Clang: Remove dead code

Change-Id: Ia36e96424580d9b34000cf4a9b38eab98f9c449c
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>

1 files changed, 0 insertions, 531 deletions

diff --git a/src/plugins/clangcodemodel/semanticmarker.cpp b/src/plugins/clangcodemodel/semanticmarker.cpp
deleted file mode 100644
index 274e28e5ca..0000000000
--- a/src/plugins/clangcodemodel/semanticmarker.cpp
+++ /dev/null
@@ -1,531 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company.  For licensing terms and
-** conditions see http://www.qt.io/terms-conditions.  For further information
-** use the contact form at http://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, The Qt Company gives you certain additional
-** rights.  These rights are described in The Qt Company LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-****************************************************************************/
-
-#include "semanticmarker.h"
-#include "unit.h"
-#include "utils_p.h"
-#include "cxraii.h"
-
-#include <utils/mimetypes/mimedatabase.h>
-#include <utils/qtcassert.h>
-
-using namespace ClangCodeModel;
-using namespace ClangCodeModel::Internal;
-
-static const unsigned ATTACHED_NOTES_LIMIT = 10;
-
-SemanticMarker::SemanticMarker()
-{
-}
-
-SemanticMarker::~SemanticMarker()
-{
-}
-
-QString SemanticMarker::fileName() const
-{
-    if (!m_unit)
-        return QString();
-
-    return m_unit->fileName();
-}
-
-void SemanticMarker::setFileName(const QString &fileName)
-{
-    if (this->fileName() == fileName)
-        return;
-
-    QStringList oldOptions;
-    if (m_unit)
-        oldOptions = m_unit->compilationOptions();
-    m_unit = Unit::create(fileName);
-    if (!oldOptions.isEmpty())
-        m_unit->setCompilationOptions(oldOptions);
-
-    unsigned clangOpts = clang_defaultEditingTranslationUnitOptions();
-    clangOpts |= CXTranslationUnit_DetailedPreprocessingRecord;
-    clangOpts |= CXTranslationUnit_Incomplete;
-    clangOpts &= ~CXTranslationUnit_CacheCompletionResults;
-    m_unit->setManagementOptions(clangOpts);
-}
-
-void SemanticMarker::setCompilationOptions(const QStringList &options)
-{
-    QTC_ASSERT(m_unit, return);
-
-    if (m_unit->compilationOptions() == options)
-        return;
-
-    m_unit->setCompilationOptions(options);
-    m_unit->unload();
-}
-
-void SemanticMarker::reparse(const UnsavedFiles &unsavedFiles)
-{
-    QTC_ASSERT(m_unit, return);
-
-    m_unit->setUnsavedFiles(unsavedFiles);
-    if (m_unit->isLoaded())
-        m_unit->reparse();
-    else
-        m_unit->parse();
-}
-
-/**
- * \brief Calculate one or several ranges and append diagnostic for each range
- * Extracted from SemanticMarker::diagnostics() to reuse code
- */
-static void appendDiagnostic(const CXDiagnostic &diag,
-                             const CXSourceLocation &cxLocation,
-                             Diagnostic::Severity severity,
-                             const QString &spelling,
-                             QList<Diagnostic> &diagnostics)
-{
-    const unsigned rangeCount = clang_getDiagnosticNumRanges(diag);
-    bool expandLocation = true;
-
-    for (unsigned i = 0; i < rangeCount; ++i) {
-        CXSourceRange r = clang_getDiagnosticRange(diag, i);
-        const SourceLocation &spellBegin = Internal::getSpellingLocation(clang_getRangeStart(r));
-        const SourceLocation &spellEnd = Internal::getSpellingLocation(clang_getRangeEnd(r));
-        unsigned length = spellEnd.offset() - spellBegin.offset();
-
-        // File name can be empty due clang bug
-        if (!spellBegin.fileName().isEmpty()) {
-            Diagnostic d(severity, spellBegin, length, spelling);
-            diagnostics.append(d);
-            expandLocation = false;
-        }
-    }
-
-    if (expandLocation) {
-        const SourceLocation &location = Internal::getExpansionLocation(cxLocation);
