Including a module can cause Ruby's global constant cache to be busted
if the included module contain constants. So that's something you don't
want to happen at "runtime", otherwise it will severely degrade performance
and if you are using YJIT or MJIT most of the compiled code will be invalidated.
To limit the impact of this, we can pre-include the global filters,
as they're generally registered during boot, that limits the problem
to non-global filters.
Example:
```
// the_count.liquid
{{ number }}! Ah ah ah.
// my_template.liquid
{% for number in range (1..3) %}
{% render "the_count", number: number %}
{% endfor %}
Output:
1! Ah ah ah.
2! Ah ah ah.
3! Ah ah ah.
```
The `render` tag is a more strict version of the `include` tag. It is
designed to isolate itself from the parent rendering context both by
creating a new scope (which does not inherit the parent scope) and by
only inheriting "static" registers.
Static registers are those that do not hold mutable state which could
affect rendering. This again helps `render`ed templates remain entirely
separate from their calling context.
Unlike `include`, `render` does not permit specifying the target
template using a variable, only a string literal. For example, this
means that `{% render my_dynamic_template %}` is invalid syntax. This
will make it possible to statically analyze the dependencies between
templates without making Turing angry.
Note that the `static_environment` of a rendered template is inherited, unlike
the scope and regular environment. This environment is immutable from within the
template.
An alternate syntax, which mimics the `{% include ... for %}` tag is
currently in design discussion.
Ruby 1.9+ uses Minitest as the backend for Test::Unit. As of Minitest 5,
the shim has broken some compatibility with Test::Unit::TestCase in some
scenarios.
Adjusts the test suite to support Minitest 5's syntax.
Minitest versions 4 and below do not support the newer Minitest::Test
class that arrived in version 5. For that case, use the
MiniTest::Unit::TestCase class as a fallback
Conflicts:
test/integration/tags/for_tag_test.rb
test/test_helper.rb
Dylan Thacker-Smith