added some tests for the use tag

doc/templates.rst

@@ -1470,6 +1470,9 @@ http://github.com/fabpot/Twig-extensions.
 Horizontal Reuse
 ----------------
 
+.. versionadded:: 1.1
+    Horizontal reuse was added in Twig 1.1.
+
 .. note::
 
     Horizontal reuse is an advanced Twig feature that is hardly ever needed in
@@ -1509,7 +1512,8 @@ The ``use`` statement tells Twig to import the blocks defined in
     {% block sidebar %}{% endblock %}
 
 In this example, the ``use`` statement imports the ``sidebar`` block into the
-main template. The code is exactly equivalent to the following one:
+main template. The code is mostly equivalent to the following one (the
+imported blocks are not outputted automatically):
 
 .. code-block:: jinja
 

lib/Twig/Node/Module.php

@@ -163,7 +163,7 @@ class Twig_Node_Module extends Twig_Node
                 ->indent()
             ;
 
-            for ($i = count($this->getNode('traits')) - 1; $i >= 0; --$i) {
+            for ($i = 0, $count = count($this->getNode('traits')); $i < $count; $i++) {
                 $compiler
                     ->write(sprintf("\$_trait_%s_blocks,\n", $i))
                 ;

test/Twig/Tests/Fixtures/tags/use/aliases.test

@@ -0,0 +1,12 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "blocks.twig" with content as foo %}
+
+{{ block('foo') }}
+--TEMPLATE(blocks.twig)--
+{% block content 'foo' %}
+--DATA--
+return array()
+--EXPECT--
+foo

test/Twig/Tests/Fixtures/tags/use/basic.test

@@ -0,0 +1,12 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "blocks.twig" %}
+
+{{ block('content') }}
+--TEMPLATE(blocks.twig)--
+{% block content 'foo' %}
+--DATA--
+return array()
+--EXPECT--
+foo

test/Twig/Tests/Fixtures/tags/use/deep.test

@@ -0,0 +1,22 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "foo.twig" %}
+
+{{ block('content') }}
+{{ block('foo') }}
+{{ block('bar') }}
+--TEMPLATE(foo.twig)--
+{% use "bar.twig" %}
+
+{% block content 'foo' %}
+{% block foo 'foo' %}
+--TEMPLATE(bar.twig)--
+{% block content 'bar' %}
+{% block bar 'bar' %}
+--DATA--
+return array()
+--EXPECT--
+foo
+foo
+bar

test/Twig/Tests/Fixtures/tags/use/multiple.test

@@ -0,0 +1,21 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "foo.twig" %}
+{% use "bar.twig" %}
+
+{{ block('content') }}
+{{ block('foo') }}
+{{ block('bar') }}
+--TEMPLATE(foo.twig)--
+{% block content 'foo' %}
+{% block foo 'foo' %}
+--TEMPLATE(bar.twig)--
+{% block content 'bar' %}
+{% block bar 'bar' %}
+--DATA--
+return array()
+--EXPECT--
+bar
+foo
+bar

test/Twig/Tests/Fixtures/tags/use/multiple_aliases.test

@@ -0,0 +1,23 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "foo.twig" with content as foo_content %}
+{% use "bar.twig" %}
+
+{{ block('content') }}
+{{ block('foo') }}
+{{ block('bar') }}
+{{ block('foo_content') }}
+--TEMPLATE(foo.twig)--
+{% block content 'foo' %}
+{% block foo 'foo' %}
+--TEMPLATE(bar.twig)--
+{% block content 'bar' %}
+{% block bar 'bar' %}
+--DATA--
+return array()
+--EXPECT--
+bar
+foo
+bar
+foo