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iterator_count() — internals
Compiler internals for iterator_count(): lowering path, type checks, and runtime helpers.
iterator_count() — internals
Where it lives
- Signature:
src/builtins/spl/iterator_count.rs - Lowering:
src/codegen/lower_inst/builtins/spl.rs:237 (lower_iterator_count) - Function symbol:
lower_iterator_count()
Lowering notes
- Lowers
iterator_count()over arrays,iterable, and Traversable objects.
Runtime helpers
No direct __rt_* helpers captured — the lowering is inlined or routes through another builtin.
Signature summary
function iterator_count(traversable $iterator): intWhat the type checker enforces
- Arity: takes exactly 1 argument.
Eval interpreter (magician)
- Declaration:
crates/elephc-magician/src/interpreter/builtins/array/iterator_count.rs(eval_builtin!) - Dispatch hooks:
direct,values