rexpr 1.0.7

Rust Json Object access Runtime
Documentation 
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use crate::ast::Node;
use std::collections::hash_map::RandomState;
use std::collections::HashMap;
use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard, TryLockResult};

#[derive(Debug)]
pub struct RWLockMapCache {
    pub shared: RwLock<std::collections::HashMap<String, Node>>,
}

impl RWLockMapCache {
    pub fn try_read(
        &self,
    ) -> TryLockResult<RwLockReadGuard<'_, HashMap<String, Node, RandomState>>> {
        self.shared.try_read()
    }
    pub fn try_write(
        &self,
    ) -> TryLockResult<RwLockWriteGuard<'_, HashMap<String, Node, RandomState>>> {
        self.shared.try_write()
    }
}