puppetlabs/puppet · error · ArgumentError

A String is not comparable to a non String

Error message

A String is not comparable to a non String

What it means

Error "A String is not comparable to a non String" thrown in puppetlabs/puppet.

Source

Thrown at lib/puppet/pops/evaluator/compare_operator.rb:53

    @@compare_visitor.visit_this_1(self, a, b)
  end

  # Performs a match of a and b, and returns true if b matches a
  def match(a, b, scope = nil)
    @@match_visitor.visit_this_2(self, b, a, scope)
  end

  # Answers is b included in a
  def include?(a, b, scope)
    @@include_visitor.visit_this_2(self, a, b, scope)
  end

  protected

  def cmp_String(a, b)
    return a.casecmp(b) if b.is_a?(String)

    raise ArgumentError, _("A String is not comparable to a non String")
  end

  # Equality is case independent.
  def equals_String(a, b)
    return false unless b.is_a?(String)

    a.casecmp(b) == 0
  end

  def cmp_Numeric(a, b)
    case b
    when Numeric
      a <=> b
    when Time::Timespan, Time::Timestamp
      -(b <=> a) # compare other way and invert result
    else
      raise ArgumentError, _("A Numeric is not comparable to non Numeric")
    end

View on GitHub (pinned to e227c27540)

When it happens

Trigger: Thrown at lib/puppet/pops/evaluator/compare_operator.rb:53 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of puppetlabs/puppet@e227c27540 (2026-08-21). Data as JSON: /api/errors/350fc83bb3a07521. Report an issue: GitHub.