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net/http: remove "Seek" from File interface, replace with "io.Seeker" #13421

xoba opened this issue Nov 28, 2015 · 3 comments


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commented Nov 28, 2015

this merely simplifies the interface a bit (no change in functionality) and makes further connection to the io package, which seems appropriate:

type File interface {
        io.Seeker // ADD THIS
        Readdir(count int) ([]os.FileInfo, error)
        // Seek(offset int64, whence int) (int64, error) // REMOVE THIS
        Stat() (os.FileInfo, error)

not sure if there are any policy reasons why this change couldn't be made, like strict api compatibility, etc.

@rakyll rakyll changed the title remove "Seek" from net/http.File interface, replace with "io.Seeker" net/http: remove "Seek" from File interface, replace with "io.Seeker" Nov 28, 2015


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commented Nov 28, 2015

Why not grouping io.Reader and Seek into io.ReadSeeker?


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commented Nov 28, 2015

CL mentions this issue.


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commented Nov 28, 2015

sounds good to me, i guess either io.ReadSeeker+io.Closer (your CL), or io.ReadCloser+io.Seeker could work? only reason i didn't suggest it at first, is for some reason io.Closer and io.Reader weren't already combined into io.ReadCloser. anyone out there know the reasoning, if any, around that?

@ianlancetaylor ianlancetaylor added this to the Unplanned milestone Nov 29, 2015

@rakyll rakyll closed this in afc2c45 Nov 30, 2015

@golang golang locked and limited conversation to collaborators Dec 1, 2016

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