From be5695e4ed2479853aa611605329510a32a02113 Mon Sep 17 00:00:00 2001
From: swasti16 <swasti1shrivastava@gmail.com>
Date: Mon, 19 Jan 2026 21:50:55 +0530
Subject: [PATCH] Add tag line and column in typedef-info in dump file

---
 lib/tokenize.cpp             | 21 +++++++++++++++++++--
 lib/tokenize.h               |  1 +
 test/testsimplifytypedef.cpp | 14 +++++++++++++-
 3 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 96c69bb4dd9..4aa2932198d 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -1104,6 +1104,10 @@ void Tokenizer::simplifyTypedef()
                 typedefInfo.filename = list.file(typedefToken);
                 typedefInfo.lineNumber = typedefToken->linenr();
                 typedefInfo.column = typedefToken->column();
+                if (Token::Match(typedefToken->next(), "struct|enum|class|union %name% {") && typedefToken->strAt(2) == typedefInfo.name)
+                    typedefInfo.tagToken = typedefToken->tokAt(2);
+                else
+                    typedefInfo.tagToken = nullptr;
                 typedefInfo.used = t.second.isUsed();
                 typedefInfo.isFunctionPointer = isFunctionPointer(t.second.nameToken());
                 if (typedefInfo.isFunctionPointer) {
@@ -1638,8 +1642,12 @@ void Tokenizer::simplifyTypedefCpp()
         TypedefInfo typedefInfo;
         typedefInfo.name = typeName->str();
         typedefInfo.filename = list.file(typeName);
-        typedefInfo.lineNumber = typeName->linenr();
-        typedefInfo.column = typeName->column();
+        typedefInfo.lineNumber = typeDef->linenr();
+        typedefInfo.column = typeDef->column();
+        if (Token::Match(typeDef->next(), "struct|enum|class|union %name% {") && typeDef->strAt(2) == typedefInfo.name)
+            typedefInfo.tagToken = typeDef->tokAt(2);
+        else
+            typedefInfo.tagToken = nullptr;
         typedefInfo.used = false;
         typedefInfo.isFunctionPointer = isFunctionPointer(typeName);
         if (typedefInfo.isFunctionPointer) {
@@ -3170,6 +3178,7 @@ bool Tokenizer::simplifyUsing()
                 usingInfo.filename = list.file(nameToken);
                 usingInfo.lineNumber = nameToken->linenr();
                 usingInfo.column = nameToken->column();
+                usingInfo.tagToken = nullptr;
                 usingInfo.used = true;
                 usingInfo.isFunctionPointer = false;
                 mTypedefInfo.push_back(std::move(usingInfo));
@@ -6326,7 +6335,15 @@ std::string Tokenizer::dumpTypedefInfo() const
         outs += " column=\"";
         outs += std::to_string(typedefInfo.column);
         outs += "\"";
+        if (typedefInfo.tagToken) {
+            outs += " tagline=\"";
+            outs += std::to_string(typedefInfo.tagToken->linenr());
+            outs += "\"";
 
+            outs += " tagcolumn=\"";
+            outs += std::to_string(typedefInfo.tagToken->column());
+            outs += "\"";
+        }
         outs += " used=\"";
         outs += std::to_string(typedefInfo.used?1:0);
         outs += "\"";
diff --git a/lib/tokenize.h b/lib/tokenize.h
index 616290e7e2a..c2541cb1c72 100644
--- a/lib/tokenize.h
+++ b/lib/tokenize.h
@@ -696,6 +696,7 @@ class CPPCHECKLIB Tokenizer {
         std::string filename;
         int lineNumber;
         int column;
+        const Token* tagToken;
         bool used;
         bool isFunctionPointer;
         std::vector<TypedefToken> typedefInfoTokens;
diff --git a/test/testsimplifytypedef.cpp b/test/testsimplifytypedef.cpp
index 087e3759901..e7085f0bc33 100644
--- a/test/testsimplifytypedef.cpp
+++ b/test/testsimplifytypedef.cpp
@@ -259,6 +259,7 @@ class TestSimplifyTypedef : public TestFixture {
         TEST_CASE(typedefInfo1);
         TEST_CASE(typedefInfo2);
         TEST_CASE(typedefInfo3);
+        TEST_CASE(typedefInfo4);
     }
 
     class TokenizerTest : public Tokenizer
@@ -4609,7 +4610,7 @@ class TestSimplifyTypedef : public TestFixture {
                       "      <token line=\"2\" column=\"35\" str=\")\"/>\n"
                       "    </info>\n"
                       "    <info name=\"int16_t\" file=\"file.c\" line=\"1\" column=\"1\" used=\"1\" isFunctionPointer=\"0\"/>\n"
-                      "    <info name=\"pfp16\" file=\"file.c\" line=\"4\" column=\"20\" used=\"0\" isFunctionPointer=\"1\">\n"
+                      "    <info name=\"pfp16\" file=\"file.c\" line=\"4\" column=\"4\" used=\"0\" isFunctionPointer=\"1\">\n"
                       "      <token line=\"4\" column=\"4\" str=\"typedef\"/>\n"
                       "      <token line=\"4\" column=\"12\" str=\"void\"/>\n"
                       "      <token line=\"4\" column=\"12\" str=\"(\"/>\n"
@@ -4638,6 +4639,17 @@ class TestSimplifyTypedef : public TestFixture {
                                                 "}\n");
         ASSERT_EQUALS("",xml);
     }
+
+    void typedefInfo4() {
+        const std::string xml = dumpTypedefInfo("typedef struct coord {\n"
+                                                "    uint16_t x;\n"
+                                                "    uint16_t y;\n"
+                                                "} coord;\n"
+                                                "coord c;");
+        ASSERT_EQUALS("  <typedef-info>\n"
+                      "    <info name=\"coord\" file=\"file.c\" line=\"1\" column=\"1\" tagline=\"1\" tagcolumn=\"16\" used=\"1\" isFunctionPointer=\"0\"/>\n"
+                      "  </typedef-info>\n", xml);
+    }
 };
 
 REGISTER_TEST(TestSimplifyTypedef)