Module: Ruby2JS::Filter::Node

Extended by:
SEXP
Includes:
SEXP
Defined in:
lib/ruby2js/filter/node.rb

Constant Summary collapse

IMPORT_CHILD_PROCESS = 
s(:import, ['child_process'],
s(:attr, nil, :child_process))
IMPORT_FS = 
s(:import, ['fs'], s(:attr, nil, :fs))
IMPORT_OS = 
s(:import, ['os'], s(:attr, nil, :os))
IMPORT_PATH = 
s(:import, ['path'], s(:attr, nil, :path))
SETUP_ARGV = 
s(:lvasgn, :ARGV, s(:send, s(:attr, 
s(:attr, nil, :process), :argv), :slice, s(:int, 2)))

Instance Method Summary collapse

Methods included from SEXP

S, s

Instance Method Details

#on___FILE__(node) ⇒ Object 



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# File 'lib/ruby2js/filter/node.rb', line 370

def on___FILE__(node)
  s(:attr, nil, :__filename)
end

#on_block(node) ⇒ Object 



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# File 'lib/ruby2js/filter/node.rb', line 291

def on_block(node)
  call = node.children.first
  target, method, *args = call.children

  if \
    method == :chdir and args.length == 1 and
    target.children.last == :Dir and
    target.type == :const and target.children.first == nil
  then
    s(:begin,
      s(:gvasgn, :$oldwd, s(:send, s(:attr, nil, :process), :cwd)),
      s(:kwbegin, s(:ensure, 
        s(:begin, process(call), process(node.children.last)),
        s(:send, s(:attr, nil, :process), :chdir, s(:gvar, :$oldwd)))))
  else
    super
  end
end

#on_const(node) ⇒ Object 



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# File 'lib/ruby2js/filter/node.rb', line 310

def on_const(node)
  if node.children == [nil, :ARGV]
    prepend_list << SETUP_ARGV
    super
  elsif node.children == [nil, :ENV]
    S(:attr, s(:attr, nil, :process), :env)
  elsif node.children == [nil, :STDIN]
    S(:attr, s(:attr, nil, :process), :stdin)
  elsif node.children == [nil, :STDOUT]
    S(:attr, s(:attr, nil, :process), :stdout)
  elsif node.children == [nil, :STDERR]
    S(:attr, s(:attr, nil, :process), :stderr)
  elsif node.children.first == s(:const, nil, :File)
    if node.children.last == :SEPARATOR
      prepend_list << IMPORT_PATH
      S(:attr, s(:attr, nil, :path), :sep)
    elsif node.children.last == :PATH_SEPARATOR
      prepend_list << IMPORT_PATH
      S(:attr, s(:attr, nil, :path), :delimiter)
    else
      super
    end
  else
    super
  end
end

#on_gvar(node) ⇒ Object 



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# File 'lib/ruby2js/filter/node.rb', line 337

def on_gvar(node)
  if node.children == [:$stdin]
    S(:attr, s(:attr, nil, :process), :stdin)
  elsif node.children == [:$stdout]
    S(:attr, s(:attr, nil, :process), :stdout)
  elsif node.children == [:$stderr]
    S(:attr, s(:attr, nil, :process), :stderr)
  else
    super
  end
end

#on_send(node) ⇒ Object 



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# File 'lib/ruby2js/filter/node.rb', line 24

def on_send(node)
  target, method, *args = node.children

  if target == nil
    if method == :__dir__ and args.length == 0
      S(:attr, nil, :__dirname)

    elsif method == :exit and args.length <= 1
      s(:send, s(:attr, nil, :process), :exit, *process_all(args));

    elsif method == :system
      prepend_list << IMPORT_CHILD_PROCESS

      if args.length == 1
        S(:send, s(:attr, nil, :child_process), :execSync,
        process(args.first),
        s(:hash, s(:pair, s(:sym, :stdio), s(:str, 'inherit'))))
      else
        S(:send, s(:attr, nil, :child_process), :execFileSync,
        process(args.first), s(:array, *process_all(args[1..-1])),
        s(:hash, s(:pair, s(:sym, :stdio), s(:str, 'inherit'))))
      end

