Class: Rux::DefaultVisitor

Inherits:
Visitor
  • Object
show all
Defined in:
lib/rux/default_visitor.rb

Instance Method Summary collapse

Methods inherited from Visitor

#visit, #visit_children

Instance Method Details

#visit_list(node) ⇒ Object 



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# File 'lib/rux/default_visitor.rb', line 5

def visit_list(node)
  node.children.map { |child| visit(child) }.join
end

#visit_ruby(node) ⇒ Object 



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# File 'lib/rux/default_visitor.rb', line 9

def visit_ruby(node)
  node.code
end

#visit_string(node) ⇒ Object 



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# File 'lib/rux/default_visitor.rb', line 13

def visit_string(node)
  node.str
end

#visit_tag(node) ⇒ Object 



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# File 'lib/rux/default_visitor.rb', line 17

def visit_tag(node)
  ''.tap do |result|
    block_arg = if (as = node.attrs['as'])
      visit(as)
    end

    at = node.attrs.each_with_object([]) do |(k, v), ret|
      next if k == 'as'
      ret << Utils.attr_to_hash_elem(k, visit(v))
    end

    if node.name.start_with?(/[A-Z]/)
      result << "render(#{node.name}.new"

      unless node.attrs.empty?
        result << "(#{at.join(', ')})"
      end
    else
      result << "Rux.tag('#{node.name}'"

      unless node.attrs.empty?
        result << ", { #{at.join(', ')} }"
      end
    end

    result << ')'

    if node.children.size > 1
      result << " { "
      result << "|#{block_arg}| " if block_arg
      result << "Rux.create_buffer.tap { |_rux_buf_| "

      node.children.each do |child|
        result << "_rux_buf_ << #{visit(child).strip};"
      end

      result << " }.to_s }"
    elsif node.children.size == 1
      result << ' { '
      result << "|#{block_arg}| " if block_arg
      result << visit(node.children.first).strip
      result << ' }'
    end
  end
end

#visit_text(node) ⇒ Object 



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# File 'lib/rux/default_visitor.rb', line 63

def visit_text(node)
  "\"#{CGI.escape_html(node.text)}\""
end