data: Extended CxxParser to detect elements
Detects most elements in the code, currently classes, structs, global variables, fields, functions, methods, namespaces and enums. The structs ParseLocation and ParseVariable are helper objects to transmit information to the ParserClient. Currently the parsed information only gets logged in the Storage. review id = 15 fortune cookie message = In dreams and in life, nothing is impossible.
This commit is contained in:
Eberhard Graether
@@ -1,5 +1,8 @@
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#include "data/parser/cxx/ASTVisitor.h"
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#include "data/parser/ParseLocation.h"
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#include "data/parser/ParseVariable.h"
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ASTVisitor::ASTVisitor(clang::ASTContext* context, std::shared_ptr<ParserClient> client)
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: m_context(context)
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, m_client(client)
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@@ -10,21 +13,250 @@ ASTVisitor::~ASTVisitor()
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{
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}
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bool ASTVisitor::VisitCXXRecordDecl(clang::CXXRecordDecl *declaration)
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bool ASTVisitor::VisitCXXRecordDecl(clang::CXXRecordDecl* declaration)
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{
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clang::FullSourceLoc location = m_context->getFullLoc(declaration->getLocStart());
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const clang::SourceLocation& location = declaration->getLocStart();
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if (location.isValid() && m_context->getSourceManager().isWrittenInMainFile(location))
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if (isValidLocation(location))
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{
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ParseObject parseObject(
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declaration->getQualifiedNameAsString(),
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m_context->getSourceManager().getFilename(location),
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location.getSpellingLineNumber(),
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location.getSpellingColumnNumber()
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);
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m_client->addClass(parseObject);
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if (declaration->isClass())
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{
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m_client->onClassParsed(
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getParseLocation(location),
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declaration->getQualifiedNameAsString(),
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convertAccessType(declaration->getAccess())
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);
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}
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else if (declaration->isStruct())
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{
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m_client->onStructParsed(
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getParseLocation(location),
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declaration->getQualifiedNameAsString(),
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convertAccessType(declaration->getAccess())
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);
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}
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}
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return true;
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}
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bool ASTVisitor::VisitVarDecl(clang::VarDecl* declaration)
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{
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// Abort on local variables and parameters.
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if (declaration->isFunctionOrMethodVarDecl() || clang::isa<clang::ParmVarDecl>(declaration))
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{
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return true;
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}
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const clang::SourceLocation& location = declaration->getLocStart();
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if (isValidLocation(location))
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{
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clang::AccessSpecifier access = declaration->getAccess();
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if (access == clang::AS_none)
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{
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m_client->onGlobalVariableParsed(getParseLocation(location), getParseVariable(declaration));
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}
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else
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{
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m_client->onFieldParsed(
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getParseLocation(location),
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getParseVariable(declaration),
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convertAccessType(declaration->getAccess())
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);
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}
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}
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return true;
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}
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bool ASTVisitor::VisitFieldDecl(clang::FieldDecl* declaration)
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{
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const clang::SourceLocation& location = declaration->getLocStart();
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if (isValidLocation(location))
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{
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m_client->onFieldParsed(
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getParseLocation(location),
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getParseVariable(declaration),
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convertAccessType(declaration->getAccess())
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);
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}
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return true;
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}
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bool ASTVisitor::VisitFunctionDecl(clang::FunctionDecl* declaration)
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{
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// Abort for CXXMethodDecls to avoid duplicate call.
