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Type Provider for Directory

Type provider for acceess more datafile via class property.

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//Example
//open FileProvider
//let f=new FileProv<"c:/windows">("c:/windows")
//f.``win.ini``.Text

//new FileProv<complie_directory>(real_directory) // () - to current directory
//FileProv.members_from_file_names...
  //.Text - Get text from file. Encoding=UTF8
  //.GetText(encoding) - Get text from file. Encoding=encoding
  //.StreamR - Stream for read
  //.StreamW - Stream for write
  //.Name - file name
  //.FullName - full file name

//add to project ProvidedTypes-0.2.fs & ProvidedTypes-0.2.fsi from
//http://fsharp3sample.codeplex.com/SourceControl/latest#SampleProviders/Shared/ProvidedTypes-0.2.fs

module FileProvider
open System.IO
open System.Text
open Samples.FSharp.ProvidedTypes
open Microsoft.FSharp.Core.CompilerServices

[<TypeProvider>]
type FilePr() as this =
    inherit TypeProviderForNamespaces()
    let asm,ns = System.Reflection.Assembly.GetExecutingAssembly(),"FileProvider"
    let IniTy = ProvidedTypeDefinition(asm, ns, "FileProv", None)
    do IniTy.DefineStaticParameters([ProvidedStaticParameter("path", typeof<string>)],
                                    fun tyName [|:? string as path|] ->
                                         let ty = ProvidedTypeDefinition(asm, ns, tyName, None)
                                         [ProvidedConstructor([ProvidedParameter("path",typeof<string>)],
                                                              InvokeCode=(fun [path]-> <@@ %%path:string @@>))
                                          ProvidedConstructor([],InvokeCode=(fun _ -> <@@ Directory.GetCurrentDirectory() @@>))]
                                           |>ty.AddMembers 
                                         Directory.GetFiles(path)|>Seq.map (fun name->FileInfo(name).Name)
                                          |>Seq.iter (fun (name)->
                                                       let sty=ProvidedTypeDefinition(name,None)
                                                       ty.AddMember sty
                                                       [ProvidedProperty("Text",typeof<string>,
                                                                         GetterCode=fun [path] -> <@@ Path.Combine((%%path:obj):?>string,name)|>File.ReadAllText @@>)
                                                        ProvidedProperty("StreamR",typeof<Stream>,
                                                                         GetterCode=fun [path] -> <@@ Path.Combine((%%path:obj):?>string,name)|>File.OpenRead @@>)
                                                        ProvidedProperty("StreamW",typeof<Stream>,
                                                                         GetterCode=fun [path] -> <@@ Path.Combine((%%path:obj):?>string,name)|>File.OpenWrite @@>)
                                                        ProvidedProperty("Name",typeof<string>,
                                                                         GetterCode=fun _ -> <@@ name @@>)
                                                        ProvidedProperty("FullName",typeof<string>,
                                                                         GetterCode=fun [path] -> <@@ Path.Combine((%%path:obj):?>string,name) @@>)]
                                                         |>sty.AddMembers
                                                       ProvidedMethod("GetText",[ProvidedParameter("Encode",typeof<Encoding>)],typeof<string>,
                                                                      InvokeCode=fun [path;enc] -> <@@ File.ReadAllText( Path.Combine((%%path:obj):?>string,name),(%%enc:>Encoding)) @@>)
                                                         |>sty.AddMember
                                                       let prop=ProvidedProperty(name,sty,GetterCode=fun [arg] -> <@@ (%%arg:obj):?>string @@>)
                                                       ty.AddMember prop)
                                         ty)
       this.AddNamespace(ns, [IniTy])
[<TypeProviderAssembly>]
do()
module FileProvider
namespace System
namespace System.IO
namespace System.Text
namespace Microsoft.FSharp
namespace Microsoft
namespace Microsoft.FSharp.Core
namespace Microsoft.FSharp.Core.CompilerServices
Multiple items
type TypeProviderAttribute =
  inherit Attribute
  new : unit -> TypeProviderAttribute

Full name: Microsoft.FSharp.Core.CompilerServices.TypeProviderAttribute

--------------------
new : unit -> TypeProviderAttribute
Multiple items
type FilePr =
  inherit obj
  new : unit -> FilePr

Full name: FileProvider.FilePr

--------------------
new : unit -> FilePr
val this : FilePr
namespace System.Reflection
type Assembly =
  member CodeBase : string
  member CreateInstance : typeName:string -> obj + 2 overloads
  member EntryPoint : MethodInfo
  member Equals : o:obj -> bool
  member EscapedCodeBase : string
  member Evidence : Evidence
  member FullName : string
  member GetCustomAttributes : inherit:bool -> obj[] + 1 overload
  member GetCustomAttributesData : unit -> IList<CustomAttributeData>
  member GetExportedTypes : unit -> Type[]
  ...

