module Coverage

This exists in CRuby, but not in JRuby, so add it

Taken from: github.com/ruby/ruby/blob/c5eb24349a4535948514fe765c3ddb0628d81004/ext/coverage/lib/coverage.rb

Public Class Methods

line_stub(file) click to toggle source

# File lib/coverband/utils/jruby_ext.rb, line 9
def self.line_stub(file)
  lines = File.foreach(file).map { nil }
  iseqs = [RubyVM::InstructionSequence.compile_file(file)]
  until iseqs.empty?
    iseq = iseqs.pop
    iseq.trace_points.each { |n, type| lines[n - 1] = 0 if type == :line }
    iseq.each_child { |child| iseqs << child }
  end
  lines
end