Re: [jruby-user] Can I enable invokedynamic in JRUBYC command

I can't answer your jrubyc question, but have you tried -Xcompile.dump=true
with jruby rather than jrubyc? I can see the indy instructions when I use
this.

This lets you see the byte code generated. It's not in a class file, but if
you really want a file on disk for some reason you could probably write the
generated code to disk instead of passing it to a class loader when JRuby
compiles it.

Chris


On 8 August 2014 00:58, O. L. <[email protected]> wrote:

> Hi I've read from the JRuby release log here
> http://www.jruby.org/2013/10/07/jruby-1-7-5.html that the invokedynamic
> has been disabled since JRuby 1.7.5. However, it still can be enabled
> using -Xcompile.invokedynamic=true command.
>
> I'm currently working on a research project in which I need to produce
> the java class files explicitly and analyze those invokedynamic commands
> in the byte codes. I tried to use a JRuby version later than 1.7.4 and
> issued the following command:
>
> jrubyc Xcompile.invokedynamic=true myfile.rb
>
> But I get the following error:
>
>     OptionParser::InvalidOption: invalid option:
> -Xcompile.invokedynamic=true
>         complete at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:1542
>            catch at org/jruby/RubyKernel.java:1282
>         complete at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:1540
>   parse_in_order at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:1380
>            catch at org/jruby/RubyKernel.java:1282
>   parse_in_order at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:1347
>           order! at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:1341
>         permute! at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:1432
>           parse! at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:1453
>     compile_argv at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/shared/jruby/compiler.rb:83
>       initialize at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/1.9/optparse.rb:882
>     compile_argv at
> /Users/x5lai/.rvm/rubies/jruby-1.7.5/lib/ruby/shared/jruby/compiler.rb:35
>           (root) at /Users/x5lai/.rvm/rubies/jruby-1.7.5/bin/jrubyc:5
>
>
> Is it that this command flag is only present for the 'jruby' command and
> not the 'jrubyc' command? Is there an equivalent parameter in jrubyc
> command that I could turn on the invokedynamic in the byte codes
> produced?
>
> --
> Posted via http://www.ruby-forum.com/.
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