Function cove_debug 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn cove_debug(
    source: *const u8,
    len: usize,
    fuel: u32,
    deadline_ms: u32,
    moments: u32,
) -> *mut u8

Checks, lowers and runs source under a recording debugger, and answers what cove_run answers plus the recording. See crate::debug_json.

fuel and deadline_ms are cove_run’s, meaning the same things. A debugged run is slower than a run — the machine asks the recorder before every instruction — so a program that finished inside the default deadline may not finish inside it here. That is reported as a deadline outcome beside the recording of everything up to it, which is the honest answer and not a silent one.

moments is how many moments to keep, with zero meaning crate::record::MOMENTS and anything larger than crate::record::MOST_MOMENTS clamped to it. It is a u32 for cove_run’s reason: a u64 parameter reaches JavaScript as a BigInt.

Safety

As cove_compile.