Class: Steep::ModuleName

Inherits:
Object
  • Object
show all
Defined in:
lib/steep/module_name.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name:, absolute:) ⇒ ModuleName

Returns a new instance of ModuleName.



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# File 'lib/steep/module_name.rb', line 5

def initialize(name:, absolute:)
  @name = name
  @absolute = absolute
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/steep/module_name.rb', line 3

def name
  @name
end

Class Method Details

.from_node(node) ⇒ Object 



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# File 'lib/steep/module_name.rb', line 15

def self.from_node(node)
  case node.type
  when :const
    relative_node = new(name: node.children.last.to_s, absolute: false)
    parent_node = node.children.first

    case parent_node&.type
    when :cbase
      relative_node.absolute!
    when nil
      relative_node
    else
      from_node(parent_node)&.yield_self do |parent|
        parent + relative_node
      end
    end
  when :casgn
    relative_node = new(name: node.children[1].to_s, absolute: false)
    parent_node = node.children.first

    case parent_node&.type
    when :cbase
      relative_node.absolute!
    when nil
      relative_node
    else
      from_node(parent_node)&.yield_self do |parent|
        parent + relative_node
      end
    end
  else
    nil
  end
end

.parse(name) ⇒ Object 



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# File 'lib/steep/module_name.rb', line 10

def self.parse(name)
  name = name.to_s
  new(name: name.gsub(/\A::/, ""), absolute: name.start_with?("::"))
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/steep/module_name.rb', line 80

def +(other)
  case other
  when self.class
    if other.absolute?
      other
    else
      self.class.new(name: "#{name}::#{other.name}", absolute: absolute?)
    end
  else
    self + self.class.parse(other)
  end
end

#==(other) ⇒ Object Also known as: eql? 



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# File 'lib/steep/module_name.rb', line 50

def ==(other)
  other.is_a?(self.class) && other.name == name && other.absolute? == absolute?
end

#absolute! ⇒ Object 



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# File 'lib/steep/module_name.rb', line 60

def absolute!
  self.class.new(name: name, absolute: true)
end

#absolute? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/steep/module_name.rb', line 64

def absolute?
  !!@absolute
end

#components ⇒ Object 



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# File 'lib/steep/module_name.rb', line 93

def components
  name.split(/::/).map.with_index {|s, index|
    if index == 0 && absolute?
      self.class.parse(s).absolute!
    else
      self.class.parse(s)
    end
  }
end

#hash ⇒ Object 



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# File 'lib/steep/module_name.rb', line 54

def hash
  self.class.hash ^ name.hash ^ @absolute.hash
end

#parent ⇒ Object 



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# File 'lib/steep/module_name.rb', line 103

def parent
  components = components()
  components.pop

  unless components.empty?
    self.class.parse(components.join("::"))
  end
end

#relative? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/steep/module_name.rb', line 68

def relative?
  !absolute?
end

#simple? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/steep/module_name.rb', line 112

def simple?
  components.size == 1
end

#to_s ⇒ Object 



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# File 'lib/steep/module_name.rb', line 72

def to_s
  if absolute?
    "::#{name}"
  else
    name
  end
end