digitalmars.D - From next C#
- bearophile (16/16) Apr 05 2014 Upcoming features in C# (the text contains some extraneous chars,
- Idan Arye (15/30) Apr 06 2014 Returning a tuple is nice, but isn't the D way to return an
like in the 0b0010\_1110; literal): https://gist.github.com/anonymous/9997622 Declaring out arguments at the calling point is nice, but returning a tuple as in Python/Haskell is better: GetCoordinates(out var x, out var y); It's also nice the syntax to define struct/class members with the same name as class arguments as in Scala/TypeScript. But in D you can't use this syntax because those are template arguments: class Customer(string first, string last) { A solution is to use two groups, as for functions (but the default is the opposite for functions): class Customer()(private const string first, private const string last) { Bye, bearophile
Apr 05 2014
On Saturday, 5 April 2014 at 21:17:53 UTC, bearophile wrote:chars, like in the 0b0010\_1110; literal): https://gist.github.com/anonymous/9997622 Declaring out arguments at the calling point is nice, but returning a tuple as in Python/Haskell is better: GetCoordinates(out var x, out var y);Returning a tuple is nice, but isn't the D way to return an "anonymous" struct(well, yes, it has a name, but that name is only defined inside the function that returns it...)? control structures. Imagine using `TryParse` in the condition expression of an `if` statement, declaring there an out parameter that'll only be accessible in the scope of the `if` statement.It's also nice the syntax to define struct/class members with the same name as class arguments as in Scala/TypeScript. But in D you can't use this syntax because those are template arguments: class Customer(string first, string last) { A solution is to use two groups, as for functions (but the default is the opposite for functions): class Customer()(private const string first, private const string last) {Instead of this confusing syntax, how about making them regular fields and marking them with a attribute that'll make the compiler add them to the default constructor: class Customer{ default string first; default string last; }
Apr 06 2014