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47ea999b46
This patch introduces "oneshot_lines" mode for `Coverage.start`, which checks "whether each line was executed at least once or not", instead of "how many times each line was executed". A hook for each line is fired at most once, and after it is fired, the hook flag was removed; it runs with zero overhead. See [Feature #15022] in detail. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65195 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
14 lines
348 B
Ruby
14 lines
348 B
Ruby
require "coverage.so"
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module Coverage
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def self.line_stub(file)
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lines = File.foreach(file).map { nil }
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iseqs = [RubyVM::InstructionSequence.compile_file(file)]
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until iseqs.empty?
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iseq = iseqs.pop
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iseq.trace_points.each {|n, _| lines[n - 1] = 0 }
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iseq.each_child {|child| iseqs << child }
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end
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lines
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end
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end
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