Issue #8279 has been updated by nobu (Nobuyoshi Nakada).

Priority changed from High to Normal


----------------------------------------
Bug #8279: Single-line rescue parsing
https://bugs.ruby-lang.org/issues/8279#change-38624

Author: dunric (David Unric)
Status: Open
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: syntax
Target version: 
ruby -v: 2.0.0p0


Hi,

there seems to be a bug in parser for single-line rescue statement. It fails in case of multiple assignment statements, keeping operator precedence vs. simple assignment etc.

obj = expression rescue objval
# parsed as
obj = (expression rescue objval) 

obj1, obj2 = expression rescue [objval1, objval2]
# parsed as
(obj1, obj2 = expression) rescue [objval1, objval2]

obj += expression rescue objval
# parsed as
obj += (expression rescue objval)

obj = obj + expression rescue objval
# parsed as
obj = (obj + expression) rescue objval


There is already a thread about this issue on ruby-forum.com, even Matz himself is aware and did gave a nod to this problem http://www.ruby-forum.com/topic/152260#671711 , though nothing was done to fix it yet.

I've tried to report about this problem once (http://bugs.ruby-lang.org/issues/8239) but it was ignored for no known reason.



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