Module numeric_in 

Flexible numeric-input helpers — accept any of NumericArray, PackedArray, or ByteArray on the wire and widen the element type into the caller’s target T. The widening rules are lossless: a source type is accepted only when every value of its domain is exactly representable in the target.

Used by the hand-written Vec<T> impls in [crate::from_wolfram] and by the field-extract code emitted by the FromWolfram derive macro (VecOfNumeric and NumericTensor field kinds).

ByteArray on the wire is treated as a 1-D NumericArray<Integer8> before the widening rules apply.

Traits

NumericTarget

Sealed trait implemented for each numeric primitive that the WXF derive / hand-impl path can read into. Each impl knows its target DT and how to widen from any compatible source DT.

Functions

read_fixed

Like read_vec but errors if the resulting buffer length doesn’t equal n.

read_fixed_with_tag

read_fixed given an already-consumed expression token.

read_vec

Read the next value as a flat Vec<T>. Accepts NumericArray, PackedArray (any rank — multi-dim flattens row-major), or ByteArray (treated as a 1-D NumericArray<Integer8>).

read_vec_with_tag

read_vec given an already-consumed expression token.