Function declVisitor

plugins/clang/codecompletion/completionhelper.cpp:218–333

}

CXChildVisitResult declVisitor(CXCursor cursor, CXCursor parent, CXClientData d)
{
    CXCursorKind kind = clang_getCursorKind(cursor);
    auto* data = static_cast<struct ImplementsInfo*>(d);

    auto location = clang_getCursorLocation(cursor);
    if (clang_Location_isInSystemHeader(location)) {
        // never offer implementation items for system headers
        // TODO: also filter out non-system files unrelated to the current file
        //       e.g. based on the path or similar
        return CXChildVisit_Continue;
    }
    CXFile file = nullptr;
    clang_getFileLocation(location, &file, nullptr, nullptr, nullptr);
    if (!data->fileFilter.contains(file)) {
        return CXChildVisit_Continue;
    }

    //Recurse into cursors which could contain a function declaration
    if (ClangUtils::isScopeKind(kind)) {

        //Don't enter a scope that branches from the origin's scope
        if (data->depth < data->originScope.count() &&
            !clang_equalCursors(cursor, data->originScope.at(data->depth))) {
            return CXChildVisit_Continue;
        }

        // we must not declare a function outside of its anonymous namespace, so
        // don't recurse into anonymous namespaces if we are not in one already
        if (kind == CXCursor_Namespace && !clang_equalCursors(data->origin, cursor) && ClangString(clang_getCursorDisplayName(cursor)).isEmpty()) {
            return CXChildVisit_Continue;
        }

        QString templatePrefix;
        if (data->depth >= data->originScope.count()) {
            if (kind == CXCursor_ClassTemplate || kind == CXCursor_ClassTemplatePartialSpecialization) {
                //If we're at a template, we need to construct the template<typename T1, typename T2>
                //which goes at the front of the prototype
                const QStringList templateTypes = templateParams(kind == CXCursor_ClassTemplate ? cursor : clang_getSpecializedCursorTemplate(cursor));

                templatePrefix = QLatin1String("template<") + templateTypes.join(QLatin1String(", ")) + QLatin1String("> ");
            }
        }

        ImplementsInfo info{data->origin, data->top, data->prototypes, data->originScope,
                            data->fileFilter,
                            data->depth + 1,
                            data->templatePrefix + templatePrefix};
        clang_visitChildren(cursor, declVisitor, &info);

        return CXChildVisit_Continue;
    }

    if (data->depth < data->originScope.count()) {
        return CXChildVisit_Continue;
    }

    //If the current cursor is not a function or if it is already defined, there's nothing to do here