ParseTree version 1.5.0 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 parse_tree_show, which lets you quickly snoop code.
- echo “1+1” | parse_tree_show -f for quick snippet output.
Includes parse_tree_abc, which lets you get abc metrics on code.
- abc metrics = numbers of assignments, branches, and calls.
- whitespace independent metric for method complexity.
Includes parse_tree_deps, which shows you basic class level
Only works on methods in classes/modules, not arbitrary code.
Does not work on the core classes, as they are not ruby (yet).
5 minor enhancements:
Added reporting of unsupported nodes that have processors.
YAY! class method support! generated as :“self.blah”
Converted Rakefile+gemspec to Hoe-based Rakefile.
6 bug fixes:
Did some preliminary work on 1.9 compatibility.
Fixed tests for some changes/clarifications.
Fixed resbody: should have nil exceptions list when no exception
Fixed op_asgn1 and op_asgn2.
Fixed incompatibility with new inline changes.
Fixed VALUE decl in parse_tree.rb