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require "coverage.so"
module Coverage
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, _| lines[n - 1] = 0 }
iseq.each_child {|child| iseqs << child }
end
lines
end
end
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