module LiveAST::Common

Public Instance Methods

arg_to_str(arg) click to toggle source
# File lib/live_ast/common.rb, line 7
def arg_to_str(arg)
  arg.to_str
rescue NameError
  thing = arg.nil? ? nil : arg.class

  message = "no implicit conversion of #{thing.inspect} into String"
  raise TypeError, message
end
arg_to_str2(arg) click to toggle source
# File lib/live_ast/common.rb, line 16
def arg_to_str2(arg)
  arg.to_str
rescue NameError
  thing = arg.nil? ? nil : arg.class

  message = "wrong argument type #{thing.inspect} (expected String)"
  raise TypeError, message
end
check_arity(args, range) click to toggle source
# File lib/live_ast/common.rb, line 25
def check_arity(args, range)
  return if range.include? args.size

  range = 0 if range == (0..0)

  message = "wrong number of arguments (given #{args.size}, expected #{range})"
  raise ArgumentError, message
end
check_is_binding(obj) click to toggle source
# File lib/live_ast/common.rb, line 34
def check_is_binding(obj)
  return if obj.is_a? Binding

  message = "wrong argument type #{obj.class} (expected binding)"
  raise TypeError, message
end
location_for_eval(*args) click to toggle source
# File lib/live_ast/common.rb, line 41
def location_for_eval(*args)
  bind, *location = args

  if bind
    case location.size
    when 0
      bind.source_location
    when 1
      [location.first, 1]
    else
      location
    end
  else
    ["(eval)", 1]
  end
end