nobu	2014-11-01 15:59:43 +0900 (Sat, 01 Nov 2014)

  New Revision: 48221

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=48221

  Log:
    parse.y: separate error messages
    
    * parse.y (parse_atmark): separate error messages for sigil types,
      and make more descriptive

  Modified files:
    trunk/parse.y
Index: parse.y
===================================================================
--- parse.y	(revision 48220)
+++ parse.y	(revision 48221)
@@ -7576,7 +7576,12 @@ parse_atmark(struct parser_params *parse https://github.com/ruby/ruby/blob/trunk/parse.y#L7576
 	c = nextc();
     }
     if (c == -1 || ISSPACE(c)) {
-	compile_error(PARSER_ARG "unexpected @");
+	if (result == tIVAR) {
+	    compile_error(PARSER_ARG "`@' without identifiers is not allowed as an instance variable name");
+	}
+	else {
+	    compile_error(PARSER_ARG "`@@' without identifiers is not allowed as a class variable name");
+	}
 	return 0;
     }
     else if (ISDIGIT(c) || !parser_is_identchar()) {

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