[#56965] [ruby-trunk - Bug #8852][Open] Synology build of ruby-2.0.0-p247 is failing — "barbecuesteve (Steve Sparks)" <sparks@...>

12 messages 2013/09/02

[#57051] [ruby-trunk - Bug #8872][Open] Case statements do not honor a refinement of the '===' method — "jconley88 (Jon Conley)" <schnozberries@...>

21 messages 2013/09/07

[#57058] [ruby-trunk - Bug #8875][Open] Select is not usable with SSLSocket — "headius (Charles Nutter)" <headius@...>

11 messages 2013/09/07

[#57074] [ruby-trunk - Bug #8879][Open] String#to_r fails after moving ruby to other OSX system — "mpapis (Michal Papis)" <mpapis@...>

12 messages 2013/09/08

[#57092] [ruby-trunk - Bug #8883][Open] Rational canonicalization unexpectedly converts to Fixnum — "melquiades (Paul Cantrell)" <cantrell@...>

16 messages 2013/09/09

[#57109] [ruby-trunk - Bug #8886][Open] TracePoint API inconsistence when raise used — deivid (David Rodríguez) <deivid.rodriguez@...>

14 messages 2013/09/10

[#57111] [ruby-trunk - Feature #8887][Open] min(n), max(n), min_by(n), max_by(n) — "akr (Akira Tanaka)" <akr@...>

13 messages 2013/09/10

[#57131] [ruby-trunk - Feature #8895][Open] Destructuring Assignment for Hash — "chendo (Jack Chen)" <ruby-lang@...>

19 messages 2013/09/11

[#57186] [ruby-trunk - Feature #8909][Open] Expand "f" frozen suffix to literal arrays and hashes — "headius (Charles Nutter)" <headius@...>

37 messages 2013/09/14

[#57262] [ruby-trunk - Feature #8921][Open] Allow select, reject, etc to accept a regex — "kyledecot (Kyle Decot)" <kyle.decot@...>

13 messages 2013/09/18

[#57273] [ruby-trunk - Feature #8923][Open] Frozen nil/true/false — "ko1 (Koichi Sasada)" <redmine@...>

13 messages 2013/09/19

[#57353] [ruby-trunk - Feature #8948][Open] Frozen regex — "sawa (Tsuyoshi Sawada)" <sawadatsuyoshi@...>

19 messages 2013/09/24

[#57385] [ruby-trunk - Bug #8953][Open] `str =~ /pattern/` does not call =~ method if (1) str is a String, (2) /pattern/ is a Regexp literal — "gfx (Goro Fuji)" <gfuji@...>

12 messages 2013/09/26

[#57396] [ruby-trunk - Feature #8956][Open] Allow hash members delimited by \n inside of {} — "adamdunson (Adam Dunson)" <adam@...>

20 messages 2013/09/26

[ruby-core:57337] [ruby-trunk - Feature #8691][Closed] Add warning for variable that is re-assigned but not re-used

From: "zzak (Zachary Scott)" <e@...>
Date: 2013-09-23 20:06:52 UTC
List: ruby-core #57337
Issue #8691 has been updated by zzak (Zachary Scott).

Status changed from Feedback to Closed

closing, see ruby-core:57091
----------------------------------------
Feature #8691: Add warning for variable that is re-assigned but not re-used
https://bugs.ruby-lang.org/issues/8691#change-41944

Author: agrimm (Andrew Grimm)
Status: Closed
Priority: Normal
Assignee: 
Category: 
Target version: 


The following code

def reassigned_unused
  a = 42
  b = a.to_s
  a = 56
  b
end

Does not currently generate an "assigned but unused variable" warning about the second assignment to "a".

Is it feasible to create a warning for such a scenario?


-- 
http://bugs.ruby-lang.org/

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