Updating parse to handle array arguments (#22)

* update parse to handle array arguments
* added additional tests for parse signature that includes an array parameter
Co-authored-by: Kyle Ribordy <hello@ribordy.tech>

src/index.ts

@@ -60,7 +60,7 @@ export class MethodRegistry {
     }
 
     if (rawName) {
-      const match = signature.match(new RegExp(`${rawName[1]}\\(+([a-z1-9,()]+)\\)`, 'u'));
+      const match = signature.match(new RegExp(`${rawName[1]}\\(+([a-z1-9,()\\[\\]]+)\\)`, 'u'));
       let matches;
       let args: { type: string }[] = [];
       if (match) {

test/index.js

@@ -129,3 +129,14 @@ test('parse signature that includes a tuple as the last param', function (t) {
   t.equal(parsed.args[4].type, 'bytes');
   t.end();
 });
+
+test('parse signature that includes an array param', function (t) {
+  const sig = 'method(uint256[],string)';
+  const parsed = registry.parse(sig);
+
+  t.equal(parsed.name, 'Method');
+  t.equal(parsed.args.length, 2);
+  t.equal(parsed.args[0].type, 'uint256[]');
+  t.equal(parsed.args[1].type, 'string');
+  t.end();
+});