feat: ✨ add typing to ethereum signers

src/signing/chains/InjectedTypedEthereumSigner.ts

@@ -1,14 +1,29 @@
 import { SignatureConfig, SIG_CONFIG } from "../../constants";
 import { verifyTypedData } from "@ethersproject/wallet";
-import InjectedEthereumSigner from "./injectedEthereumSigner";
 import { domain, types } from "./TypedEthereumSigner";
+import type { TypedDataDomain, TypedDataField } from "@ethersproject/abstract-signer";
+import type { Signer } from "../index";
 
-export default class InjectedTypedEthereumSigner extends InjectedEthereumSigner {
+export interface InjectedTypedEthereumSignerMinimalSigner {
+  getAddress: () => Promise<string>;
+  _signTypedData(domain: TypedDataDomain, types: Record<string, TypedDataField[]>, value: Record<string, any>): Promise<string>;
+}
+
+export interface InjectedTypedEthereumSignerMinimalProvider {
+  getSigner(): InjectedTypedEthereumSignerMinimalSigner;
+}
+
+export class InjectedTypedEthereumSigner implements Signer {
   readonly ownerLength: number = SIG_CONFIG[SignatureConfig.TYPEDETHEREUM].pubLength;
   readonly signatureLength: number = SIG_CONFIG[SignatureConfig.TYPEDETHEREUM].sigLength;
   readonly signatureType: SignatureConfig = SignatureConfig.TYPEDETHEREUM;
   private address: string;
+  protected signer: InjectedTypedEthereumSignerMinimalSigner;
+  public publicKey: Buffer;
 
+  constructor(provider: InjectedTypedEthereumSignerMinimalProvider) {
+    this.signer = provider.getSigner();
+  }
   async ready(): Promise<void> {
     this.address = (await this.signer.getAddress()).toString().toLowerCase();
     this.publicKey = Buffer.from(this.address); // pk *is* address
@@ -29,3 +44,4 @@ export default class InjectedTypedEthereumSigner extends InjectedEthereumSigner
     return address.toLowerCase() === addr.toLowerCase();
   }
 }
+export default InjectedTypedEthereumSigner;

src/signing/chains/index.ts

@@ -1,6 +1,6 @@
 export { default as ArweaveSigner } from "./ArweaveSigner";
 export { default as InjectedSolanaSigner } from "./injectedSolanaSigner";
-export { default as InjectedEthereumSigner } from "./injectedEthereumSigner";
+export * from "./injectedEthereumSigner";
 export { default as SolanaSigner } from "./SolanaSigner";
 export { default as PolygonSigner } from "./PolygonSigner";
 export { default as NearSigner } from "./NearSigner";
@@ -12,5 +12,5 @@ export { default as AptosSigner } from "./AptosSigner";
 export { default as InjectedAptosSigner } from "./InjectedAptosSigner";
 export { default as MultiSignatureAptosSigner } from "./multiSignatureAptos";
 export { default as TypedEthereumSigner } from "./TypedEthereumSigner";
-export { default as InjectedTypedEthereumSigner } from "./InjectedTypedEthereumSigner";
+export * from "./InjectedTypedEthereumSigner";
 export { default as ArconnectSigner } from "./arconnectSigner";

src/signing/chains/injectedEthereumSigner.ts

@@ -1,20 +1,27 @@
-import type { Web3Provider, JsonRpcSigner } from "@ethersproject/providers";
 import { hashMessage } from "@ethersproject/hash";
 import { recoverPublicKey } from "@ethersproject/signing-key";
 import type { Signer } from "../index";
 import { SignatureConfig, SIG_CONFIG } from "../../constants";
+import type { Bytes } from "@ethersproject/bytes";
 import { arrayify } from "@ethersproject/bytes";
 import { computeAddress } from "@ethersproject/transactions";
 import { verifyMessage } from "@ethersproject/wallet";
+export interface InjectedEthereumSignerMinimalSigner {
+  signMessage(message: string | Bytes): Promise<string>;
+}
+export interface InjectedEthereumSignerMinimalProvider {
+  getSigner(): InjectedEthereumSignerMinimalSigner;
+}
 
-export default class InjectedEthereumSigner implements Signer {
-  protected signer: JsonRpcSigner;
+export class InjectedEthereumSigner implements Signer {
+  // protected signer: JsonRpcSigner;
+  protected signer: InjectedEthereumSignerMinimalSigner;
   public publicKey: Buffer;
   readonly ownerLength: number = SIG_CONFIG[SignatureConfig.ETHEREUM].pubLength;
   readonly signatureLength: number = SIG_CONFIG[SignatureConfig.ETHEREUM].sigLength;
   readonly signatureType: SignatureConfig = SignatureConfig.ETHEREUM;
 
-  constructor(provider: Web3Provider) {
+  constructor(provider: InjectedEthereumSignerMinimalProvider) {
     this.signer = provider.getSigner();
   }
 
@@ -39,3 +46,4 @@ export default class InjectedEthereumSigner implements Signer {
     return verifyMessage(message, signature) === address;
   }
 }
+export default InjectedEthereumSigner;