lumesh 0.18.2

a lighting shell ⚡ bash alternative
Documentation 
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use crate::expression::TableData;

use super::{Environment, Expression, Int};
use std::{
    collections::{BTreeMap, BTreeSet, HashMap},
    rc::Rc,
};

impl From<u8> for Expression {
    fn from(x: u8) -> Self {
        Self::Integer(x as Int)
    }
}

impl From<Int> for Expression {
    fn from(x: Int) -> Self {
        Self::Integer(x)
    }
}

impl From<f64> for Expression {
    fn from(x: f64) -> Self {
        Self::Float(x)
    }
}

impl From<&str> for Expression {
    fn from(x: &str) -> Self {
        Self::String(x.to_string())
    }
}

impl From<String> for Expression {
    fn from(x: String) -> Self {
        Self::String(x)
    }
}

// impl From<Vec<u8>> for Expression {
//     fn from(x: Vec<u8>) -> Self {
//         Self::Bytes(x)
//     }
// }

impl From<bool> for Expression {
    fn from(x: bool) -> Self {
        Self::Boolean(x)
    }
}

impl<T> From<HashMap<String, T>> for Expression
where
    T: Into<Self>,
{
    fn from(map: HashMap<String, T>) -> Self {
        Self::HMap(Rc::new(
            map.into_iter()
                .map(|(name, item)| (name, item.into()))
                .collect::<HashMap<String, Self>>(),
        ))
    }
}

impl<T> From<BTreeMap<String, T>> for Expression
where
    T: Into<Self>,
{
    fn from(map: BTreeMap<String, T>) -> Self {
        Self::Map(Rc::new(
            map.into_iter()
                .map(|(name, item)| (name, item.into()))
                .collect::<BTreeMap<String, Self>>(),
        ))
    }
}

impl<T> From<Vec<T>> for Expression
where
    T: Into<Self>,
{
    fn from(list: Vec<T>) -> Self {
        Self::List(Rc::new(
            list.into_iter()
                .map(|item| item.into())
                .collect::<Vec<Self>>(),
        ))
    }
}

impl<T> From<BTreeSet<T>> for Expression
where
    T: Into<Self>,
{
    fn from(set: BTreeSet<T>) -> Self {
        Self::BSet(Rc::new(
            set.into_iter()
                .map(|item| item.into())
                .collect::<BTreeSet<Self>>(),
        ))
    }
}

// 添加 From trait 实现
impl From<TableData> for Expression {
    fn from(table: TableData) -> Self {
        Self::Table(table)
    }
}

impl From<Environment> for Expression {
    fn from(env: Environment) -> Self {
        Self::from(env.get_bindings_map())
    }
}