Module: Loba::Internal

Defined in:
lib/loba.rb

Defined Under Namespace

Classes: Deprecated, Platform, TimeKeeper

Class Method Summary collapse

Class Method Details

.calling_class_name(depth = 0) ⇒ Object

Prepare display of class name from where Loba was invoked



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# File 'lib/loba.rb', line 147

def calling_class_name(depth = 0)
  m = binding.of_caller(depth+1).eval('self.class.name')
  if m.nil? || m.empty?
    '<anonymous class>'
  elsif m == 'Class'
    binding.of_caller(depth+1).eval('self.name')
  else
    m
  end
end

.calling_line_number(depth = 0) ⇒ Object

Prepare display of line number from where Loba was invoked [UNUSED]



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# File 'lib/loba.rb', line 177

def calling_line_number(depth = 0)
  binding.of_caller(depth+1).eval('__LINE__')
end

.calling_method_name(depth = 0) ⇒ Object

Prepare display of method name from where Loba was invoked



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# File 'lib/loba.rb', line 160

def calling_method_name(depth = 0)
  m = binding.of_caller(depth+1).eval('self.send(:__method__)')
  (m.nil? || m.empty?) ? '<anonymous method>' : m
end

.calling_method_type(depth = 0) ⇒ Object

Prepare display of whether the method from where Loba was invoked is for a class or an instance



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# File 'lib/loba.rb', line 167

def calling_method_type(depth = 0)
  if binding.of_caller(depth+1).eval('self.class.name') == 'Class'
    :class
  else
    :instance
  end
end

.calling_source_line(depth = 0) ⇒ Object

Identify source code line from where Loba was invoked



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# File 'lib/loba.rb', line 190

def calling_source_line(depth = 0)
  caller[depth]
end

.calling_tag(depth = 0) ⇒ Object

Assemble display that shows the method invoking Loba



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# File 'lib/loba.rb', line 183

def calling_tag(depth = 0)
  delim = {class: '.', instance: '#'}
  "[#{calling_class_name(depth+1)}#{delim[calling_method_type(depth+1)]}#{calling_method_name(depth+1)}]"
end

.filter_options(options, allowed_keys = []) ⇒ Object

Filters options argument for deprecated or unexpected use



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# File 'lib/loba.rb', line 197

def filter_options(options, allowed_keys = [])
  result = {}
  allowed_keys.each { |key| result[key] = false }

  case options
  when Hash
    allowed_keys.each do |key|
      result[key] = !!options[key] unless options[key].nil?
    end
  when TrueClass
    if allowed_keys.include? :production
      Internal::Deprecated._0_3_0(true)
      result[:production] = true
    end
  when FalseClass
    Internal::Deprecated._0_3_0(false)
  else   # to be safe, treat as false
    Internal::Deprecated._0_3_0(false)
  end

  result
end