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Expr.UnionCaseTest Method (F#)

  • Статья

Creates an expression that represents a test of a value is of a particular union case.

Namespace/Module Path: Microsoft.FSharp.Quotations

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

// Signature:
static member UnionCaseTest : Expr * UnionCaseInfo -> Expr

// Usage:
Expr.UnionCaseTest (source, unionCase)

Parameters

  • source
    Type: Expr

    The expression to test.

  • unionCase
    Type: UnionCaseInfo

    The description of the union case.

Return Value

The resulting expression.

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.Expr Class (F#)

Microsoft.FSharp.Quotations Namespace (F#)