Fix 12463: dumpfile: what library are used (#6569)

Author: swasti16

lib/cppcheck.cpp

@@ -413,6 +413,14 @@ static bool reportClangErrors(std::istream &is, const std::function<void(const E
     return false;
 }
 
+std::string CppCheck::getLibraryDumpData() const {
+    std::string out;
+    for (const std::string &s : mSettings.libraries) {
+        out += "  <library lib=\"" + s + "\"/>\n";
+    }
+    return out;
+}
+
 unsigned int CppCheck::checkClang(const FileWithDetails &file)
 {
     if (mSettings.checks.isEnabled(Checks::unusedFunction) && !mUnusedFunctionsCheck)
@@ -520,6 +528,7 @@ unsigned int CppCheck::checkClang(const FileWithDetails &file)
             fdump << "    <c version=\"" << mSettings.standards.getC() << "\"/>\n";
             fdump << "    <cpp version=\"" << mSettings.standards.getCPP() << "\"/>\n";
             fdump << "  </standards>\n";
+            fdump << getLibraryDumpData();
             tokenizer.dump(fdump);
             fdump << "</dump>\n";
             fdump << "</dumps>\n";
@@ -902,6 +911,7 @@ unsigned int CppCheck::checkFile(const FileWithDetails& file, const std::string
                     fdump << "    <c version=\"" << mSettings.standards.getC() << "\"/>" << std::endl;
                     fdump << "    <cpp version=\"" << mSettings.standards.getCPP() << "\"/>" << std::endl;
                     fdump << "  </standards>" << std::endl;
+                    fdump << getLibraryDumpData();
                     preprocessor.dump(fdump);
                     tokenizer.dump(fdump);
                     fdump << "</dump>" << std::endl;

lib/cppcheck.h

@@ -162,6 +162,8 @@ class CPPCHECKLIB CppCheck : ErrorLogger {
      */
     std::string getDumpFileContentsRawTokens(const std::vector<std::string>& files, const simplecpp::TokenList& tokens1) const;
 
+    std::string getLibraryDumpData() const;
+
 private:
 #ifdef HAVE_RULES
     /** Are there "simple" rules */

test/testcppcheck.cpp

@@ -59,6 +59,7 @@ class TestCppcheck : public TestFixture {
         TEST_CASE(unique_errors);
         TEST_CASE(isPremiumCodingStandardId);
         TEST_CASE(getDumpFileContentsRawTokens);
+        TEST_CASE(getDumpFileContentsLibrary);
     }
 
     void getErrorMessages() const {
@@ -222,6 +223,18 @@ class TestCppcheck : public TestFixture {
         ASSERT_EQUALS(expected, cppcheck.getDumpFileContentsRawTokens(files, tokens1));
     }
 
+    void getDumpFileContentsLibrary() const {
+        ErrorLogger2 errorLogger;
+        CppCheck cppcheck(errorLogger, false, {});
+        cppcheck.settings().libraries.emplace_back("std.cfg");
+        std::vector<std::string> files{ "/some/path/test.cpp" };
+        const std::string expected1 = "  <library lib=\"std.cfg\"/>\n";
+        ASSERT_EQUALS(expected1, cppcheck.getLibraryDumpData());
+        cppcheck.settings().libraries.emplace_back("posix.cfg");
+        const std::string expected2 = "  <library lib=\"std.cfg\"/>\n  <library lib=\"posix.cfg\"/>\n";
+        ASSERT_EQUALS(expected2, cppcheck.getLibraryDumpData());
+    }
+
     // TODO: test suppressions
     // TODO: test all with FS
 };