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linguist/samples/F#/JsonFormat.fs
2014-12-03 08:36:58 -06:00

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namespace Nessos.FsPickler.Json
open System
open System.IO
open System.Text
open Newtonsoft.Json
open Nessos.FsPickler
/// <summary>
/// Factory methods for the Json serialization format.
/// </summary>
type JsonPickleFormatProvider internal (indent, omitHeader) as self =
let isCustomSeq isTopLevelSequence =
isTopLevelSequence && self.OmitHeader && self.UseCustomTopLevelSequenceSeparator
let mutable sequenceSeparator = " "
member val Indent = indent with get,set
member val OmitHeader = omitHeader with get,set
member val UseCustomTopLevelSequenceSeparator = false with get,set
member __.SequenceSeparator
with get () = sequenceSeparator
and set sep =
if sep <> null && String.IsNullOrWhiteSpace sep then
sequenceSeparator <- sep
else
invalidArg "SequenceSeparator" "should be non-null whitespace."
interface ITextPickleFormatProvider with
member __.Name = "Json"
// see discussion : https://github.com/nessos/FsPickler/issues/17
member __.DefaultEncoding = new UTF8Encoding(false) :> Encoding
member __.CreateWriter (stream, encoding, isTopLevelSequence, leaveOpen) =
#if NET40
if leaveOpen then raise <| new NotSupportedException("'leaveOpen' not supported in .NET 40.")
let sw = new StreamWriter(stream, encoding)
#else
let sw = new StreamWriter(stream, encoding, 1024, leaveOpen)
#endif
let jw = new JsonTextWriter(sw)
new JsonPickleWriter(jw, __.OmitHeader, __.Indent, isCustomSeq isTopLevelSequence, sequenceSeparator, leaveOpen) :> _
member __.CreateReader (stream, encoding, isTopLevelSequence, leaveOpen) =
#if NET40
if leaveOpen then raise <| new NotSupportedException("'leaveOpen' not supported in .NET 40.")
let sr = new StreamReader(stream, encoding)
#else
let sr = new StreamReader(stream, encoding, true, 1024, leaveOpen)
#endif
let jr = new JsonTextReader(sr)
new JsonPickleReader(jr, __.OmitHeader, isCustomSeq isTopLevelSequence, leaveOpen) :> _
member __.CreateWriter (textWriter, isTopLevelSequence, leaveOpen) =
let jw = new JsonTextWriter(textWriter)
new JsonPickleWriter(jw, __.OmitHeader, __.Indent, isCustomSeq isTopLevelSequence, sequenceSeparator, leaveOpen) :> _
member __.CreateReader (textReader, isTopLevelSequence, leaveOpen) =
let jr = new JsonTextReader(textReader)
new JsonPickleReader(jr, __.OmitHeader, isCustomSeq isTopLevelSequence, leaveOpen) :> _