* 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, 2 insertions, 1 deletions

diff --git a/intern.h b/intern.h
index 0fcdf5ac21..4ea537c951 100644
--- a/intern.h
+++ b/intern.h
@@ -133,6 +133,7 @@ VALUE rb_dvar_curr _((ID));
 VALUE rb_dvar_ref _((ID));
 void rb_dvar_asgn _((ID, VALUE));
 void rb_dvar_push _((ID, VALUE));
+VALUE *rb_svar _((int));
 VALUE rb_eval_cmd _((VALUE, VALUE));
 int rb_respond_to _((VALUE, ID));
 void rb_interrupt _((void));
@@ -170,7 +171,6 @@ VALUE rb_thread_stop _((void));
 VALUE rb_thread_wakeup _((VALUE));
 VALUE rb_thread_run _((VALUE));
 VALUE rb_thread_create _((VALUE (*)(ANYARGS), void*));
-int rb_thread_scope_shared_p _((void));
 void rb_thread_interrupt _((void));
 void rb_thread_trap_eval _((VALUE, int));
 void rb_thread_signal_raise _((char*));
@@ -269,6 +269,7 @@ void rb_parser_while_loop _((int, int));
 int rb_is_const_id _((ID));
 int rb_is_instance_id _((ID));
 int rb_is_class_id _((ID));
+int rb_is_local_id _((ID));
 VALUE rb_backref_get _((void));
 void rb_backref_set _((VALUE));
 VALUE rb_lastline_get _((void));