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Suppressions: some cleanups (#4980) 

* Suppressions: merged `isSuppressedLocal()` into `isSuppressed()`

* avoid some unnecessary copies when adding suppressions

* TestSuppressions: improved readability of multiple line string literals

* supressions.h: got rid of unnecessary copy and assignment operators for `Suppressions::Suppression` - fixes `performance-move-const-arg` clang-tidy warning

* TestSuppressions: cleaned up a variable construction
This commit is contained in:
Oliver Stöneberg 2023-05-04 18:15:18 +02:00 committed by GitHub
parent d3bdb84650
commit a77ab9759c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 54 additions and 68 deletions
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10
lib/cppcheck.cpp
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@ -1608,14 +1608,8 @@ void CppCheck::reportErr(const ErrorMessage &msg)
// TODO: only convert if necessary
const Suppressions::ErrorMessage errorMessage = msg.toSuppressionsErrorMessage();
if (mUseGlobalSuppressions) {
if (mSettings.nomsg.isSuppressed(errorMessage)) {
return;
}
} else {
if (mSettings.nomsg.isSuppressedLocal(errorMessage)) {
return;
}
if (mSettings.nomsg.isSuppressed(errorMessage, mUseGlobalSuppressions)) {
return;
}
if (!mSettings.nofail.isSuppressed(errorMessage) && !mSettings.nomsg.isSuppressed(errorMessage)) {

3
lib/importproject.cpp
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@ -1274,8 +1274,7 @@ bool ImportProject::importCppcheckGuiProject(std::istream &istr, Settings *setti
for (const std::string &p : paths)
guiProject.pathNames.push_back(p);
for (const Suppressions::Suppression &supp : suppressions)
settings->nomsg.addSuppression(supp);
settings->nomsg.addSuppressions(std::move(suppressions));
settings->checkHeaders = temp.checkHeaders;
settings->checkUnusedTemplates = temp.checkUnusedTemplates;
settings->maxCtuDepth = temp.maxCtuDepth;

2
lib/preprocessor.cpp
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@ -179,7 +179,7 @@ static void addinlineSuppressions(const simplecpp::TokenList &tokens, const Sett
suppr.fileName = relativeFilename;
suppr.lineNumber = tok->location.line;
suppr.thisAndNextLine = thisAndNextLine;
suppressions.addSuppression(suppr);
suppressions.addSuppression(std::move(suppr));
}
}
}

32
lib/suppressions.cpp
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@ -110,7 +110,7 @@ std::string Suppressions::parseXmlFile(const char *filename)
return "Unknown suppression element \"" + std::string(e2->Name()) + "\", expected id/fileName/lineNumber/symbolName/hash";
}
const std::string err = addSuppression(s);
const std::string err = addSuppression(std::move(s));
if (!err.empty())
return err;
}
@ -218,10 +218,10 @@ std::string Suppressions::addSuppressionLine(const std::string &line)
suppression.fileName = Path::simplifyPath(suppression.fileName);
return addSuppression(suppression);
return addSuppression(std::move(suppression));
}
std::string Suppressions::addSuppression(const Suppressions::Suppression &suppression)
std::string Suppressions::addSuppression(Suppressions::Suppression suppression)
{
// Check if suppression is already in list
auto foundSuppression = std::find_if(mSuppressions.begin(), mSuppressions.end(),
@ -253,15 +253,15 @@ std::string Suppressions::addSuppression(const Suppressions::Suppression &suppre
if (!isValidGlobPattern(suppression.fileName))
return "Failed to add suppression. Invalid glob pattern '" + suppression.fileName + "'.";
mSuppressions.push_back(suppression);
mSuppressions.push_back(std::move(suppression));
return "";
}
std::string Suppressions::addSuppressions(const std::list<Suppression> &suppressions)
std::string Suppressions::addSuppressions(std::list<Suppression> suppressions)
{
for (const auto &newSuppression : suppressions) {
auto errmsg = addSuppression(newSuppression);
for (auto &newSuppression : suppressions) {
auto errmsg = addSuppression(std::move(newSuppression));
if (!errmsg.empty())
return errmsg;
}
@ -367,10 +367,12 @@ std::string Suppressions::Suppression::getText() const
return ret;
}
bool Suppressions::isSuppressed(const Suppressions::ErrorMessage &errmsg)
bool Suppressions::isSuppressed(const Suppressions::ErrorMessage &errmsg, bool global)
{
const bool unmatchedSuppression(errmsg.errorId == "unmatchedSuppression");
for (Suppression &s : mSuppressions) {
if (!global && !s.isLocal())
continue;
if (unmatchedSuppression && s.errorId != errmsg.errorId)
continue;
if (s.isMatch(errmsg))
@ -386,20 +388,6 @@ bool Suppressions::isSuppressed(const ::ErrorMessage &errmsg)
return isSuppressed(errmsg.toSuppressionsErrorMessage());
}
bool Suppressions::isSuppressedLocal(const Suppressions::ErrorMessage &errmsg)
{
const bool unmatchedSuppression(errmsg.errorId == "unmatchedSuppression");
for (Suppression &s : mSuppressions) {
if (!s.isLocal())
continue;
if (unmatchedSuppression && s.errorId != errmsg.errorId)
continue;
if (s.isMatch(errmsg))
return true;
}
return false;
}
void Suppressions::dump(std::ostream & out) const
{
out << " <suppressions>" << std::endl;

