* 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: http://svn.ruby-lang.org/repos/ruby/trunk@17857 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/ext/coverage/coverage.c b/ext/coverage/coverage.c
new file mode 100644
index 000000000..a56a40866
--- /dev/null
+++ b/ext/coverage/coverage.c
@@ -0,0 +1,11 @@
+#include "ruby.h"
+
+VALUE rb_mCoverage;
+
+void
+Init_coverage(void)
+{
+    rb_enable_coverages();
+    rb_mCoverage = rb_define_module("Coverage");
+    rb_define_module_function(rb_mCoverage, "result", rb_get_coverages, 0);
+}