_mir::hair::pattern::check_match::check_for_mutation_in_guard
fn check_for_mutation_in_guard(cx: &MatchVisitor, guard: &Guard)
🔬 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?
Ensures that a pattern guard doesn't borrow by mutable reference or assign.
FIXME: this should be done by borrowck.