Question

In wf4, you can bind variables and constants to InArguments or OutArguments in 2 ways,
using the explicit syntax:

Variable<string> nameOfPerson = new Variable<string>();

new Assign { 
  To = new OutArgument<string>(nameOfPerson),
  Value = new InArgument<string>("Name")
}

or you can use the implicit syntax

new Assign {
    To = nameOfPerson,
    Value = "Name"
}

Are there any disadvantages using the second syntax, such as maybe performance?

UPDATE

Apparently,

new Assign { 
    To = nameOfPerson,
    Value="name"
}

does not work, but this does work

new Assign {
    To = new OutArgument<string>(nameOfPerson),
    Value = new InArgument<string>("name")
} 

for the Value property, you can use implicit:

var anotherVariable = new Variable<string();

new Assign {
    To = new OutArgument<string>(nameOfPerson),
    Value = anotherVariable
}

It’s confusing when you can use implicit and when not

Answer 1

Not really, in the end the same code executes. The only extra code is the implicit cast from Variable to InArgument but that is just a constructor call so no extra overhead.