feat: add Tulipe wrapper for all Ethers.js contract classes

src/composables/ethers/contract.js

@@ -0,0 +1,42 @@
+import {
+  Contract,
+  ERC20Contract
+ } from "ethers";
+
+import { TulipeContractProxy } from "../../index.js";
+
+export class TulipeContract extends Contract {
+  constructor (...args) {
+
+    // Determine proxy class
+    let proxyClass = TulipeContractProxy;
+    if (args[args.length - 1].prototype instanceof TulipeContractProxy) { // Last argument can be a proxy class
+      proxyClass = args.pop();
+    }
+
+    // Initialize parent constructor.
+    super(...args)
+
+    // Build and return proxy.
+    const proxy = new proxyClass(this)
+    return proxy
+  }
+}
+
+export class TulipeERC20Contract  extends ERC20Contract  {
+  constructor (...args) {
+
+    // Determine proxy class
+    let proxyClass = TulipeContractProxy;
+    if (args[args.length - 1].prototype instanceof TulipeContractProxy) { // Last argument can be a proxy class
+      proxyClass = args.pop();
+    }
+
+    // Initialize parent constructor.
+    super(...args)
+
+    // Build and return proxy.
+    const proxy = new proxyClass(this)
+    return proxy
+  }
+}