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ruby--ruby/lib/coverage.rb
mame f08581c7b6 * ext/coverage/coverage.c, ext/coverage/extconf.rb: eliminate
COVERAGE__ and introduce coverage.so instead.  How to measure
  coverage: (1) require "coverage.so", (2) require or load Ruby source
  file, and (3) Coverage.result will return the same hash as COVERAGE__.
  [ruby-dev:35324]

* thread.c (rb_enable_coverages): start coverage measurement by using
  rb_add_event_hook.

* thread.c (rb_get_coverages): returns current results of coverage
  measurement.

* include/ruby/intern.h: add prototype for above two functions.

* vm_core.h, vm.c: add field of coverages to rb_vm_t.

* insns.def (trace): remove special handling for COVERAGE__.

* iseq.c (prepare_iseq_build): switch COVERAGE__ to
  rb_get_coverages().

* parse.y (coverage): ditto.

* thread.c (clear_coverage): ditto.

* lib/coverage.rb: use coverage.so instead of COVERAGE__.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17857 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2008-07-03 12:55:12 +00:00

58 lines
1.6 KiB
Ruby

require "coverage.so"
ext = ENV["COVERUBY_EXT"] || ".cov"
accum = ENV["COVERUBY_ACCUM"]
accum = !accum || accum == "" || !(%w(f n 0).include?(accum[0]))
pwd = Dir.pwd
at_exit do
Dir.chdir(pwd) do
Coverage.result.each do |sfile, covs|
cfile = sfile + ext
writable = proc do |f|
File.writable?(f) || File.writable?(File.dirname(f))
end
unless writable[cfile]
cfile = cfile.gsub(File.PATH_SEPARATOR, "#")
next unless writable[cfile]
end
readlines = proc do |f|
File.read(f).force_encoding("ASCII-8BIT").lines.to_a
end
sources = (readlines[sfile] rescue [])
pcovs = []
if accum
pcovs = (readlines[cfile] rescue []).map.with_index do |line, idx|
if line[/^\s*(?:(#####)|(\d+)|-):\s*\d+:(.*)$/n]
cov, line = $1 ? 0 : ($2 ? $2.to_i : nil), $3
if !sources[idx] || sources[idx].chomp != line.chomp
warn("source file changed, ignoring: `#{ cfile }'")
break []
end
cov
else
p line
warn("coverage file corrupted, ignoring: #{ cfile }")
break []
end
end
unless pcovs.empty? || pcovs.size == covs.size
warn("coverage file changed, ignoring: `#{ cfile }'")
pcovs = []
end
end
open(cfile, "w") do |out|
covs.zip(sources, pcovs).each_with_index do |(cov, line, pcov), idx|
cov += pcov || 0 if cov
cov = (cov ? (cov == 0 ? "#####" : cov.to_s) : "-").rjust(9)
out.puts("%s:% 5d:%s" % [cov, idx + 1, line])
end
end
end
end
end