@@ -3749,6 +3749,12 @@ class AssistProcessor {
           selectedStatements.add(selectedNode);
         }
       }
+      // we want only statements in blocks
+      for (var statement in selectedStatements) {
+        if (statement.parent is! Block) {
+          return;
+        }
+      }
       // we want only statements
       if (selectedStatements.isEmpty ||
           selectedStatements.length != selectedNodes.length) {
 
@@ -19,6 +19,18 @@ class SurroundWithBlockTest extends AssistProcessorTest {
   @override
   AssistKind get kind => DartAssistKind.SURROUND_WITH_BLOCK;
 
+  test_notStatementInBlock() async {
+    await resolveTestUnit('''
+main() {
+  while (true)
+// start
+    print(0);
+// end
+}
+''');
+    await assertNoAssist();
+  }
+
   test_twoStatements() async {
     await resolveTestUnit('''
 main() {
Original file line number	Diff line number	Diff line change
`@@ -3749,6 +3749,12 @@ class AssistProcessor {`
`3749`	`3749`	`selectedStatements.add(selectedNode);`
`3750`	`3750`	`}`
`3751`	`3751`	`}`
	`3752`	`+ // we want only statements in blocks`
	`3753`	`+ for (var statement in selectedStatements) {`
	`3754`	`+ if (statement.parent is! Block) {`
	`3755`	`+ return;`
	`3756`	`+ }`
	`3757`	`+ }`
`3752`	`3758`	`// we want only statements`
`3753`	`3759`	`if (selectedStatements.isEmpty \|\|`
`3754`	`3760`	`selectedStatements.length != selectedNodes.length) {`