Passing parameters to named blocks causes Parse Error

[shadyvd]

Attempting to pass a parameter to a named block in a {{yield to="named_block" "xyz"}} fashion causes the HBS Parser to throw an exception:
Expecting 'CLOSE_RAW_BLOCK', 'CLOSE', 'CLOSE_UNESCAPED', 'CLOSE_SEXPR', 'ID', 'OPEN_BLOCK_PARAMS', got 'STRING'

This is easily reproducible: Glimmer Playground Example

Stack:
Ember 3.26.1
Ember CLI 3.26.1
Glimmer/Component: 1.0.4

[pzuraq]

I believe this is an issue with the Jison parser. Positional arguments have to come first, before named arguments, so you should be able to do:

{{yield "xyz" to="named_block"}}

Unfortunately I don't think we can really give a better error message for this, because it occurs within Jison, which has very few if any abilities to hook into errors. We've been discussing rewriting that portion of the parser/compiler into something more modern which we would have more control over for that reason.

[shadyvd]

That worked for me. Thank you.

The Ember documentation definitely needs to be updated with this, though. Just a FYI.