Function std::intrinsics::rustc_peek

pub unsafe extern "rust-intrinsic" fn rustc_peek<T>(T) -> T

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

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

[−] Expand description

Magic intrinsic that derives its meaning from attributes attached to the function.

For example, dataflow uses this to inject static assertions so that rustc_peek(potentially_uninitialized) would actually double-check that dataflow did indeed compute that it is uninitialized at that point in the control flow.