From: Per Bothner <per@bothner.com>
To: list+org.sourceware.kawa@io7m.com, kawa@sourceware.org
Subject: Re: Are types checked statically?
Date: Thu, 16 Mar 2017 17:23:00 -0000 [thread overview]
Message-ID: <eb4581b6-2c47-9f80-f7d4-596d6a473d30@bothner.com> (raw)
In-Reply-To: <20170316170239.2e6b55d0@copperhead.int.arc7.info>
On 03/16/2017 10:02 AM, list+org.sourceware.kawa@io7m.com wrote:
> Hello!
>
> I'm looking for a scripting language that can be embedded into a Java
> program (ideally via the JSR223 API, but this is not a hard
> requirement). However, one of my requirements is static type checking
> and that tends to limit the options somewhat. As someone who enjoys
> functional programming, I was quite pleased to learn that Kawa existed!
> However, I can't quite make out from the information on the site
> whether or not the types are checked at compilation time or not. I
> appreciate that the distinction is somewhat subtle if "compilation
> time" actually means "when the script is loaded by the running program".
Kawa does support JSR223, though the latter is not a good match for a statically typed language.
Kawa does type-checking at compile-time, and you can either compile in
advance (to class files) or on-the-fly.
You can fine-tune this to some extent:
https://www.gnu.org/software/kawa/Options.html#Options-for-warnings-and-errors
Kawa does optimistic/lenient typing, though I'd be interested in
adding an option for strict typing:
https://www.gnu.org/software/kawa/Ideas-and-tasks.html#Optional-strict-typing-along-with-an-explicit-dynamic-type
Kawa currently doesn't have "function types" - the type of all
functions is just 'procedure' without any specification of
argument or result types. However, the following is on the wish-list:
https://www.gnu.org/software/kawa/Ideas-and-tasks.html#Optimized-function-types-and-values-using-MethodHandles
--
--Per Bothner
per@bothner.com http://per.bothner.com/
next prev parent reply other threads:[~2017-03-16 17:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-16 17:02 list+org.sourceware.kawa
2017-03-16 17:23 ` Per Bothner [this message]
2017-03-16 17:39 ` list+org.sourceware.kawa
2017-03-16 22:57 ` Per Bothner
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