29
lib/suppressions.h
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@ -56,23 +56,8 @@ public:
struct CPPCHECKLIB Suppression {
Suppression() : lineNumber(NO_LINE), hash(0), thisAndNextLine(false), matched(false), checked(false) {}
Suppression(const Suppression &other) {
*this = other;
}
Suppression(std::string id, std::string file, int line=NO_LINE) : errorId(std::move(id)), fileName(std::move(file)), lineNumber(line), hash(0), thisAndNextLine(false), matched(false), checked(false) {}
Suppression & operator=(const Suppression &other) {
errorId = other.errorId;
fileName = other.fileName;
lineNumber = other.lineNumber;
symbolName = other.symbolName;
hash = other.hash;
thisAndNextLine = other.thisAndNextLine;
matched = other.matched;
checked = other.checked;
return *this;
}
bool operator<(const Suppression &other) const {
if (errorId != other.errorId)
return errorId < other.errorId;
@ -163,21 +148,22 @@ public:
* @param suppression suppression details
* @return error message. empty upon success
*/
std::string addSuppression(const Suppression &suppression);
std::string addSuppression(Suppression suppression);
/**
* @brief Combine list of suppressions into the current suppressions.
* @param suppressions list of suppression details
* @return error message. empty upon success
*/
std::string addSuppressions(const std::list<Suppression> &suppressions);
std::string addSuppressions(std::list<Suppression> suppressions);
/**
* @brief Returns true if this message should not be shown to the user.
* @param errmsg error message
* @param global use global suppressions
* @return true if this error is suppressed.
*/
bool isSuppressed(const ErrorMessage &errmsg);
bool isSuppressed(const ErrorMessage &errmsg, bool global = true);
/**
* @brief Returns true if this message should not be shown to the user.
@ -186,13 +172,6 @@ public:
*/
bool isSuppressed(const ::ErrorMessage &errmsg);
/**
* @brief Returns true if this message should not be shown to the user, only uses local suppressions.
* @param errmsg error message
* @return true if this error is suppressed.
*/
bool isSuppressedLocal(const ErrorMessage &errmsg);
/**
* @brief Create an xml dump of suppressions
* @param out stream to write XML to