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if (clang::isa<clang::CXXMethodDecl>(declaration))
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{
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return true;
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}
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const clang::SourceLocation& location = declaration->getLocStart();
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if (isValidLocation(location))
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{
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m_client->onFunctionParsed(
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getParseLocation(location),
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declaration->getQualifiedNameAsString(),
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getTypeName(declaration->getReturnType()),
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getParameters(declaration)
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);
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}
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return true;
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}
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bool ASTVisitor::VisitCXXMethodDecl(clang::CXXMethodDecl* declaration)
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{
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const clang::SourceLocation& location = declaration->getLocStart();
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if (isValidLocation(location))
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{
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ParserClient::AbstractionType abstraction = ParserClient::ABSTRACTION_NONE;
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if (declaration->isPure())
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{
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abstraction = ParserClient::ABSTRACTION_PURE_VIRTUAL;
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}
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else if (declaration->isVirtual())
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{
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abstraction = ParserClient::ABSTRACTION_VIRTUAL;
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}
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m_client->onMethodParsed(
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getParseLocation(location),
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declaration->getQualifiedNameAsString(),
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getTypeName(declaration->getReturnType()),
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getParameters(declaration),
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convertAccessType(declaration->getAccess()),
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abstraction,
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declaration->isConst(),
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declaration->isStatic()
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);
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}
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return true;
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}
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bool ASTVisitor::VisitNamespaceDecl(clang::NamespaceDecl* declaration)
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{
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const clang::SourceLocation& location = declaration->getLocStart();
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if (isValidLocation(location))
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{
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m_client->onNamespaceParsed(getParseLocation(location), declaration->getQualifiedNameAsString());
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}
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return true;
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}
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bool ASTVisitor::VisitEnumDecl(clang::EnumDecl* declaration)
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{
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const clang::SourceLocation& location = declaration->getLocStart();
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if (isValidLocation(location))
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{
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m_client->onEnumParsed(
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getParseLocation(location),
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declaration->getQualifiedNameAsString(),
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convertAccessType(declaration->getAccess())
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);
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}
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return true;
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}
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bool ASTVisitor::VisitEnumConstantDecl(clang::EnumConstantDecl* declaration)
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{
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const clang::SourceLocation& location = declaration->getLocStart();
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if (isValidLocation(location))
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{
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m_client->onEnumFieldParsed(getParseLocation(location), declaration->getQualifiedNameAsString());
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}
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return true;
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}
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bool ASTVisitor::isValidLocation(const clang::SourceLocation& location) const
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{
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return location.isValid() && m_context->getSourceManager().isWrittenInMainFile(location);
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}
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ParseLocation ASTVisitor::getParseLocation(const clang::SourceLocation& location) const
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{
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clang::FullSourceLoc fullLocation = m_context->getFullLoc(location);
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return ParseLocation(
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m_context->getSourceManager().getFilename(location),
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fullLocation.getSpellingLineNumber(),
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fullLocation.getSpellingColumnNumber()
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);
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}
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ParseVariable ASTVisitor::getParseVariable(clang::ValueDecl* declaration) const
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{
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clang::QualType type = declaration->getType();
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bool isStatic = false;
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if (clang::isa<clang::VarDecl>(declaration))
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{
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isStatic = static_cast<clang::VarDecl*>(declaration)->isStaticDataMember();
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}
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return ParseVariable(
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getTypeName(type),
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declaration->getQualifiedNameAsString(),
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type.isConstQualified(),
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isStatic
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);
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}
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std::vector<ParseVariable> ASTVisitor::getParameters(clang::FunctionDecl* declaration) const
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{
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std::vector<ParseVariable> parameters;
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for (unsigned i = 0; i < declaration->getNumParams(); i++)
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{
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parameters.push_back(getParseVariable(declaration->getParamDecl(i)));
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}
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return parameters;
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}
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std::string ASTVisitor::getTypeName(const clang::QualType& type) const
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{
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std::string typeName = type.getUnqualifiedType().getAsString();
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// Remove keywords from type.
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std::string keyword;
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size_t pos = typeName.find_first_of(' ');
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if (pos != std::string::npos)
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{
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keyword = typeName.substr(0, pos);
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}
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if (keyword == "class" || keyword == "struct" || keyword == "enum")
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{
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typeName = typeName.substr(pos + 1);
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}
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return typeName;
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}
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ParserClient::AccessType ASTVisitor::convertAccessType(clang::AccessSpecifier access) const
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{
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switch (access)
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{
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case clang::AS_public:
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return ParserClient::ACCESS_PUBLIC;
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case clang::AS_protected:
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return ParserClient::ACCESS_PROTECTED;
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case clang::AS_private:
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return ParserClient::ACCESS_PRIVATE;
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case clang::AS_none:
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return ParserClient::ACCESS_NONE;
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}
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}
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