Changes for using UTBotCPP on scalapack project. (#560)

* Skip .f and .f.o files.

* Check only Definition params.

* Use custom print for headers and wrappers code generation. Need this cause of unusual definition of some functions.

* Some code beauty changes.

* Some code beauty changes.

* Skip .f and .f.o files.

* Check only Definition params.

* Use custom print for headers and wrappers code generation. Need this cause of unusual definition of some functions.

* Some code beauty changes.

* Some code beauty changes.

* Add filter for old style function definition.

* fix clang-10 fail.

* fix clang-10 fail.

* Add exception

* Fix error in auto_installation_check.

* Add comment with old style code definition example.

* Move check in separate function.

Author: kichunya

.github/workflows/publish-utbot.yml

@@ -91,7 +91,7 @@ jobs:
 
   auto_installation_check:
     needs: publish
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3

server/src/Paths.cpp

@@ -51,6 +51,10 @@ namespace Paths {
         return m.first == base.end();
     }
 
+    bool skipFile(const fs::path &file) {
+        return file.string().substr(file.string().size() - 4) == ".f.o";
+    }
+
     fs::path longestCommonPrefixPath(const fs::path &a, const fs::path &b) {
         if (a == b) {
             return a;

server/src/Paths.h

@@ -101,6 +101,8 @@ namespace Paths {
 
     bool isSubPathOf(const fs::path &base, const fs::path &sub);
 
+    bool skipFile(const fs::path &file);
+
     fs::path longestCommonPrefixPath(const fs::path &a, const fs::path &b);
 
     static inline fs::path replaceExtension(const fs::path &path, const std::string &newExt) {

server/src/building/BuildDatabase.cpp

@@ -432,6 +432,9 @@ bool BuildDatabase::ObjectFileInfo::is32bits() const {
 }
 
 fs::path BuildDatabase::TargetInfo::getOutput() const {
+    if (commands.empty()){
+        throw CompilationDatabaseException("There are no targets");
+    }
     return commands[0].getOutput();
 }
 

server/src/building/ProjectBuildDatabse.cpp

@@ -6,6 +6,7 @@
 #include "loguru.h"
 #include "utils/StringUtils.h"
 #include "utils/CompilationUtils.h"
+#include "Paths.h"
 
 static std::string tryConvertToFullPath(const std::string &possibleFilePath, const fs::path &dirPath) {
     fs::path fullFilePath = Paths::getCCJsonFileFullPath(possibleFilePath, dirPath);
@@ -68,6 +69,10 @@ void ProjectBuildDatabase::initObjects(const nlohmann::json &compileCommandsJson
         fs::path jsonFile = compileCommand.at("file").get<std::string>();
         fs::path sourceFile = Paths::getCCJsonFileFullPath(jsonFile, directory);
 
+        if (!Paths::isSourceFile(sourceFile)){
+            continue;
+        }
+
         std::vector<std::string> jsonArguments;
         if (compileCommand.contains("command")) {
             std::string command = compileCommand.at("command");
@@ -125,7 +130,9 @@ void ProjectBuildDatabase::initObjects(const nlohmann::json &compileCommandsJson
             objectFileInfos[outputFile] = objectInfo;
         }
         const fs::path &sourcePath = objectInfo->getSourcePath();
+
         sourceFileInfos[sourcePath].emplace_back(objectInfo);
+
     }
     for (auto &[sourceFile, objectInfos]: sourceFileInfos) {
         std::sort(objectInfos.begin(), objectInfos.end(), BuildDatabase::ObjectFileInfo::conflictPriorityMore);
@@ -164,6 +171,9 @@ void ProjectBuildDatabase::initInfo(const nlohmann::json &linkCommandsJson) {
         for (nlohmann::json const &jsonFile: linkCommand.at("files")) {
             auto filename = jsonFile.get<std::string>();
             fs::path currentFile = Paths::getCCJsonFileFullPath(filename, command.getDirectory());
+            if (Paths::skipFile(currentFile)){
+                continue;
+            }
             targetInfo->addFile(currentFile);
             if (Paths::isObjectFile(currentFile)) {
                 if (!CollectionUtils::containsKey(objectFileInfos, currentFile)) {

server/src/clang-utils/SourceToHeaderMatchCallback.cpp

@@ -202,6 +202,12 @@ void SourceToHeaderMatchCallback::generateInternal(const FunctionDecl *decl) con
 
     std::string curDecl = getRenamedDeclarationAsString(decl, policy, decoratedName);
     std::string wrapperDecl = getRenamedDeclarationAsString(decl, policy, wrapperName);
+
+    if (IsOldStyleDefinition(curDecl)){
+        curDecl = getOldStyleDeclarationAsString(decl, decoratedName);
+        wrapperDecl = getOldStyleDeclarationAsString(decl, wrapperName);
+    }
+
     *internalStream << "extern \"C\" " << wrapperDecl << ";\n";
     *internalStream << "static " << curDecl << " {\n";
     printReturn(decl, wrapperName, internalStream);
@@ -253,6 +259,9 @@ void SourceToHeaderMatchCallback::generateWrapper(const FunctionDecl *decl) cons
     std::string name = decl->getNameAsString();
     std::string wrapperName = PrinterUtils::wrapperName(name, projectContext, sourceFilePath);
     std::string wrapperDecl = getRenamedDeclarationAsString(decl, policy, wrapperName);
+    if (IsOldStyleDefinition(wrapperDecl)){
+        wrapperDecl = getOldStyleDeclarationAsString(decl, wrapperName);
+    }
 
