class RuboCop::Cop::Lint::RandOne

This cop checks for `rand(1)` calls. Such calls always return `0`.

@example

# bad

rand 1
Kernel.rand(-1)
rand 1.0
rand(-1.0)

@example

# good

0 # just use 0 instead

Constants

MSG

Public Instance Methods

on_send(node) click to toggle source
# File lib/rubocop/cop/lint/rand_one.rb, line 30
def on_send(node)
  return unless rand_one?(node)

  add_offense(node)
end

Private Instance Methods

message(node) click to toggle source
# File lib/rubocop/cop/lint/rand_one.rb, line 38
def message(node)
  format(MSG, node.source)
end