-        Diagnostic d(severity, location, 0, spelling);
-        diagnostics.append(d);
-    }
-}
-
-static bool isBlackListedDiagnostic(const Utils::MimeType &mimeType, const QString &diagnostic)
-{
-    static const QStringList blackList {
-        QLatin1String("#pragma once in main file"),
-        QLatin1String("#include_next in primary source file")
-    };
-
-    return mimeType.inherits(QLatin1String("text/x-chdr")) && blackList.contains(diagnostic);
-}
-
-QList<Diagnostic> SemanticMarker::diagnostics() const
-{
-    QList<Diagnostic> diagnostics;
-    if (!m_unit || !m_unit->isLoaded())
-        return diagnostics;
-
-    Utils::MimeDatabase mimeDatabase;
-    const Utils::MimeType mimeType = mimeDatabase.mimeTypeForFile(fileName());
-
-    const unsigned diagCount = m_unit->getNumDiagnostics();
-    for (unsigned i = 0; i < diagCount; ++i) {
-        ScopedCXDiagnostic diag(m_unit->getDiagnostic(i));
-
-        Diagnostic::Severity severity = static_cast<Diagnostic::Severity>(clang_getDiagnosticSeverity(diag));
-        if (severity == Diagnostic::Ignored || severity == Diagnostic::Note)
-            continue;
-
-        CXSourceLocation cxLocation = clang_getDiagnosticLocation(diag);
-        QString spelling = Internal::getQString(clang_getDiagnosticSpelling(diag));
-
-        if (isBlackListedDiagnostic(mimeType, spelling))
-            continue;
-
-        // Attach messages with Diagnostic::Note severity
-        ScopedCXDiagnosticSet cxChildren(clang_getChildDiagnostics(diag));
-        const unsigned numChildren = clang_getNumDiagnosticsInSet(cxChildren);
-        const unsigned size = qMin(ATTACHED_NOTES_LIMIT, numChildren);
-        for (unsigned di = 0; di < size; ++di) {
-            ScopedCXDiagnostic child(clang_getDiagnosticInSet(cxChildren, di));
-
-            const Diagnostic::Severity severity
-                = static_cast<Diagnostic::Severity>(clang_getDiagnosticSeverity(child));
-            if (severity == Diagnostic::Ignored || severity == Diagnostic::Note)
-                continue;
-
-            spelling.append(QLatin1String("\n  "));
-            spelling.append(Internal::getQString(clang_getDiagnosticSpelling(child)));
-        }
-
-        // Fatal error may occur in another file, but it breaks whole parsing
-        // Typical fatal error is unresolved #include
-        if (severity == Diagnostic::Fatal) {
-            for (unsigned di = 0; di < numChildren; ++di) {
-                ScopedCXDiagnostic child(clang_getDiagnosticInSet(cxChildren, di));
-                appendDiagnostic(child, clang_getDiagnosticLocation(child), Diagnostic::Warning, spelling, diagnostics);
-            }
-        }
-
-        appendDiagnostic(diag, cxLocation, severity, spelling, diagnostics);
-    }
-
-    return diagnostics;
-}
-
-QList<SemanticMarker::Range> SemanticMarker::ifdefedOutBlocks() const
-{
-    QList<Range> blocks;
-
-    if (!m_unit || !m_unit->isLoaded())
-        return blocks;
-
-#if CINDEX_VERSION_MINOR >= 21
-    CXSourceRangeList *skippedRanges = clang_getSkippedRanges(m_unit->clangTranslationUnit(),
-                                                              m_unit->getFile());
-    blocks.reserve(skippedRanges->count);
-    for (unsigned i = 0; i < skippedRanges->count; ++i) {
-        const CXSourceRange &r = skippedRanges->ranges[i];
-        const SourceLocation &spellBegin = Internal::getSpellingLocation(clang_getRangeStart(r));
-        if (spellBegin.fileName() != fileName())
-            continue;
-        const SourceLocation &spellEnd = Internal::getSpellingLocation(clang_getRangeEnd(r));
-        const int begin = spellBegin.offset() + 1;
-        const int end = spellEnd.offset() - spellEnd.column();
-        blocks.append(Range(begin, end));
-    }
