Module: Ruby2JS::Filter::CJS

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

Instance Method Summary collapse

Methods included from SEXP

#S, #s

Instance Method Details

#on_block(node) ⇒ Object 



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# File 'lib/ruby2js/filter/cjs.rb', line 58

def on_block(node)
  child = node.children[0]
  unless child.type == :send and child.children[0..1] == [nil, :export]
    return super 
  end

  send = child.children[2]
  unless send.type == :send and send.children[0..1] == [nil, :default]
    return super 
  end

  if send.children[2] == s(:send, nil, :proc)
    node.updated(:send, [
      s(:attr, nil, :module),
      :exports=,
      s(:block, s(:send, nil, :proc),
      *process_all(node.children[1..-1]))
    ])
  elsif send.children[2] == s(:send, nil, :async, s(:send, nil, :proc))
    node.updated(:send, [
      s(:attr, nil, :module),
      :exports=,
      s(:send, nil, :async,
        s(:block, s(:send, nil, :proc),
        *process_all(node.children[1..-1])))
    ])
  else
    super
  end
end

#on_send(node) ⇒ Object 



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# File 'lib/ruby2js/filter/cjs.rb', line 8

def on_send(node)
  return super unless node.children[1] == :export

  if node.children[2].type == :def
    fn = node.children[2]
    node.updated(nil, [
      s(:attr, nil, :exports),
      fn.children[0].to_s + '=',
      s(:block, s(:send, nil, :proc), *process_all(fn.children[1..-1]))
    ])

  elsif node.children[2].type == :lvasgn
    assign = node.children[2]
    node.updated(nil, [
      s(:attr, nil, :exports),
      assign.children[0].to_s + '=',
      *assign.children[1..-1]
    ])

  elsif \
    node.children[2].type == :send and
    node.children[2].children[0..1] == [nil, :async] and
    node.children[2].children[2].type == :def
  then
    fn = node.children[2].children[2]
    node.updated(nil, [
      s(:attr, nil, :exports),
      fn.children[0].to_s + '=',
      s(:send, nil, :async,
        s(:block, s(:send, nil, :proc),
        *process_all(fn.children[1..-1])))
    ])

  elsif \
    node.children[2].type == :send and
    node.children[2].children[0..1] == [nil, :default]
  then
    node = node.children[2]

    node.updated(nil, [
      s(:attr, nil, :module),
      :exports=,
      node.children[2]
    ])

  else
    super
  end
end