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use super::Merge;
use serde::{Deserialize, Serialize};
#[derive(Clone, Serialize, Debug)]
#[serde(untagged)]
pub enum BoolOrObject<T> {
Bool(bool),
Obj(T),
}
impl<T> From<bool> for BoolOrObject<T> {
fn from(v: bool) -> Self {
BoolOrObject::Bool(v)
}
}
impl<T> Default for BoolOrObject<T> {
fn default() -> Self {
Self::Bool(false)
}
}
impl<T> BoolOrObject<T> {
pub fn into_obj(self) -> Option<T>
where
T: Default,
{
match self {
BoolOrObject::Bool(true) => Some(Default::default()),
BoolOrObject::Bool(false) => None,
BoolOrObject::Obj(o) => Some(o),
}
}
}
impl<T> Merge for BoolOrObject<T>
where
T: Clone + Merge + Default,
{
fn merge(&mut self, from: &Self) {
match self {
BoolOrObject::Bool(l) => match from {
BoolOrObject::Bool(r) => {
*l |= *r;
}
BoolOrObject::Obj(_) => *self = from.clone(),
},
BoolOrObject::Obj(o) => match from {
BoolOrObject::Bool(r) => {
if *r {
o.merge(&Default::default())
}
}
BoolOrObject::Obj(r) => o.merge(r),
},
}
}
}
impl<'de, T> Deserialize<'de> for BoolOrObject<T>
where
T: Deserialize<'de>,
{
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: serde::Deserializer<'de>,
{
#[derive(Deserialize)]
#[serde(untagged)]
enum Deser<T> {
Bool(bool),
Obj(T),
EmptyObject(EmptyStruct),
}
#[derive(Deserialize)]
#[serde(deny_unknown_fields)]
struct EmptyStruct {}
let content = swc_common::private::serde::de::Content::deserialize(deserializer)?;
let deserializer =
swc_common::private::serde::de::ContentRefDeserializer::<D::Error>::new(&content);
let res = Deser::deserialize(deserializer);
match res {
Ok(v) => Ok(match v {
Deser::Bool(v) => BoolOrObject::Bool(v),
Deser::Obj(v) => BoolOrObject::Obj(v),
Deser::EmptyObject(_) => BoolOrObject::Bool(true),
}),
Err(..) => {
let d =
swc_common::private::serde::de::ContentDeserializer::<D::Error>::new(content);
Ok(BoolOrObject::Obj(T::deserialize(d)?))
}
}
}
}