ui/logic/data: show parse errors in CodeView

This change saves the errors while parsing in the Storage and displays them in the CodeView. The error messages can be
read in the tooltip on hovering. The error count is visible in the status bar.

bin/app/data/src/test/main.cpp

@@ -14,6 +14,9 @@ int main()
 	int a = sum(1, 2);
 	int b = diff(a, 3);
 	int c = a * b;
+
+	int x = y;
+
 	return 0;
 }
 

src/app/qt/element/QtCodeFile.cpp

@@ -3,13 +3,14 @@
 #include <QLabel>
 #include <QVBoxLayout>
 
+#include "qt/element/QtCodeFileList.h"
 #include "qt/element/QtCodeSnippet.h"
 #include "utility/FileSystem.h"
 
-QtCodeFile::QtCodeFile(const std::string& filePath, QWidget *parent)
+QtCodeFile::QtCodeFile(const std::string& filePath, QtCodeFileList* parent)
 	: QWidget(parent)
+	, m_parent(parent)
 	, m_filePath(filePath)
-	, m_showMaximizeButton(true)
 {
 	setObjectName("code_file");
 
@@ -31,21 +32,35 @@ QtCodeFile::~QtCodeFile()
 {
 }
 
+const std::string& QtCodeFile::getFilePath() const
+{
+	return m_filePath;
+}
+
 std::string QtCodeFile::getFileName() const
 {
 	return FileSystem::fileName(m_filePath);
 }
 
+const std::vector<Id>& QtCodeFile::getActiveTokenIds() const
+{
+	return m_parent->getActiveTokenIds();
+}
+
+const std::vector<std::string>& QtCodeFile::getErrorMessages() const
+{
+	return m_parent->getErrorMessages();
+}
+
 void QtCodeFile::addCodeSnippet(
 	uint startLineNumber,
 	const std::string& code,
-	const TokenLocationFile& locationFile,
+	const TokenLocationFile& locationFile
-	const std::vector<Id>& activeTokenIds
 ){
 	std::shared_ptr<QtCodeSnippet> snippet(
-		new QtCodeSnippet(startLineNumber, code, locationFile, activeTokenIds, this));
+		new QtCodeSnippet(startLineNumber, code, locationFile, this));
 
-	if (m_showMaximizeButton)
+	if (m_parent->getShowMaximizeButton())
 	{
 		snippet->addMaximizeButton();
 	}
@@ -65,15 +80,10 @@ void QtCodeFile::addCodeSnippet(
 	}
 }
 
-void QtCodeFile::setActiveTokenIds(const std::vector<Id>& activeTokenIds)
+void QtCodeFile::update()
 {
 	for (std::shared_ptr<QtCodeSnippet> snippet : m_snippets)
 	{
-		snippet->setActiveTokenIds(activeTokenIds);
+		snippet->update();
 	}
 }
-
-void QtCodeFile::setShowMaximizeButton(bool show)
-{
-	m_showMaximizeButton = show;
-}

src/app/qt/element/QtCodeFile.h

@@ -9,31 +9,34 @@
 
 #include "utility/types.h"
 
+class QtCodeFileList;
 class QtCodeSnippet;
 class TokenLocationFile;
 
 class QtCodeFile : public QWidget
 {
 public:
-	QtCodeFile(const std::string& filePath, QWidget *parent = 0);
+	QtCodeFile(const std::string& filePath, QtCodeFileList* parent);
 	virtual ~QtCodeFile();
 
+	const std::string& getFilePath() const;
 	std::string getFileName() const;
+	const std::vector<Id>& getActiveTokenIds() const;
+	const std::vector<std::string>& getErrorMessages() const;
 
 	void addCodeSnippet(
 		uint startLineNumber,
 		const std::string& code,
-		const TokenLocationFile& locationFile,
+		const TokenLocationFile& locationFile
-		const std::vector<Id>& activeTokenIds
 	);
 
-	void setActiveTokenIds(const std::vector<Id>& activeTokenIds);
+	void update();
-	void setShowMaximizeButton(bool show);
 
 private:
-	std::vector<std::shared_ptr<QtCodeSnippet> > m_snippets;
+	QtCodeFileList* m_parent;
+
+	std::vector<std::shared_ptr<QtCodeSnippet>> m_snippets;
 	const std::string m_filePath;
-	bool m_showMaximizeButton;
 };
 
 #endif // QT_CODE_FILE_H

src/app/qt/element/QtCodeFileList.cpp

@@ -36,8 +36,7 @@ QSize QtCodeFileList::sizeHint() const
 void QtCodeFileList::addCodeSnippet(
 	uint startLineNumber,
 	const std::string& code,
-	const TokenLocationFile& locationFile,
+	const TokenLocationFile& locationFile
-	const std::vector<Id>& activeTokenIds
 ){
 	std::string fileName = FileSystem::fileName(locationFile.getFilePath());
 	QtCodeFile* file = nullptr;
@@ -58,11 +57,9 @@ void QtCodeFileList::addCodeSnippet(
 
 		file = filePtr.get();
 		m_frame->layout()->addWidget(file);
-
-		file->setShowMaximizeButton(m_showMaximizeButton);
 	}
 
-	file->addCodeSnippet(startLineNumber, code, locationFile, activeTokenIds);
+	file->addCodeSnippet(startLineNumber, code, locationFile);
 }
 
 void QtCodeFileList::clearCodeSnippets()
@@ -70,15 +67,43 @@ void QtCodeFileList::clearCodeSnippets()
 	m_files.clear();
 }
 
+const std::vector<Id>& QtCodeFileList::getActiveTokenIds() const
+{
+	return m_activeTokenIds;
+}
+
 void QtCodeFileList::setActiveTokenIds(const std::vector<Id>& activeTokenIds)
 {
-	for (std::shared_ptr<QtCodeFile> file: m_files)
+	m_activeTokenIds = activeTokenIds;
-	{
+	updateFiles();
-		file->setActiveTokenIds(activeTokenIds);
+}
-	}
+
+const std::vector<std::string>& QtCodeFileList::getErrorMessages() const
+{
+	return m_errorMessages;
+}
+
+void QtCodeFileList::setErrorMessages(const std::vector<std::string>& errorMessages)
+{
+	m_errorMessages = errorMessages;
+	updateFiles();
+}
+
+bool QtCodeFileList::getShowMaximizeButton() const
+{
+	return m_showMaximizeButton;
 }
 
 void QtCodeFileList::setShowMaximizeButton(bool show)
 {
 	m_showMaximizeButton = show;
+	updateFiles();
+}
+
+void QtCodeFileList::updateFiles()
+{
+	for (std::shared_ptr<QtCodeFile> file: m_files)
+	{
+		file->update();
+	}
 }

src/app/qt/element/QtCodeFileList.h

@@ -25,19 +25,28 @@ public:
 	void addCodeSnippet(
 		uint startLineNumber,
 		const std::string& code,
-		const TokenLocationFile& locationFile,
+		const TokenLocationFile& locationFile
-		const std::vector<Id>& activeTokenIds
 	);
 
 	void clearCodeSnippets();
 
