parse cache #3575
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parse cache #3575
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I added an
@lru_cacheto parse_rules in a previous PR, for a decent speedup. On reflection, this was naive as there was additional state. This update adds a manual "parse cache", which is cleared if variables are update.The startup time for demo.py went from 177ms to 126ms. Not too shabby.
The main reason this happens is that inherited CSS was parsed multiple times. I.e. the default CSS in widget.py.