-    clang_disposeSourceRangeList(skippedRanges);
-#endif
-
-    return blocks;
-}
-
-namespace {
-static void add(QList<SourceMarker> &markers,
-                const CXSourceRange &extent,
-                SourceMarker::Kind kind)
-{
-    CXSourceLocation start = clang_getRangeStart(extent);
-    CXSourceLocation end = clang_getRangeEnd(extent);
-    const SourceLocation &location = Internal::getExpansionLocation(start);
-    const SourceLocation &locationEnd = Internal::getExpansionLocation(end);
-
-    if (location.offset() < locationEnd.offset()) {
-        const unsigned length = locationEnd.offset() - location.offset();
-        markers.append(SourceMarker(location, length, kind));
-    }
-}
-
-/**
- * @brief Selects correct highlighting for cursor that is reference
- * @return SourceMarker::Unknown if cannot select highlighting
- */
-static SourceMarker::Kind getKindByReferencedCursor(const CXCursor &cursor)
-{
-    const CXCursor referenced = clang_getCursorReferenced(cursor);
-    switch (clang_getCursorKind(referenced)) {
-    case CXCursor_EnumConstantDecl:
-        return SourceMarker::Enumeration;
-
-    case CXCursor_FieldDecl:
-    case CXCursor_ObjCIvarDecl:
-    case CXCursor_ObjCPropertyDecl:
-        return SourceMarker::Field;
-
-    case CXCursor_FunctionDecl:
-    case CXCursor_FunctionTemplate:
-    case CXCursor_Constructor:
-        return SourceMarker::Function;
-
-    case CXCursor_VarDecl:
-    case CXCursor_ParmDecl:
-    case CXCursor_NonTypeTemplateParameter:
-        return SourceMarker::Local;
-
-    case CXCursor_CXXMethod:
-        if (clang_CXXMethod_isVirtual(referenced))
-            return SourceMarker::VirtualMethod;
-        else
-            return SourceMarker::Function;
-
-    case CXCursor_ObjCClassMethodDecl:
-    case CXCursor_ObjCInstanceMethodDecl:
-        // calling method as property, e.h. "layer.shouldRasterize = YES"
-        return SourceMarker::Field;
-
-    case CXCursor_UnexposedDecl:
-        // NSObject "self" method which is a pseudo keyword
-        if (clang_getCursorLanguage(referenced) == CXLanguage_ObjC)
-            return SourceMarker::PseudoKeyword;
-        break;
-
-    default:
-        break;
-    }
-    return SourceMarker::Unknown;
-}
-
-static const QSet<QString> ObjcPseudoKeywords = QSet<QString>()
-        << QLatin1String("end")
-        << QLatin1String("try")
-        << QLatin1String("defs")
-        << QLatin1String("throw")
-        << QLatin1String("class")
-        << QLatin1String("catch")
-        << QLatin1String("encode")
-        << QLatin1String("public")
-        << QLatin1String("dynamic")
-        << QLatin1String("finally")
-        << QLatin1String("package")
-        << QLatin1String("private")
-        << QLatin1String("optional")
-        << QLatin1String("property")
-        << QLatin1String("protocol")
-        << QLatin1String("required")
-        << QLatin1String("selector")
-        << QLatin1String("interface")
-        << QLatin1String("protected")
-        << QLatin1String("synthesize")
-        << QLatin1String("not_keyword")
-        << QLatin1String("synchronized")
-        << QLatin1String("implementation")
-        << QLatin1String("compatibility_alias")
-           ;
-
-} // Anonymous namespace
-
-/**
- * @brief SemanticMarker::sourceMarkersInRange
- * @param firstLine - first line where to generate highlighting markers
- * @param lastLine - last line where to generate highlighting markers
- *
- * There still two kinds of problems:
- *    - clang_annotateTokens() can return wrong cursor, and it's normal behavior
- *    - some cases no handled
- *
- * Problems caused by wrong cursors:
- *    - range-based for from C++ 2011
- *    - identifiers in some compound statements have type DeclStmt
- *      or CompoundStmt which refers to top-level construction.
