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qwen/nodejs/node_modules/@ungap/structured-clone/esm/deserialize.js

@@ -0,0 +1,85 @@
+import {
+  VOID, PRIMITIVE,
+  ARRAY, OBJECT,
+  DATE, REGEXP, MAP, SET,
+  ERROR, BIGINT
+} from './types.js';
+
+const env = typeof self === 'object' ? self : globalThis;
+
+const deserializer = ($, _) => {
+  const as = (out, index) => {
+    $.set(index, out);
+    return out;
+  };
+
+  const unpair = index => {
+    if ($.has(index))
+      return $.get(index);
+
+    const [type, value] = _[index];
+    switch (type) {
+      case PRIMITIVE:
+      case VOID:
+        return as(value, index);
+      case ARRAY: {
+        const arr = as([], index);
+        for (const index of value)
+          arr.push(unpair(index));
+        return arr;
+      }
+      case OBJECT: {
+        const object = as({}, index);
+        for (const [key, index] of value)
+          object[unpair(key)] = unpair(index);
+        return object;
+      }
+      case DATE:
+        return as(new Date(value), index);
+      case REGEXP: {
+        const {source, flags} = value;
+        return as(new RegExp(source, flags), index);
+      }
+      case MAP: {
+        const map = as(new Map, index);
+        for (const [key, index] of value)
+          map.set(unpair(key), unpair(index));
+        return map;
+      }
+      case SET: {
+        const set = as(new Set, index);
+        for (const index of value)
+          set.add(unpair(index));
+        return set;
+      }
+      case ERROR: {
+        const {name, message} = value;
+        return as(new env[name](message), index);
+      }
+      case BIGINT:
+        return as(BigInt(value), index);
+      case 'BigInt':
+        return as(Object(BigInt(value)), index);
+      case 'ArrayBuffer':
+        return as(new Uint8Array(value).buffer, value);
+      case 'DataView': {
+        const { buffer } = new Uint8Array(value);
+        return as(new DataView(buffer), value);
+      }
+    }
+    return as(new env[type](value), index);
+  };
+
+  return unpair;
+};
+
+/**
+ * @typedef {Array<string,any>} Record a type representation
+ */
+
+/**
+ * Returns a deserialized value from a serialized array of Records.
+ * @param {Record[]} serialized a previously serialized value.
+ * @returns {any}
+ */
+export const deserialize = serialized => deserializer(new Map, serialized)(0);