rules:
  - id: ocamllint-length-list-zero
    pattern: List.length $X = 0
    message: You probably want $X = [], which is faster.
    languages: [ocaml]
    severity: WARNING
    metadata:
      category: performance
      technology:
        - ocaml
  - id: ocamllint-length-more-than-zero
    pattern: List.length $X > 0
    message: You probably want $X <> [], which is faster.
    languages: [ocaml]
    severity: WARNING
    metadata:
      category: performance
      technology:
        - ocaml