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system/node_modules/ethers/lib.commonjs/providers/signer-noncemanager.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.NonceManager = void 0;
+const index_js_1 = require("../utils/index.js");
+const abstract_signer_js_1 = require("./abstract-signer.js");
+/**
+ *  A **NonceManager** wraps another [[Signer]] and automatically manages
+ *  the nonce, ensuring serialized and sequential nonces are used during
+ *  transaction.
+ */
+class NonceManager extends abstract_signer_js_1.AbstractSigner {
+    /**
+     *  The Signer being managed.
+     */
+    signer;
+    #noncePromise;
+    #delta;
+    /**
+     *  Creates a new **NonceManager** to manage %%signer%%.
+     */
+    constructor(signer) {
+        super(signer.provider);
+        (0, index_js_1.defineProperties)(this, { signer });
+        this.#noncePromise = null;
+        this.#delta = 0;
+    }
+    async getAddress() {
+        return this.signer.getAddress();
+    }
+    connect(provider) {
+        return new NonceManager(this.signer.connect(provider));
+    }
+    async getNonce(blockTag) {
+        if (blockTag === "pending") {
+            if (this.#noncePromise == null) {
+                this.#noncePromise = super.getNonce("pending");
+            }
+            const delta = this.#delta;
+            return (await this.#noncePromise) + delta;
+        }
+        return super.getNonce(blockTag);
+    }
+    /**
+     *  Manually increment the nonce. This may be useful when managng
+     *  offline transactions.
+     */
+    increment() {
+        this.#delta++;
+    }
+    /**
+     *  Resets the nonce, causing the **NonceManager** to reload the current
+     *  nonce from the blockchain on the next transaction.
+     */
+    reset() {
+        this.#delta = 0;
+        this.#noncePromise = null;
+    }
+    async sendTransaction(tx) {
+        const noncePromise = this.getNonce("pending");
+        this.increment();
+        tx = await this.signer.populateTransaction(tx);
+        tx.nonce = await noncePromise;
+        // @TODO: Maybe handle interesting/recoverable errors?
+        // Like don't increment if the tx was certainly not sent
+        return await this.signer.sendTransaction(tx);
+    }
+    signTransaction(tx) {
+        return this.signer.signTransaction(tx);
+    }
+    signMessage(message) {
+        return this.signer.signMessage(message);
+    }
+    signTypedData(domain, types, value) {
+        return this.signer.signTypedData(domain, types, value);
+    }
+}
+exports.NonceManager = NonceManager;
+//# sourceMappingURL=signer-noncemanager.js.map