The list at the foot of prelude.ml was one sentence -- every entry needed to
produce bytes that did not exist in its input, and there was no allocator --
and that sentence has been false since Vec landed. Seven entries move up into
the code, and string-from-bytes turns out to have been the `string` builtin
all along: (string (as-slice v)) is the round trip, free precisely because
the layouts are identical.
What is left is refused for four different reasons and is written that way
now: pad and center for nothing at all except that no caller has asked;
format and sprintf for variadics of mixed type; map, filter, reduce and
sort-by for function values; map-keys and map-values for a map iterator that
does not exist in the runtime.
NEXT.md's queued section is struck and carries the four findings, each with
the change it wants named -- flan_map_next plus one builtin for the iterator;
milestone 5's function values for the higher-order three; vec_new_elem taking
a type expression rather than a bare name, which is what forces slices-new to
exist; and an array literal with no way to say it is [f32], which is what
forces every float in algorithms.flan to be cast. BUILT.md gets the section.
Joseph Ferano
a8a7ebc3f6