* compile.c, iseq.c, ruby.c, vm.c, vm_core.h, vm_eval.c: add absolute

  path field into rb_iseq_t.  The field contains a string representing
  a path to corresponding source file. or nil when the iseq is created
  from -e, stdin, eval, etc.  This field is used for require_relative.
  [ruby-dev:40004]

* load.c (rb_f_require_relative): add C implementation of
  require_relative.

* prelude.rb (require_relative): get rid of Ruby implementation of
  require_relative.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26959 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/vm_eval.c b/vm_eval.c
index 2e011c7b7e..0ce4b8f45d 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -1709,6 +1709,16 @@ rb_f_block_given_p(void)
     }
 }
 
+VALUE
+rb_current_realfilepath(void)
+{
+    rb_thread_t *th = GET_THREAD();
+    rb_control_frame_t *cfp = th->cfp;
+    cfp = vm_get_ruby_level_caller_cfp(th, RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp));
+    if (cfp != 0) return cfp->iseq->filepath;
+    return Qnil;
+}
+
 void
 Init_vm_eval(void)
 {