Bug #1692: warning: useless use of a literal in void context

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: 1.9.2
• ruby -v: ruby 1.9.2dev (2009-06-24 trunk 23837) [i686-linux]

[znz (Kazuhiro NISHIYAMA)]

=begin
1.8 では
warning: useless use of a literal in void context
が出るときに 1.9 だと何も出ません。

% ruby18 -ve '1'
ruby 1.8.8dev (2009-06-23 revision 23825) [i686-linux]
-e:1: warning: useless use of a literal in void context
% ruby-trunk -ve '1'
ruby 1.9.2dev (2009-06-24 trunk 23837) [i686-linux]
%
=end

[matz (Yukihiro Matsumoto)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

=begin
Applied in changeset r23864.
=end

[matz (Yukihiro Matsumoto)]

• Status changed from Closed to Open

=begin
wrong ML ref
=end

[yugui (Yuki Sonoda)]

• Assignee set to matz (Yukihiro Matsumoto)
• Target version set to 1.9.2

=begin
意図されたことでしょうか? < まつもとさん
=end

[mame (Yusuke Endoh)]

• Assignee changed from matz (Yukihiro Matsumoto) to nobu (Nobuyoshi Nakada)

=begin
遠藤です。

r23474 の影響のようで、意図されたことではないと思います。

パッチにはあまり自信ありませんが、なかださんどうでしょうか。

diff --git a/parse.y b/parse.y
index c88a727..cb49fa1 100644
--- a/parse.y
+++ b/parse.y
@@ -785,8 +785,7 @@ static void token_info_pop(struct parser_params*, const char token);
program : {
lex_state = EXPR_BEG;
/%%%*/

•  	$<num>$ = compile_for_eval || rb_parse_in_main();
  

•  	local_push($<num>$);
  

•  	local_push(compile_for_eval || rb_parse_in_main());
       /*%
   	local_push(0);
       %*/
  

@@ -794,7 +793,7 @@ program : {
top_compstmt
{
/%%%/

•  	if ($2 && !$<num>1) {
  

•  	if ($2 && !compile_for_eval) {
   	    /* last expression should not be void */
   	    if (nd_type($2) != NODE_BLOCK) void_expr($2);
   	    else {
  

--
Yusuke Endoh [e-mail]
=end

[mame (Yusuke Endoh)]

• Status changed from Open to Closed

=begin
This issue was solved with changeset r27504.
Kazuhiro, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end