+	const std::vector<Id>& getActiveTokenIds() const;
 	void setActiveTokenIds(const std::vector<Id>& activeTokenIds);
+
+	const std::vector<std::string>& getErrorMessages() const;
+	void setErrorMessages(const std::vector<std::string>& errorMessages);
+
+	bool getShowMaximizeButton() const;
 	void setShowMaximizeButton(bool show);
 
 private:
-	std::shared_ptr<QFrame> m_frame;
+	void updateFiles();
-	std::vector<std::shared_ptr<QtCodeFile> > m_files;
 
+	std::shared_ptr<QFrame> m_frame;
+	std::vector<std::shared_ptr<QtCodeFile>> m_files;
+
+	std::vector<Id> m_activeTokenIds;
+	std::vector<std::string> m_errorMessages;
 	bool m_showMaximizeButton;
 };
 

src/app/qt/element/QtCodeSnippet.cpp

@@ -4,10 +4,12 @@
 #include <QHBoxLayout>
 #include <QPainter>
 #include <QPushButton>
+#include <QToolTip>
 
 #include "ApplicationSettings.h"
 #include "data/location/TokenLocation.h"
 #include "data/location/TokenLocationFile.h"
+#include "qt/element/QtCodeFile.h"
 #include "qt/utility/QtHighlighter.h"
 #include "utility/messaging/type/MessageActivateTokenLocation.h"
 #include "utility/messaging/type/MessageShowFile.h"
@@ -38,14 +40,13 @@ QtCodeSnippet::QtCodeSnippet(
 	uint startLineNumber,
 	const std::string& code,
 	const TokenLocationFile& locationFile,
-	const std::vector<Id>& activeTokenIds,
+	QtCodeFile* parent
-	QWidget *parent
 )
 	: QPlainTextEdit(parent)
+	, m_parent(parent)
 	, m_maximizeButton(nullptr)
 	, m_startLineNumber(startLineNumber)
-	, m_filePath(locationFile.getFilePath())
+	, m_hoveredAnnotation(nullptr)
-	, m_activeTokenIds(activeTokenIds)
 	, m_digits(0)
 {
 	setObjectName("code_snippet");
@@ -73,8 +74,9 @@ QtCodeSnippet::QtCodeSnippet(
 
 	connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
 	connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
-	connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(clickedTokenLocation()));
 	connect(this, SIGNAL(selectionChanged()), this, SLOT(clearSelection()));
+
+	this->setMouseTracking(true);
 }
 
 QtCodeSnippet::~QtCodeSnippet()
@@ -154,9 +156,8 @@ void QtCodeSnippet::updateLineNumberAreaWidthForDigits(int digits)
 	updateLineNumberAreaWidth(0);
 }
 
-void QtCodeSnippet::setActiveTokenIds(const std::vector<Id>& activeTokenIds)
+void QtCodeSnippet::update()
 {
-	m_activeTokenIds = activeTokenIds;
 	annotateText();
 }
 
@@ -192,14 +193,52 @@ void QtCodeSnippet::leaveEvent(QEvent* event)
 	}
 }
 
+void QtCodeSnippet::mouseReleaseEvent(QMouseEvent* event)
+{
+	if (event->button() == Qt::LeftButton)
+	{
+		QTextCursor cursor = this->cursorForPosition(event->pos());
+		const Annotation* annotation = findAnnotationForPosition(cursor.position());
+
+		if (annotation)
+		{
+			MessageActivateTokenLocation(annotation->locationId).dispatch();
+		}
+	}
+}
+
 void QtCodeSnippet::mouseDoubleClickEvent(QMouseEvent* event)
 {
-	if (m_maximizeButton)
+	if (event->button() == Qt::LeftButton && m_maximizeButton)
 	{
 		clickedMaximizeButton();
 	}
 }
 
+void QtCodeSnippet::mouseMoveEvent(QMouseEvent* event)
+{
+	QTextCursor cursor = this->cursorForPosition(event->pos());
+	const Annotation* annotation = findAnnotationForPosition(cursor.position());
+
+	if (annotation != nullptr ? annotation != m_hoveredAnnotation && !annotation->isScope : m_hoveredAnnotation != nullptr)
+	{
+		m_hoveredAnnotation = annotation;
+
+		const std::vector<std::string>& errorMessages = m_parent->getErrorMessages();
+
+		if (annotation && errorMessages.size() > annotation->tokenId)
+		{
+			QToolTip::showText(event->globalPos(), QString::fromStdString(m_parent->getErrorMessages()[annotation->tokenId]));
+		}
+		else
+		{
+			QToolTip::hideText();
+		}
+
+		annotateText();
+	}
+}
+
 void QtCodeSnippet::updateLineNumberAreaWidth(int /* newBlockCount */)
 {
 	setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
@@ -222,34 +261,9 @@ void QtCodeSnippet::updateLineNumberArea(const QRect &rect, int dy)
 	}
 }
 
-void QtCodeSnippet::clickedTokenLocation()
-{
-	int clickPosition = textCursor().position();
-	int diff = endTextEditPosition() + 1;
-	Id locationId = 0;
-
-	for (Annotation annotation : m_annotations)
-	{
-		if (clickPosition >= annotation.start && clickPosition <= annotation.end)
-		{
-			int d = annotation.end - annotation.start;
-			if (d < diff)
-			{
-				diff = d;
-				locationId = annotation.locationId;
-			}
-		}
-	}
-
-	if (locationId)
-	{
-		MessageActivateTokenLocation(locationId).dispatch();
-	}
-}
-
 void QtCodeSnippet::clickedMaximizeButton()
 {
-	MessageShowFile(m_filePath, m_startLineNumber, m_startLineNumber + document()->blockCount() - 1).dispatch();
+	MessageShowFile(m_parent->getFilePath(), m_startLineNumber, m_startLineNumber + blockCount() - 1).dispatch();
 }
 
 void QtCodeSnippet::clearSelection()
@@ -259,12 +273,33 @@ void QtCodeSnippet::clearSelection()
 	setTextCursor(cursor);
 }
 
+const QtCodeSnippet::Annotation* QtCodeSnippet::findAnnotationForPosition(int pos) const
+{
+	const Annotation* annotationPtr = nullptr;
+	int diff = endTextEditPosition() + 1;
+
+	for (const Annotation& annotation : m_annotations)
+	{
+		if (pos >= annotation.start && pos <= annotation.end)
+		{
+			int d = annotation.end - annotation.start;
+			if (d < diff)
+			{
+				diff = d;
+				annotationPtr = &annotation;
+			}
+		}
+	}
+
+	return annotationPtr;
+}
+
 void QtCodeSnippet::createAnnotations(const TokenLocationFile& locationFile)
 {
 	locationFile.forEachTokenLocation(
 		[&](TokenLocation* location)
 		{
-			if (location->isEndTokenLocation() && location->getStartTokenLocation())
+			if (!locationBelongsToSnippet(location))
 			{
 				return;
 			}
@@ -301,14 +336,27 @@ void QtCodeSnippet::createAnnotations(const TokenLocationFile& locationFile)
 void QtCodeSnippet::annotateText()
 {
 	Colori color;
-	const std::vector<Id>& ids = m_activeTokenIds;
+	const std::vector<Id>& ids = m_parent->getActiveTokenIds();
+	const std::vector<std::string>& errorMessages = m_parent->getErrorMessages();
 	QList<QTextEdit::ExtraSelection> extraSelections;
 
 	for (const Annotation& annotation: m_annotations)
 	{
 		bool isActive = std::find(ids.begin(), ids.end(), annotation.tokenId) != ids.end();
 