46
test/testsuppressions.cpp
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@ -82,6 +82,7 @@ private:
TEST_CASE(unusedFunction);
TEST_CASE(suppressingSyntaxErrorAndExitCode);
TEST_CASE(suppressLocal);
}
void suppressionsBadId1() const {
@ -112,7 +113,8 @@ private:
void suppressionsDosFormat() const {
Suppressions suppressions;
std::istringstream s("abc\r\ndef\r\n");
std::istringstream s("abc\r\n"
"def\r\n");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("abc")));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("def")));
@ -120,7 +122,8 @@ private:
void suppressionsFileNameWithColon() const {
Suppressions suppressions;
std::istringstream s("errorid:c:\\foo.cpp\nerrorid:c:\\bar.cpp:12");
std::istringstream s("errorid:c:\\foo.cpp\n"
"errorid:c:\\bar.cpp:12");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "c:/foo.cpp", 1111)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "c:/bar.cpp", 10)));
@ -138,7 +141,9 @@ private:
// Check that globbing works
{
Suppressions suppressions;
std::istringstream s("errorid:x*.cpp\nerrorid:y?.cpp\nerrorid:test.c*");
std::istringstream s("errorid:x*.cpp\n"
"errorid:y?.cpp\n"
"errorid:test.c*");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp.cpp", 1)));
@ -152,7 +157,10 @@ private:
// Check that both a filename match and a glob match apply
{
Suppressions suppressions;
std::istringstream s("errorid:x*.cpp\nerrorid:xyz.cpp:1\nerrorid:a*.cpp:1\nerrorid:abc.cpp:2");
std::istringstream s("errorid:x*.cpp\n"
"errorid:xyz.cpp:1\n"
"errorid:a*.cpp:1\n"
"errorid:abc.cpp:2");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "xyz.cpp", 2)));
@ -526,12 +534,14 @@ private:
}
void suppressionsFileComment() const {
std::istringstream file1("# comment\nabc");
std::istringstream file1("# comment\n"
"abc");
Suppressions suppressions1;
suppressions1.parseFile(file1);
ASSERT_EQUALS(true, suppressions1.isSuppressed(errorMessage("abc", "test.cpp", 123)));
std::istringstream file2("// comment\nabc");
std::istringstream file2("// comment\n"
"abc");
Suppressions suppressions2;
suppressions2.parseFile(file2);
ASSERT_EQUALS(true, suppressions2.isSuppressed(errorMessage("abc", "test.cpp", 123)));
@ -700,9 +710,9 @@ private:
void inlinesuppress_unusedFunction() const { // #4210, #4946 - wrong report of "unmatchedSuppression" for "unusedFunction"
Suppressions suppressions;
auto suppression = Suppressions::Suppression("unusedFunction", "test.c", 3);
Suppressions::Suppression suppression("unusedFunction", "test.c", 3);
suppression.checked = true; // have to do this because fixes for #5704
suppressions.addSuppression(suppression);
suppressions.addSuppression(std::move(suppression));
ASSERT_EQUALS(true, !suppressions.getUnmatchedLocalSuppressions("test.c", true).empty());
ASSERT_EQUALS(false, !suppressions.getUnmatchedGlobalSuppressions(true).empty());
ASSERT_EQUALS(false, !suppressions.getUnmatchedLocalSuppressions("test.c", false).empty());
@ -795,9 +805,11 @@ private:
ASSERT_EQUALS(false, s.isSuppressed(errorMsg));
errorMsg.symbolNames = "array1\n";
ASSERT_EQUALS(true, s.isSuppressed(errorMsg));
errorMsg.symbolNames = "x\narray2\n";
errorMsg.symbolNames = "x\n"
"array2\n";
ASSERT_EQUALS(true, s.isSuppressed(errorMsg));
errorMsg.symbolNames = "array3\nx\n";
errorMsg.symbolNames = "array3\n"
"x\n";
ASSERT_EQUALS(true, s.isSuppressed(errorMsg));
}
@ -833,6 +845,20 @@ private:
ASSERT_EQUALS(2, checkSuppression(code3, "zerodiv:test.cpp:3")); // suppress 'errordiv' at line 3 of test.cpp
}
void suppressLocal() const {
Suppressions suppressions;
std::istringstream s("errorid:test.cpp\n"
"errorid2");
ASSERT_EQUALS("", suppressions.parseFile(s));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "test.cpp", 1)));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid", "test.cpp", 1), false));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "test2.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid", "test2.cpp", 1), false));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid2", "test.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid2", "test.cpp", 1), false));
ASSERT_EQUALS(true, suppressions.isSuppressed(errorMessage("errorid2", "test2.cpp", 1)));
ASSERT_EQUALS(false, suppressions.isSuppressed(errorMessage("errorid2", "test2.cpp", 1), false));
}
};
REGISTER_TEST(TestSuppressions)