Cockatrice/libcockatrice_filters
BruebachL b85436461e
[Filters] Precompute term data instead of redoing it per card (#7603)
* [Filters] Precompute term data instead of redoing it per card

Card filters are evaluated once per card in the database, and several
attributes derived constant values from the filter term on every single
evaluation:

- acceptColor() ran up to twelve case-insensitive string replacements and
  a space strip for each card, then called getColors() again for every
  character of the term.
- acceptRarity() ran the rarity abbreviation expansion loop per card.
- acceptManaCost() uppercased and sorted the term per card, before
  sorting the card's own cost.
- acceptLoyalty() and acceptFormat() trimmed/lowercased the term per card.
- relationCheck() re-parsed the numeric operator and operand per card,
  for every cmc/power/toughness/loyalty comparison.

The term of a FilterItem never changes, so these values are now computed
once in the constructor and only the card-dependent part remains in the
accept path. For colors this also removes the repeat getColors() call,
which materializes the printing properties hash.

Additionally:
- CardInfoPtr is passed by const reference through FilterItemList,
  FilterItem and FilterTree instead of by value, removing an atomic
  refcount pair per card per filter node.
- Main/sub type filtering no longer allocates a QStringList via split();
  it looks the " - " separator up directly and compares QStringViews.
- acceptSet() and acceptPowerToughness() fetch the printing/set or the
  power/toughness string once instead of once per branch/accessor.

No filtering behavior is intended to change. Invalid numeric terms (for
example a bare "<") now return false instead of indexing trimmedTerm[1]
past the end.

Verified with filter_string_test (42 tests) and a full client build.

* [Filters] Address review comments

- Replace the main/sub type separator accessor function with a plain
  namespace-scope constant.
- Take card type, colors, cmc, loyalty, power/toughness and the printing's
  set by value; those getters already return by value.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
2026-10-23 11:23:17 +02:00
..
libcockatrice/filters [Filters] Precompute term data instead of redoing it per card (#7603) 2026-10-23 11:23:17 +02:00
CMakeLists.txt [Build] Extend PCH to libraries and grow IWYU-driven header sets (#7456) 2026-10-11 15:07:30 +02:00