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77 lines
3.7 KiB
77 lines
3.7 KiB
Imports System.IO
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Imports System.Runtime.CompilerServices
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Imports System.Text
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Imports Microsoft.VisualBasic.ValueTypes
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Namespace IpcStream
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Module EmitHandler
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Public Delegate Function toBuffer(obj As Object) As Stream
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Public Delegate Function loadBuffer(buf As Stream) As Object
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Public Iterator Function PopulatePrimitiveHandles() As IEnumerable(Of (target As Type, emit As toBuffer))
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Yield (GetType(Integer), Function(i) New MemoryStream(BitConverter.GetBytes(DirectCast(i, Integer))))
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Yield (GetType(UInteger), Function(i) New MemoryStream(BitConverter.GetBytes(DirectCast(i, UInteger))))
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Yield (GetType(Long), Function(l) New MemoryStream(BitConverter.GetBytes(DirectCast(l, Long))))
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Yield (GetType(ULong), Function(l) New MemoryStream(BitConverter.GetBytes(DirectCast(l, ULong))))
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Yield (GetType(Single), Function(f) New MemoryStream(BitConverter.GetBytes(DirectCast(f, Single))))
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Yield (GetType(Double), Function(d) New MemoryStream(BitConverter.GetBytes(DirectCast(d, Double))))
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Yield (GetType(UShort), Function(s) New MemoryStream(BitConverter.GetBytes(DirectCast(s, UShort))))
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Yield (GetType(Boolean), Function(b) New MemoryStream(New Byte() {If(DirectCast(b, Boolean), 1, 0)}))
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Yield (GetType(String), AddressOf stringBuffer)
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Yield (GetType(Char), Function(c) New MemoryStream(BitConverter.GetBytes(AscW(DirectCast(c, Char)))))
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Yield (GetType(Byte), Function(b) New MemoryStream({DirectCast(b, Byte)}))
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Yield (GetType(Date), Function(d) New MemoryStream(BitConverter.GetBytes(DirectCast(d, Date).UnixTimeStamp)))
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End Function
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Private Function stringBuffer(s As Object) As Stream
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Dim bytes As Byte() = Encoding.UTF8.GetBytes(DirectCast(s, String))
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Dim ms As New MemoryStream(bytes)
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Return ms
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End Function
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Private Function stringBuffer(s As Stream) As Object
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Dim bytes As Byte() = s.readAllBytes
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Dim str As String = Encoding.UTF8.GetString(bytes)
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Return str
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End Function
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Public Iterator Function PopulatePrimitiveParsers() As IEnumerable(Of (target As Type, emit As loadBuffer))
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Yield (GetType(Integer), Function(i) BitConverter.ToInt32(i.readAllBytes, Scan0))
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Yield (GetType(UInteger), Function(i) BitConverter.ToUInt32(i.readAllBytes, Scan0))
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Yield (GetType(Long), Function(l) BitConverter.ToInt64(l.readAllBytes, Scan0))
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Yield (GetType(ULong), Function(l) BitConverter.ToUInt64(l.readAllBytes, Scan0))
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Yield (GetType(Single), Function(f) BitConverter.ToSingle(f.readAllBytes, Scan0))
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Yield (GetType(Double), Function(d) BitConverter.ToDouble(d.readAllBytes, Scan0))
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Yield (GetType(Short), Function(s) BitConverter.ToInt16(s.readAllBytes, Scan0))
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Yield (GetType(UShort), Function(s) BitConverter.ToUInt16(s.readAllBytes, Scan0))
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Yield (GetType(Boolean), Function(b) b.readAllBytes()(Scan0) <> 0)
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Yield (GetType(String), AddressOf stringBuffer)
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Yield (GetType(Char), Function(c) ChrW(BitConverter.ToInt32(c.readAllBytes, Scan0)))
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Yield (GetType(Byte), Function(b) b.readAllBytes()(Scan0))
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Yield (GetType(Date), Function(d) FromUnixTimeStamp(BitConverter.ToDouble(d.readAllBytes, Scan0)))
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End Function
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<Extension>
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Private Function readAllBytes(buf As Stream) As Byte()
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Dim sizeOf As Integer = buf.Length
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Dim bytes As Byte() = New Byte(sizeOf - 1) {}
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Call buf.Read(bytes, Scan0, sizeOf)
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Return bytes
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End Function
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End Module
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End Namespace |