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Error message: "Perhaps you need a let in a do block", when there is no do block.

    • Closed Issue created by cdsmith@twu.net @trac-cdsmith

    This code:

    main = return ()
 foo = return ()

    Gives the error message:

    parse error on input ‘=’
    Perhaps you need a 'let' in a 'do' block?
    e.g. 'let x = 5' instead of 'x = 5'

    But this isn't in a do block. It would be awesome if GHC checked whether there's a do block before giving a suggestion that depends on there being a do block.

    Trac metadata
    Trac field Value
    Version 8.4.3
    Type Bug
    TypeOfFailure OtherFailure
    Priority normal
    Resolution Unresolved
    Component Compiler
    Test case
    Differential revisions
    BlockedBy
    Related
    Blocking
    CC
    Operating system
    Architecture
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