Full name: System.Reflection.Assembly
System.Reflection.Assembly.GetExecutingAssembly() : System.Reflection.Assembly
union case Option.None: Option<'T>
val typeof<'T> : System.Type

Full name: Microsoft.FSharp.Core.Operators.typeof
Multiple items
val string : value:'T -> string

Full name: Microsoft.FSharp.Core.Operators.string

--------------------
type string = System.String

Full name: Microsoft.FSharp.Core.string
type Directory =
  static member CreateDirectory : path:string -> DirectoryInfo + 1 overload
  static member Delete : path:string -> unit + 1 overload
  static member EnumerateDirectories : path:string -> IEnumerable<string> + 2 overloads
  static member EnumerateFileSystemEntries : path:string -> IEnumerable<string> + 2 overloads
  static member EnumerateFiles : path:string -> IEnumerable<string> + 2 overloads
  static member Exists : path:string -> bool
  static member GetAccessControl : path:string -> DirectorySecurity + 1 overload
  static member GetCreationTime : path:string -> DateTime
  static member GetCreationTimeUtc : path:string -> DateTime
  static member GetCurrentDirectory : unit -> string
  ...

Full name: System.IO.Directory
Directory.GetCurrentDirectory() : string
Directory.GetFiles(path: string) : string []
Directory.GetFiles(path: string, searchPattern: string) : string []
Directory.GetFiles(path: string, searchPattern: string, searchOption: SearchOption) : string []
module Seq

from Microsoft.FSharp.Collections
val map : mapping:('T -> 'U) -> source:seq<'T> -> seq<'U>

Full name: Microsoft.FSharp.Collections.Seq.map
Multiple items
type FileInfo =
  inherit FileSystemInfo
  new : fileName:string -> FileInfo
  member AppendText : unit -> StreamWriter
  member CopyTo : destFileName:string -> FileInfo + 1 overload
  member Create : unit -> FileStream
  member CreateText : unit -> StreamWriter
  member Decrypt : unit -> unit
  member Delete : unit -> unit
  member Directory : DirectoryInfo
  member DirectoryName : string
  member Encrypt : unit -> unit
  ...

Full name: System.IO.FileInfo

--------------------
FileInfo(fileName: string) : unit
val iter : action:('T -> unit) -> source:seq<'T> -> unit

Full name: Microsoft.FSharp.Collections.Seq.iter
type Path =
  static val DirectorySeparatorChar : char
  static val AltDirectorySeparatorChar : char
  static val VolumeSeparatorChar : char
  static val InvalidPathChars : char[]
  static val PathSeparator : char
  static member ChangeExtension : path:string * extension:string -> string
  static member Combine : [<ParamArray>] paths:string[] -> string + 3 overloads
  static member GetDirectoryName : path:string -> string
  static member GetExtension : path:string -> string
  static member GetFileName : path:string -> string
  ...

Full name: System.IO.Path
Path.Combine([<System.ParamArray>] paths: string []) : string
Path.Combine(path1: string, path2: string) : string
Path.Combine(path1: string, path2: string, path3: string) : string
Path.Combine(path1: string, path2: string, path3: string, path4: string) : string
type obj = System.Object

Full name: Microsoft.FSharp.Core.obj
type File =
  static member AppendAllLines : path:string * contents:IEnumerable<string> -> unit + 1 overload
  static member AppendAllText : path:string * contents:string -> unit + 1 overload
  static member AppendText : path:string -> StreamWriter
  static member Copy : sourceFileName:string * destFileName:string -> unit + 1 overload
  static member Create : path:string -> FileStream + 3 overloads
  static member CreateText : path:string -> StreamWriter
  static member Decrypt : path:string -> unit
  static member Delete : path:string -> unit
  static member Encrypt : path:string -> unit
  static member Exists : path:string -> bool
  ...

Full name: System.IO.File
File.ReadAllText(path: string) : string
File.ReadAllText(path: string, encoding: Encoding) : string
type Stream =
  inherit MarshalByRefObject
  member BeginRead : buffer:byte[] * offset:int * count:int * callback:AsyncCallback * state:obj -> IAsyncResult
  member BeginWrite : buffer:byte[] * offset:int * count:int * callback:AsyncCallback * state:obj -> IAsyncResult
  member CanRead : bool
  member CanSeek : bool
  member CanTimeout : bool
  member CanWrite : bool
  member Close : unit -> unit
  member CopyTo : destination:Stream -> unit + 1 overload
  member Dispose : unit -> unit
  member EndRead : asyncResult:IAsyncResult -> int
  ...

Full name: System.IO.Stream
File.OpenRead(path: string) : FileStream
File.OpenWrite(path: string) : FileStream
type Encoding =
  member BodyName : string
  member Clone : unit -> obj
  member CodePage : int
  member DecoderFallback : DecoderFallback with get, set
  member EncoderFallback : EncoderFallback with get, set
  member EncodingName : string
  member Equals : value:obj -> bool
  member GetByteCount : chars:char[] -> int + 3 overloads
  member GetBytes : chars:char[] -> byte[] + 5 overloads
  member GetCharCount : bytes:byte[] -> int + 2 overloads
  ...

Full name: System.Text.Encoding
Multiple items
type TypeProviderAssemblyAttribute =
  inherit Attribute
  new : unit -> TypeProviderAssemblyAttribute
  new : assemblyName:string -> TypeProviderAssemblyAttribute
  member AssemblyName : string

Full name: Microsoft.FSharp.Core.CompilerServices.TypeProviderAssemblyAttribute

--------------------
new : unit -> TypeProviderAssemblyAttribute
new : assemblyName:string -> TypeProviderAssemblyAttribute
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More information

Link:http://fssnip.net/lS
Posted:3 years ago
Author:Zhukoff Dima
Tags: typeprovider , directory , data