Add ponyfill for String.prototype.matchAll

Fixes #38

src/tasks/smali/parse-head.ts

@@ -1,3 +1,5 @@
+import matchAll from '../../utils/match-all'
+
 const CLASS_PATTERN = /\.class(?<keywords>.+)? L(?<name>[^\s]+);/
 const IMPLEMENTS_PATTERN = /\.implements L(?<name>[^\s]+);/g
 
@@ -25,7 +27,7 @@ export default function parseSmaliHead(contents: string): SmaliHead {
 
   return {
     name,
-    implements: Array.from(contents.matchAll(IMPLEMENTS_PATTERN)).map(
+    implements: Array.from(matchAll(contents, IMPLEMENTS_PATTERN)).map(
       match => match.groups!.name,
     ),
     isInterface: keywords?.trim().split(' ').includes('interface') ?? false,

src/utils/match-all.ts

@@ -0,0 +1,17 @@
+/**
+ * [Ponyfill](https://ponyfill.com/) for `String.prototype.matchAll`
+ * that can be removed once support for Node.js 10 is dropped.
+ */
+export default function matchAll(
+  input: string,
+  pattern: RegExp,
+): RegExpMatchArray[] {
+  const matches = []
+
+  let currentMatch = null
+  while ((currentMatch = pattern.exec(input))) {
+    matches.push(currentMatch)
+  }
+
+  return matches
+}