Добавлена ДБ

node_modules/effect/dist/cjs/internal/ringBuffer.js

@@ -0,0 +1,64 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.RingBuffer = void 0;
+var Chunk = _interopRequireWildcard(require("../Chunk.js"));
+var _Function = require("../Function.js");
+var Option = _interopRequireWildcard(require("../Option.js"));
+function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
+/** @internal */
+class RingBuffer {
+  capacity;
+  array;
+  size = 0;
+  current = 0;
+  constructor(capacity) {
+    this.capacity = capacity;
+    this.array = Array.from({
+      length: capacity
+    }, _Function.constUndefined);
+  }
+  head() {
+    return Option.fromNullable(this.array[this.current]);
+  }
+  lastOrNull() {
+    if (this.size === 0) {
+      return undefined;
+    }
+    const index = this.current === 0 ? this.array.length - 1 : this.current - 1;
+    return this.array[index] ?? undefined;
+  }
+  put(value) {
+    this.array[this.current] = value;
+    this.increment();
+  }
+  dropLast() {
+    if (this.size > 0) {
+      this.decrement();
+      this.array[this.current] = undefined;
+    }
+  }
+  toChunk() {
+    const begin = this.current - this.size;
+    const newArray = begin < 0 ? [...this.array.slice(this.capacity + begin, this.capacity), ...this.array.slice(0, this.current)] : this.array.slice(begin, this.current);
+    return Chunk.fromIterable(newArray);
+  }
+  increment() {
+    if (this.size < this.capacity) {
+      this.size += 1;
+    }
+    this.current = (this.current + 1) % this.capacity;
+  }
+  decrement() {
+    this.size -= 1;
+    if (this.current > 0) {
+      this.current -= 1;
+    } else {
+      this.current = this.capacity - 1;
+    }
+  }
+}
+exports.RingBuffer = RingBuffer;
+//# sourceMappingURL=ringBuffer.js.map