Break, continue and loops' labels

[ilyapuchka]

This PR adds break and continue tags for loops. They can be labeled, like in Swift, or not.

{% for item in items %}
  {{ item }}{% if condition %}{% break %}{% endif %}
{% endfor %}

Labeled loops:

{% outer: for item in items %}
  {% for key in keys %}
    {{ item.key }}{% if condition %}{% break outer %}{% endif %}
  {% endfor %}
{% endfor %}

Also with labels it's now possible to access outer loop context from inner loop:

{% outer: for item in items %}
  {% for key in keys %}
   {{ forloop.counter }}-{{ forloop.outer.counter }}
  {% endfor %}
{% endfor %}

[djbe]

While template writers can do this now with the set tag, I think this would be easier (and shorter) to use.

I'm not 100% sold on the location/syntax of the label, but I don't have any better ideas 🤷‍♂️ What are other people's thoughts?

[djbe]

Before I forget: This PR should document the changes in the docs.

[ilyapuchka]

Is it something we still want to have or it can be closed?

[SwiftGen-Eve]

	1 Message
📖	Big PR

Hey 👋 I'm Eve, the friendly bot watching over Stencil 🤖

Thanks a lot for your contribution!

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Seems like everything is in order 👍 You did a good job here! 🤝

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[djbe]

Rebased on master, added support for multi-level forloop access, and fixed a bug in the tokenizer because of #178. The fix for that last one is "okay-ish" 🤷