Feature request: Extend expression body to event

[Orace]

Consider this .Net 3.5 code:

interface ISubject
{
    int Value { get; set; }
    event Action<int> ValueChanged;
}

class Wrapper : ISubject
{
    ISubject subject;

    public int Value
    {
        get { return subject.Value; }
        set { subject.Value = value; }
    }

    public event Action<int> ValueChanged
    {
        add { subject.ValueChanged += value; }
        remove { subject.ValueChanged -= value; }
    }
}

The get/set and add/remove code are just boilerplates code.

C# 6.0 has introduced expression-bodied members:

class Wrapper : ISubject
{
    ISubject subject;

    public int Value
    {
        get => subject.Value;
        set => subject.Value = value;
    }

    public event Action<int> ValueChanged
    {
        add => subject.ValueChanged += value;
        remove => subject.ValueChanged -= value;
    }
}

In this case not really a big improvement.
The subject of this proposition is to reduce the code used for the event to this:

    public event Action<int> ValueChanged => subject.ValueChanged;

[Orace]

Much forward something more generic to delegate simply a property getter and/or setter to another property is missing.

Actually only the readonly property case is simplifiable with:

    public int Getter => subject.Getter;

Something like:

    public int Value <=> subject.Value;
    public int Value { get; set; } is subject.Value;
    ...

Is really missing.

[yaakov-h]

public int Value <=> subject.Value is a duplicate feature request. See #1007.