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use crate::hlua::{AnyHashableLuaValue, AnyLuaValue};
use std::collections;
use std::collections::HashMap;
#[derive(Debug, Default)]
pub struct LuaMap(HashMap<AnyHashableLuaValue, AnyLuaValue>);
impl LuaMap {
#[inline]
pub fn new() -> LuaMap {
LuaMap::default()
}
#[inline]
pub fn is_empty(&self) -> bool {
self.0.is_empty()
}
#[inline]
pub fn insert<K: Into<String>, V: Into<AnyLuaValue>>(&mut self, k: K, v: V) {
self.0.insert(AnyHashableLuaValue::LuaString(k.into()), v.into());
}
#[inline]
pub fn insert_str<K: Into<String>, V: Into<String>>(&mut self, k: K, v: V) {
self.0.insert(AnyHashableLuaValue::LuaString(k.into()), AnyLuaValue::LuaString(v.into()));
}
#[inline]
pub fn insert_num<K: Into<String>>(&mut self, k: K, v: f64) {
self.0.insert(AnyHashableLuaValue::LuaString(k.into()), AnyLuaValue::LuaNumber(v));
}
}
impl IntoIterator for LuaMap {
type Item = (AnyHashableLuaValue, AnyLuaValue);
type IntoIter = collections::hash_map::IntoIter<AnyHashableLuaValue, AnyLuaValue>;
fn into_iter(self) -> Self::IntoIter {
self.0.into_iter()
}
}
impl From<HashMap<String, String>> for LuaMap {
fn from(x: HashMap<String, String>) -> LuaMap {
let mut map = LuaMap::new();
for (k, v) in x {
map.insert_str(k, v);
}
map
}
}
impl From<HashMap<AnyHashableLuaValue, AnyLuaValue>> for LuaMap {
fn from(x: HashMap<AnyHashableLuaValue, AnyLuaValue>) -> LuaMap {
LuaMap(x)
}
}
impl From<Vec<(AnyLuaValue, AnyLuaValue)>> for LuaMap {
fn from(x: Vec<(AnyLuaValue, AnyLuaValue)>) -> LuaMap {
let mut map = LuaMap::new();
for (k, v) in x {
if let AnyLuaValue::LuaString(k) = k {
map.insert(k, v);
}
}
map
}
}
impl From<LuaMap> for HashMap<AnyHashableLuaValue, AnyLuaValue> {
fn from(x: LuaMap) -> HashMap<AnyHashableLuaValue, AnyLuaValue> {
x.0
}
}
impl From<LuaMap> for AnyLuaValue {
fn from(x: LuaMap) -> AnyLuaValue {
AnyLuaValue::LuaArray(
x.into_iter()
.filter_map(|(k, v)| {
match k {
AnyHashableLuaValue::LuaString(x) => Some((AnyLuaValue::LuaString(x), v)),
_ => None,
}
})
.collect()
)
}
}