* eval.c, intern.h (rb_svar): return reference to special variable

  from local variable index. [new]

* eval.c (rb_eval): use rb_svar() for NODE_FLIP{2,3}.

* parse.y (rb_(backref|lastline)_(get|set)): access via rb_svar().

* eval.c (proc_invoke): push dynamic variables.

* eval.c (rb_thread_yield): push special variables as dynamic
  variables($_, $~ and FLIP states).


* intern.h, parse.y (rb_is_local_id): return true if the ID is
  local symbol. [new]

* parse.y (internal_id): make new ID for internal use. [new]

* parse.y (cond0): allocate internal ID for NODE_FLIP{2,3}.

* eval.c (rb_f_local_variables): use rb_is_local_id() to select
  visible local variables.


* eval.c (rb_thread_start_0): SCOPE_SHARED is removed.

* eval.c, intern.h (rb_thread_scope_shared_p): removed. special
  variables are no longer shared by threads.

* re.c (rb_reg_search): MATCHDATA is no longer shared by threads.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1752 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 6 deletions

diff --git a/re.c b/re.c
index 7e57b856c1..a35851f36d 100644
--- a/re.c
+++ b/re.c
@@ -645,12 +645,7 @@ rb_reg_search(re, str, pos, reverse)
 	return result;
     }
 
-    if (rb_thread_scope_shared_p()) {
-	match = Qnil;
-    }
-    else {
-	match = rb_backref_get();
-    }
+    match = rb_backref_get();
     if (NIL_P(match) || FL_TEST(match, MATCH_BUSY)) {
 	match = match_alloc();
     }