From 0cef3f162964e555d92a244fb9b2df3af618674e Mon Sep 17 00:00:00 2001
From: Kevin Moore <kevmoo@users.noreply.github.com>
Date: Tue, 9 Jan 2024 14:25:54 -0800
Subject: [PATCH] Correctly handle null case in ProcessText.queryTextActions
 (#141205)

Replace `as Map<Object?, Object?>` to handle nullable case
Fixes runtime issue in Wasm

*Replace this paragraph with a description of what this PR is changing or adding, and why. Consider including before/after screenshots.*

*List which issues are fixed by this PR. You must list at least one issue. An issue is not required if the PR fixes something trivial like a typo.*

*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*
---
 .../lib/src/services/process_text.dart        | 25 +++++++++++--------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/packages/flutter/lib/src/services/process_text.dart b/packages/flutter/lib/src/services/process_text.dart
index 98abd9d27871..88b1180128bf 100644
--- a/packages/flutter/lib/src/services/process_text.dart
+++ b/packages/flutter/lib/src/services/process_text.dart
@@ -113,22 +113,27 @@ class DefaultProcessTextService implements ProcessTextService {
 
   @override
   Future<List<ProcessTextAction>> queryTextActions() async {
-    final List<ProcessTextAction> textActions = <ProcessTextAction>[];
-    final Map<Object?, Object?>? rawResults;
+    final Map<Object?, Object?> rawResults;
 
     try {
-      rawResults = await _processTextChannel.invokeMethod(
+      final Map<Object?, Object?>? result =
+          await _processTextChannel.invokeMethod(
         'ProcessText.queryTextActions',
-      ) as Map<Object?, Object?>;
-    } catch (e) {
-      return textActions;
-    }
+      ) as Map<Object?, Object?>?;
 
-    for (final Object? id in rawResults.keys) {
-      textActions.add(ProcessTextAction(id! as String, rawResults[id]! as String));
+      if (result == null) {
+        return <ProcessTextAction>[];
+      }
+
+      rawResults = result;
+    } catch (e) {
+      return <ProcessTextAction>[];
     }
 
-    return textActions;
+    return <ProcessTextAction>[
+      for (final Object? id in rawResults.keys)
+        ProcessTextAction(id! as String, rawResults[id]! as String),
+    ];
   }
 
   @override