- *    - CXCursor_ObjCIvarDecl mapped to field, but instance variable have
- *      incorrect cursor kind if it declared in private interface
- *          @interface MyApplication() {
- *              NSArray* _items;
- *          }
- *
- * Missed cases:
- *    - global variables highlighted as locals
- *    - appropriate marker had not been selected for listed cursors:
- *          CXCursor_ObjCProtocolExpr, CXCursor_ObjCEncodeExpr,
- *          CXCursor_ObjCDynamicDecl, CXCursor_ObjCBridgedCastExpr,
- *          CXCursor_ObjCSuperClassRef
- *    - template members of template classes&functions always highlighted
- *      as members, even if they are functions - no way to differ found.
- *    - @1, @{}, @[]
- */
-QList<SourceMarker> SemanticMarker::sourceMarkersInRange(unsigned firstLine,
-                                                         unsigned lastLine)
-{
-    QList<SourceMarker> result;
-
-    if (!m_unit || !m_unit->isLoaded())
-        return result;
-
-    // Highlighting called asynchronously, and a few lines at the end can be deleted for this time.
-    CXSourceRange unitRange = clang_getCursorExtent(m_unit->getTranslationUnitCursor());
-    SourceLocation unitEnd = getExpansionLocation(clang_getRangeEnd(unitRange));
-    if (lastLine > unitEnd.line())
-        lastLine = unitEnd.line();
-
-    if (firstLine > lastLine)
-        return result;
-
-    IdentifierTokens idTokens(*m_unit, firstLine, lastLine);
-
-    const CXSourceRange *atTokenExtent = 0;
-    for (unsigned i = 0; i < idTokens.count(); ++i) {
-        const CXToken &tok = idTokens.token(i);
-        CXTokenKind kind = clang_getTokenKind(tok);
-        if (atTokenExtent) {
-            if (CXToken_Literal == kind) {
-                if (m_unit->getTokenSpelling(tok).startsWith(QLatin1Char('"')))
-                    add(result, *atTokenExtent, SourceMarker::ObjCString);
-                atTokenExtent = 0;
-                continue;
-            } else {
-                add(result, *atTokenExtent, SourceMarker::PseudoKeyword);
-                atTokenExtent = 0;
-            }
-        }
-
-        const CXSourceRange &tokenExtent = idTokens.extent(i);
-
-        if (CXToken_Keyword == kind) {
-            QString spell = m_unit->getTokenSpelling(tok);
-            if (ObjcPseudoKeywords.contains(spell))
-                add(result, tokenExtent, SourceMarker::PseudoKeyword);
-            continue;
-        }
-
-        if (CXToken_Punctuation == kind) {
-            static const QLatin1String at("@");
-            if (m_unit->getTokenSpelling(tok) == at)
-                atTokenExtent = &tokenExtent;
-            continue;
-        }
-
-        if (CXToken_Identifier != kind)
-            continue;
-
-        const CXCursor &cursor = idTokens.cursor(i);
-        const CXCursorKind cursorKind = clang_getCursorKind(cursor);
-        if (clang_isInvalid(cursorKind))
-            continue;
-
-        switch (cursorKind) {
-        case CXCursor_EnumConstantDecl:
-            add(result, tokenExtent, SourceMarker::Enumeration);
-            break;
-
-        case CXCursor_ClassDecl:
-        case CXCursor_UnionDecl:
-        case CXCursor_ClassTemplate:
-        case CXCursor_ClassTemplatePartialSpecialization:
-        case CXCursor_EnumDecl:
-        case CXCursor_Namespace:
-        case CXCursor_NamespaceRef:
-        case CXCursor_NamespaceAlias:
-        case CXCursor_StructDecl:
-        case CXCursor_TemplateRef:
-        case CXCursor_TypeRef:
-        case CXCursor_TypedefDecl:
-        case CXCursor_Constructor:
-        case CXCursor_TemplateTypeParameter:
-        case CXCursor_TemplateTemplateParameter:
