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Ticket 3059: Report the correct line number in unused functions warnings

This commit is contained in:
Simon Martin 2011-09-18 07:13:39 +02:00
parent b5d22fda0d
commit b493e4bf7b
3 changed files with 28 additions and 9 deletions
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17
lib/checkunusedfunctions.cpp
View File

@ -74,7 +74,7 @@ void CheckUnusedFunctions::parseTokens(const Tokenizer &tokenizer)
! Token::simpleMatch(tok2, ") const {") &&
! Token::simpleMatch(tok2, ") const throw ( ) {") &&
! Token::simpleMatch(tok2, ") throw ( ) {"))
funcname = NULL;
funcname = 0;
break;
}
}
@ -83,10 +83,14 @@ void CheckUnusedFunctions::parseTokens(const Tokenizer &tokenizer)
{
FunctionUsage &func = _functions[ funcname->str()];
if(!func.lineNumber)
func.lineNumber = funcname->linenr();
// No filename set yet..
if (func.filename.empty())
{
func.filename = tokenizer.getFiles()->at(0);
}
// Multiple files => filename = "+"
else if (func.filename != tokenizer.getFiles()->at(0))
{
@ -141,7 +145,6 @@ void CheckUnusedFunctions::parseTokens(const Tokenizer &tokenizer)
if (func.filename.empty() || func.filename == "+")
func.usedOtherFile = true;
else
func.usedSameFile = true;
}
@ -167,7 +170,7 @@ void CheckUnusedFunctions::check(ErrorLogger * const errorLogger)
filename = "";
else
filename = func.filename;
unusedFunctionError(errorLogger, filename, it->first);
unusedFunctionError(errorLogger, filename, func.lineNumber, it->first);
}
else if (! func.usedOtherFile)
{
@ -181,14 +184,16 @@ void CheckUnusedFunctions::check(ErrorLogger * const errorLogger)
}
}
void CheckUnusedFunctions::unusedFunctionError(ErrorLogger * const errorLogger, const std::string &filename, const std::string &funcname)
void CheckUnusedFunctions::unusedFunctionError(ErrorLogger * const errorLogger,
const std::string &filename, unsigned int lineNumber,
const std::string &funcname)
{
std::list<ErrorLogger::ErrorMessage::FileLocation> locationList;
if (!filename.empty())
{
ErrorLogger::ErrorMessage::FileLocation fileLoc;
fileLoc.setfile(filename);
fileLoc.line = 1;
fileLoc.line = lineNumber;
locationList.push_back(fileLoc);
}

9
lib/checkunusedfunctions.h
View File

@ -53,13 +53,15 @@ private:
void getErrorMessages(ErrorLogger *errorLogger, const Settings *settings)
{
CheckUnusedFunctions c(0, settings, errorLogger);
c.unusedFunctionError(errorLogger, "", "funcName");
c.unusedFunctionError(errorLogger, "", 0, "funcName");
}
/**
* Dummy implementation, just to provide error for --errorlist
*/
void unusedFunctionError(ErrorLogger * const errorLogger, const std::string &filename, const std::string &funcname);
void unusedFunctionError(ErrorLogger * const errorLogger,
const std::string &filename, unsigned int lineNumber,
const std::string &funcname);
/**
* Dummy implementation, just to provide error for --errorlist
@ -82,10 +84,11 @@ private:
class FunctionUsage
{
public:
FunctionUsage() : usedSameFile(false), usedOtherFile(false)
FunctionUsage() : lineNumber(0), usedSameFile(false), usedOtherFile(false)
{ }
std::string filename;
unsigned int lineNumber;
bool usedSameFile;
bool usedOtherFile;
};

11
test/testunusedfunctions.cpp
View File

@ -47,6 +47,8 @@ private:
TEST_CASE(initializationIsNotAFunction);
TEST_CASE(multipleFiles); // same function name in multiple files
TEST_CASE(lineNumber); // Ticket 3059
}
void check(const char code[])
@ -216,6 +218,15 @@ private:
ASSERT_EQUALS("[test1.cpp:1]: (style) The function 'f' is never used\n",errout.str());
}
void lineNumber()
{
check("void foo() {}\n"
"void bar() {}\n"
"int main()\n");
ASSERT_EQUALS("[test.cpp:2]: (style) The function 'bar' is never used\n"
"[test.cpp:1]: (style) The function 'foo' is never used\n", errout.str());
}
};
REGISTER_TEST(TestUnusedFunctions)