To produce optional parameters for a method from an interface reflected in Roslyn, you can use the Optional
attribute from the System.Runtime.InteropServices
namespace. Here's an example code snippet:
using System.Runtime.InteropServices;
interface IMyInterface
{
void MyMethod(int x, [Optional] int y);
}
class MyClass : IMyInterface
{
public void MyMethod(int x, [Optional] int y)
{
// method implementation
}
}
In this example, we have an interface IMyInterface
with a method MyMethod
. The second parameter y
is marked as optional using the [Optional]
attribute.
When implementing the interface in a concrete class MyClass
, we can omit the y
parameter if we don't need it. This allows callers of the method to provide only the necessary parameters without having to specify a value for y
if it's not needed.
Note that in order to use the [Optional]
attribute, you need to ensure that the System.Runtime.InteropServices
namespace is included in your project.
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Asked: 2023-06-17 19:15:52 +0000
Seen: 10 times
Last updated: Jun 17 '23
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