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Bug #8279

closed

Single-line rescue parsing

Added by dunric (David Unric) almost 11 years ago. Updated over 4 years ago.

Status:
Closed
Target version:
-
ruby -v:
2.0.0p0
Backport:
[ruby-core:54338]

Description

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.


Files

massign-rescue-modifier-8279.patch (2.08 KB) massign-rescue-modifier-8279.patch jeremyevans0 (Jeremy Evans), 08/09/2019 03:10 AM

Related issues 1 (0 open1 closed)

Is duplicate of Ruby master - Feature #8239: Inline rescue bugClosedmatz (Yukihiro Matsumoto)Actions
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