fix: $wip usage within brackets

Author: Tienisto

slang/lib/src/runner/wip.dart

@@ -199,12 +199,36 @@ class WipInvocationCollection {
     final invocationsList = <WipInvocationMatch>[];
 
     for (final match in regex.allMatches(sourceSanitized)) {
+      String original = match.group(0)!;
       final path = match.group(1)!;
-      final value = match.group(2)!;
+      String value = match.group(2)!;
+
+      if (value.contains(')')) {
+        // The regex is greedy and might capture too many closing parentheses.
+        // We need to find the matching closing parenthesis for the opening one.
+        final openParenIndex = original.indexOf('(');
+        if (openParenIndex != -1) {
+          int depth = 0;
+
+          for (int i = openParenIndex; i < original.length; i++) {
+            if (original[i] == '(') {
+              depth++;
+            } else if (original[i] == ')') {
+              depth--;
+              if (depth == 0) {
+                // Found the matching closing paren!
+                original = original.substring(0, i + 1);
+                value = original.substring(openParenIndex + 1, i);
+                break;
+              }
+            }
+          }
+        }
+      }
 
       final invocation = WipInvocationMatch.parse(
         interpolation: interpolation,
-        original: match.group(0)!,
+        original: original,
         path: path,
         value: value,
       );

slang/test/unit/runner/wip_test.dart

@@ -42,6 +42,42 @@ t.$wip.multilineMethod('test');
       expect(result.list[0].parameterMap, {});
     });
 
+    test('Should find invocation within brackets', () {
+      final result = f(r"f(t.$wip.a('b'));");
+
+      expect(result.map, {
+        'a': 'b',
+      });
+      expect(result.list.length, 1);
+      expect(
+        result.list[0].original,
+        r"""t.$wip.a('b')""",
+      );
+      expect(result.list[0].path, 'a');
+      expect(result.list[0].sanitizedValue, 'b');
+      expect(result.list[0].parameterMap, {});
+    });
+
+    test('Should find invocation within nested brackets', () {
+      final result = f(r"""
+f(
+  g(t.$wip.a('b')),
+);
+""");
+
+      expect(result.map, {
+        'a': 'b',
+      });
+      expect(result.list.length, 1);
+      expect(
+        result.list[0].original,
+        r"""t.$wip.a('b')""",
+      );
+      expect(result.list[0].path, 'a');
+      expect(result.list[0].sanitizedValue, 'b');
+      expect(result.list[0].parameterMap, {});
+    });
+
     test('Should find invocation with interpolation', () {
       final result = f(r'''
 final greeting = t.$wip.welcome.message('Hello, $name!');