From 152660119fb14f3c955b37e52dea49b321a51d4a Mon Sep 17 00:00:00 2001
From: chrchr-github <noreply@github.com>
Date: Wed, 10 Jun 2026 22:51:27 +0200
Subject: [PATCH] Fix  #11861 Syntax Error: AST broken for C++20 ranges

---
 lib/tokenlist.cpp     | 2 ++
 test/testtokenize.cpp | 1 +
 2 files changed, 3 insertions(+)

diff --git a/lib/tokenlist.cpp b/lib/tokenlist.cpp
index f98335badb7..5921621fed2 100644
--- a/lib/tokenlist.cpp
+++ b/lib/tokenlist.cpp
@@ -1696,6 +1696,8 @@ static Token * createAstAtToken(Token *tok)
                 tok->next()->astOperand1(tok);
                 tok->next()->astOperand2(colon);
 
+                createAstAtTokenInner(colon, tok->linkAt(1), cpp);
+
                 return decl;
             }
         }
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index 5f4d59503e2..ffe0fc84c62 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -6662,6 +6662,7 @@ class TestTokenizer : public TestFixture {
         ASSERT_EQUALS("foria:( asize.(", testAst("for(decltype(a.size()) i:a);"));
         ASSERT_EQUALS("forec0{([,(:( fb.return", testAst("for (auto e : c(0, [](auto f) { return f->b; }));")); // #10802
         ASSERT_EQUALS("forvar1{;;(", testAst("for(int var{1};;)")); // #12867
+        ASSERT_EQUALS("forxg{([(:( si.return", testAst("for (auto [x] : g([](S s) { return s.i; })) {}")); // #11861
 
         // for with initializer (c++20)
         ASSERT_EQUALS("forab=ca:;(", testAst("for(a=b;int c:a)"));