[Bro-Dev] #1013: redef'ing tables overwrites unrelated values

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#1013: redef'ing tables overwrites unrelated values
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  Reporter:  dmandelb  |      Owner:
      Type:  Problem   |     Status:  new
  Priority:  Medium    |  Milestone:  Bro2.2
 Component:  Bro       |    Version:  git/master
Resolution:            |   Keywords:
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Comment (by jsiwek):

 This is typically how tables can be redef'd:

 {{{
 const foo: table[string] of double = {} &redef;

 # full (re)initialization
 redef foo = { ["nope"] = 37.0 };

 # full (re)initialization, discards "nope" index
 redef foo = { ["abc"] = 42.0 };

 # add elements
 redef foo += { ["def"] = -42.0, ["ghi"] = 7.0 };

 # remove elements from LHS based on indices shared with RHS
 redef foo -= { ["ghi"] = 0.0 };

 # RHS is just a table value, the syntax of how it's represented shouldn't
 matter
 redef foo += table(["cool"] = 5.0);

 print(foo);
 }}}

 Haven't yet looked in to whether what you tried (redef'ing an index
 expression) can actually be used in a meaningful way or if it should
 result in some error message.

-- 
Ticket URL: <http://tracker.bro.org/bro/ticket/1013#comment:1>
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