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Use syn-mid instead of syn + "full" #814

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merged 1 commit into from Oct 21, 2021

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jrose-signal
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Neon's use of syn is for the #[neon::main] macro, but that doesn't actually have to parse the function body to do its work. syn-mid treats the body as an opaque blob, which should be a little faster.

Neon's use of syn is for the #[neon::main] macro, but that doesn't
actually have to parse the function body to do its work. syn-mid
treats the body as an opaque blob, which should be a little faster.
@kjvalencik
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In my not-so-scientific test, this knocked off 2s building the Node-API tests (10.5s to 8.5s). Most of that savings is compiling syn without full. The actual parsing is negligibly faster, even with the very large main function that the tests use.

Solid win! Thanks!

@kjvalencik kjvalencik merged commit 483b059 into neon-bindings:main Oct 21, 2021
@jrose-signal jrose-signal deleted the jrose/syn-mid branch October 21, 2021 16:42
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2 participants