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array_reduce() — internals
Compiler internals for array_reduce(): lowering path, type checks, and runtime helpers.
array_reduce() — internals
Where it lives
- Signature:
src/builtins/array/array_reduce.rs - Lowering:
src/codegen/lower_inst/builtins/arrays.rs:695 (lower_array_reduce) - Function symbol:
lower_array_reduce()
Lowering notes
- Lowers
array_reduce()through the callback-driven runtime helper.
Runtime helpers
The following runtime helpers are referenced:
__rt_array_reduce
Signature summary
function array_reduce(array $array, callable $callback, mixed $initial = null): intWhat the type checker enforces
- Arity: takes 2–3 arguments (1 optional).
Eval interpreter (magician)
- Declaration:
crates/elephc-magician/src/interpreter/builtins/array/array_reduce.rs(eval_builtin!) - Dispatch hooks:
direct,values