-		if (isActive)
+		if (&annotation == m_hoveredAnnotation && errorMessages.size())
+		{
+			color = Colori(255, 0, 0, 128);
+		}
+		else if (&annotation == m_hoveredAnnotation)
+		{
+			color = ApplicationSettings::getInstance()->getCodeActiveLinkColor();
+		}
+		else if (errorMessages.size())
+		{
+			color = Colori(255, 0, 0, 255);
+		}
+		else if (isActive)
 		{
 			color = ApplicationSettings::getInstance()->getCodeActiveLinkColor();
 		}
@@ -335,6 +383,43 @@ void QtCodeSnippet::annotateText()
 	setExtraSelections(extraSelections);
 }
 
+bool QtCodeSnippet::locationBelongsToSnippet(TokenLocation* location) const
+{
+	uint lineNumber = location->getLineNumber();
+
+	if (location->isEndTokenLocation())
+	{
+		if (location->getStartTokenLocation() ||
+			lineNumber < m_startLineNumber || lineNumber >= m_startLineNumber + blockCount())
+		{
+			return false;
+		}
+		else
+		{
+			return true;
+		}
+	}
+
+	if (lineNumber >= m_startLineNumber + blockCount())
+	{
+		return false;
+	}
+
+	if (lineNumber >= m_startLineNumber)
+	{
+		return true;
+	}
+
+	TokenLocation* endLocation = location->getEndTokenLocation();
+
+	if (endLocation && endLocation->getLineNumber() < m_startLineNumber)
+	{
+		return false;
+	}
+
+	return true;
+}
+
 int QtCodeSnippet::toTextEditPosition(int lineNumber, int columnNumber) const
 {
 	lineNumber -= m_startLineNumber - 1;

src/app/qt/element/QtCodeSnippet.h

@@ -11,8 +11,10 @@ class QPaintEvent;
 class QPushButton;
 class QResizeEvent;
 class QSize;
+class QtCodeFile;
 class QtHighlighter;
 class QWidget;
+class TokenLocation;
 class TokenLocationFile;
 
 class QtCodeSnippet: public QPlainTextEdit
@@ -39,8 +41,7 @@ public:
 		uint startLineNumber,
 		const std::string& code,
 		const TokenLocationFile& locationFile,
-		const std::vector<Id>& activeTokenIds,
+		QtCodeFile* parent
-		QWidget *parent = 0
 	);
 	virtual ~QtCodeSnippet();
 
@@ -53,19 +54,20 @@ public:
 	int lineNumberAreaWidth() const;
 	void updateLineNumberAreaWidthForDigits(int digits);
 
-	void setActiveTokenIds(const std::vector<Id>& activeTokenIds);
+	void update();
 
 protected:
 	virtual void resizeEvent(QResizeEvent *event);
 	virtual void showEvent(QShowEvent* event);
 	virtual void enterEvent(QEvent* event);
 	virtual void leaveEvent(QEvent* event);
+	virtual void mouseReleaseEvent(QMouseEvent* event);
 	virtual void mouseDoubleClickEvent(QMouseEvent* event);
+	virtual void mouseMoveEvent(QMouseEvent* event);
 
 private slots:
 	void updateLineNumberAreaWidth(int newBlockCount);
 	void updateLineNumberArea(const QRect &, int);
-	void clickedTokenLocation();
 	void clickedMaximizeButton();
 	void clearSelection();
 
@@ -79,24 +81,28 @@ private:
 		bool isScope;
 	};
 
+	const Annotation* findAnnotationForPosition(int pos) const;
 	void createAnnotations(const TokenLocationFile& locationFile);
 	void annotateText();
 
+	bool locationBelongsToSnippet(TokenLocation* location) const;
+
 	int toTextEditPosition(int lineNumber, int columnNumber) const;
 	int startTextEditPosition() const;
 	int endTextEditPosition() const;
 
+	QtCodeFile* m_parent;
+
 	QWidget* m_lineNumberArea;
 	QtHighlighter* m_highlighter;
 
 	QPushButton* m_maximizeButton;
-	bool m_showMaximizeButton;
 
 	const uint m_startLineNumber;
-	const std::string m_filePath;
-	std::vector<Id> m_activeTokenIds;
 
 	std::vector<Annotation> m_annotations;
+	const Annotation* m_hoveredAnnotation;
+
 	int m_digits;
 };
 

src/app/qt/element/QtStatusBar.cpp

@@ -17,5 +17,10 @@ void QtStatusBar::setText(const std::string& text, bool isError)
 	{
 		m_text.setStyleSheet("QLabel { color: red }");
 	}
+	else
+	{
+		m_text.setStyleSheet("");
+	}
+
 	m_text.setText(text.c_str());
 }

src/app/qt/view/QtCodeView.cpp

@@ -10,7 +10,6 @@
 QtCodeView::QtCodeView(ViewLayout* viewLayout)
 	: CodeView(viewLayout)
 	, m_refreshViewFunctor(std::bind(&QtCodeView::doRefreshView, this))
-	, m_clearCodeSnippetsFunctor(std::bind(&QtCodeView::doClearCodeSnippets, this))
 	, m_showCodeSnippetsFunctor(std::bind(&QtCodeView::doShowCodeSnippets, this, std::placeholders::_1))
 	, m_showCodeFileFunctor(std::bind(&QtCodeView::doShowCodeFile, this, std::placeholders::_1))
 {
@@ -35,16 +34,16 @@ void QtCodeView::refreshView()
 	m_refreshViewFunctor();
 }
 
-void QtCodeView::clearCodeSnippets()
-{
-	m_clearCodeSnippetsFunctor();
-}
-
 void QtCodeView::setActiveTokenIds(const std::vector<Id>& activeTokenIds)
 {
 	m_activeTokenIds = activeTokenIds;
 }
 
+void QtCodeView::setErrorMessages(const std::vector<std::string>& errorMessages)
+{
+	m_errorMessages = errorMessages;
+}
+
 void QtCodeView::showCodeSnippets(const std::vector<CodeSnippetParams>& snippets)
 {
 	m_showCodeSnippetsFunctor(snippets);
@@ -66,24 +65,31 @@ void QtCodeView::doRefreshView()
 	}
 }
 
-void QtCodeView::doClearCodeSnippets()
-{
-	m_widget->clearCodeSnippets();
-}
-
 void QtCodeView::doShowCodeSnippets(const std::vector<CodeSnippetParams>& snippets)
 {
-	doClearCodeSnippets();
+	m_widget->clearCodeSnippets();
 
 	clearClosedWindows();
 	for (std::shared_ptr<QtCodeFileList> window: m_windows)
 	{
-		window->setActiveTokenIds(m_activeTokenIds);
+		if (m_errorMessages.size())
+		{
+			window->close();
+		}
+		else
+		{
+			window->setActiveTokenIds(m_activeTokenIds);
+			window->setErrorMessages(m_errorMessages);
+		}
 	}
 
+	m_widget->setActiveTokenIds(m_activeTokenIds);
+	m_widget->setErrorMessages(m_errorMessages);
+	m_widget->setShowMaximizeButton(m_errorMessages.size() == 0);
+
 	for (const CodeSnippetParams& params : snippets)
 	{
-		m_widget->addCodeSnippet(params.startLineNumber, params.code, params.locationFile, m_activeTokenIds);
+		m_widget->addCodeSnippet(params.startLineNumber, params.code, params.locationFile);
 	}
 }
 
