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use async_graphql::Context;
use fnv::FnvHashMap;
use std::any::{Any, TypeId};
pub struct SchemaData(FnvHashMap<TypeId, Box<dyn Any + Sync + Send>>);
impl SchemaData {
pub fn new() -> Self {
Self(Default::default())
}
}
impl Default for SchemaData {
fn default() -> Self {
Self::new()
}
}
impl SchemaData {
pub fn insert<T: Any + Sync + Send>(&mut self, value: T) {
self.0.insert(TypeId::of::<T>(), Box::new(value));
}
pub fn get<T: Any + Sync + Send>(&self) -> Option<&T> {
self.0
.get(&TypeId::of::<T>())
.and_then(|v| v.downcast_ref::<T>())
}
pub fn get_mut<T: Any + Sync + Send>(&mut self) -> Option<&mut T> {
self.0
.get_mut(&TypeId::of::<T>())
.and_then(|v| v.downcast_mut::<T>())
}
pub fn get_or_default<T: Any + Sync + Send + Default>(&mut self) -> &mut T {
self.0
.entry(TypeId::of::<T>())
.or_insert_with(|| Box::<T>::default())
.downcast_mut()
.unwrap()
}
pub fn get_mut_or_default<T: Any + Sync + Send + Default>(&mut self) -> &mut T {
self.0
.entry(TypeId::of::<T>())
.or_insert_with(|| Box::<T>::default())
.downcast_mut()
.unwrap()
}
}
pub trait GetSchemaData {
fn get_schema_data(&self) -> &SchemaData;
}
impl GetSchemaData for Context<'_> {
fn get_schema_data(&self) -> &SchemaData {
self.data_unchecked()
}
}