Patterns.IfThenElse Active Pattern (F#)
Recognizes expressions that represent conditionals.
Namespace/Module Path: Microsoft.FSharp.Quotations.Patterns
Assembly: FSharp.Core (in FSharp.Core.dll)
The formal return type is (Expr * Expr * Expr) option. The option determines whether there is a match. In a pattern matching expression, the input is decomposed upon a match into a tuple of three expressions. The first element is the test condition. The second element is the expression after the then keyword that is executed if the test condition is true. The third element is the expression after the else keyword.