@@ -93,7 +99,9 @@ void QtCodeView::doShowCodeFile(const CodeSnippetParams& params)
 	m_windows.push_back(ptr);
 
 	ptr->setShowMaximizeButton(false);
-	ptr->addCodeSnippet(1, params.code, params.locationFile, m_activeTokenIds);
+	ptr->setActiveTokenIds(m_activeTokenIds);
+	ptr->setErrorMessages(m_errorMessages);
+	ptr->addCodeSnippet(1, params.code, params.locationFile);
 
 	ptr->setWindowTitle(FileSystem::fileName(params.locationFile.getFilePath()).c_str());
 	ptr->show();

src/app/qt/view/QtCodeView.h

@@ -24,14 +24,14 @@ public:
 	virtual void refreshView();
 
 	// CodeView implementation
-	virtual void clearCodeSnippets();
 	virtual void setActiveTokenIds(const std::vector<Id>& activeTokenIds);
+	virtual void setErrorMessages(const std::vector<std::string>& errorMessages);
+
 	virtual void showCodeSnippets(const std::vector<CodeSnippetParams>& snippets);
 	virtual void showCodeFile(const CodeSnippetParams& params);
 
 private:
 	void doRefreshView();
-	void doClearCodeSnippets();
 	void doShowCodeSnippets(const std::vector<CodeSnippetParams>& snippets);
 	void doShowCodeFile(const CodeSnippetParams& params);
 
@@ -41,13 +41,14 @@ private:
 	void clearClosedWindows();
 
 	QtThreadedFunctor<> m_refreshViewFunctor;
-	QtThreadedFunctor<> m_clearCodeSnippetsFunctor;
 	QtThreadedFunctor<const std::vector<CodeSnippetParams>&> m_showCodeSnippetsFunctor;
 	QtThreadedFunctor<const CodeSnippetParams&> m_showCodeFileFunctor;
 
 	std::shared_ptr<QtCodeFileList> m_widget;
 	std::vector<std::shared_ptr<QtCodeFileList>> m_windows;
+
 	std::vector<Id> m_activeTokenIds;
+	std::vector<std::string> m_errorMessages;
 };
 
 # endif // QT_CODE_VIEW_H

src/lib/Application.cpp

@@ -47,8 +47,6 @@ void Application::loadProject(const std::string& projectSettingsFilePath)
 
 	m_project->loadProjectSettings(projectSettingsFilePath);
 	m_project->parseCode();
-
-	activateInitialNode();
 }
 
 void Application::loadSource(const std::string& sourceDirectoryPath)
@@ -58,16 +56,12 @@ void Application::loadSource(const std::string& sourceDirectoryPath)
 	m_project->clearProjectSettings();
 	m_project->setSourceDirectoryPath(sourceDirectoryPath);
 	m_project->parseCode();
-
-	activateInitialNode();
 }
 
 void Application::reloadProject()
 {
 	m_project->clearStorage();
 	m_project->parseCode();
-
-	activateInitialNode();
 }
 
 void Application::saveProject(const std::string& projectSettingsFilePath)
@@ -78,8 +72,13 @@ void Application::saveProject(const std::string& projectSettingsFilePath)
 	}
 }
 
-void Application::activateInitialNode() const
+void Application::handleMessage(MessageFinishedParsing* message)
 {
+	if (message->errorCount > 0)
+	{
+		return;
+	}
+
 	Id mainId = m_graphAccessProxy->getIdForNodeWithName("main");
 
 	if (!mainId)

src/lib/Application.h

@@ -6,6 +6,7 @@
 #include "component/ComponentManager.h"
 #include "Project.h"
 #include "utility/messaging/MessageListener.h"
+#include "utility/messaging/type/MessageFinishedParsing.h"
 #include "utility/messaging/type/MessageLoadProject.h"
 #include "utility/messaging/type/MessageLoadSource.h"
 #include "utility/messaging/type/MessageRefresh.h"
@@ -17,7 +18,8 @@ class GraphAccessProxy;
 class LocationAccessProxy;
 
 class Application
-	: public MessageListener<MessageLoadProject>
+	: public MessageListener<MessageFinishedParsing>
+	, public MessageListener<MessageLoadProject>
 	, public MessageListener<MessageLoadSource>
 	, public MessageListener<MessageRefresh>
 	, public MessageListener<MessageSaveProject>
@@ -35,8 +37,7 @@ public:
 private:
 	Application();
 
-	void activateInitialNode() const;
+	virtual void handleMessage(MessageFinishedParsing* message);
-
 	virtual void handleMessage(MessageLoadProject* message);
 	virtual void handleMessage(MessageLoadSource* message);
 	virtual void handleMessage(MessageRefresh* message);

src/lib/CMakeLists.txt

@@ -13,6 +13,8 @@ add_files(
 	data/parser/cxx/ASTConsumer.h
 	data/parser/cxx/ASTVisitor.cpp
 	data/parser/cxx/ASTVisitor.h
+	data/parser/cxx/CxxDiagnosticConsumer.cpp
+	data/parser/cxx/CxxDiagnosticConsumer.h
 	data/parser/cxx/CxxParser.cpp
 	data/parser/cxx/CxxParser.h
 	data/parser/cxx/utilityCxx.cpp

src/lib/Project.cpp

@@ -102,12 +102,13 @@ void Project::parseCode()
 		);
 		time = clock() - time;
 
-		m_storage->logGraph();
+		// m_storage->logGraph();
-		m_storage->logLocations();
+		// m_storage->logLocations();
 
-		LOG_INFO_STREAM(<< "parse time: " << (double)(time) / CLOCKS_PER_SEC);
+		double parseTime = (double)(time) / CLOCKS_PER_SEC;
+		LOG_INFO_STREAM(<< "parse time: " << parseTime);
 
-		MessageFinishedParsing().dispatch();
+		MessageFinishedParsing(parseTime, m_storage->getErrorCount()).dispatch();
 	}
 }
 

src/lib/component/controller/CodeController.cpp

@@ -38,8 +38,34 @@ void CodeController::handleMessage(MessageActivateTokens* message)
 		activeTokenIds = m_graphAccess->getActiveTokenIdsForId(activeTokenIds[0], &declarationId);
 	}
 
-	getView()->setActiveTokenIds(activeTokenIds);
+	CodeView* view = getView();
-	getView()->showCodeSnippets(getSnippetsForActiveTokenIds(activeTokenIds, declarationId));
+	view->setActiveTokenIds(activeTokenIds);
+	view->setErrorMessages(std::vector<std::string>());
+	view->showCodeSnippets(getSnippetsForActiveTokenIds(activeTokenIds, declarationId));
+}
+
+void CodeController::handleMessage(MessageFinishedParsing* message)
+{
+	if (message->errorCount > 0)
+	{
+		std::vector<std::string> errorMessages;
+		TokenLocationCollection errorCollection = m_locationAccess->getErrorTokenLocations(&errorMessages);
+
+		std::vector<CodeView::CodeSnippetParams> snippets;
+
+		errorCollection.forEachTokenLocationFile(
+			[&](TokenLocationFile* file) -> void
+			{
+				std::vector<CodeView::CodeSnippetParams> fileSnippets = getSnippetsForFile(file);
+				snippets.insert(snippets.end(), fileSnippets.begin(), fileSnippets.end());
+			}
+		);
+
+		CodeView* view = getView();
+		view->setActiveTokenIds(std::vector<Id>());
+		view->setErrorMessages(errorMessages);
+		view->showCodeSnippets(snippets);
+	}
 }
 
 void CodeController::handleMessage(MessageRefresh* message)
@@ -78,28 +104,12 @@ std::vector<CodeView::CodeSnippetParams> CodeController::getSnippetsForActiveTok
 	collection.forEachTokenLocationFile(
 		[&](TokenLocationFile* file) -> void
 		{
-			const std::string filePath = file->getFilePath();
+			std::vector<CodeView::CodeSnippetParams> fileSnippets = getSnippetsForFile(file);
-			std::shared_ptr<TextAccess> textAccess = TextAccess::createFromFile(filePath);
 
