* thread.c: add `Thread#backtrace_locations' method.

  This method is similart to `caller_locations' method for
  specific method.
  And fix to accept `level' and `n' parameters for `Thread#backtrace'
  and `Thread#backtrace_locations'.
  `caller' (and `caller_locations') do not return `caller' method
  frame.
  However, `Thread#backtrace' (and `Thread#backtrace_locations')
  return `Thread#backtrace' method frame itself
  if `Thread.current.backtrace' was called.
* vm_backtrace.c: ditto.
* internal.h: ditto.
* test/ruby/test_backtrace.rb: add tests.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37716 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/internal.h b/internal.h
index 1ea0ca9f45..508fae3c18 100644
--- a/internal.h
+++ b/internal.h
@@ -310,7 +310,9 @@ void Init_prelude(void);
 
 /* vm_backtrace.c */
 void Init_vm_backtrace(void);
-VALUE rb_thread_backtrace(VALUE thval);
+VALUE vm_thread_backtrace(int argc, VALUE *argv, VALUE thval);
+VALUE vm_thread_backtrace_locations(int argc, VALUE *argv, VALUE thval);
+
 VALUE rb_make_backtrace(void);
 void rb_backtrace_print_as_bugreport(void);
 int rb_backtrace_p(VALUE obj);