Bug #11378: Syntax error when passing Array boolean logic into method

• Status: Rejected
• Assignee: -
• Target version: -
• ruby -v: ruby 2.2.1p85 (2015-02-26 revision 49769) [i686-linux]
• Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN

[v0dro (Sameer Deshmukh)]

Passing Array boolean logic into a method is yielding a syntax error when the opening parenthesis is not separated from the method name by a space. It works fine if there is a space or if the boolean logic is enclosed in parenthesis.

Here's my sample code:

  def meth arr
    puts arr
  end

  [17] pry(main)> meth([true,false,true] and [true,false,false]) # Produces error when parenthesis and method name dont have a space in between
  SyntaxError: unexpected ')', expecting end-of-input
  [17] pry(main)> meth(([true,false,true] and [true,false,false])) #Works fine
  true
  false
  false
  => nil
  [19] pry(main)> meth ([true,false,true] and [true,false,false]) # Works fine. Notice the space between method call and parenthesis
  true
  false
  false

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Rejected

It's irrelevant to array, but a precedence problem.
An expression of and keyword can't be an argument without parentheses.