MARKLESS_SHARED_FACTORY_CLASS_INSTANCE
A shared() factory cannot return a class instance: a Markless compiler error.
Error from the compiler, while it builds your .tsrx files.
What happened
Markless prints the message, the reason, and a suggestion:
MARKLESS_SHARED_FACTORY_CLASS_INSTANCE: shared() definition "<name>" returns <constructorName>, so the definition declares no fields at all: the payload carries nothing for it, and both the server render and the browser handler name a value that was never built.
A shared() factory declares the graph fields the payload carries and the server render rebuilds. A class instance declares none, so every read of it is a reference to a binding that does not exist in the module doing the reading.
Return a plain object instead: the durable data becomes fields, and the behaviour becomes methods on the same object (`shared(() => ({ index: 0, next() { ... } }))`).
https://markless.dev/errors/MARKLESS_SHARED_FACTORY_CLASS_INSTANCEWords in angle brackets change from case to case.
How to fix it
Start with the suggestion in the message above.
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Where it comes from
@markless/compiler raises this code. Source:
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