Looks good.  One minor formatting problem: Some of the changed parts of 
parser.y are now using tab characters instead of spaces.

In the BlockSignatureAttributes enumeration (in BlockDispatcher.cs), there's a 
comment that "bits 31..3 store arity".  Are you numbering bits from 1?  I'm 
used to numbering them from zero :).

-----Original Message-----
From: Tomas Matousek
Sent: Friday, October 03, 2008 8:57 PM
To: IronRuby External Code Reviewers
Cc: [email protected]
Subject: Code Review: arity

tfpt review "/shelveset:arity;REDMOND\tomat"
Comment  :
  Fixes bugs in block parameters:
  1)    Anonymous unsplat parameters were not handled correctly (the parser 
ignored them):
  def y
    a = [1,2,3,4,5]
    yield a,[6]
  end

  y { |(x,y,*),*| p x,y }
  2)    Arity wasn't calculated correctly. Arity depends upon AST structure 
that is not preserved in runtime. Therefore we need to calculate block arity at 
compile time and save it to BlockDispatcher.
  Some peculiar cases:

  Proc.new{|(a,b,c,*)|}.arity.should == -4
  Proc.new{|(*)|}.arity.should == -1
  Proc.new{}.arity.should == -1
  Proc.new{||}.arity.should == 0
  Proc.new{x,}.arity.should == 1
  Proc.new{(x,)}.arity.should == 1

Tomas
_______________________________________________
Ironruby-core mailing list
[email protected]
http://rubyforge.org/mailman/listinfo/ironruby-core

Reply via email to