Module: Ruby2JS::Filter::Require

Includes:
SEXP
Defined in:
lib/ruby2js/filter/require.rb

Constant Summary collapse

@@valid_path = 
/\A[-\w.]+\Z/

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SEXP

#S, #s

Class Method Details

.valid_path=(valid_path) ⇒ Object 



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# File 'lib/ruby2js/filter/require.rb', line 10

def self.valid_path=(valid_path)
  @@valid_path = valid_path
end

Instance Method Details

#initialize(*args) ⇒ Object 



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# File 'lib/ruby2js/filter/require.rb', line 14

def initialize(*args)
  @require_expr = nil
  super
end

#on_casgn(node) ⇒ Object 



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# File 'lib/ruby2js/filter/require.rb', line 76

def on_casgn(node)
  require_expr, @require_expr = @require_expr, true
  super
ensure
  @require_expr = require_expr
end

#on_lvasgn(node) ⇒ Object 



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# File 'lib/ruby2js/filter/require.rb', line 69

def on_lvasgn(node)
  require_expr, @require_expr = @require_expr, true
  super
ensure
  @require_expr = require_expr
end

#on_send(node) ⇒ Object 



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# File 'lib/ruby2js/filter/require.rb', line 19

def on_send(node)
  if \
    not @require_expr and # only statements
    node.children.length == 3 and
    node.children[0] == nil and
    [:require, :require_relative].include? node.children[1] and
    node.children[2].type == :str and
    @options[:file]
  then

    begin
      file2 = @options[:file2]  

      basename = node.children[2].children.first
      dirname = File.dirname(File.expand_path(@options[:file]))

      if file2 and node.children[1] == :require_relative
        dirname = File.dirname(File.expand_path(file2))
      end

      filename = File.join(dirname, basename)

      if not File.file? filename and File.file? filename+".rb"
        filename += '.rb'
      elsif not File.file? filename and File.file? filename+".js.rb"
        filename += '.js.rb'
      end

      @options[:file2] = filename
      ast, comments = Ruby2JS.parse(File.read(filename), filename)
      @comments.merge! Parser::Source::Comment.associate(ast, comments)
      @comments[node] += @comments[ast]
      process ast
    ensure
      if file2
        @options[:file2] = file2
      else
        @options.delete(:file2)
      end
    end
  else
    begin
      require_expr, @require_expr = @require_expr, true
      super
    ensure
      @require_expr = require_expr
    end
  end
end