pulibrary / bibdata / c1f1a357-0d1c-4400-bbd1-4837d4854fb0

90%

main: 90%

Pull #3118

circleci

Migrate some uses of Traject TranslationMaps to Rust

The rust binary includes the holdings json, so once we finish
this migration, we will not need these two translation map
files.

```
require 'benchmark/ips'
RubyVM::YJIT.enable
code = 'scsbcul'
Benchmark.ips do |x|
  x.report('rust - location label') { BibdataRs::Marc.location_label(code) }
  x.report('ruby - location label') { Traject::TranslationMap.new('locations')[code] }
  x.compare!
end
Benchmark.ips do |x|
  x.report('rust - library label') { BibdataRs::Marc.library_label(code) }
  x.report('ruby - library label') { Traject::TranslationMap.new('location_display')[code] }
  x.compare!
end
```

```
ruby 3.4.4 (2025-05-14 revision a38531fd3f) +YJIT +PRISM [arm64-darwin24]
Warming up --------------------------------------
rust - location label
                       684.446k i/100ms
ruby - location label
                       310.022k i/100ms
Calculating -------------------------------------
rust - location label
                          6.820M (± 0.9%) i/s  (146.63 ns/i) -     34.222M in   5.018583s
ruby - location label
                          3.057M (± 1.9%) i/s  (327.15 ns/i) -     15.501M in   5.073030s

Comparison:
rust - location label:  6819710.2 i/s
ruby - location label:  3056727.2 i/s - 2.23x  slower

ruby 3.4.4 (2025-05-14 revision a38531fd3f) +YJIT +PRISM [arm64-darwin24]
Warming up --------------------------------------
rust - library label   677.720k i/100ms
ruby - library label   310.036k i/100ms
Calculating -------------------------------------
rust - library label      6.808M (± 2.1%) i/s  (146.88 ns/i) -     34.564M in   5.079184s
ruby - library label      3.109M (± 1.7%) i/s  (321.69 ns/i) -     15.812M in   5.088198s

Comparison:
rust - library label:  6808218.2 i/s
ruby - library label:  3108549.8 i/s - 2.19x  slower
```

23 of 29 new or added lines in 2 files covered. (79.31%)

6573 of 7348 relevant lines covered (89.45%)

22.03 hits per line