    elsif \
      method == :require and args.length == 1 and 
      args.first.type == :str and 
      %w(fileutils tmpdir).include? args.first.children.first
    then
      s(:begin)

    else
      super
    end

  elsif \
    [:File, :IO].include? target.children.last and
    target.type == :const and target.children.first == nil
  then
    if method == :read and args.length == 1
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :readFileSync, *process_all(args),
        s(:str, 'utf8'))

    elsif method == :write and args.length == 2
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :writeFileSync, *process_all(args))

    elsif target.children.last == :IO
      super

    elsif [:exist?, :exists?].include? method and args.length == 1
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :existsSync, process(args.first))

    elsif method == :readlink and args.length == 1
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :readlinkSync, process(args.first))

    elsif method == :realpath and args.length == 1
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :realpathSync, process(args.first))

    elsif method == :rename and args.length == 2
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :renameSync, *process_all(args))

    elsif \
      [:chmod, :lchmod].include? method and 
      args.length > 1 and args.first.type == :int
    then
      prepend_list << IMPORT_FS

      S(:begin, *args[1..-1].map{|file|
        S(:send, s(:attr, nil, :fs), method.to_s + 'Sync', process(file),
          s(:octal, *args.first.children))
      })

    elsif \
      [:chown, :lchown].include? method and args.length > 2 and 
      args[0].type == :int and args[1].type == :int
    then
      prepend_list << IMPORT_FS

      S(:begin, *args[2..-1].map{|file|
        s(:send, s(:attr, nil, :fs), method.to_s + 'Sync', process(file),
          *process_all(args[0..1]))
      })

    elsif [:ln, :link].include? method and args.length == 2
      prepend_list << IMPORT_FS
      s(:send, s(:attr, nil, :fs), :linkSync, *process_all(args))
      
    elsif method == :symlink and args.length == 2
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :symlinkSync, *process_all(args))
      
    elsif method == :truncate and args.length == 2
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :truncateSync, *process_all(args))
      
    elsif [:stat, :lstat].include? method and args.length == 1
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), method.to_s + 'Sync',
        process(args.first))

    elsif method == :unlink and args.length == 1
      prepend_list << IMPORT_FS
      S(:begin, *args.map{|file|
        S(:send, s(:attr, nil, :fs), :unlinkSync, process(file))
      })

    elsif target.children.last == :File
      if method == :absolute_path
        prepend_list << IMPORT_PATH
        S(:send, s(:attr, nil, :path), :resolve,
          *process_all(args.reverse))
      elsif method == :absolute_path?
        prepend_list << IMPORT_PATH
        S(:send, s(:attr, nil, :path), :isAbsolute, *process_all(args))
      elsif method == :basename
        prepend_list << IMPORT_PATH
        S(:send, s(:attr, nil, :path), :basename, *process_all(args))
      elsif method == :dirname
        prepend_list << IMPORT_PATH
        S(:send, s(:attr, nil, :path), :dirname, *process_all(args))
      elsif method == :extname
        prepend_list << IMPORT_PATH
        S(:send, s(:attr, nil, :path), :extname, *process_all(args))
      elsif method == :join
        prepend_list << IMPORT_PATH
        S(:send, s(:attr, nil, :path), :join, *process_all(args))
      else
        super
      end
    else
      super
    end

  elsif \
    target.children.last == :FileUtils and
    target.type == :const and target.children.first == nil
  then

    list = proc do |arg|
      if arg.type == :array
        arg.children
      else
        [arg]
      end
    end
      
    if [:cp, :copy].include? method and args.length == 2
      prepend_list << IMPORT_FS
      s(:send, s(:attr, nil, :fs), :copyFileSync, *process_all(args))
      
    elsif [:mv, :move].include? method and args.length == 2
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :renameSync, *process_all(args))

