RuntimeHelpers.EnumerateUsing<'T,'Collection,'U> Function (F#)

The F# compiler emits calls to this function to implement the use keyword for F# sequence expressions.

Namespace/Module Path: Microsoft.FSharp.Core.CompilerServices.RuntimeHelpers

Assembly: FSharp.Core (in FSharp.Core.dll)

// Signature:
RuntimeHelpers.EnumerateUsing : 'T -> ('T -> 'Collection) -> seq<'U> (requires 'T :> IDisposable and 'Collection :> seq<'U>)

// Usage:
RuntimeHelpers.EnumerateUsing resource source

Parameters

• resource
  Type: 'T

  The resource to be used and disposed.

• source
  Type: 'T -> 'Collection

  The input sequence.

Return Value

The result sequence.

Platforms

Windows 7, Windows Vista SP2, Windows XP SP3, Windows XP x64 SP2, Windows Server 2008 R2, Windows Server 2008 SP2, Windows Server 2003 SP2

Version Information

F# Runtime

Supported in: 2.0, 4.0

Silverlight

Supported in: 3

See Also

Reference

CompilerServices.RuntimeHelpers Module (F#)

Microsoft.FSharp.Core.CompilerServices Namespace (F#)

IDisposable