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Re: [ANN] Literaljson 0.1

by Daniel Sobral :: Rate this Message:

Oh, the trait thing is just an implicit import of implicits. :-) It forces the scope to be a class or object, though.

The only suggestion I can think of is creating a JSON "Nil" json object, so that every json expression would be started like "JSON ~ ...", thus foregoing the need for an implicit. Naturally, "~" in object JSON would be defined as returning a json instance of the pair/list to it's right.

Does that make sense? Do you feel it would overburden the syntax?

On Thu, Jul 9, 2009 at 1:36 AM, Joni Freeman <joni.freeman@...> wrote:

I agree that such implicit conversions should preferably be targeted for
more specific types. But I couldn't figure out any solution without
sacrificing the readability of DSL. I'm open for any suggestions, the
implementation is just a thin layer on top of AST and can be tweaked
easily.

The DSL is defined in object JsonDSL and needs to be imported into
scope. Scala allows import statements in many places thus it is already
possible to control the scope of those implicits (*). I'm not sure what
would it buy to move the definitions inside a trait. Or am I missing
something?

(*)
object scopetest extends Application {
println("hello")

{
import literaljson.JsonDSL._
val foo = ("foo" -> 1) ~ ("bar" -> 2)
println(foo)
}

println("world")
}

Cheers Joni

On Wed, 2009-07-08 at 17:26 -0300, Daniel Sobral wrote:
> I'm not sure I like the implicit that adds "~" to Tuple2. I think this
> kind of stuff should either require a domain-specific type, or be
> defined inside a trait, so that it is easier to control it's scope.
>
> On Wed, Jul 8, 2009 at 1:39 PM, Joni Freeman <joni.freeman@...>
> wrote:
> JSON toolkit for Scala
> http://github.com/jonifreeman/literaljson/tree/master
>
> Features:
>
> * DSL to create JSON
> * Quite fast parser, 200 times faster than standard Scala JSON
> parser
> according to one benchmark:
> http://github.com/jonifreeman/literaljson/tree/be575a9eda0f2cee75d2665ef48aa4abf601c06d/benchmark
> * Compact formatting
> * Pretty printing
> * XPath like queries
>
> Cheers, Joni
>
>
>
>
>
>
> --
> Daniel C. Sobral
>
> Something I learned in academia: there are three kinds of academic
> reviews: review by name, review by reference and review by value.

--
Daniel C. Sobral

Something I learned in academia: there are three kinds of academic reviews: review by name, review by reference and review by value.

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