feat(core): stringify util

Author: Hanssen0

.changeset/chilled-pumas-reflect.md

@@ -0,0 +1,5 @@
+---
+"@ckb-ccc/core": minor
+---
+
+feat(core): stringify util

packages/core/src/ckb/transaction.ts

@@ -548,6 +548,14 @@ export class CellInput extends mol.Entity.Base<CellInputLike, CellInput>() {
     this.cellOutput = cell.cellOutput;
     this.outputData = cell.outputData;
   }
+
+  clone(): CellInput {
+    const cloned = super.clone();
+    cloned.cellOutput = this.cellOutput;
+    cloned.outputData = this.outputData;
+
+    return cloned;
+  }
 }
 export const CellInputVec = mol.vector(CellInput);
 
@@ -900,6 +908,11 @@ export class Transaction extends mol.Entity.Base<
     });
   }
 
+  /**
+   * @deprecated
+   * Use ccc.stringify instead.
+   * stringify the tx to JSON string.
+   */
   stringify(): string {
     return JSON.stringify(this, (_, value) => {
       if (typeof value === "bigint") {

packages/core/src/utils/index.ts

@@ -1,4 +1,4 @@
-import { NumLike, numFrom } from "../num/index.js";
+import { NumLike, numFrom, numToHex } from "../num/index.js";
 
 /**
  * A type safe way to apply a transformer on a value if it's not empty.
@@ -183,3 +183,16 @@ export type Constructor<T> = {
 export function isWebview(userAgent: string): boolean {
   return /webview|wv|ip((?!.*Safari)|(?=.*like Safari))/i.test(userAgent);
 }
+
+/**
+ * @public
+ */
+export function stringify(val: unknown) {
+  return JSON.stringify(val, (_, value) => {
+    if (typeof value === "bigint") {
+      return numToHex(value);
+    }
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-return
+    return value;
+  });
+}