Rosetta state of development

This page illustrates the current state of art of Rosetta with respect to the features which should be developed.

Features

Rosetta implements different features which can be divided into categories:

• Syntax constructs translation
• Files and projects handling
• .NET native types handling
• ScriptSharp

Attention All features are enumerated according to Roslyn node types.

Translating C# language syntax nodes

Rosetta has the ability to translate C# language constructs into corresponding/alternative TypeScript ones.

Type declarations

C# language feature	Implemented?	Rank
Class declaration	Yes	100
Interface declaration	Yes	100
Enum declaration	No	80
Struct declaration	No	10
Delegate declaration	No	10

With the following subfeatures:

C# language feature	Implemented?	Rank
Subclassing	Yes	100
Interface implementation	Yes	100
Interface extension	No	80

Statements

C# language feature	Implemented?	Rank
Break statement	No	50
Checked statement	Out of scope
Continue statement	Yes	50
Do statement	No	40
Empty statement	No	40
Expression statement	Yes	100
Fixed statement	No	40
For each statement	No	50
For statement	No	70
Global statement	Out of scope
Goto statement	Out of scope
Labeled statement	No	10
Local declaration statement	Yes	80
Lock statement	Out of scope
Return statement	Yes	100
Switch statement	No	20
Throw statement	Yes	30
Try statement	No	30
Unsafe statement	Out of scope
Using statement	No	30
While statement	No	50
Yield statement	Out of scope

Expressions

C# language feature	Implemented?	Rank
Anonymous function expression	Out of scope
Anonymous method expression	Out of scope
Anonymous object creation expression	Out of scope
Array creation expression	No	5
Arrow expression clause	Out of scope
Assignment expression	Yes	100
Await expression	Out of scope
Base expression	Yes	100
Binary expression	Yes	100
Checked expression	Out of scope
Conditional access expression	No	40
Conditional expression	No	40
Default expression	Out of scope
Element access expression	No	50
Element binding expression	No	20
Implicit array creation expression	No	30
Initializer expression	No	20
Instance expression	No	50
Interpolated string expression	Out of scope
Invocation expression	Yes	80
Lambda expression	Out of scope
Literal expression	Yes	70
Make ref expression	Out of scope
Member access expression	No	60
Member binding expression	No	40
Object creation expression	No	80
Omitted array size expression	No	40
Parenthesized expression	Out of scope
Parenthesized lambda expression	Out of scope
Postfix unary expression	Yes	80
Prefix unary expression	Yes	80
Query expression	Out of scope
Ref type expression	Out of scope
Ref value expression	Out of scope
Simple lambda expression	Out of scope
Sizeof expression	No	5
Stack allocation array creation expression	Out of scope
This expression	Yes	80
Typeof expression	No	5

Miscellaneous

C# language feature	Implemented?	Rank
Lambda expressions	No	10
LINQ	No	10

Output generation

The following features are supported:

C# language feature	Implemented?	Rank
Definition bundle generation	No*	100
Single file definition generation	No*	100
Multiple file definitions generation	No*	100
MSBuild integration	No*	100
Definition generation from project file	Partly	40

Note Entries marked as "No*" are not yet available, but the feature is actually implemented in the codebase. It means that the feature is very likely to be completed soon.