use std::{any::Any, collections::HashMap};
pub trait CloneableAny: Any + Send + Sync {
fn as_any(&self) -> &dyn Any;
fn as_any_mut(&mut self) -> &mut dyn Any;
fn into_any(self: Box<Self>) -> Box<dyn Any>;
fn clone_box(&self) -> Box<dyn CloneableAny>;
}
impl<T: Any + Clone + Send + Sync> CloneableAny for T {
fn as_any(&self) -> &dyn Any {
self
}
fn as_any_mut(&mut self) -> &mut dyn Any {
self
}
fn into_any(self: Box<Self>) -> Box<dyn Any> {
self
}
fn clone_box(&self) -> Box<dyn CloneableAny> {
Box::new(self.clone())
}
}
impl Clone for Box<dyn CloneableAny> {
fn clone(&self) -> Self {
self.clone_box()
}
}
pub trait AnyValue: Send + Sync {
fn as_any(&self) -> &dyn Any;
fn as_any_mut(&mut self) -> &mut dyn Any;
fn into_any(self: Box<Self>) -> Box<dyn Any>;
}
impl AnyValue for dyn CloneableAny {
fn as_any(&self) -> &dyn Any {
CloneableAny::as_any(self)
}
fn as_any_mut(&mut self) -> &mut dyn Any {
CloneableAny::as_any_mut(self)
}
fn into_any(self: Box<Self>) -> Box<dyn Any> {
CloneableAny::into_any(self)
}
}
#[derive(Debug, Clone, Default)]
pub struct AnyMap<V: ?Sized + AnyValue> {
map: Option<Box<HashMap<String, Box<V>>>>,
}
impl Clone for AnyMap<dyn CloneableAny> {
fn clone(&self) -> Self {
Self {
map: self.map.clone(),
}
}
}
impl<V: ?Sized + AnyValue> AnyMap<V> {
pub const fn new() -> Self {
Self { map: None }
}
pub fn get<T: 'static>(&self, key: impl AsRef<str>) -> Option<&T> {
self.map
.as_ref()
.and_then(|map| map.get(key.as_ref()))
.and_then(|b| (*b).as_any().downcast_ref())
}
pub fn get_mut<T: 'static>(&mut self, key: impl AsRef<str>) -> Option<&mut T> {
self.map
.as_mut()
.and_then(|map| map.get_mut(key.as_ref()))
.and_then(|b| b.as_any_mut().downcast_mut())
}
pub fn remove<T: 'static>(&mut self, key: impl AsRef<str>) -> Option<T> {
self.map
.as_mut()
.and_then(|map| map.remove(key.as_ref()))
.and_then(|b| b.into_any().downcast().ok().map(|b| *b))
}
pub fn clear(&mut self) {
if let Some(ref mut map) = self.map {
map.clear();
}
}
pub fn is_empty(&self) -> bool {
self.map.as_ref().is_none_or(|map| map.is_empty())
}
pub fn len(&self) -> usize {
self.map.as_ref().map_or(0, |map| map.len())
}
pub fn contains_key(&self, key: impl AsRef<str>) -> bool {
self.map
.as_ref()
.is_some_and(|map| map.contains_key(key.as_ref()))
}
pub fn extend(&mut self, other: Self) {
if let Some(other_map) = other.map {
if let Some(ref mut map) = self.map {
map.extend(*other_map);
} else {
self.map = Some(other_map);
}
}
}
pub fn iter(&self) -> AnyMapIter<'_, V> {
self.into_iter()
}
pub fn iter_mut(&mut self) -> AnyMapIterMut<'_, V> {
self.into_iter()
}
pub fn keys(&self) -> impl Iterator<Item = &String> {
self.iter().map(|(k, _)| k)
}
pub fn values(&self) -> impl Iterator<Item = &Box<V>> {
self.iter().map(|(_, v)| v)
}
pub fn values_mut(&mut self) -> impl Iterator<Item = &mut Box<V>> {
self.iter_mut().map(|(_, v)| v)
}
}
impl AnyMap<dyn CloneableAny> {
pub fn insert<T: Clone + Send + Sync + 'static>(
&mut self,
key: impl Into<String>,
val: T,
) -> Option<T> {
self.map
.get_or_insert_with(Box::default)
.insert(key.into(), Box::new(val))
.and_then(|b| b.into_any().downcast().ok().map(|b| *b))
}
pub fn set<T: Clone + Send + Sync + 'static>(&mut self, key: impl Into<String>, val: T) {
self.map
.get_or_insert_with(Box::default)
.insert(key.into(), Box::new(val));
}
pub fn get_or_insert_with<T>(&mut self, key: impl Into<String>, f: impl FnOnce() -> T) -> &mut T
where
T: Clone + Send + Sync + 'static,
{
let out = self
.map
.get_or_insert_with(Box::default)
.entry(key.into())
.or_insert_with(|| Box::new(f()));
out.as_any_mut().downcast_mut().unwrap()
}
pub fn get_or_insert<T>(&mut self, key: impl AsRef<str>, val: T) -> &mut T
where
T: Clone + Send + Sync + 'static,
{
self.get_or_insert_with(key.as_ref(), || val)
}
pub fn get_or_insert_default<T>(&mut self, key: impl AsRef<str>) -> &mut T
where
T: Default + Clone + Send + Sync + 'static,
{
self.get_or_insert_with(key.as_ref(), || T::default())
}
}
pub struct AnyMapIter<'a, V: ?Sized + AnyValue> {
inner: Option<std::collections::hash_map::Iter<'a, String, Box<V>>>,
}
impl<'a, V: ?Sized + AnyValue> Iterator for AnyMapIter<'a, V> {
type Item = (&'a String, &'a Box<V>);
fn next(&mut self) -> Option<Self::Item> {
self.inner.as_mut().and_then(|iter| iter.next())
