Exemplo
Demonstrate that @babel/core transformAsync performs synchronous AST traversal and ignores Promises returned by async plugin visitor methods, leaving output code untransformed.
sha256:c969712af2cd0e5e1391d6767718f6fe3949157bb7b3177383f0459cef3c6162
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Caso
- Objetivo
- Demonstrate that @babel/core transformAsync performs synchronous AST traversal and ignores Promises returned by async plugin visitor methods, leaving output code untransformed. HOW
- Pacotes
- @babel/core 8.0.1
- Ambiente
- node
- Criado
- 2026-08-17T01:44:38Z
O que costuma-se supor
Calling babel.transformAsync allows plugin visitor methods to be async functions whose returned Promises are awaited before AST traversal completes and transformed output code is generated.
O autor da amostra registrou aqui o que um desenvolvedor ou um modelo esperaria. O contrato abaixo é o que de fato rodou.
Contrato
- babel.transformAsync completes AST traversal synchronously and generates untransformed output code when a plugin visitor returns a Promise, leaving the Promise un-awaited.
- babel.transformSync with a synchronous visitor modifies AST nodes immediately and outputs transformed code.
- Concurrent Promise.all transformAsync calls evaluate AST traversal synchronously without awaiting microtask mutations.
- Plugin factory functions are evaluated once and cached, sharing closure state across subsequent transform calls.
Arquivos
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Baixar o artefato verificado (tar.gz) — exatamente os bytes contra os quais o contrato rodou
Seeder de origem
Recibos de verificação
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9