Class: Decode::Language::Ruby::Reference

Inherits:
Object
  • Object
show all
Defined in:
lib/decode/language/ruby/reference.rb

Overview

An Ruby-specific reference which can be resolved to zero or more symbols.

Constant Summary collapse

KIND = 
{
  ':' => :def,
  '.' => :defs,
}.freeze
METHOD = 
/\A(?<scope>.*?)?(?<kind>:|\.)(?<name>.+?)\z/

Instance Method Summary collapse

Constructor Details

#initialize(value) ⇒ Reference

Initialize the reference.

Parameters:

  • value (String) —

    The string value of the reference.



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# File 'lib/decode/language/ruby/reference.rb', line 33

def initialize(value)
  @value = value
  
  @path = nil
  @kind = nil
end

Instance Method Details

#absolute? ⇒ Boolean

Whether the reference starts at the base of the lexical tree.

Returns:

  • (Boolean) 


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# File 'lib/decode/language/ruby/reference.rb', line 41

def absolute?
  @value.start_with?('::')
end

#kind ⇒ Object

The kind of symbol to match.



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# File 'lib/decode/language/ruby/reference.rb', line 75

def kind
  self.path
  
  return @kind
end

#path ⇒ Array(String)

The lexical path of the reference.

Returns:

  • (Array(String)) 


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# File 'lib/decode/language/ruby/reference.rb', line 49

def path
  if @path.nil?
    @path = @value.split(/::/)
    
    if last = @path.pop
      if match = last.match(METHOD)
        @kind = KIND[match[:kind]]
        
        if scope = match[:scope]
          @path << scope
        end
        
        @path << match[:name]
      else
        @path << last
      end
    end
    
    @path = @path.map(&:to_sym)
    @path.freeze
  end
  
  return @path
end