    elsif method == :mkdir and args.length == 1
      prepend_list << IMPORT_FS
      S(:begin, *list[args.last].map {|file|
        s(:send, s(:attr, nil, :fs), :mkdirSync, process(file))
      })
      
    elsif method == :cd and args.length == 1
      S(:send, s(:attr, nil, :process), :chdir, *process_all(args))

    elsif method == :pwd and args.length == 0
      S(:send!, s(:attr, nil, :process), :cwd)

    elsif method == :rmdir and args.length == 1
      prepend_list << IMPORT_FS
      S(:begin, *list[args.last].map {|file|
        s(:send, s(:attr, nil, :fs), :rmdirSync, process(file))
      })

    elsif method == :ln and args.length == 2
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :linkSync, *process_all(args))
      
    elsif method == :ln_s and args.length == 2
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :symlinkSync, *process_all(args))
      
    elsif method == :rm and args.length == 1
      prepend_list << IMPORT_FS
      S(:begin, *list[args.last].map {|file|
        s(:send, s(:attr, nil, :fs), :unlinkSync, process(file))
      })

    elsif \
      method == :chmod and args.length == 2 and args.first.type == :int
    then
      prepend_list << IMPORT_FS

      S(:begin, *list[args.last].map {|file|
        S(:send, s(:attr, nil, :fs), method.to_s + 'Sync', process(file),
          s(:octal, *args.first.children))
      })

    elsif \
      method == :chown and args.length == 3 and 
      args[0].type == :int and args[1].type == :int
    then
      prepend_list << IMPORT_FS

      S(:begin, *list[args.last].map {|file|
        s(:send, s(:attr, nil, :fs), method.to_s + 'Sync', process(file),
          *process_all(args[0..1]))})

    elsif method == :touch
      prepend_list << IMPORT_FS

      S(:begin, *list[args.first].map {|file|
        S(:send, s(:attr, nil, :fs), :closeSync,
          s(:send, s(:attr, nil, :fs), :openSync, file,
          s(:str, "w")))})

    else
      super
    end

  elsif \
    target.type == :const and target.children.first == nil and
    target.children.last == :Dir
  then
    if method == :chdir and args.length == 1
      S(:send, s(:attr, nil, :process), :chdir, *process_all(args))
    elsif method == :pwd and args.length == 0
      S(:send!, s(:attr, nil, :process), :cwd)
    elsif method == :entries
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :readdirSync, *process_all(args))
    elsif method == :mkdir and args.length == 1
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :mkdirSync, process(args.first))
    elsif method == :rmdir and args.length == 1
      prepend_list << IMPORT_FS
      S(:send, s(:attr, nil, :fs), :rmdirSync, process(args.first))
    elsif method == :mktmpdir and args.length <=1
      prepend_list << IMPORT_FS
      if args.length == 0
        prefix = s(:str, 'd')
      elsif args.first.type == :array
        prefix = args.first.children.first
      else
        prefix = args.first
      end

      S(:send, s(:attr, nil, :fs), :mkdtempSync, process(prefix))
    elsif method == :home and args.length == 0
      prepend_list << IMPORT_OS
      S(:send!, s(:attr, nil, :os), :homedir)
    elsif method == :tmpdir and args.length == 0
      prepend_list << IMPORT_OS
      S(:send!, s(:attr, nil, :os), :tmpdir)

    else
      super
    end

  else
    super
  end
end

#on_xstr(node) ⇒ Object 



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# File 'lib/ruby2js/filter/node.rb', line 349

def on_xstr(node)
  prepend_list << IMPORT_CHILD_PROCESS

  children = node.children.dup
  command = children.shift
  while children.length > 0
    child = children.shift
    if \
      child.type == :begin and child.children.length == 1 and
      child.children.first.type == :send and
      child.children.first.children.first == nil
    then
      child = child.children.first
    end
    command = s(:send, command, :+, child)
  end

  s(:send, s(:attr, nil, :child_process), :execSync, command,
    s(:hash, s(:pair, s(:sym, :encoding), s(:str, 'utf8'))))
end