}
fn size_hint(&self) -> (usize, Option<usize>) {
self.inner
.as_ref()
.map_or((0, Some(0)), |iter| iter.size_hint())
}
}
pub struct AnyMapIterMut<'a, V: ?Sized + AnyValue> {
inner: Option<std::collections::hash_map::IterMut<'a, String, Box<V>>>,
}
impl<'a, V: ?Sized + AnyValue> Iterator for AnyMapIterMut<'a, V> {
type Item = (&'a String, &'a mut Box<V>);
fn next(&mut self) -> Option<Self::Item> {
self.inner.as_mut().and_then(|iter| iter.next())
}
fn size_hint(&self) -> (usize, Option<usize>) {
self.inner
.as_ref()
.map_or((0, Some(0)), |iter| iter.size_hint())
}
}
pub struct AnyMapIntoIter<V: ?Sized + AnyValue> {
inner: std::collections::hash_map::IntoIter<String, Box<V>>,
}
impl<V: ?Sized + AnyValue> Iterator for AnyMapIntoIter<V> {
type Item = (String, Box<V>);
fn next(&mut self) -> Option<Self::Item> {
self.inner.next()
}
fn size_hint(&self) -> (usize, Option<usize>) {
self.inner.size_hint()
}
}
impl IntoIterator for AnyMap<dyn CloneableAny> {
type Item = (String, Box<dyn CloneableAny>);
type IntoIter = AnyMapIntoIter<dyn CloneableAny>;
fn into_iter(self) -> Self::IntoIter {
AnyMapIntoIter {
inner: self
.map
.map(|b| b.into_iter())
.unwrap_or_else(|| HashMap::new().into_iter()),
}
}
}
impl<'a, V: ?Sized + AnyValue> IntoIterator for &'a AnyMap<V> {
type Item = (&'a String, &'a Box<V>);
type IntoIter = AnyMapIter<'a, V>;
fn into_iter(self) -> Self::IntoIter {
AnyMapIter {
inner: self.map.as_ref().map(|b| b.iter()),
}
}
}
impl<'a, V: ?Sized + AnyValue> IntoIterator for &'a mut AnyMap<V> {
type Item = (&'a String, &'a mut Box<V>);
type IntoIter = AnyMapIterMut<'a, V>;
fn into_iter(self) -> Self::IntoIter {
AnyMapIterMut {
inner: self.map.as_mut().map(|b| b.iter_mut()),
}
}
}
#[cfg(feature = "minijinja")]
mod serializable_any {
use super::*;
pub trait SerializableAny: CloneableAny + erased_serde::Serialize {
fn clone_box_serializable(&self) -> Box<dyn SerializableAny>;
}
impl<T: Any + serde::Serialize + Clone + Send + Sync> SerializableAny for T {
fn clone_box_serializable(&self) -> Box<dyn SerializableAny> {
Box::new(self.clone())
}
}
impl Clone for Box<dyn SerializableAny> {
fn clone(&self) -> Self {
self.clone_box_serializable()
}
}
impl AnyValue for dyn SerializableAny {
fn as_any(&self) -> &dyn Any {
CloneableAny::as_any(self)
}
fn as_any_mut(&mut self) -> &mut dyn Any {
CloneableAny::as_any_mut(self)
}
fn into_any(self: Box<Self>) -> Box<dyn Any> {
CloneableAny::into_any(self)
}
}
erased_serde::serialize_trait_object!(SerializableAny);
impl Clone for AnyMap<dyn SerializableAny> {
fn clone(&self) -> Self {
Self {
map: self.map.clone(),
}
}
}
impl AnyMap<dyn SerializableAny> {
pub fn insert<T: serde::Serialize + Clone + Send + Sync + 'static>(
&mut self,
key: impl Into<String>,
val: T,
) -> Option<T> {
self.map
.get_or_insert_with(Box::default)
.insert(key.into(), Box::new(val))
.and_then(|b| b.into_any().downcast().ok().map(|b| *b))
}
pub fn set<T: serde::Serialize + Clone + Send + Sync + 'static>(
&mut self,
key: impl Into<String>,
val: T,
) {
self.map
.get_or_insert_with(Box::default)
.insert(key.into(), Box::new(val));
}
pub fn get_or_insert_with<T>(
&mut self,
key: impl Into<String>,
f: impl FnOnce() -> T,
) -> &mut T
where
T: serde::Serialize + Clone + Send + Sync + 'static,
{
let out = self
.map
.get_or_insert_with(Box::default)
.entry(key.into())
.or_insert_with(|| Box::new(f()));
out.as_any_mut().downcast_mut().unwrap()
}
pub fn get_or_insert<T>(&mut self, key: impl AsRef<str>, val: T) -> &mut T
where
T: serde::Serialize + Clone + Send + Sync + 'static,
{
self.get_or_insert_with(key.as_ref(), || val)
}
pub fn get_or_insert_default<T>(&mut self, key: impl AsRef<str>) -> &mut T
where
T: Default + serde::Serialize + Clone + Send + Sync + 'static,
{
self.get_or_insert_with(key.as_ref(), || T::default())
}
}
impl IntoIterator for AnyMap<dyn SerializableAny> {
type Item = (String, Box<dyn SerializableAny>);
type IntoIter = AnyMapIntoIter<dyn SerializableAny>;
fn into_iter(self) -> Self::IntoIter {
AnyMapIntoIter {
inner: self
.map
.map(|b| b.into_iter())
.unwrap_or_else(|| HashMap::new().into_iter()),
}
}
}
}
#[cfg(feature = "minijinja")]
pub use serializable_any::*;
#[cfg(not(feature = "minijinja"))]
pub use CloneableAny as SerializableAny;