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Fix #14413 : Add tag line and column in typedef-info in dump file #8134

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Fix #14413 : Add tag line and column in typedef-info in dump file #8134

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21 changes: 19 additions & 2 deletions lib/tokenize.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -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) {
Expand Down Expand Up @@ -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) {
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@danmar danmar Jan 20, 2026 •
edited
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I know we talked about it but I feel skeptic about removing this condition.

Maybe you can search for the tagname like this:

    if (Token::Match(typeDef->next(), "struct|enum|class|union %name% {") && typeDef->strAt(2) == typeName->str())
           typedefInfo.tagToken = typeDef->tokAt(2);
    else
           typedefInfo.tagToken = nullptr;

There might be some alternative syntax we want to handle later but we could start with this.

Expand Down Expand Up @@ -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));
Expand Down Expand Up @@ -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 += "\"";
Expand Down
1 change: 1 addition & 0 deletions lib/tokenize.h
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Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down
14 changes: 13 additions & 1 deletion test/testsimplifytypedef.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -259,6 +259,7 @@ class TestSimplifyTypedef : public TestFixture {
TEST_CASE(typedefInfo1);
TEST_CASE(typedefInfo2);
TEST_CASE(typedefInfo3);
TEST_CASE(typedefInfo4);
}

class TokenizerTest : public Tokenizer
Expand Down Expand Up @@ -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"
Expand Down Expand Up @@ -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)
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