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Patterns.TupleGet Active Pattern (F#)

  • Článek

Recognizes expressions that represent getting a tuple field.

Namespace/Module Path: Microsoft.FSharp.Quotations.Patterns

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

// Signature:
( |TupleGet|_| ) : (input:Expr) -> (Expr * int) option

Parameters

  • input
    Type: Expr

    The input expression to match against.

Return Value

The formal return value is (Expr * int) option. The option type indicates whether there is a successful match. In a pattern matching expression, the input is decomposed, upon a successful match, into a tuple of two elements. The first is an expression that represents the tuple and the second is an integer that represents the zero-based index.

Remarks

This function is named TupleGetPattern in the .NET Framework assembly. If you are accessing the member from a .NET Framework language other than F#, or through reflection, use this name.

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

Quotations.Patterns Module (F#)

Microsoft.FSharp.Quotations Namespace (F#)