-			std::vector<std::pair<uint, uint>> ranges = getSnippetRangesForFile(file, s_lineRadius);
+			for (CodeView::CodeSnippetParams& params : fileSnippets)
-			std::vector<CodeView::CodeSnippetParams> fileSnippets;
-
-			for (const std::pair<uint, uint>& range: ranges)
 			{
-				unsigned int firstLineNumber = std::max<int>(1, range.first - s_lineRadius);
+				params.locationFile = m_locationAccess->getTokenLocationsForLinesInFile(
-				unsigned int lastLineNumber = std::min<int>(textAccess->getLineCount(), range.second + s_lineRadius);
+					file->getFilePath(), params.startLineNumber, params.endLineNumber);
-
-				CodeView::CodeSnippetParams params;
-				for (const std::string& line: textAccess->getLines(firstLineNumber, lastLineNumber))
-				{
-					params.code += line;
-				}
-
-				params.startLineNumber = firstLineNumber;
-				params.locationFile =
-					m_locationAccess->getTokenLocationsForLinesInFile(filePath, firstLineNumber, lastLineNumber);
-
-				fileSnippets.push_back(params);
 			}
 
 			if (declarationId != 0)
@@ -133,9 +143,32 @@ std::vector<CodeView::CodeSnippetParams> CodeController::getSnippetsForActiveTok
 	return snippets;
 }
 
-std::vector<std::pair<uint, uint>> CodeController::getSnippetRangesForFile(
+std::vector<CodeView::CodeSnippetParams> CodeController::getSnippetsForFile(const TokenLocationFile* file) const
-	TokenLocationFile* file, const uint lineRadius
+{
-) const
+	std::shared_ptr<TextAccess> textAccess = TextAccess::createFromFile(file->getFilePath());
+
+	std::vector<std::pair<uint, uint>> ranges = getSnippetRangesForFile(file);
+	std::vector<CodeView::CodeSnippetParams> snippets;
+
+	for (const std::pair<uint, uint>& range: ranges)
+	{
+		CodeView::CodeSnippetParams params;
+		params.locationFile = *file;
+		params.startLineNumber = std::max<int>(1, range.first - s_lineRadius);
+		params.endLineNumber = std::min<int>(textAccess->getLineCount(), range.second + s_lineRadius);
+
+		for (const std::string& line: textAccess->getLines(params.startLineNumber, params.endLineNumber))
+		{
+			params.code += line;
+		}
+
+		snippets.push_back(params);
+	}
+
+	return snippets;
+}
+
+std::vector<std::pair<uint, uint>> CodeController::getSnippetRangesForFile(const TokenLocationFile* file) const
 {
 	std::vector<std::pair<uint, uint>> ranges;
 	uint start = 0;
@@ -152,7 +185,7 @@ std::vector<std::pair<uint, uint>> CodeController::getSnippetRangesForFile(
 				{
 					start = lineNumber;
 				}
-				else if (end && lineNumber > end + 2 * lineRadius + 1)
+				else if (end && lineNumber > end + 2 * s_lineRadius + 1)
 				{
 					ranges.push_back(std::make_pair(uint(start), uint(end)));
 					start = lineNumber;

src/lib/component/controller/CodeController.h

@@ -8,6 +8,7 @@
 #include "utility/messaging/MessageListener.h"
 #include "utility/messaging/type/MessageActivateTokenLocation.h"
 #include "utility/messaging/type/MessageActivateTokens.h"
+#include "utility/messaging/type/MessageFinishedParsing.h"
 #include "utility/messaging/type/MessageRefresh.h"
 #include "utility/messaging/type/MessageShowFile.h"
 #include "utility/types.h"
@@ -20,6 +21,7 @@ class CodeController
 	: public Controller
 	, public MessageListener<MessageActivateTokenLocation>
 	, public MessageListener<MessageActivateTokens>
+	, public MessageListener<MessageFinishedParsing>
 	, public MessageListener<MessageRefresh>
 	, public MessageListener<MessageShowFile>
 {
@@ -32,6 +34,7 @@ private:
 
 	virtual void handleMessage(MessageActivateTokenLocation* message);
 	virtual void handleMessage(MessageActivateTokens* message);
+	virtual void handleMessage(MessageFinishedParsing* message);
 	virtual void handleMessage(MessageRefresh* message);
 	virtual void handleMessage(MessageShowFile* message);
 
@@ -39,7 +42,8 @@ private:
 
 	std::vector<CodeView::CodeSnippetParams> getSnippetsForActiveTokenIds(
 		const std::vector<Id>& ids, Id declarationId) const;
-	std::vector<std::pair<uint, uint>> getSnippetRangesForFile(TokenLocationFile* file, const uint lineRadius) const;
+	std::vector<CodeView::CodeSnippetParams> getSnippetsForFile(const TokenLocationFile* file) const;
+	std::vector<std::pair<uint, uint>> getSnippetRangesForFile(const TokenLocationFile* file) const;
 
 	GraphAccess* m_graphAccess;
 	LocationAccess* m_locationAccess;

src/lib/component/controller/GraphController.cpp

@@ -56,6 +56,11 @@ void GraphController::handleMessage(MessageActivateTokens* message)
 	createDummyGraphForTokenIds(m_activeTokenIds);
 }
 
+void GraphController::handleMessage(MessageFinishedParsing* message)
+{
+	getView()->clear();
+}
+
 void GraphController::handleMessage(MessageGraphNodeExpand* message)
 {
 	DummyNode* node = findDummyNodeAccessRecursive(m_dummyNodes, message->tokenId, message->access);
@@ -153,10 +158,26 @@ DummyNode GraphController::createDummyNodeTopDown(Node* node)
 
 			Edge* edge = child->getMemberEdge();
 			TokenComponentAccess* access = edge->getComponent<TokenComponentAccess>();
+			TokenComponentAccess::AccessType accessType = TokenComponentAccess::ACCESS_NONE;
+
 			if (access)
 			{
-				TokenComponentAccess::AccessType accessType = access->getAccess();
+				accessType = access->getAccess();
+			}
+			else
+			{
+				if (node->isType(Node::NODE_CLASS | Node::NODE_STRUCT))
+				{
+					accessType = TokenComponentAccess::ACCESS_PUBLIC;
+				}
+				else
+				{
+					parent = &result;
+				}
+			}
 
