Files
vectorcraft/crates/engine/tests
dotCooCoo 89f20c45c4 SVG import: bound selector matching and share the limits with linked and embedded SVGs
The measurement that runs before the style cascade and usvg now covers
the inputs that still got past it:

- usvg matches a selector without keeping what it found, so one whose
  leftmost part matches nothing tests every set of ancestors in turn.
  The measurement counts those tests for each copy and stops at
  50,000,000; past that the SVG is refused with "the SVG's style sheets
  take too long to match". An SVG image's matching stops at what the
  SVG showing it left.
- A test counts one more for every 16 attributes a lookup scans and
  every 16 bytes of the value it compares, so many classes against a
  long class list count the work they do, in usvg's matching and in
  the import's own cascade.
- The declarations the import's own cascade keeps, once per element,
  count toward the 64 MB, including those of `:not()` rules, which usvg
  drops. Each `:not()` alternative counts as a test.
- A linked SVG file is measured before its cascade runs. The linked SVG
  files share one measurement: once they pass the limits together, the
  files after that are shown without their links. The tests a file past
  the limits made still count.
- SVG images share the element limit and the selector tests with the
  SVG showing them, as they already shared the 64 MB.

The svg_filters reader measures its SVG before the cascade too.
2026-11-14 16:10:10 -08:00
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