Generalize `filterM` (etc.?) to `Applicative`

Abierto
#162 3 comentarios 1 reacción 0 asignados Ver en GitHub

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Evaluación

Dificultad
4/5
Tiempo estimado
3-5 días
Aptitud para principiantes
42/100
Tipo de issue
Nueva funcionalidad
Claridad
Bastante claro
Estado de actividad
Tranquilo
Área
backend

Línea de trabajo

Start by reviewing the filterM implementation and the closed pull request #35, which also considered replicateM. Check whether the proposed generalization to Applicative fits the current library API, then identify any related changes from that pull request worth splitting out. Done means a focused change with tests showing filterM works with an Applicative that is not a Monad.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

type: enhancement

Today I noticed that PureScript filterM is constrained to Monad, whereas Haskell filterM is constrained to Applicative. After looking at the source code for each and asking on FP Slack, it seems there is no particular reason filterM cannot be more general in PS.

#35 was set to change this and some other things (e.g. replicateM). However, that PR was closed due to staleness. The author @DavidHarrison was going to split it up into individual PRs, but hasn't gotten around to it yet. It seems worthwhile to double-check that PR to see if there is anything else from it you may want to merge.

Lenguaje dominante
PureScript
Estrellas
61
Forks
50
Merge medio
2 d 6 h
PR fusionados (30 d)
1

Preparar el entorno

  • Sin Dockerfile ni archivo de Docker Compose
  • Tiene una plantilla de pull request
  • Sin guía de contribución

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

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