minor: Preallocate parser::Input
#19690
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Apr 28, 2025
| pub fn with_capacity(capacity: usize) -> Self { | ||
| Self { | ||
| kind: Vec::with_capacity(capacity), | ||
| joint: Vec::with_capacity(capacity / size_of::<bits>()), |
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Should this round upwards ((capacity + size_of::<bits>() - 1) / size_of::<bits>())?
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This saves a whole lot 0.127 seconds in
rust-analyzer prime-caches .!