+			if (accessType != TokenComponentAccess::ACCESS_NONE)
+			{
 				for (DummyNode& dummy : result.subNodes)
 				{
 					if (dummy.accessType == accessType)
@@ -178,10 +199,6 @@ DummyNode GraphController::createDummyNodeTopDown(Node* node)
 					}
 				}
 			}
-			else
-			{
-				parent = &result;
-			}
 
 			parent->subNodes.push_back(createDummyNodeTopDown(child));
 		}

src/lib/component/controller/GraphController.h

@@ -5,6 +5,7 @@
 
 #include "utility/messaging/MessageListener.h"
 #include "utility/messaging/type/MessageActivateTokens.h"
+#include "utility/messaging/type/MessageFinishedParsing.h"
 #include "utility/messaging/type/MessageGraphNodeExpand.h"
 #include "utility/messaging/type/MessageGraphNodeMove.h"
 
@@ -21,6 +22,7 @@ class Node;
 class GraphController
 	: public Controller
 	, public MessageListener<MessageActivateTokens>
+	, public MessageListener<MessageFinishedParsing>
 	, public MessageListener<MessageGraphNodeExpand>
 	, public MessageListener<MessageGraphNodeMove>
 {
@@ -47,6 +49,7 @@ public:
 
 private:
 	virtual void handleMessage(MessageActivateTokens* message);
+	virtual void handleMessage(MessageFinishedParsing* message);
 	virtual void handleMessage(MessageGraphNodeExpand* message);
 	virtual void handleMessage(MessageGraphNodeMove* message);
 

src/lib/component/controller/SearchController.cpp

@@ -32,6 +32,11 @@ void SearchController::handleMessage(MessageFind* message)
 	getView()->setFocus();
 }
 
+void SearchController::handleMessage(MessageFinishedParsing* message)
+{
+	getView()->setText("");
+}
+
 void SearchController::handleMessage(MessageRefresh* message)
 {
 	getView()->refreshView();

src/lib/component/controller/SearchController.h

@@ -7,6 +7,7 @@
 #include "utility/messaging/MessageListener.h"
 #include "utility/messaging/type/MessageActivateTokens.h"
 #include "utility/messaging/type/MessageFind.h"
+#include "utility/messaging/type/MessageFinishedParsing.h"
 #include "utility/messaging/type/MessageRefresh.h"
 #include "utility/messaging/type/MessageSearch.h"
 #include "utility/messaging/type/MessageSearchAutocomplete.h"
@@ -18,6 +19,7 @@ class SearchController
 	: public Controller
 	, public MessageListener<MessageActivateTokens>
 	, public MessageListener<MessageFind>
+	, public MessageListener<MessageFinishedParsing>
 	, public MessageListener<MessageRefresh>
 	, public MessageListener<MessageSearch>
 	, public MessageListener<MessageSearchAutocomplete>
@@ -29,6 +31,7 @@ public:
 private:
 	virtual void handleMessage(MessageActivateTokens* message);
 	virtual void handleMessage(MessageFind* message);
+	virtual void handleMessage(MessageFinishedParsing* message);
 	virtual void handleMessage(MessageRefresh* message);
 	virtual void handleMessage(MessageSearch* message);
 	virtual void handleMessage(MessageSearchAutocomplete* message);

src/lib/component/controller/StatusBarController.cpp

@@ -2,6 +2,9 @@
 
 #include "component/view/StatusBarView.h"
 
+#include <sstream>
+#include <iomanip>
+
 StatusBarController::StatusBarController()
 	: MessageListener<MessageError>(true)
 	, MessageListener<MessageFinishedParsing>(true)
@@ -23,7 +26,14 @@ StatusBarView* StatusBarController::getView()
 
 void StatusBarController::handleMessage(MessageFinishedParsing* message)
 {
-	setStatus("Parsing Finished");
+	std::stringstream ss;
+	ss << "Parsing Finished: ";
+	ss << std::setprecision(2) << message->parseTime << " seconds, ";
+	ss << message->errorCount << " error(s)";
+
+	bool hasErrors = message->errorCount > 0;
+
+	setStatus(ss.str(), hasErrors);
 }
 
 void StatusBarController::handleMessage(MessageStatus* message)

src/lib/component/view/CodeView.h

@@ -34,8 +34,9 @@ public:
 
 	virtual std::string getName() const;
 
-	virtual void clearCodeSnippets() = 0;
 	virtual void setActiveTokenIds(const std::vector<Id>& activeTokenIds) = 0;
+	virtual void setErrorMessages(const std::vector<std::string>& errorMessages) = 0;
+
 	virtual void showCodeSnippets(const std::vector<CodeSnippetParams>& snippets) = 0;
 	virtual void showCodeFile(const CodeSnippetParams& params) = 0;
 

src/lib/data/Storage.cpp

@@ -48,6 +48,30 @@ void Storage::logLocations() const
 	LOG_INFO_STREAM(<< '\n' << m_locationCollection);
 }
 
+size_t Storage::getErrorCount() const
+{
+	return m_errorMessages.size();
+}
+
+void Storage::onError(const ParseLocation& location, const std::string& message)
+{
+	log("ERROR", message, location);
+
+	if (!location.isValid())
+	{
+		return;
+	}
+
+	Id errorId = m_errorMessages.size();
+
+	TokenLocation* loc = m_errorLocationCollection.addTokenLocation(
+		errorId, location.filePath,
+		location.startLineNumber, location.startColumnNumber,
+		location.endLineNumber, location.endColumnNumber
+	);
+
+	m_errorMessages.push_back(message);
+}
 
 Id Storage::onTypedefParsed(
 	const ParseLocation& location, const std::vector<std::string>& nameHierarchy, const ParseTypeUsage& underlyingType,
@@ -576,7 +600,6 @@ std::vector<Id> Storage::getActiveTokenIdsForId(Id tokenId, Id* declarationId) c
 
 	ret.push_back(token->getId());
 
-	Node* node;
 	if (token->isNode())
 	{
 		Node* node = dynamic_cast<Node*>(token);
@@ -744,6 +767,13 @@ TokenLocationFile Storage::getTokenLocationsForLinesInFile(
 	return ret;
 }
 
+TokenLocationCollection Storage::getErrorTokenLocations(std::vector<std::string>* errorMessages) const
+{
+	errorMessages->insert(errorMessages->begin(), m_errorMessages.begin(), m_errorMessages.end());
+
+	return m_errorLocationCollection;
+}
+
 const Graph& Storage::getGraph() const
 {
 	return m_graph;
@@ -941,8 +971,16 @@ bool Storage::getSubQuerySearchResults(
 	{
 		if (word.size())
 		{
-			SearchResults res = node->runFuzzySearch(word);
+			if (searchNodes.size() > 1)
-			results->insert(res.begin(), res.end());
+			{
+				SearchResults res = node->runFuzzySearchOnSelf(word);
+				results->insert(res.begin(), res.end());
+			}
+			else
+			{
+				SearchResults res = node->runFuzzySearch(word);
+				results->insert(res.begin(), res.end());
+			}
 		}
 		else if (searchNodes.size() == 1)
 		{

src/lib/data/Storage.h

@@ -27,7 +27,11 @@ public:
 	void logGraph() const;
 	void logLocations() const;
 
+	size_t getErrorCount() const;
+
 	// ParserClient implementation
+	virtual void onError(const ParseLocation& location, const std::string& message);
+
 	virtual Id onTypedefParsed(
 		const ParseLocation& location, const std::vector<std::string>& nameHierarchy,
 		const ParseTypeUsage& underlyingType, AccessType access);
@@ -108,6 +112,8 @@ public:
 		const std::string& filePath, uint firstLineNumber, uint lastLineNumber
 	) const;
 
