ParseTree version 1.1.0 has been released!
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
As an example:
if arg1 == 0 then
[:call, [:lvar, "arg1"], "==", [:array, [:lit, 0]]],
[:return, [:lit, 1]],
[:return, [:lit, 0]]]]]
+ 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).
sexp_array = ParseTree.new.parse_tree(klass)
class MyProcessor < SexpProcessor
self.strict = false
val = exp.shift
% ./parse_tree_show myfile.rb
% ./parse_tree_abc myfile.rb
+ 2 minor enhancement
+ Added SexpProcessor and CompositeSexpProcessor
+ Allowed show.rb to read from standard input.
+ 3 bug fixes
+ Fixed makefile issues for BSD's make - so dumb.
+ Added super as a call in abc.rb's metrics
+ Commented out a compiler flag to work with GCC 2.95.
Subject: ParseTree 1.1.0 Released