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node_modules/effect/dist/esm/MutableQueue.js

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+/**
+ * @since 2.0.0
+ */
+import * as Chunk from "./Chunk.js";
+import * as Dual from "./Function.js";
+import { format, NodeInspectSymbol, toJSON } from "./Inspectable.js";
+import * as MutableList from "./MutableList.js";
+import { pipeArguments } from "./Pipeable.js";
+const TypeId = /*#__PURE__*/Symbol.for("effect/MutableQueue");
+/**
+ * @since 2.0.0
+ * @category symbol
+ */
+export const EmptyMutableQueue = /*#__PURE__*/Symbol.for("effect/mutable/MutableQueue/Empty");
+const MutableQueueProto = {
+  [TypeId]: TypeId,
+  [Symbol.iterator]() {
+    return Array.from(this.queue)[Symbol.iterator]();
+  },
+  toString() {
+    return format(this.toJSON());
+  },
+  toJSON() {
+    return {
+      _id: "MutableQueue",
+      values: Array.from(this).map(toJSON)
+    };
+  },
+  [NodeInspectSymbol]() {
+    return this.toJSON();
+  },
+  pipe() {
+    return pipeArguments(this, arguments);
+  }
+};
+const make = capacity => {
+  const queue = Object.create(MutableQueueProto);
+  queue.queue = MutableList.empty();
+  queue.capacity = capacity;
+  return queue;
+};
+/**
+ * Creates a new bounded `MutableQueue`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const bounded = capacity => make(capacity);
+/**
+ * Creates a new unbounded `MutableQueue`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const unbounded = () => make(undefined);
+/**
+ * Returns the current number of elements in the queue.
+ *
+ * @since 2.0.0
+ * @category getters
+ */
+export const length = self => MutableList.length(self.queue);
+/**
+ * Returns `true` if the queue is empty, `false` otherwise.
+ *
+ * @since 2.0.0
+ * @category getters
+ */
+export const isEmpty = self => MutableList.isEmpty(self.queue);
+/**
+ * Returns `true` if the queue is full, `false` otherwise.
+ *
+ * @since 2.0.0
+ * @category getters
+ */
+export const isFull = self => self.capacity === undefined ? false : MutableList.length(self.queue) === self.capacity;
+/**
+ * The **maximum** number of elements that a queue can hold.
+ *
+ * **Note**: unbounded queues can still implement this interface with
+ * `capacity = Infinity`.
+ *
+ * @since 2.0.0
+ * @category getters
+ */
+export const capacity = self => self.capacity === undefined ? Infinity : self.capacity;
+/**
+ * Offers an element to the queue.
+ *
+ * Returns whether the enqueue was successful or not.
+ *
+ * @since 2.0.0
+ */
+export const offer = /*#__PURE__*/Dual.dual(2, (self, value) => {
+  const queueLength = MutableList.length(self.queue);
+  if (self.capacity !== undefined && queueLength === self.capacity) {
+    return false;
+  }
+  MutableList.append(value)(self.queue);
+  return true;
+});
+/**
+ * Enqueues a collection of values into the queue.
+ *
+ * Returns a `Chunk` of the values that were **not** able to be enqueued.
+ *
+ * @since 2.0.0
+ */
+export const offerAll = /*#__PURE__*/Dual.dual(2, (self, values) => {
+  const iterator = values[Symbol.iterator]();
+  let next;
+  let remainder = Chunk.empty();
+  let offering = true;
+  while (offering && (next = iterator.next()) && !next.done) {
+    offering = offer(next.value)(self);
+  }
+  while (next != null && !next.done) {
+    remainder = Chunk.prepend(next.value)(remainder);
+    next = iterator.next();
+  }
+  return Chunk.reverse(remainder);
+});
+/**
+ * Dequeues an element from the queue.
+ *
+ * Returns either an element from the queue, or the `def` param.
+ *
+ * **Note**: if there is no meaningful default for your type, you can always
+ * use `poll(MutableQueue.EmptyMutableQueue)`.
+ *
+ * @since 2.0.0
+ */
+export const poll = /*#__PURE__*/Dual.dual(2, (self, def) => {
+  if (MutableList.isEmpty(self.queue)) {
+    return def;
+  }
+  return MutableList.shift(self.queue);
+});
+/**
+ * Dequeues up to `n` elements from the queue.
+ *
+ * Returns a `List` of up to `n` elements.
+ *
+ * @since 2.0.0
+ */
+export const pollUpTo = /*#__PURE__*/Dual.dual(2, (self, n) => {
+  let result = Chunk.empty();
+  let count = 0;
+  while (count < n) {
+    const element = poll(EmptyMutableQueue)(self);
+    if (element === EmptyMutableQueue) {
+      break;
+    }
+    result = Chunk.prepend(element)(result);
+    count += 1;
+  }
+  return Chunk.reverse(result);
+});
+//# sourceMappingURL=MutableQueue.js.map