+	virtual TokenLocationCollection getErrorTokenLocations(std::vector<std::string>* errorMessages) const;
+
 protected:
 	const Graph& getGraph() const;
 	const TokenLocationCollection& getTokenLocationCollection() const;
@@ -137,6 +143,9 @@ private:
 
 	SearchIndex m_tokenIndex;
 	SearchIndex m_filterIndex;
+
+	TokenLocationCollection m_errorLocationCollection;
+	std::vector<std::string> m_errorMessages;
 };
 
 #endif // STORAGE_H

src/lib/data/access/LocationAccess.h

@@ -18,6 +18,8 @@ public:
 	virtual TokenLocationFile getTokenLocationsForLinesInFile(
 		const std::string& filePath, uint firstLineNumber, uint lastLineNumber
 	) const = 0;
+
+	virtual TokenLocationCollection getErrorTokenLocations(std::vector<std::string>* errorMessages) const = 0;
 };
 
 

src/lib/data/access/LocationAccessProxy.cpp

@@ -60,3 +60,13 @@ TokenLocationFile LocationAccessProxy::getTokenLocationsForLinesInFile(
 
 	return TokenLocationFile("");
 }
+
+TokenLocationCollection LocationAccessProxy::getErrorTokenLocations(std::vector<std::string>* errorMessages) const
+{
+	if (hasSubject())
+	{
+		return m_subject->getErrorTokenLocations(errorMessages);
+	}
+
+	return TokenLocationCollection();
+}

src/lib/data/access/LocationAccessProxy.h

@@ -19,6 +19,8 @@ public:
 		const std::string& filePath, uint firstLineNumber, uint lastLineNumber
 	) const;
 
+	virtual TokenLocationCollection getErrorTokenLocations(std::vector<std::string>* errorMessages) const;
+
 private:
 	LocationAccess* m_subject;
 };

src/lib/data/parser/ParseLocation.cpp

@@ -9,6 +9,19 @@ ParseLocation::ParseLocation()
 {
 }
 
+ParseLocation::ParseLocation(
+	const std::string& filePath,
+	uint lineNumber,
+	uint columnNumber
+)
+	: filePath(filePath)
+	, startLineNumber(lineNumber)
+	, startColumnNumber(columnNumber)
+	, endLineNumber(lineNumber)
+	, endColumnNumber(columnNumber)
+{
+}
+
 ParseLocation::ParseLocation(
 	const std::string& filePath,
 	uint startLineNumber, uint startColumnNumber,

src/lib/data/parser/ParseLocation.h

@@ -8,6 +8,11 @@
 struct ParseLocation
 {
 	ParseLocation();
+	ParseLocation(
+		const std::string& filePath,
+		uint lineNumber,
+		uint columnNumber
+	);
 	ParseLocation(
 		const std::string& filePath,
 		uint startLineNumber, uint startColumnNumber,

src/lib/data/parser/ParserClient.h

@@ -49,6 +49,8 @@ public:
 	ParserClient();
 	virtual ~ParserClient();
 
+	virtual void onError(const ParseLocation& location, const std::string& message) = 0;
+
 	virtual Id onTypedefParsed(
 		const ParseLocation& location, const std::vector<std::string>& nameHierarchy,
 		const ParseTypeUsage& underlyingType, AccessType access) = 0;

src/lib/data/parser/cxx/ASTConsumer.cpp

@@ -1,5 +1,7 @@
 #include "data/parser/cxx/ASTConsumer.h"
 
+#include "data/parser/ParserClient.h"
+
 ASTConsumer::ASTConsumer(clang::ASTContext* context, ParserClient* client)
 	: m_visitor(context, client)
 {

src/lib/data/parser/cxx/CxxDiagnosticConsumer.cpp

@@ -0,0 +1,75 @@
+#include "data/parser/cxx/CxxDiagnosticConsumer.h"
+
+#include "clang/Basic/SourceManager.h"
+
+#include "data/parser/ParseLocation.h"
+#include "data/parser/ParserClient.h"
+
+CxxDiagnosticConsumer::CxxDiagnosticConsumer(
+	clang::raw_ostream &os,
+	clang::DiagnosticOptions *diags,
+	ParserClient* client,
+	bool useLogging
+)
+	: clang::TextDiagnosticPrinter(os, diags)
+	, m_client(client)
+	, m_isParsingFile(false)
+	, m_useLogging(useLogging)
+{
+}
+
+void CxxDiagnosticConsumer::BeginSourceFile(const clang::LangOptions& langOptions, const clang::Preprocessor* preProcessor)
+{
+	if (m_useLogging)
+	{
+		clang::TextDiagnosticPrinter::BeginSourceFile(langOptions, preProcessor);
+	}
+
+	m_isParsingFile = true;
+}
+
+void CxxDiagnosticConsumer::EndSourceFile()
+{
+	if (m_useLogging)
+	{
+		clang::TextDiagnosticPrinter::EndSourceFile();
+	}
+
+	m_isParsingFile = false;
+}
+
+void CxxDiagnosticConsumer::HandleDiagnostic(clang::DiagnosticsEngine::Level level, const clang::Diagnostic& info)
+{
+	if (m_useLogging)
+	{
+		clang::TextDiagnosticPrinter::HandleDiagnostic(level, info);
+	}
+
+	if (!m_isParsingFile)
+	{
+		return;
+	}
+
+	if (level == clang::DiagnosticsEngine::Error || level == clang::DiagnosticsEngine::Fatal)
+	{
+		llvm::SmallString<100> messageStr;
+		info.FormatDiagnostic(messageStr);
+		std::string message = messageStr.str();
+
+		std::string filePath;
+		uint line = 0;
+		uint column = 0;
+
+		if (info.getLocation().isValid() && info.hasSourceManager())
+		{
+			const clang::SourceManager& sourceManager = info.getSourceManager();
+			clang::PresumedLoc presumedLocation = sourceManager.getPresumedLoc(info.getLocation());
+
+			filePath = presumedLocation.getFilename();
+			line = presumedLocation.getLine();
+			column = presumedLocation.getColumn();
+		}
+
+		m_client->onError(ParseLocation(filePath, line, column), message);
+	}
+}

src/lib/data/parser/cxx/CxxDiagnosticConsumer.h

@@ -0,0 +1,25 @@
+#ifndef CXX_DIAGNOSTIC_CONSUMER
+#define CXX_DIAGNOSTIC_CONSUMER
+
+#include "clang/Frontend/TextDiagnosticPrinter.h"
+
+class ParserClient;
+
+class CxxDiagnosticConsumer
+	: public clang::TextDiagnosticPrinter
+{
+public:
+	CxxDiagnosticConsumer(clang::raw_ostream &os, clang::DiagnosticOptions *diags, ParserClient* client, bool useLogging = true);
+
+	void BeginSourceFile(const clang::LangOptions& langOptions, const clang::Preprocessor* preProcessor);
+	void EndSourceFile();
+
+	void HandleDiagnostic(clang::DiagnosticsEngine::Level level, const clang::Diagnostic& info);
+
+private:
+	ParserClient* m_client;
+	bool m_isParsingFile;
+	bool m_useLogging;
+};
+
+#endif // CXX_DIAGNOSTIC_CONSUMER

src/lib/data/parser/cxx/CxxParser.cpp

@@ -1,9 +1,54 @@
 #include "data/parser/cxx/CxxParser.h"
 
