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lib/encoding/base64: clear() via array-decay now that #258 lands; drop stale comment

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Hojun-Cho
2026-06-02 06:17:59 +09:00
parent 16b7412003
commit 6d8434002d
1 changed files with 3 additions and 9 deletions
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lib/encoding/base64/base64.ww
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@@ -246,16 +246,10 @@ fn encode_closer(s: io.stream) (void | io.error) = {
}; };
// clear — zero the work buffers after a flush. // clear — zero the work buffers after a flush.
// ref/hare/encoding/base64/base64.ha:244-247. Hare passes the bare // ref/hare/encoding/base64/base64.ha:244-247.
// arrays (`bytes::zero(e.ibuf)`) which array-decay to a WHOLE-array
// slice — a hygiene wipe of every byte. ww has no implicit [N]T->[]T
// coercion yet (#258), so the slices are spelled EXPLICIT and
// FULL-LENGTH (`[0:len(...)]`, length via len() per rule-13) to
// preserve Hare's whole-array wipe; a windowed slice would leave stale
// tail bytes (a behavioral divergence).
fn clear(e: *encoder) void = { fn clear(e: *encoder) void = {
bytes.zero(e.ibuf[0 : len(e.ibuf)]); bytes.zero(e.ibuf);
bytes.zero(e.obuf[0 : len(e.obuf)]); bytes.zero(e.obuf);
}; };
// encodeslice — encode `in` and return a fresh byte slice of base64 // encodeslice — encode `in` and return a fresh byte slice of base64