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5874de95e8
for casual use. Usage: (1) assign {} to COVERAGE__, (2) require or
load Ruby source file, and (3) COVERAGE__["sourcefilepath"] will
return an array whose elements represent number of executions per
line of source code.
* vm_core.h: add field of coverage array to iseq.
* iseq.c (prepare_iseq_build): ditto.
* insns.def (trace): update coverage array.
* parse.y (coverage): create and initialize coverage array.
* compile.h (ADD_TRACE): add trace instruction to update covearge
array.
* thread.c (clear_coverage): delete coverage array when forking.
Otherwise, double count of coverage may occur.
* lib/coverage.rb: sample coverage measurement tool.
* error.c: distinguish explicitly between parse_in_eval and
mild_compile_error.
* load.c: ditto.
* vm_eval.c: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17781 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
57 lines
1.6 KiB
Ruby
57 lines
1.6 KiB
Ruby
COVERAGE__ ||= {}
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ext = ENV["COVERUBY_EXT"] || ".cov"
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accum = ENV["COVERUBY_ACCUM"]
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accum = !accum || accum == "" || !(%w(f n 0).include?(accum[0]))
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pwd = Dir.pwd
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at_exit do
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Dir.chdir(pwd) do
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COVERAGE__.each do |sfile, covs|
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cfile = sfile + ext
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writable = proc do |f|
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File.writable?(f) || File.writable?(File.dirname(f))
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end
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unless writable[cfile]
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cfile = cfile.gsub(File.PATH_SEPARATOR, "#")
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next unless writable[cfile]
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end
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readlines = proc do |f|
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File.read(f).force_encoding("ASCII-8BIT").lines.to_a
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end
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sources = (readlines[sfile] rescue [])
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pcovs = []
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if accum
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pcovs = (readlines[cfile] rescue []).map.with_index do |line, idx|
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if line[/^\s*(?:(#####)|(\d+)|-):\s*\d+:(.*)$/n]
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cov, line = $1 ? 0 : ($2 ? $2.to_i : nil), $3
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if !sources[idx] || sources[idx].chomp != line.chomp
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warn("source file changed, ignoring: `#{ cfile }'")
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break []
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end
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cov
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else
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p line
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warn("coverage file corrupted, ignoring: #{ cfile }")
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break []
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end
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end
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unless pcovs.empty? || pcovs.size == covs.size
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warn("coverage file changed, ignoring: `#{ cfile }'")
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pcovs = []
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end
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end
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open(cfile, "w") do |out|
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covs.zip(sources, pcovs).each_with_index do |(cov, line, pcov), idx|
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cov += pcov || 0 if cov
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cov = (cov ? (cov == 0 ? "#####" : cov.to_s) : "-").rjust(9)
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out.puts("%s:% 5d:%s" % [cov, idx + 1, line])
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end
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end
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end
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end
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end
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