-#include "data/parser/cxx/ASTActionFactory.h"
 #include "utility/logging/logging.h"
 #include "utility/text/TextAccess.h"
 
+#include "data/parser/cxx/ASTActionFactory.h"
+#include "data/parser/cxx/CxxDiagnosticConsumer.h"
+
+namespace {
+
+static std::vector<std::string> getSyntaxOnlyToolArgs(const std::vector<std::string> &ExtraArgs, llvm::StringRef FileName)
+{
+	std::vector<std::string> Args;
+	Args.push_back("clang-tool");
+	Args.push_back("-fsyntax-only");
+	Args.insert(Args.end(), ExtraArgs.begin(), ExtraArgs.end());
+	Args.push_back(FileName.str());
+	return Args;
+}
+
+// custom implementation of clang::runToolOnCodeWithArgs which also sets our custon DiagnosticConsumer
+static bool runToolOnCodeWithArgs(
+	clang::DiagnosticConsumer* DiagConsumer,
+	clang::FrontendAction *ToolAction,
+	const llvm::Twine &Code,
+	const std::vector<std::string> &Args,
+	const llvm::Twine &FileName = "input.cc",
+	const clang::tooling::FileContentMappings &VirtualMappedFiles = clang::tooling::FileContentMappings()
+){
+	llvm::SmallString<16> FileNameStorage;
+	llvm::StringRef FileNameRef = FileName.toNullTerminatedStringRef(FileNameStorage);
+	llvm::IntrusiveRefCntPtr<clang::FileManager> Files(new clang::FileManager(clang::FileSystemOptions()));
+	clang::tooling::ToolInvocation Invocation(getSyntaxOnlyToolArgs(Args, FileNameRef), ToolAction, Files.get());
+
+	llvm::SmallString<1024> CodeStorage;
+	Invocation.mapVirtualFile(FileNameRef,
+	Code.toNullTerminatedStringRef(CodeStorage));
+
+	for (auto &FilenameWithContent : VirtualMappedFiles)
+	{
+		Invocation.mapVirtualFile(FilenameWithContent.first,
+		FilenameWithContent.second);
+	}
+
+	Invocation.setDiagnosticConsumer(DiagConsumer);
+
+	return Invocation.run();
+}
+
+}
+
 CxxParser::CxxParser(ParserClient* client)
 	: Parser(client)
 {
@@ -68,15 +113,22 @@ void CxxParser::parseFiles(
 
 	clang::tooling::ClangTool tool(*compilationDatabase, filePaths);
 
-	ASTActionFactory actionFactory(m_client);
+	llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> options = new clang::DiagnosticOptions();
+	CxxDiagnosticConsumer reporter(llvm::errs(), &*options, m_client);
+	tool.setDiagnosticConsumer(&reporter);
 
+	ASTActionFactory actionFactory(m_client);
 	tool.run(&actionFactory);
 }
 
 void CxxParser::parseFile(std::shared_ptr<TextAccess> textAccess)
 {
-	ASTActionFactory actionFactory(m_client);
 	std::vector<std::string> args;
 	args.push_back("-fno-delayed-template-parsing");
-	clang::tooling::runToolOnCodeWithArgs(actionFactory.create(), textAccess->getText(), args);
+
+	llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> options = new clang::DiagnosticOptions();
+	CxxDiagnosticConsumer reporter(llvm::errs(), &*options, m_client, false);
+
+	ASTActionFactory actionFactory(m_client);
+	runToolOnCodeWithArgs(&reporter, actionFactory.create(), textAccess->getText(), args);
 }

src/lib/data/search/SearchNode.cpp

@@ -107,6 +107,20 @@ SearchResults SearchNode::runFuzzySearch(const std::string& query) const
 	return result;
 }
 
+SearchResults SearchNode::runFuzzySearchOnSelf(const std::string& query) const
+{
+	SearchResults result;
+	FuzzyMap m = fuzzyMatchRecursive(query, 0, 0, 0);
+	for (const std::pair<size_t, const SearchNode*>& p : m)
+	{
+		addResultsRecursive(result, p.first, p.second);
+	}
+
+	// TODO: Currently all matches are added to the ordered set and get compared by their fullName for alphabetical
+	// order. This could be improved by limiting the number of items to e.g. 100.
+	return result;
+}
+
 void SearchNode::addResultsRecursive(SearchResults& result, size_t weight, const SearchNode* node) const
 {
 	result.insert(SearchResult(weight, node, this));

src/lib/data/search/SearchNode.h

@@ -37,6 +37,8 @@ public:
 	const std::set<std::shared_ptr<SearchNode>>& getChildren() const;
 
 	SearchResults runFuzzySearch(const std::string& query) const;
+	SearchResults runFuzzySearchOnSelf(const std::string& query) const;
+
 	void addResultsRecursive(SearchResults& result, size_t weight, const SearchNode* node) const;
 
 private:

src/lib/utility/messaging/type/MessageFinishedParsing.h

@@ -6,7 +6,9 @@
 class MessageFinishedParsing: public Message<MessageFinishedParsing>
 {
 public:
-	MessageFinishedParsing()
+	MessageFinishedParsing(float parseTime, size_t errorCount)
+		: parseTime(parseTime)
+		, errorCount(errorCount)
 	{
 	}
 
@@ -14,6 +16,9 @@ public:
 	{
 		return "MessageFinishedParsing";
 	}
+
+	float parseTime;
+	size_t errorCount;
 };
 
 #endif // MESSAGE_FINISHED_PARSING_H

src/test/CxxParserTestSuite.h

@@ -1397,6 +1397,8 @@ public:
 		filePaths.push_back("data/CxxParserTestSuite/code.cpp");
 		parser.parseFiles(filePaths, std::vector<std::string>(), std::vector<std::string>());
 
+		TS_ASSERT_EQUALS(client.errors.size(), 0);
+
 		TS_ASSERT_EQUALS(client.typedefs.size(), 1);
 		TS_ASSERT_EQUALS(client.classes.size(), 4);
 		TS_ASSERT_EQUALS(client.enums.size(), 1);
@@ -1414,10 +1416,25 @@ public:
 		TS_ASSERT_EQUALS(client.typeUses.size(), 8);
 	}
 
+	void test_cxx_parser_catches_error()
+	{
+		std::shared_ptr<TestParserClient> client = parseCode(
+			"int a = b;\n"
+		);
+
+		TS_ASSERT_EQUALS(client->errors.size(), 1);
+		TS_ASSERT_EQUALS(client->errors[0], "use of undeclared identifier \'b\' <1:9 1:9>");
+	}
+
 private:
 	class TestParserClient: public ParserClient
 	{
 	public:
+		virtual void onError(const ParseLocation& location, const std::string& message)
+		{
+			errors.push_back(addLocationSuffix(message, location));
+		}
+
 		virtual Id onTypedefParsed(
 			const ParseLocation& location, const std::vector<std::string>& nameHierarchy, const ParseTypeUsage& underlyingType,
 			AccessType access
@@ -1610,6 +1627,8 @@ private:
 			return 0;
 		}
 
+		std::vector<std::string> errors;
+
 		std::vector<std::string> typedefs;
 		std::vector<std::string> classes;
 		std::vector<std::string> enums;