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ruby-changes:4630

From: ko1@a...
Date: Mon, 21 Apr 2008 17:21:08 +0900 (JST)
Subject: [ruby-changes:4630] knu - Ruby:r16124 (ruby_1_8): * eval.c (rb_f_method_name): New gloval function: __method__;

knu	2008-04-21 17:20:52 +0900 (Mon, 21 Apr 2008)

  New Revision: 16124

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/NEWS
    branches/ruby_1_8/eval.c
    branches/ruby_1_8/intern.h

  Log:
    * eval.c (rb_f_method_name): New gloval function: __method__;
      backported from matzruby / 1.9.
    
    * eval.c (rb_frame_this_func), intern.h: New internal function.
    
    * intern.h (RETURN_ENUMERATOR): Use rb_frame_this_func() instead
      of rb_frame_last_func(), to accommodate the behavior to that of
      1.9.


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/intern.h?r1=16124&r2=16123&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/ChangeLog?r1=16124&r2=16123&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/NEWS?r1=16124&r2=16123&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/eval.c?r1=16124&r2=16123&diff_format=u

Index: ruby_1_8/intern.h
===================================================================
--- ruby_1_8/intern.h	(revision 16123)
+++ ruby_1_8/intern.h	(revision 16124)
@@ -133,7 +133,7 @@
 VALUE rb_enumeratorize _((VALUE, VALUE, int, VALUE *));
 #define RETURN_ENUMERATOR(obj, argc, argv) do {				\
 	if (!rb_block_given_p())					\
-	    return rb_enumeratorize(obj, ID2SYM(rb_frame_last_func()),	\
+	    return rb_enumeratorize(obj, ID2SYM(rb_frame_this_func()),	\
 				    argc, argv);			\
     } while (0)
 /* error.c */
@@ -180,6 +180,7 @@
 VALUE rb_apply _((VALUE, ID, VALUE));
 void rb_backtrace _((void));
 ID rb_frame_last_func _((void));
+ID rb_frame_this_func _((void));
 VALUE rb_obj_instance_eval _((int, VALUE*, VALUE));
 VALUE rb_mod_module_eval _((int, VALUE*, VALUE));
 void rb_load _((VALUE, int));
Index: ruby_1_8/NEWS
===================================================================
--- ruby_1_8/NEWS	(revision 16123)
+++ ruby_1_8/NEWS	(revision 16124)
@@ -232,6 +232,11 @@
 
     Return an enumerator if no block is given.
 
+  * __method__
+
+    New global function that returns the name of the current method as
+    a Symbol.
+
 * enumerator
 
   * Enumerator is now a built-in module.  The #next and #rewind
Index: ruby_1_8/ChangeLog
===================================================================
--- ruby_1_8/ChangeLog	(revision 16123)
+++ ruby_1_8/ChangeLog	(revision 16124)
@@ -1,3 +1,21 @@
+Mon Apr 21 17:19:52 2008  Akinori MUSHA  <knu@i...>
+
+	* eval.c (rb_f_method_name): New gloval function: __method__;
+	  backported from matzruby / 1.9.
+
+	* eval.c (rb_frame_this_func), intern.h: New internal function.
+
+	* intern.h (RETURN_ENUMERATOR): Use rb_frame_this_func() instead
+	  of rb_frame_last_func(), to accommodate the behavior to that of
+	  1.9.
+
+Mon Apr 21 15:54:48 2008  Yukihiro Matsumoto  <matz@r...>
+
+	* lib/tempfile.rb (Tempfile::_close): check @data before modifying
+	  it; backported from 1.9.  [ruby-dev:34094]
+
+	* lib/tempfile.rb (Tempfile::close): clear @data and @tmpname.
+
 Mon Apr 21 10:17:17 2008  NAKAMURA Usaku  <usa@r...>
 
 	* time.c: should include <errno.h> to refer errno.
@@ -113,13 +131,6 @@
 	  test/uri/test_ftp.rb, test/uri/test_generic.rb: backported from 1.9.
 	  [ruby-dev:31318]
 
-Wed Apr 16 14:22:42 2008  Yukihiro Matsumoto  <matz@r...>
-
-	* lib/tempfile.rb (Tempfile::_close): check @data before modifying
-	  it backported from 1.9.  [ruby-dev:34094]
-
-	* lib/tempfile.rb (Tempfile::close): clear @data and @tmpname.
-
 Wed Apr 16 06:03:45 2008  Akinori MUSHA  <knu@i...>
 
 	* test/ruby/test_settracefunc.rb (TestSetTraceFunc#test_event):
Index: ruby_1_8/eval.c
===================================================================
--- ruby_1_8/eval.c	(revision 16123)
+++ ruby_1_8/eval.c	(revision 16124)
@@ -6407,6 +6407,12 @@
     return ruby_frame->last_func;
 }
 
+ID
+rb_frame_this_func()
+{
+    return ruby_frame->orig_func;
+}
+
 static NODE*
 compile(src, file, line)
     VALUE src;
@@ -7990,6 +7996,37 @@
     ruby_safe_level = safe;
 }
 
+/*
+ *  call-seq:
+ *     __method__         => symbol
+ *  
+ *  Returns the name of the current method as a Symbol.
+ *  If called from inside of an aliased method it will return the original
+ *  nonaliased name.
+ *  If called outside of a method, it returns <code>nil</code>.
+ *  
+ *    def foo
+ *      __method__
+ *    end
+ *    alias bar foo
+ *    
+ *    foo                # => :foo
+ *    bar                # => :foo
+ *
+ */
+
+static VALUE
+rb_f_method_name()
+{
+    struct FRAME* prev = ruby_frame->prev;
+    if (prev && prev->orig_func) {
+	return ID2SYM(prev->orig_func);
+    }
+    else {
+	return Qnil;
+    }
+}
+
 void
 Init_eval()
 {
@@ -8046,6 +8083,8 @@
     rb_define_global_function("global_variables", rb_f_global_variables, 0); /* in variable.c */
     rb_define_global_function("local_variables", rb_f_local_variables, 0);
 
+    rb_define_global_function("__method__", rb_f_method_name, 0);
+
     rb_define_method(rb_mKernel, "send", rb_f_send, -1);
     rb_define_method(rb_mKernel, "__send__", rb_f_send, -1);
     rb_define_method(rb_mKernel, "instance_eval", rb_obj_instance_eval, -1);

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