Fix syntax error in data attribute hash

Fixes #17.
This was a regression of 7d3056b89a.

lib/hamlit/attribute.rb

@@ -10,16 +10,16 @@ module Hamlit
   class Attribute
     include Concerns::AttributeBuilder
 
-    def self.build(quote, attributes, base = {})
+    def self.build(quote, base, attributes = {})
       builder = self.new(quote)
-      builder.build(attributes, base)
+      builder.build(base, attributes)
     end
 
     def initialize(quote)
       @quote = quote
     end
 
-    def build(attributes, base)
+    def build(base, attributes)
       result = ''
       merge_attributes(base, attributes).each do |key, value|
         if value == true

lib/hamlit/compilers/runtime_attribute.rb

@@ -30,7 +30,7 @@ module Hamlit
       def compile_runtime_attribute(str, base = nil)
         str = str.gsub(/(\A\{|\}\Z)/, '')
         quote = options[:attr_quote].inspect
-        code = "::Hamlit::Attribute.build(#{[quote, str, base].compact.join(', ')})"
+        code = "::Hamlit::Attribute.build(#{[quote, base, str].compact.join(', ')})"
         [:dynamic, code]
       end
 

spec/hamlit/engine/old_attributes_spec.rb

@@ -125,6 +125,15 @@ describe Hamlit::Engine do
     end
 
     describe 'nested attributes' do
+      it 'renders data attribute by hash' do
+        assert_render(<<-'HAML', <<-HTML)
+          - hash = { bar: 'baz' }
+          %span.foo{ data: hash }
+        HAML
+          <span class='foo' data-bar='baz'></span>
+        HTML
+      end
+
       it 'renders true attributes' do
         assert_render(<<-'HAML', <<-HTML)
           %span{ data: { disable: true } } bar