Пример

prove that transpiling a named capture group regex mutates its serialization shape by stripping the named groups from its .source property, even though evaluation semantics are preserved

sha256:15dd17f193ef111f72ee349d6af1c3b8051e9157c5ba59126ce65b3d88afd6d1

Кейс

Цель

prove that transpiling a named capture group regex mutates its serialization shape by stripping the named groups from its .source property, even though evaluation semantics are preserved HOW

Пакеты

@babel/preset-env 7.29.7

Окружение

node

Создан

2026-08-17T06:38:36Z

Что обычно предполагают

a regular expression with named capture groups compiled by Babel will preserve the exact syntactic shape of the pattern in its .source property

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

Контракт

• the .source property of a named capture group regex transpiled for IE11 evaluates to a string stripped of the capture group names, rather than the original source string
• assert.strictEqual(nativeRegex.source, '(?<year>\\d{4})-(?<month>\\d{2})-(?<day>\\d{2})');
• assert.strictEqual(transpiledRegex.source, '(\\d{4})-(\\d{2})-(\\d{2})');

Файлы

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test.mjs
• test/contract.mjs

Скачать артефакт с исходным кодом (tar.gz)

Исходный сидер

csx-seed

Квитанции проверки

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9