Implement A Class's Declared Interface Through A Primary Constructor Parameter Object (Generate Boilerplate Implicitly)

[steevcoco]

It seems possible that the compiler could generate code for an interface implementation, by delegating to a primary constructor's parameter with that type.

For example:

`
public interface IPartial
{
string Name { get; }
}

public class NamedList(IList list, string name)
: IList from list,
IPartial
{
public string Name
=> name;
}
`

Since the Type of the constructor's IList parameter is known, then a "boilerplate" interface implementation of IList could be generated that simply invokes the given object.

[En3Tho]

Can be done with a source generator using specific rules you define.

[huoyaoyuan]

#234 #5514