* Cap editing and text-layer caches that grew without bound
The cos editing cache kept every touched object until save, so editing
a large document pinned its whole object graph. Bound it like the scan
reader: 1024 objects / 32 MB of owned bytes, 256 object streams /
32 MB, evicting to the newcomer. Returned objects outlive eviction, and
clones share the caches, so this only costs re-parsing.
The viewer text cache had the same shape: every visited page's text
stayed for the session. Retain visible, selected and matched pages plus
a 24-page prefetch window each frame; evicted pages re-extract on
revisit. Skipped while a search is active, where demand still wants
every page. Failures are never evicted: they cost nothing to remember.
cli info on a 1024-page/147 KB file (debug build, same host/command):
before 66.7 MB RSS, after 54.0 MB RSS (3 runs, tight).
Tests: editor count bound, byte bound, snapshot-clone reads (cos);
evict-far/keep-visible+matched+selection, search-active keep-all
(canvas). All mutation-checked: each bound goes red when disabled.
Signed-off-by: Chiranjeevi U <244287281+chiranjeevi-max@users.noreply.github.com>
* Index form fields once per refresh instead of once per field
The form-scope refresh ran a linear find over all fields for every
field, O(F^2) on each keystroke; forms reach 10k fields. Build one
name index up front, O(F). entry().or_insert() keeps the old
first-match semantics for repeated field names.
New test with two same-named widgets pins first-wins and goes red
under insert. 141 engine tests green, clippy warnings and perf lints
clean.
Signed-off-by: Chiranjeevi U <244287281+chiranjeevi-max@users.noreply.github.com>
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Signed-off-by: Chiranjeevi U <244287281+chiranjeevi-max@users.noreply.github.com>
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