Update Filesystem client to make async invocations (C#)

[bernardnormier]

Fixes #308.

[bernardnormier]

I think we should generate a checkedCastAsync ... anything else would be inconsistent.

[pepone]

Adding checkedCastAsync sounds good. On a side note the Slice model for this example isn't great.

I wondering if we should add a NodeInfo struct and NodeKind enum:

enum NodeKind
{
   File,
   Directory
}

struct NodeInfo
{
    string name;
    NodeKind kind;
    Node* node;
}

sequence<NodeInfo> NodeInfoSeq;

interface Directory extends Node
{
    idempotent NodeInfoSeq list();
}

This avoids the need for separate name, checkedCast requests.

[pepone]

Adding checkedCastAsync sounds good. On a side note the Slice model for this example isn't great.

I wondering if we should add a NodeInfo struct and NodeKind enum:

enum NodeKind
{
   File,
   Directory
}

struct NodeInfo
{
    string name;
    NodeKind kind;
    Node* node;
}

sequence<NodeInfo> NodeInfoSeq;

interface Directory extends Node
{
    idempotent NodeInfoSeq list();
}

This avoids the need for separate name, checkedCast requests.

[pepone]

I would add a name variable here.

[bernardnormier]

This demo is really about the power of inheritance. And implementation reuse in C++. So I would not change the model or the checkedCast[Async].