Class: Gelauto::MethodIndex

Inherits:
Object
  • Object
show all
Defined in:
lib/gelauto/method_index.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MethodIndex

Returns a new instance of MethodIndex.



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# File 'lib/gelauto/method_index.rb', line 5

def initialize
  @index = Hash.new { |h, k| h[k] = {} }
  @sig_index = Hash.new { |h, k| h[k] = {} }
end

Instance Attribute Details

#index ⇒ Object (readonly)

Returns the value of attribute index.



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# File 'lib/gelauto/method_index.rb', line 3

def index
  @index
end

#sig_index ⇒ Object (readonly)

Returns the value of attribute sig_index.



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# File 'lib/gelauto/method_index.rb', line 3

def sig_index
  @sig_index
end

Instance Method Details

#annotate(path, code) ⇒ Object 



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# File 'lib/gelauto/method_index.rb', line 77

def annotate(path, code)
  lines = code.split(/\r?\n/)
  mds = index[path]
  sigs = sig_index[path]

  [].tap do |annotated|
    lines.each_with_index do |line, idx|
      lineno = idx + 1
      md = mds[lineno]

      if md.is_a?(MethodDef) && !sigs[idx]
        indent = line[0...line.index(/[^\s]/)]
        annotated << "#{indent}#{md.to_sig}"
      end

      annotated << line
    end
  end.join("\n")
end

#each ⇒ Object 



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# File 'lib/gelauto/method_index.rb', line 59

def each
  return to_enum(__method__) unless block_given?

  index.each_pair do |path, line_index|
    line_index.each_pair do |lineno, md|
      yield(path, lineno, md) if md.is_a?(MethodDef)
    end
  end
end

#each_method_in(path) ⇒ Object 



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# File 'lib/gelauto/method_index.rb', line 69

def each_method_in(path)
  return to_enum(__method__, path) unless block_given?

  index[path].each_pair do |lineno, md|
    yield lineno, md if md.is_a?(MethodDef)
  end
end

#find(path, lineno) ⇒ Object 



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# File 'lib/gelauto/method_index.rb', line 50

def find(path, lineno)
  if md = index[path][lineno]
    return md if md.is_a?(MethodDef)

    # md is actually an index pointing to another line
    index[path][md]
  end
end

#index_methods_in(path, ast, nesting = []) ⇒ Object 



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# File 'lib/gelauto/method_index.rb', line 10

def index_methods_in(path, ast, nesting = [])
  return unless ast

  case ast.type
    when :def, :defs
      name = nil
      args = nil

      if ast.type == :def
        name = ast.children[0]
        args = ast.children[1].children.each_with_object([]) do |c, memo|
          # ignore anonymous args like **, etc
          memo << c.children.first if c.children.first
        end
      else
        name = ast.children[1]
        args = ast.children[2].children.each_with_object([]) do |c, memo|
          # ignore anonymous args like **, etc
          memo << c.children.first if c.children.first
        end
      end

      md = MethodDef.new(name, args, nesting)
      index[path][ast.location.name.line] = md

      # point to start of method
      index[path][ast.location.end.line] = ast.location.name.line

    when :class, :module
      const_name = ast.children.first.children.last
      return visit_children(path, ast, nesting + [Namespace.new(const_name, ast.type)])
    when :block
      if ast.children.first.children.last == :sig
        sig_index[path][ast.location.line] = true
      end
  end

  visit_children(path, ast, nesting)
end

#reset ⇒ Object 



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# File 'lib/gelauto/method_index.rb', line 97

def reset
  index.clear
end