Literature Review

F-sharp Lint

• Hints - write own rules and suggestions
• NameConventions - rules that define stylistic naming conventions
• SourceLength - rules that analyse sections of code, e.g. complexity, max lines in a function
• Typography - analyse text in a file, e.g. max chars on line, trailing white space
• NestedStatements - check depth of nested elements
• Number of Items - check number of parameters to a function
• Function Reimplementation - highlight lamda function to be removed

fun x y -> x + y fun x y -> foo x y 

Chaining functions

fun x -> not(isValid(x)) fun x -> x |> isValid |> not

• XmlDocumentation - check if xml
• Binding - binding errors
• RaiseWithTooManyARguments - raise? - passed with too many arguments

Haskel - HLint

Features

• bracket reduction only (e.g. (foo) => foo)

foo xs = concat (map op xs) => concat . map op = > concatMap

• Improve code and teach author better style. Doing modifications one by one individually improves style.

• Display semantically changing hints

• Severity

  • Error - parse error
  • warning - concat (map f x ) => concatMap f x
  • suggestion - worthwhile but not to be applied blindly

• Ignore/suppress hints based on user input, as hints do not always make sense

Elixir - Credo