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Contents
module Churn
# Given a ruby file, map the klass and methods to a range of line numbers
# The klass and method to line numbers mappings, are stored in
# @klasses_collection and @methods_collection
# this is based off https://github.com/seattlerb/ruby_parser which seems to have some known line number bugs
# perhaps look at and move more to the style of line numbers from metric_fu
# https://github.com/metricfu/metric_fu/blob/master/lib/data_structures/line_numbers.rb
class LocationMapping < SexpProcessor
attr_reader :klasses_collection, :methods_collection
def initialize()
super
@klasses_collection = {}
@methods_collection = {}
@parser = RubyParser.new
self.auto_shift_type = true
self.require_empty = false
end
def get_info(file)
ast = @parser.process(File.read(file), file)
process ast
end
def process_class(exp)
name = exp.shift
start_line = exp.line
last_line = deep_last_line(exp)
name = name if name.is_a?(Symbol)
name = name.values.value if name.is_a?(Sexp) #deals with cases like class Test::Unit::TestCase
@current_class = name
@klasses_collection[name.to_s] = [] unless @klasses_collection.include?(name)
@klasses_collection[name.to_s] << (start_line..last_line)
analyze_list exp
s()
end
def deep_last_line(exp)
lines = []
exp.deep_each{|x| lines << x.line }
lines.max + 1
end
def analyze_list exp
process exp.shift until exp.empty?
exp
end
def process_defn(exp)
name = exp.shift
start_line = exp.line
last_line = deep_last_line(exp)
full_name = "#{@current_class}##{name}"
@methods_collection[full_name] = [] unless @methods_collection.include?(full_name)
@methods_collection[full_name] << (start_line..last_line)
return s(:defn, name, process(exp.shift), process(exp.shift))
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems