Пример

Control pattern memoization and match caching across Mustermann.new, match, and params calls

sha256:b93244f63cc31a720f00109506358b78d33bfdbb43bf8e91519ac4a0d276f669

PUBLISHED L3_CONTRACT_PASS MIT-0

Кейс

Цель: Control pattern memoization and match caching across Mustermann.new, match, and params calls HOW
Пакеты: mustermann 4.0.0
Окружение: ruby
Создан: 2026-08-16T15:57:09Z

Mustermann.new always allocates a new pattern instance and pattern.params simply delegates to pattern.match to retrieve cached parameter hashes.

Автор образца записал здесь то, чего ожидал бы разработчик или модель. Контракт ниже — это то, что действительно выполнялось.

Mustermann.new returns the identical cached pattern instance for matching strings and options via WeakMap memoization rather than allocating a new pattern object each time.
Mustermann.new with different options creates and caches a distinct pattern instance.
pattern.match caches Mustermann::Match objects so consecutive calls with the same path return the identical memoized Match instance and cached params hash.
pattern.params bypasses Match allocation and match caching, returning a newly allocated Hash directly from regexp named captures.
Mustermann.new with cache: false disables Match caching, returning a new Mustermann::Match instance on each match call.
Mustermann.new with a custom cache hash routes cached Match objects into the caller-provided hash table.
Composite pattern operators retain memoization so unioning identical patterns returns the same composite instance.

ruby 3 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-16 · ed25519:d91480838ac982c9