proc.c: assume rb_iseq_location_t::first_lineno is always a Fixnum

Do not check for the value of rb_iseq_constant_body::line_info_table as
it is no longer related. The checks seem to be the remains from the day
before the dedicated 'first_lineno' field was introduced. Remove them.

Note, rb_iseq_constant_body::line_info_table can be NULL only when the
iseq does not contain any instructions that originate from Ruby code,
for example, an iseq created with 'proc {}' under a non-default compile
options where trace instructions are disabled.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57118 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 8 deletions

diff --git a/thread.c b/thread.c
index 70a438c3b9..11f325b8a4 100644
--- a/thread.c
+++ b/thread.c
@@ -788,19 +788,13 @@ thread_initialize(VALUE thread, VALUE args)
     }
     GetThreadPtr(thread, th);
     if (th->first_args) {
-	VALUE proc = th->first_proc, line, loc;
-	VALUE file;
+	VALUE proc = th->first_proc, loc;
         if (!proc || !RTEST(loc = rb_proc_location(proc))) {
             rb_raise(rb_eThreadError, "already initialized thread");
         }
-	file = RARRAY_AREF(loc, 0);
-	if (NIL_P(line = RARRAY_AREF(loc, 1))) {
-	    rb_raise(rb_eThreadError,
-		     "already initialized thread - %"PRIsVALUE, file);
-	}
         rb_raise(rb_eThreadError,
 		 "already initialized thread - %"PRIsVALUE":%"PRIsVALUE,
-                 file, line);
+                 RARRAY_AREF(loc, 0), RARRAY_AREF(loc, 1));
     }
     return thread_create_core(thread, args, 0);
 }