Just join the mailing lists on the kenai project page. I've been the only consumer up to now, so I appreciate your input. We can look at cleaning it up, building out more tests, and putting out a release version.
http://kenai.com/projects/jvmscript - Charlie René Jansen wrote: > Hi Charlie, > > I see; it works. What is the best forum for feedback? > > For starters, it took me a minute to understand that void is used as a > method return type, but is left out as a method argument. This is no > problem as long as it is stated somewhere in block letters (avoiding the > words large type here). > > Let me know if it is this forum or somewhere else. > > Thanks for the tool and your help, > > best regards, > > René. > > On Tue, Oct 14, 2008 at 1:19 PM, Charles Oliver Nutter > <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote: > > > I need to provide some better examples, but the missing bit of code is > generating the class files after you've done the building process: > > builder.generate do |filename, class_builder| > File.open(filename, 'w') {|f| f.write(class_builder.generate)} > end > > The generate method on the main builder passes the .class filename and > the ClassBuilder for each class. ClassBuilder#generate produces the > bytes for the class. > > Note that I've never released JVMScript officially, but I want to; if > you start playing around with it, keep in mind the following: > > 1. I'm interested in input and willing to make changes before doing a > release > 2. The Compiler namespace will probably become JVMScript > > So a shorter, more complete example: > > ~/projects/duby ➔ cat simple.rb > require 'jvmscript' > > builder = Compiler::FileBuilder.build('simple.source') do > public_class 'simple', object do > public_static_method 'main', void, string[] do > aload 0 > ldc_int 0 > aaload > aprintln > end > end > end > > builder.generate do |file, cls| > File.open(file, 'w') {|f| f.write(cls.generate)} > end > > ~/projects/duby ➔ jruby -I ../jvmscript/lib simple.rb > > ~/projects/duby ➔ javap -c simple > Compiled from "simple.source" > public class simple extends java.lang.Object{ > public static void main(java.lang.String[]); > Code: > 0: aload_0 > 1: ldc #8; //int 0 > 3: aaload > 4: dup > 5: getstatic #14; //Field > java/lang/System.out:Ljava/io/PrintStream; > 8: swap > 9: invokevirtual #20; //Method > java/io/PrintStream.println:(Ljava/lang/Object;)V > > } > > - Charlie > > René Jansen 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] <mailto:[EMAIL PROTECTED]> > <mailto:[EMAIL PROTECTED] <mailto:[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 -~----------~----~----~----~------~----~------~--~---
