Record syntax `parse error on input ‘=’`

Question

I have a do block in my Yesod tests and I want to be test the response with an expected response.

I attempted to create an expected response in this do block

let expectedUser = User [authorized = true, ident = "AdminUser", displayName = Nothing, id = 1, avatar = Nothing]

On this line I get the error

parse error on input ‘=’
Perhaps you need a 'let' in a 'do' block?

on the = after authorized. How would I rewrite this line so that it would work inside a do block?

Chris Martin · Accepted Answer · 2018-02-25 02:08:58Z

6

The advice you're getting in the compile error is mostly irrelevant, because the parser really has no idea what you're trying to do here. Record syntax uses curly braces { and }, not [ and ]. So it should look like:

let expectedUser = User {authorized = true, ident = "AdminUser", displayName = Nothing, id = 1, avatar = Nothing}

and I would suggest some line breaks :)

let expectedUser = User { authorized = true
                        , ident = "AdminUser"
                        , displayName = Nothing
                        , id = 1
                        , avatar = Nothing
                        }

answered Feb 25, 2018 at 2:08

Chris Martin

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