Found while testing crates/formula/src/printer.rs:164 (write_struct_ref, single column without specifiers)
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Saving a large workbook spent about half its time building worksheet XML,
mostly in small per-cell allocations. The writer now appends to the part
directly:
- Cell references, row numbers, style ids, shared string indexes and
numbers are appended without temporary strings (push_a1, push_u64,
push_num), and text is escaped in place (push_esc, with a fast path for
plain ASCII).
- sheetData walks the cell store in its own row-major order instead of
copying every address into a BTreeSet and a per-row BTreeMap and looking
each cell up again. Cells outside the store (pictures, spill values,
table headers) still go through the sorted set.
- Formulas with nothing the file spells differently (no LET/LAMBDA, no
_xlfn function, no spill, @, trim operator or structured reference) are
printed from the shared expression instead of being cloned and rebuilt
twice by the file rewrite.
- The A1 printer in gridcraft-formula appends references to the output
instead of formatting each anchor into its own string.
The output is byte-for-byte unchanged.
write_perf, 200,000 rows (2.0M cells, 14.2 MB package), release, Ryzen
16 threads / Linux, 36 interleaved runs each:
before: median 2083.9 ms, min 1615.7 ms
after: median 1501.3 ms, min 1192.3 ms (-28.0 % median, -26.2 % min)
What remains is mostly deflate (zlib-rs, level 6), about 70 % of the save.
Tests pin the exact sheetData of a workbook covering row settings between
cell rows, spill values, every value kind, number spellings, escaping and
formulas with and without a file spelling (generated with the previous
writer), and check each appending helper and the formula fast path against
the code they replace.
The formula fast path is guarded by a test that runs both paths over every
function in the gridcraft-functions registry (a new dev-dependency, allowed
by the layer rules), in 15 surrounding shapes covering every operator and
rewrite, so a function or rewrite added later without updating the trigger
list fails it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Sonar: explicit imports, fn paths for closures, extract helpers for cognitive complexity
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Fix imports
* Fix serde imports
* Fix engine imports
* Fix clippy gate and a type error from the explicit-import change
Remove the unused imports the review flagged (cf.rs, pivot.rs, tables.rs, cmd/sheet.rs) so clippy -D warnings passes, and point the backstage parent-folder lookup at Path::to_str, which the fn-path rewrite had broken.
Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>
* Apply rustfmt to the explicit-import cleanup so the fmt gate passes
* Share the per-directory font path expansion in theme.rs
The candidate font lists repeated the same loop over the Linux font
directories in every role. A single helper expands them in the same order,
so the lookup order is unchanged and the duplicated blocks go away.
🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>
* Read the Windows fonts folder in one place in theme.rs
Every script-font list repeated the same WINDIR lookup. A single helper
returns the same path, so the duplicated lines go away without changing
which font files are tried.
🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>
* Build the light and dark UI palettes from one table in theme.rs
Tokens::light() and Tokens::dark() listed the same 40 colour fields in the
same order, so every change had to be made twice. A single palette
constructor takes the mode and picks each colour's value, so each field is
written once and both modes keep their exact colours.
🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>
* Share the Noto CJK font list between the CJK script lists in theme.rs
The Japanese, Simplified and Korean lists each repeated the same loop over
the Linux CJK directories with a different locale file name. One helper
builds that loop, and each list keeps its own face index, so the lookup
order is unchanged.
🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>
* Share Linux Noto directory list across Thai and Hebrew font lookups
Removes the duplicated directory arrays flagged by SonarCloud new-code duplication.
* Reuse in_dirs for Thai and Hebrew Noto font candidates
Removes the remaining duplicated per-directory loops flagged by SonarCloud.
* Share one font-list builder for the Thai and Hebrew faces
The two per-script functions repeated the same Windows, macOS, Linux and
variable-font setup. A single script_fonts helper now builds both lists,
keeping the candidate order unchanged, which clears the Sonar duplication gate.
---------
Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-authored-by: Codebuff <noreply@codebuff.com>
Found while testing crates/formula/src/printer.rs:134
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Found while testing crates/xlsx/src/fmla.rs:101 (with crates/formula/src/printer.rs:181)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Sheet names starting with '.' or reading as R1C1 (R, C, RC, R1C1...) were saved
unquoted, so Excel could not open the file; PivotTable sources and ADDRESS left
cell-like names (A1) bare. The quoting rule, unquoting and sheet splitting now
live once in gridcraft_core::addr and replace the copies in the formula printer,
pivot, ADDRESS, chart, xlsx, Solver, Go To and the Name Box (which now reads ''
as ').
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
[@Col] is only Excel's display shorthand. Written verbatim into cell formulas and calculatedColumnFormula, it made Excel repair the file and drop the tables.
formula::parse("Sheet1!$D$1#") failed with "unknown error literal".
A # right after a cell reference is now the spill range operator: it
evaluates to the anchor's current spill range, or #REF! when the cell
doesn't spill (or its spill is blocked). Its users depend on the
anchor, so they recalculate when the spill grows or shrinks. Names can
use it.
Files have no # operator: like Excel, the writer stores A1# as
_xlfn.ANCHORARRAY(A1), and the parser reads that back as A1#.