     *wrapperStream << wrapperDecl << " {\n";
     printReturn(decl, name, wrapperStream);
@@ -362,3 +371,39 @@ void SourceToHeaderMatchCallback::renameDecl(const NamedDecl *decl, const std::s
     DeclarationName wrapperDeclarationName{ &info };
     const_cast<NamedDecl *>(decl)->setDeclName(wrapperDeclarationName);
 }
+
+std::string SourceToHeaderMatchCallback::getOldStyleDeclarationAsString(const FunctionDecl *decl, std::string const &name) const{
+    std::string result;
+    llvm::raw_string_ostream resultStream{ result };
+    std::string funcReturnType = decl->getFunctionType()->getReturnType().getAsString();
+    std::vector<std::string> parameters = CollectionUtils::transformTo<std::vector<std::string>>(
+        decl->parameters(), [](ParmVarDecl *param) { return param->getNameAsString(); });
+
+    std::vector<std::string> param_types = CollectionUtils::transformTo<std::vector<std::string>>(
+        decl->parameters(), [](ParmVarDecl *param) { return param->getType().getAsString(); });
+    resultStream << funcReturnType << ' ' << name << '(';
+
+    for (int i = 0; i < parameters.size(); i++){
+        if (i != 0){
+            resultStream << ", ";
+        }
+        resultStream << param_types[i] << ' ' << parameters[i];
+    }
+    resultStream << ")";
+    resultStream.flush();
+    return result;
+}
+
+/*Example of old style definition
+int sum(a, b)
+int a;
+int b;
+{
+    return a + b;
+}
+*/
+bool SourceToHeaderMatchCallback::IsOldStyleDefinition(std::string const &definition) const{
+    std::regex normStyle ("\\([a-zA-Z0-9*&_()\\[\\]]+ [a-zA-Z0-9*&_()\\[\\]]+[,) ]");
+    bool res = std::regex_search(definition, normStyle);
+    return !res;
+}

server/src/clang-utils/SourceToHeaderMatchCallback.h

@@ -87,6 +87,10 @@ class SourceToHeaderMatchCallback : public clang::ast_matchers::MatchFinder::Mat
     void renameDecl(const clang::NamedDecl *decl, const std::string &name) const;
 
     std::string decorate(std::string_view name) const;
+
+    std::string getOldStyleDeclarationAsString(const clang::FunctionDecl *decl, std::string const &name) const;
+
+    bool IsOldStyleDefinition(std::string const &definition) const;
 };
 
 

server/src/fetchers/FunctionDeclsMatchCallback.cpp

@@ -90,9 +90,7 @@ void FunctionDeclsMatchCallback::run(const MatchFinder::MatchResult &Result) {
         }
 
         const auto paramsFromDefinition = FS->parameters();
-        const auto paramsFromDeclaration = FSFromHeader->parameters();
-        for (size_t i = 0; i < paramsFromDeclaration.size(); ++i) {
-            const auto &declParam = paramsFromDeclaration[i];
+        for (size_t i = 0; i < paramsFromDefinition.size(); ++i) {
             const auto &defParam = paramsFromDefinition[i];
             std::string name = NameDecorator::decorate(defParam->getNameAsString());
             std::string mangledName = PrinterUtils::getParamMangledName(name, methodName);
@@ -102,9 +100,9 @@ void FunctionDeclsMatchCallback::run(const MatchFinder::MatchResult &Result) {
             if (name == methodDescription.name) {
                 name = mangledName;
             }
-            auto paramType = ParamsHandler::getType(defParam->getType(), declParam->getType(), sourceManager);
-            addFunctionPointer(methodDescription.functionPointers, declParam->getFunctionType(),
-                               declParam->getType(), name, sourceManager, paramType);
+            auto paramType = ParamsHandler::getType(defParam->getType(), defParam->getType(), sourceManager);
+            addFunctionPointer(methodDescription.functionPointers, defParam->getFunctionType(),
+                               defParam->getType(), name, sourceManager, paramType);
             auto alignment = AlignmentFetcher::fetch(defParam);
             bool hasIncompleteType = ClangUtils::isIncomplete(defParam->getType());
             methodDescription.params.emplace_back(paramType, name, alignment, hasIncompleteType);