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node_modules/effect/dist/cjs/internal/differ/contextPatch.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.patch = exports.empty = exports.diff = exports.combine = exports.ContextPatchTypeId = void 0;
+var Chunk = _interopRequireWildcard(require("../../Chunk.js"));
+var Equal = _interopRequireWildcard(require("../../Equal.js"));
+var Dual = _interopRequireWildcard(require("../../Function.js"));
+var _context = require("../context.js");
+var _data = require("../data.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 */
+const ContextPatchTypeId = exports.ContextPatchTypeId = /*#__PURE__*/Symbol.for("effect/DifferContextPatch");
+function variance(a) {
+  return a;
+}
+/** @internal */
+const PatchProto = {
+  ..._data.Structural.prototype,
+  [ContextPatchTypeId]: {
+    _Value: variance,
+    _Patch: variance
+  }
+};
+const EmptyProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
+  _tag: "Empty"
+});
+const _empty = /*#__PURE__*/Object.create(EmptyProto);
+/**
+ * @internal
+ */
+const empty = () => _empty;
+exports.empty = empty;
+const AndThenProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
+  _tag: "AndThen"
+});
+const makeAndThen = (first, second) => {
+  const o = Object.create(AndThenProto);
+  o.first = first;
+  o.second = second;
+  return o;
+};
+const AddServiceProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
+  _tag: "AddService"
+});
+const makeAddService = (key, service) => {
+  const o = Object.create(AddServiceProto);
+  o.key = key;
+  o.service = service;
+  return o;
+};
+const RemoveServiceProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
+  _tag: "RemoveService"
+});
+const makeRemoveService = key => {
+  const o = Object.create(RemoveServiceProto);
+  o.key = key;
+  return o;
+};
+const UpdateServiceProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
+  _tag: "UpdateService"
+});
+const makeUpdateService = (key, update) => {
+  const o = Object.create(UpdateServiceProto);
+  o.key = key;
+  o.update = update;
+  return o;
+};
+/** @internal */
+const diff = (oldValue, newValue) => {
+  const missingServices = new Map(oldValue.unsafeMap);
+  let patch = empty();
+  for (const [tag, newService] of newValue.unsafeMap.entries()) {
+    if (missingServices.has(tag)) {
+      const old = missingServices.get(tag);
+      missingServices.delete(tag);
+      if (!Equal.equals(old, newService)) {
+        patch = combine(makeUpdateService(tag, () => newService))(patch);
+      }
+    } else {
+      missingServices.delete(tag);
+      patch = combine(makeAddService(tag, newService))(patch);
+    }
+  }
+  for (const [tag] of missingServices.entries()) {
+    patch = combine(makeRemoveService(tag))(patch);
+  }
+  return patch;
+};
+/** @internal */
+exports.diff = diff;
+const combine = exports.combine = /*#__PURE__*/Dual.dual(2, (self, that) => makeAndThen(self, that));
+/** @internal */
+const patch = exports.patch = /*#__PURE__*/Dual.dual(2, (self, context) => {
+  if (self._tag === "Empty") {
+    return context;
+  }
+  let wasServiceUpdated = false;
+  let patches = Chunk.of(self);
+  const updatedContext = new Map(context.unsafeMap);
+  while (Chunk.isNonEmpty(patches)) {
+    const head = Chunk.headNonEmpty(patches);
+    const tail = Chunk.tailNonEmpty(patches);
+    switch (head._tag) {
+      case "Empty":
+        {
+          patches = tail;
+          break;
+        }
+      case "AddService":
+        {
+          updatedContext.set(head.key, head.service);
+          patches = tail;
+          break;
+        }
+      case "AndThen":
+        {
+          patches = Chunk.prepend(Chunk.prepend(tail, head.second), head.first);
+          break;
+        }
+      case "RemoveService":
+        {
+          updatedContext.delete(head.key);
+          patches = tail;
+          break;
+        }
+      case "UpdateService":
+        {
+          updatedContext.set(head.key, head.update(updatedContext.get(head.key)));
+          wasServiceUpdated = true;
+          patches = tail;
+          break;
+        }
+    }
+  }
+  if (!wasServiceUpdated) {
+    return (0, _context.makeContext)(updatedContext);
+  }
+  const map = new Map();
+  for (const [tag] of context.unsafeMap) {
+    if (updatedContext.has(tag)) {
+      map.set(tag, updatedContext.get(tag));
+      updatedContext.delete(tag);
+    }
+  }
+  for (const [tag, s] of updatedContext) {
+    map.set(tag, s);
+  }
+  return (0, _context.makeContext)(map);
+});
+//# sourceMappingURL=contextPatch.js.map