flash_rowan 0.5.7

Biome's custom Rowan definition (forked from biome_rowan)
Documentation 
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mod element;
mod node;
mod node_cache;
mod token;
mod trivia;

pub(crate) use self::{
    element::{GreenElement, GreenElementRef},
    node::{Child, Children, GreenNode, GreenNodeData, Slot},
    token::{GreenToken, GreenTokenData},
    trivia::GreenTrivia,
};

pub use self::node_cache::NodeCache;
pub(crate) use self::node_cache::NodeCacheNodeEntryMut;

/// RawSyntaxKind is a type tag for each token or node.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct RawSyntaxKind(pub u16);

#[cfg(feature = "countme")]
pub(crate) fn has_live() -> bool {
    node::has_live() || token::has_live() || trivia::has_live()
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::green::trivia::GreenTrivia;

    #[test]
    fn assert_send_sync() {
        fn f<T: Send + Sync>() {}
        f::<GreenNode>();
        f::<GreenToken>();
        f::<GreenElement>();
    }

    #[test]
    fn test_size_of() {
        use std::mem::size_of;

        assert_eq!(8, size_of::<GreenNode>());
        assert_eq!(8, size_of::<GreenToken>());
        assert_eq!(8, size_of::<GreenTrivia>());
        assert_eq!(16, size_of::<GreenElement>());
    }
}