ParseTree: November 2008 Archives

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]]]]]

Changes:

3.0.2 / 2008-11-04

• 1 minor enhancement:

  • parsetreeshow now defaults to unified, added -U to UNunify output.

• 4 bug fixes:

  • UnifiedRuby#rewrite_defn kinda sorta deals with cfunc now. Stupid rails.
  • Fixed ambiguities in splatted nodes in a bunch of contexts.
  • Fixed 1 arg form of parsetreefor_proc
  • KNOWN ISSUE: 0 arg form (||) of parsetreefor_proc segfaults.

• http://rubyforge.org/projects/parsetree/

• http://www.zenspider.com/ZSS/Products/ParseTree/
• ryand-ruby@zenspider.com