chore: rename @vben-core -> @core

packages/@core/shared/toolkit/src/diff.ts

@@ -0,0 +1,58 @@
+type Diff<T = any> = T;
+
+// 比较两个数组是否相等
+
+function arraysEqual<T>(a: T[], b: T[]): boolean {
+  if (a.length !== b.length) return false;
+  const counter = new Map<T, number>();
+  for (const value of a) {
+    counter.set(value, (counter.get(value) || 0) + 1);
+  }
+  for (const value of b) {
+    const count = counter.get(value);
+    if (count === undefined || count === 0) {
+      return false;
+    }
+    counter.set(value, count - 1);
+  }
+  return true;
+}
+
+// 深度对比两个值
+function deepEqual<T>(oldVal: T, newVal: T): boolean {
+  if (
+    typeof oldVal === 'object' &&
+    oldVal !== null &&
+    typeof newVal === 'object' &&
+    newVal !== null
+  ) {
+    return Array.isArray(oldVal) && Array.isArray(newVal)
+      ? arraysEqual(oldVal, newVal)
+      : diff(oldVal as any, newVal as any) === null;
+  } else {
+    return oldVal === newVal;
+  }
+}
+
+// 主要的 diff 函数
+function diff<T extends object>(
+  oldObj: T,
+  newObj: T,
+  ignoreFields: (keyof T)[] = [],
+): { [K in keyof T]?: Diff<T[K]> } | null {
+  const difference: { [K in keyof T]?: Diff<T[K]> } = {};
+
+  for (const key in oldObj) {
+    if (ignoreFields.includes(key)) continue;
+    const oldValue = oldObj[key];
+    const newValue = newObj[key];
+
+    if (!deepEqual(oldValue, newValue)) {
+      difference[key] = newValue;
+    }
+  }
+
+  return Object.keys(difference).length === 0 ? null : difference;
+}
+
+export { arraysEqual, diff };