I think this might be a better approach: #368

I like this approach, however it fails the build test. I tried to get to work on JsFiddle (http://jsfiddle.net/kQZpu/11/), but I get an error. There seems to be an issue with the return statement:

return Handlebars.SafeString(Handlebars.VM.invokePartial(Handlebars.partials[name], name, context, {}, Handlebars.partials));

That line throws the following error, which you can see in console:

Uncaught TypeError: Cannot call method 'call' of undefined

I tried investigating those Handlebars methods, but they're not documented and are difficult to trace.

One issue may be that you're using an older version of Handlebars (1.0.0beta6). Use this version, which is one of the last releases (post-1.0.0.rc1): https://dl.dropbox.com/u/22528488/handlebars.js

Thanks. I updated the version. No longer receive the error, however the context is lost an variables are returned undefined. http://jsfiddle.net/AndrewHenderson/kQZpu/13/. Look in console for logging.

Have you been able to get this to work in a reduced test case?

It looks like you must merge the template name into the hash. If you keep them separate, it goofs the options hash
http://jsfiddle.net/QV9em/3/

FWIW, I prefer to just have the partial called like so...

<script id="template" type="text/x-handlebars-template">
    <!-- with partial -->
    {{#each hobbies}}
        {{#include parent=.. }}
            {{> template-partial}}
        {{/include}}
    {{/each}}
</script>

See http://jsfiddle.net/QV9em/4/ for a working sample

I'm sorry for not giving this any attention after being opened so long ago. The hash passing approach is a good one but this should be part of the core partials syntax as it avoids the caveat above and make this a proper first level implementation. I will provide an update on #182 implementing something to that effect.