Struct HostFnRegistry 

pub struct HostFnRegistry { /* private fields */ }

Phase 0b host-fn registry: import_idx -> Arc<dyn RelonFunction>.

Mirrors the host_fns half of the cranelift backend’s CapabilityVtable. The LLVM evaluator owns one of these (built via [Self::with_host_fns]) and points each per-call [ArenaState] at it through [ArenaState::install_host_fns]; a source-lowered Op::CallNative then resolves the import_idx-keyed callable via [relon_llvm_call_native].

Keying off import_idx (the IR-side private namespace) keeps it distinct from the capability-bit namespace the Op::CheckCap gate consumes — exactly the cranelift split.

Implementations

impl HostFnRegistry

pub fn new() -> Self

Build an empty registry.

pub fn register(&mut self, import_idx: u32, func: Arc<dyn RelonFunction>)

Register a callable at import_idx. Overwrites any prior entry.

pub fn resolve(&self, import_idx: u32) -> Option<&Arc<dyn RelonFunction>>

Resolve the callable registered at import_idx.

pub fn len(&self) -> usize

Number of registered host fns.

pub fn is_empty(&self) -> bool

true when no host fns are registered.

Trait Implementations

impl Clone for HostFnRegistry

fn clone(&self) -> HostFnRegistry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HostFnRegistry

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

Formats the value using the given formatter.

impl Default for HostFnRegistry

fn default() -> HostFnRegistry

Returns the “default value” for a type.