From a55c6429b99d11f480471a2b0f1cd9a67e3034b6 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 11 May 2005 16:21:33 +0000
Subject: * eval.c (rb_eval), parse.y (arg): reduce fixnum range literal at  
 parser.  fixed: [ruby-dev:26113]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@8425 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 parse.y | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

(limited to 'parse.y')

diff --git a/parse.y b/parse.y
index 2b41cd558a..fe2cd06856 100644
--- a/parse.y
+++ b/parse.y
@@ -1057,13 +1057,27 @@ arg		: lhs '=' arg
 		    {
 			value_expr($1);
 			value_expr($3);
-			$$ = NEW_DOT2($1, $3);
+			if (nd_type($1) == NODE_LIT && FIXNUM_P($1->nd_lit) &&
+			    nd_type($3) == NODE_LIT && FIXNUM_P($3->nd_lit)) {
+			    $1->nd_lit = rb_range_new($1->nd_lit, $3->nd_lit, Qfalse);
+			    $$ = $1;
+			}
+			else {
+			    $$ = NEW_DOT2($1, $3);
+			}
 		    }
 		| arg tDOT3 arg
 		    {
 			value_expr($1);
 			value_expr($3);
-			$$ = NEW_DOT3($1, $3);
+			if (nd_type($1) == NODE_LIT && FIXNUM_P($1->nd_lit) &&
+			    nd_type($3) == NODE_LIT && FIXNUM_P($3->nd_lit)) {
+			    $1->nd_lit = rb_range_new($1->nd_lit, $3->nd_lit, Qtrue);
+			    $$ = $1;
+			}
+			else {
+			    $$ = NEW_DOT3($1, $3);
+			}
 		    }
 		| arg '+' arg
 		    {
-- 
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