Enum ContKind 

pub enum ContKind {
    Pcall,
    Xpcall {
        handler: Value,
    },
    Meta(MetaCont),
    Pairs,
    Close(CloseCont),
}

Continuation kind for yieldable native dispatch.

Variants

Pcall

pcall(f, ...) — wraps the result as (true, ...) / (false, msg).

Xpcall

xpcall: the message handler to run if the protected call errors

Fields

handler: Value

Message handler function invoked on error.

Meta(MetaCont)

a yieldable metamethod call triggered by a VM instruction (PUC’s luaV_finishOp): on the metamethod’s return the interrupted instruction is completed per MetaCont. A coroutine.yield inside the metamethod is preserved on the thread’s frame stack like any other call.

Tuple Fields

0: MetaCont

Continuation describing how to finish the interrupted op.

Pairs

a yieldable __pairs metamethod call from pairs() (PUC luaB_pairs uses lua_callk): on return, its (≤4, nil-padded) results are pairs’s own results. A coroutine.yield inside __pairs is preserved like pcall’s.

Close(CloseCont)

a yieldable __close handler call driven by begin_close (PUC’s luaF_close + lua_callk continuation). On the handler’s return or error, the close iteration resumes from CloseCont’s state and either invokes the next handler (pushing a fresh Cont::Close) or executes the recorded AfterClose action.

Tuple Fields

0: CloseCont

Per-iteration close state.

Trait Implementations

impl Clone for ContKind

fn clone(&self) -> ContKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ContKind