One tiny amendment to a comment(!) in the non-normative(!) code in Phase 3:

data WindowsFilePath = WFP ByteArray# -- UTF16 data

If a Windows file path is valid UTF-16 then it is displayed as such in the GUI, but if not it's still a legal file path. It really is just wchar_t[] data:

data WindowsFilePath = WFP ByteArray# -- wchar_t[] data as passed to syscalls

This seems to be the source of some confusion.

Cheers,

David 

On 26 June 2015 at 17:08, Herbert Valerio Riedel <hvr@gnu.org> wrote:

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Hello *,

What?
=====

We (see From: & CC: headers) propose, plain and simple, to turn the
currently defined type-synonym

  type FilePath = String

into an abstract/opaque data type instead.

Why/How/When?
=============

For details (including motivation and a suggested transition scheme)
please consult

  https://ghc.haskell.org/trac/ghc/wiki/Proposal/AbstractFilePath



Suggested discussion period: 4 weeks
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