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VANILLA_HANDLEBARS.md

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During the template printing rewrite, we removed support for two kinds of vanilla Handlebars APIs:

  • Some Ember enhancements, such as SomeView -> {{view SomeView}} are now always performed.
  • Some Ember-specific APIs, such as p class=isEnabled:active:disabled had fallbacks to Handlebars-safe versions. Those fallbacks were removed.
  • Some Handlebars syntax that is unsupported in Ember was removed from Emblem in 0.5.0, for example:
    • template partial invocation with >
    • @-based data helpers (like @index in an each block)

To re-introduce support for vanilla Handlebars, our proposal is that the AST should be enhanced to support these syntaxes explicitly. Once that happens, a seperate vanilla template compiler can be added that ouputs vanilla syntax or raises errors as is appropriate.