Jamaica looks interesting...probably a lot JVMScript could steal from it. Largely the reason I wrote JVMScript the way I did was to allow using it as an API (which I do in Duby) and because as an internal DSL you have all Ruby constructs to use as well. So defining a new macro is as simple as defining a Ruby method that calls the same opcode methods. Indeed, the "println" method I provide is just a sequence of calls to opcodes to do a println.
Looking forward to getting feedback from JVMScript users. I'm pushing for an initial release of both JVMScript and Duby soon. Rastislav Kassak wrote: > Jamaica from Judoscript is a bit similar but with more java-like > syntax: http://www.judoscript.org/articles/jamaica.html. > > It's build on top of ASM or BCEL, but I guess it's outdated as the > last release is from 2005. > > However, JVMScript looks much better. It's Ruby after all. :) > Thanks Charlie, I'll try it. > > On 10/14/08, René Jansen <[EMAIL PROTECTED]> wrote: >> Hi Charlie, >> >> thanks for sharing this, it looks most useful. I downloaded and ran it; the >> testcases run ok. I cannot figure out how to make it write MyClass.class; >> please forgive me my Ruby-ignorance here. I removed the things I though to >> be for the testcase only, and have it execute outside of a method. It >> executes ok, but Erik Meijer would be very happy: there are no side-effects. >> That I know of. >> >> best regards and thanks in advance. >> >> René. >> >> >> On Fri, Oct 10, 2008 at 7:58 PM, Charles Oliver Nutter >> <[EMAIL PROTECTED]> wrote: >> >>> >>> >>> >>> René Jansen wrote: >>>> Just a quick question: which assembler are you guys using for >>>> experimentation? I find myself wanting to try out some things, but I am >>>> in a bind between ooLong and Jasmin or maybe ASM. Is there an unofficial >>>> official assembler, preferably something with macros (old s/370 bal >>>> programmer that I am) and its own disassembler. >>>> >>>> I noticed there is a class called Assembler in the tools sources, is >>>> this only usable from javac or is it addressable in any other way? >>>> >>>> If no disassembler goes with the package, I would prefer something that >>>> is close enough to javap that I can write a small thingy to rearrange >>>> its output into something that I can assemble - something that ASM can >>>> but in a very verbose way. >>>> >>>> Please let me know what you use. >>> I'm using ASM exclusively, but usually wrapped behind one of my own shims. >>> >>> Either this super-trivial shim that just exposes a method-per-opcode: >>> >>> http://is.gd/3RsP >>> >>> Or my unreleased Ruby DSL for ASM, "JVMScript": >>> >>> http://kenai.com/projects/jvmscript >>> >>> The latter is probably more interesting to you, but obviously has a >>> dependency on JRuby. Perhaps that's not a problem for your toolchain. >>> >>> Here's a short sample: >>> >>> builder = >> Compiler::FileBuilder.build("somefile.source") do >>> package "org.awesome", "stuff" do >>> public_class "MyClass", object do >>> public_field "list", ArrayList >>> >>> public_constructor string, ArrayList do >>> aload 0 >>> invokespecial object, "<init>", [void] >>> aload 0 >>> aload 1 >>> aload 2 >>> invokevirtual this, "bar", [ArrayList, string, ArrayList] >>> aload 0 >>> swap >>> putfield this, "list", ArrayList >>> returnvoid >>> end >>> >>> public_static_method "foo", this, string do >>> new this >>> dup >>> aload 0 >>> new ArrayList >>> dup >>> invokespecial ArrayList, "<init>", [void] >>> invokespecial this, "<init>", [void, string, ArrayList] >>> areturn >>> end >>> >>> public_method "bar", ArrayList, string, ArrayList do >>> aload 1 >>> invokevirtual(string, "toLowerCase", string) >>> aload 2 >>> swap >>> invokevirtual(ArrayList, "add", [boolean, object]) >>> aload 2 >>> areturn >>> end >>> >>> public_method("getList", ArrayList) do >>> aload 0 >>> getfield this, "list", ArrayList >>> areturn >>> end >>> >>> public_static_method("main", void, string[]) do >>> aload 0 >>> ldc_int 0 >>> aaload >>> invokestatic this, "foo", [this, string] >>> invokevirtual this, "getList", ArrayList >>> aprintln >>> returnvoid >>> end >>> end >>> end >>> end >>> >>> - Charlie >>> >>> >>> >>> >> >> > >> > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "JVM Languages" group. To post to this group, send email to jvm-languages@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/jvm-languages?hl=en -~----------~----~----~----~------~----~------~--~---
