Refactor the internal data format for coverage measurement

To prepare new measuring targets: branch and method coverages.
So far, iseq->coverage was an array of counts executed for line coverage.
Now, it is a three-element array for each measuring target,
whose first element is an array for line coverage.
The second element is planned for branch coverage, and the third will be
for method coverage.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59738 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/vm_core.h b/vm_core.h
index 0105488f60..0c25ff74e6 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -566,6 +566,7 @@ typedef struct rb_vm_struct {
 
     VALUE verbose, debug, orig_progname, progname;
     VALUE coverages;
+    int coverage_mode;
 
     VALUE defined_module_hash;
 
@@ -1686,7 +1687,7 @@ RUBY_SYMBOL_EXPORT_BEGIN
 int rb_thread_check_trap_pending(void);
 
 extern VALUE rb_get_coverages(void);
-extern void rb_set_coverages(VALUE);
+extern void rb_set_coverages(VALUE, int);
 extern void rb_reset_coverages(void);
 
 void rb_postponed_job_flush(rb_vm_t *vm);