import * as Effectable from "../Effectable.js";
import { dual } from "../Function.js";
import * as MutableRef from "../MutableRef.js";
import * as Option from "../Option.js";
import * as Readable from "../Readable.js";
import * as core from "./core.js";
/** @internal */
export const RefTypeId = /*#__PURE__*/Symbol.for("effect/Ref");
/** @internal */
export const refVariance = {
/* c8 ignore next */
_A: _ => _
};
class RefImpl extends Effectable.Class {
ref;
commit() {
return this.get;
}
[RefTypeId] = refVariance;
[Readable.TypeId] = Readable.TypeId;
constructor(ref) {
super();
this.ref = ref;
this.get = core.sync(() => MutableRef.get(this.ref));
}
get;
modify(f) {
return core.sync(() => {
const current = MutableRef.get(this.ref);
const [b, a] = f(current);
if (current !== a) {
MutableRef.set(a)(this.ref);
}
return b;
});
}
}
/** @internal */
export const unsafeMake = value => new RefImpl(MutableRef.make(value));
/** @internal */
export const make = value => core.sync(() => unsafeMake(value));
/** @internal */
export const get = self => self.get;
/** @internal */
export const set = /*#__PURE__*/dual(2, (self, value) => self.modify(() => [void 0, value]));
/** @internal */
export const getAndSet = /*#__PURE__*/dual(2, (self, value) => self.modify(a => [a, value]));
/** @internal */
export const getAndUpdate = /*#__PURE__*/dual(2, (self, f) => self.modify(a => [a, f(a)]));
/** @internal */
export const getAndUpdateSome = /*#__PURE__*/dual(2, (self, pf) => self.modify(value => {
const option = pf(value);
switch (option._tag) {
case "None":
{
return [value, value];
}
case "Some":
{
return [value, option.value];
}
}
}));
/** @internal */
export const setAndGet = /*#__PURE__*/dual(2, (self, value) => self.modify(() => [value, value]));
/** @internal */
export const modify = /*#__PURE__*/dual(2, (self, f) => self.modify(f));
/** @internal */
export const modifySome = /*#__PURE__*/dual(3, (self, fallback, pf) => self.modify(value => {
const option = pf(value);
switch (option._tag) {
case "None":
{
return [fallback, value];
}
case "Some":
{
return option.value;
}
}
}));
/** @internal */
export const update = /*#__PURE__*/dual(2, (self, f) => self.modify(a => [void 0, f(a)]));
/** @internal */
export const updateAndGet = /*#__PURE__*/dual(2, (self, f) => self.modify(a => {
const result = f(a);
return [result, result];
}));
/** @internal */
export const updateSome = /*#__PURE__*/dual(2, (self, f) => self.modify(a => [void 0, Option.match(f(a), {
onNone: () => a,
onSome: b => b
})]));
/** @internal */
export const updateSomeAndGet = /*#__PURE__*/dual(2, (self, pf) => self.modify(value => {
const option = pf(value);
switch (option._tag) {
case "None":
{
return [value, value];
}
case "Some":
{
return [option.value, option.value];
}
}
}));
/** @internal */
export const unsafeGet = self => MutableRef.get(self.ref);
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