-        case CXCursor_UnexposedDecl: /* friend class MyClass; */
-            add(result, tokenExtent, SourceMarker::Type);
-            break;
-
-        case CXCursor_ParmDecl:
-        case CXCursor_VariableRef:
-        case CXCursor_VarDecl:
-        case CXCursor_NonTypeTemplateParameter:
-            add(result, tokenExtent, SourceMarker::Local);
-            break;
-
-        case CXCursor_MemberRefExpr:
-        case CXCursor_MemberRef:
-        case CXCursor_DeclRefExpr:
-        case CXCursor_CallExpr: {
-            SourceMarker::Kind kind = getKindByReferencedCursor(cursor);
-            if (kind == SourceMarker::Unknown && cursorKind == CXCursor_MemberRefExpr) {
-                /* template class member in template function */
-                kind = SourceMarker::Field;
-            }
-            if (kind != SourceMarker::Unknown)
-                add(result, tokenExtent, kind);
-        } break;
-
-        case CXCursor_FieldDecl:
-            add(result, tokenExtent, SourceMarker::Field);
-            break;
-
-        case CXCursor_Destructor:
-        case CXCursor_CXXMethod: {
-            if (clang_CXXMethod_isVirtual(cursor))
-                add(result, tokenExtent, SourceMarker::VirtualMethod);
-            else
-                add(result, tokenExtent, SourceMarker::Function);
-        } break;
-
-        case CXCursor_CXXOverrideAttr:
-        case CXCursor_CXXFinalAttr:
-        case CXCursor_AnnotateAttr: // 'annotate' in '__attribute__((annotate("AnyComment")))'
-        case CXCursor_UnexposedAttr: // 'align' in '__declspec(align(8))'
-            add(result, tokenExtent, SourceMarker::PseudoKeyword);
-            break;
-
-        case CXCursor_FunctionDecl:
-        case CXCursor_FunctionTemplate:
-        case CXCursor_OverloadedDeclRef:
-            add(result, tokenExtent, SourceMarker::Function);
-            break;
-
-        case CXCursor_ObjCInstanceMethodDecl:
-        case CXCursor_ObjCClassMethodDecl:
-        case CXCursor_ObjCSelectorExpr:
-            add(result, tokenExtent, SourceMarker::ObjectiveCMessage);
-            break;
-
-        case CXCursor_ObjCMessageExpr: {
-            static const QLatin1String super("super");
-            if (m_unit->getTokenSpelling(tok) == super)
-                add(result, tokenExtent, SourceMarker::PseudoKeyword);
-            else
-                add(result, tokenExtent, SourceMarker::ObjectiveCMessage);
-        } break;
-
-        case CXCursor_ObjCCategoryDecl:
-        case CXCursor_ObjCCategoryImplDecl:
-        case CXCursor_ObjCImplementationDecl:
-        case CXCursor_ObjCInterfaceDecl:
-        case CXCursor_ObjCProtocolDecl:
-        case CXCursor_ObjCProtocolRef:
-        case CXCursor_ObjCClassRef:
-        case CXCursor_ObjCSuperClassRef:
-        case CXCursor_TypeAliasDecl: // C++11 type alias: 'using value_t = T'
-            add(result, tokenExtent, SourceMarker::Type);
-            break;
-
-        case CXCursor_ObjCSynthesizeDecl:
-        case CXCursor_ObjCDynamicDecl:
-        case CXCursor_ObjCPropertyDecl:
-        case CXCursor_ObjCIvarDecl:
-            add(result, tokenExtent, SourceMarker::Field);
-            break;
-
-        case CXCursor_MacroDefinition:
-        case CXCursor_MacroExpansion:
-            add(result, tokenExtent, SourceMarker::Macro);
-            break;
-
-        case CXCursor_LabelRef:
-        case CXCursor_LabelStmt:
-            add(result, tokenExtent, SourceMarker::Label);
-            break;
-
-        default:
-            break;
-        }
-    }
-
-    return result;
-}
-
-Unit::Ptr SemanticMarker::unit() const
-{
-    return m_unit;
-}