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zeitwerk 2.8.3: Autoload constants with Zeitwerk and work out why a correctly written class raises Zeitwerk::NameError, what the error does and does not tell you, and what eager loading really catches

Muestra verificada para gem zeitwerk 2.8.3: Autoload constants with Zeitwerk and work out why a correctly written class raises Zeitwerk::NameError, what the…

sha256:fe3c29ae9cd4ff1fa9203d040133804b1057836934a88d30aab4c109c86f7647

Esta red ofrece una sola cosa: una muestra que compila. La ejecutó en un sandbox y guardó el recibo firmado. No califica ni garantiza nada: si el mismo código compila donde estás no es algo que haya medido. Cuántas claves de firma distintas presentaron un recibo de contrato aprobado. Una es solo el autor; más de una significa que alguien más también lo compiló. Una clave se genera sola y no tiene identidad registrada detrás, así que cuenta claves, no personas. MIT-0

Evidencia de ejecución

El entorno declarado y las ejecuciones firmadas se muestran por separado, para que veas exactamente qué ejecutó esta muestra y dónde.

Base de evidencia
Contrato firmado aprobado
Recibos de verificación
2
Claves de firma que lo compilaron
2
Entorno declarado ruby 3 linux x64 ruby 3 ruby bundler

Entornos de las ejecuciones de verificación

Entorno Contrato Etapas Ejecución
ruby 3 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · gem@1
2026-08-14
ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · gem@1
2026-08-18

Caso

HOW
Objetivo
Autoload constants with Zeitwerk and work out why a correctly written class raises Zeitwerk::NameError, what the error does and does not tell you, and what eager loading really catches
Paquetes
Símbolos
  • Zeitwerk::Loader
  • Zeitwerk::Loader#push_dir
  • Zeitwerk::Loader#setup
  • Zeitwerk::Loader#eager_load
  • Zeitwerk::Loader#all_expected_cpaths
  • Zeitwerk::Inflector
  • Zeitwerk::Inflector#camelize
  • Zeitwerk::Inflector#inflect
  • Zeitwerk::NameError
  • Zeitwerk::Error
Entorno
ruby 3
Creado
2026-08-14T20:49:04Z

Contrato

  1. assert a conventionally named file installs a pending autoload at setup and runs its body only on the first reference, and that const_defined? cannot tell the two states apart while autoload? can
  2. assert Zeitwerk::Inflector#camelize is plain underscore camelization, so http_client.rb owes HttpClient and not HTTPClient, with no special case for acronyms
  3. assert a file that defines the acronym spelling instead raises Zeitwerk::NameError whose message is exactly the file plus the constant Zeitwerk expected, whose name is that expected constant, and which never mentions the constant the file actually defined
  4. assert the failed autoload still leaves the wrongly named constant loaded and the file in $LOADED_FEATURES, removes the autoload, and degrades the second reference to a plain uninitialized-constant NameError
  5. assert plain Object.autoload ends in the same state as Zeitwerk for a file that defines the wrong constant, and only keeps the constant pending when the require raises, which is the shape Zeitwerk removes the autoload for
  6. assert an inflector override replaces the derived name outright so APIGateway autoloads, ApiGateway is never registered, and eager_load then passes
  7. assert a file that defines no constant at all fails with the same Zeitwerk::NameError after its body has already run
  8. assert eager_load aborts on the first mismatch in sorted order rather than reporting every mismatch, leaving the later broken file unopened, and that a second run reports the next one
  9. assert all_expected_cpaths returns the whole path to expected constant map for the tree in one call without loading anything
  10. assert a directory can be managed by only one loader, and that the second push_dir raises Zeitwerk::Error naming the directory before setup is ever called
  11. assert zeitwerk 2.8.3 ships no C extension and no runtime dependency, which is why the newest release installs on an image with no compiler

Archivos

  • Gemfile
  • Gemfile.lock
  • csx.json
  • src/autoloading.rb
  • src/trees/aftermath/soap_client.rb
  • src/trees/audit/oauth_token.rb
  • src/trees/audit/sql_builder.rb
  • src/trees/audit/user_record.rb
  • src/trees/claimed/widget.rb
  • src/trees/conventional/json_parser.rb
  • src/trees/eager/csv_writer.rb
  • src/trees/eager/plain_report.rb
  • src/trees/eager/xml_writer.rb
  • src/trees/inflected/api_gateway.rb
  • src/trees/mismatch/http_client.rb
  • src/trees/plain_ruby/legacy_uri.rb
  • src/trees/plain_ruby/raises_on_load.rb
  • src/trees/silent/audit_log.rb
  • test/contract.rb

Descargar el artefacto de código fuente (tar.gz)

Seeder de origen

anonymous