ANN: ParseTree 1.4.0 Released

[Ryan Davis]

ParseTree version 1.4.0 has been released!

http://rubyforge.org/projects/parsetree/
http://www.zenspider.com/ZSS/Products/ParseTree/

** DESCRIPTION:

ParseTree is a C extension (using RubyInline) that extracts the parse
tree for an entire class or a specific method and returns it as a
s-expression (aka sexp) using ruby's arrays, strings, symbols, and
integers.

As an example:

def conditional1(arg1)
if arg1 == 0 then
return 1
end
return 0
end

becomes:

[:defn,
:conditional1,
[:scope,
[:block,
[:args, :arg1],
[:if,
[:call, [:lvar, :arg1], :==, [:array, [:lit, 0]]],
[:return, [:lit, 1]],
nil],
[:return, [:lit, 0]]]]]

** FEATURES/PROBLEMS:

+ Uses RubyInline, so it just drops in.
+ Includes SexpProcessor and CompositeSexpProcessor.
+ Allows you to write very clean filters.
+ Includes show.rb, which lets you quickly snoop code.
+ Includes abc.rb, which lets you get abc metrics on code.
+ abc metrics = numbers of assignments, branches, and calls.
+ whitespace independent metric for method complexity.
+ Only works on methods in classes/modules, not arbitrary code.
+ Does not work on the core classes, as they are not ruby (yet).

http://rubyforge.org/projects/parsetree/
http://www.zenspider.com/ZSS/Products/ParseTree/

Changes:

+ 5 minor enhancements
+ Improved Makefile's install rule, uninstall, and added FILTER
to all.
+ Fixed minor issues w/ Makefile.
+ Added -I=loadpath to parse_tree_abc.
+ Added *args support for methods.
+ Split out sexp to its own file.
+ 2 bug fixes
+ Fixed weird bug in parse_tree_deps where sort was failing on
deps.
+ ! Fixed fatal bug in parse_tree.rb caused by safe_level fix in
ruby 1.8.3.

http://rubyforge.org/projects/parsetree/
http://www.zenspider.com/ZSS/Products/ParseTree/

 

[Kevin Ballard]

Sounds very cool, but do you have any examples of practical
applications?

 

[pat eyler]

Sounds very cool, but do you have any examples of practical
applications?

A nice example (with some explanation) is here:
http://www.zenspider.com/ZSS/Products/ParseTree/Examples/Dependencies.html

Ryan has also shown off an ABC metric code analyzer, most recently at
RubyConf (see
http://www.zenspider.com/dl/RubyConf2005/ZenHacks2005.pdf for info).

 

[pat eyler]

A nice example (with some explanation) is here:
http://www.zenspider.com/ZSS/Products/ParseTree/Examples/Dependencies.htm= l

Ryan has also shown off an ABC metric code analyzer, most recently at
RubyConf (see
http://www.zenspider.com/dl/RubyConf2005/ZenHacks2005.pdf for info).

doh!
http://www.zenspider.com/dl/rubyconf2005/ZenHacks2005.pdf

sorry 'bout the bad link.