522 lines
15 KiB
C++
522 lines
15 KiB
C++
/**
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* Parses training_area_telegrams.h
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* $Id$
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* $HeadURL$
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* $Author$
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* Created by Christian Ehrlicher, SLSE, 2016-04-14
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*/
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#include "LogViewTetraTelegramsParser.hpp"
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#include <QFile>
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#include <QVector>
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namespace N_LogView
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{
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LogViewTetraTelegramsParser::LogViewTetraTelegramsParser()
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: m_logger(getLogger("LogViewTetraTelegramsParser"))
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{
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insertPod(QStringLiteral("bool"), 1, true, true, true);
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insertPod(QStringLiteral("int"), 4, true, true);
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insertPod(QStringLiteral("int32_t"), 4, true, true);
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insertPod(QStringLiteral("qint64"), 8, true, true);
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insertPod(QStringLiteral("float"), 4, true, false);
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insertPod(QStringLiteral("double"), 8, true, false);
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}
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EnumInformation LogViewTetraTelegramsParser::enumFromType(const QString &type) const
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{
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for (const auto &ei : m_enums)
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{
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const QString fqType = ei.ns.isEmpty() ? ei.type : (ei.ns + QStringLiteral("::") + ei.type);
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if (fqType == type)
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return ei;
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}
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return EnumInformation();
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}
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StructInformation LogViewTetraTelegramsParser::structFromType(const QString &type) const
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{
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return m_structs.value(type);
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}
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PodInformation LogViewTetraTelegramsParser::podFromType(const QString &type) const
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{
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return m_pods.value(type);
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}
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bool LogViewTetraTelegramsParser::isEnum(const QString &type) const
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{
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for (const auto &ei : m_enums)
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if (ei.type == type)
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return true;
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return false;
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}
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bool LogViewTetraTelegramsParser::isStruct(const QString &type) const
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{
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return m_structs.contains(type);
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}
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bool LogViewTetraTelegramsParser::isPod(const QString &type) const
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{
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return m_pods.contains(type);
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}
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static void fillBasemembers(StructInformation &si, const QHash<QString, StructInformation> &structs)
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{
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if (si.baseStruct.isEmpty())
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return;
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StructInformation base = structs.value(si.baseStruct);
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fillBasemembers(base, structs);
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si.member = (base.member + si.member); // base first
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}
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bool LogViewTetraTelegramsParser::parse(const QString &filename)
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{
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m_telegramIdEnum = EnumInformation();
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m_enums.clear();
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m_structs.clear();
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//m_pods.clear(); // only set once
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m_visibleTelegrams.clear();
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QFile f(filename);
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if (!f.open(QIODevice::ReadOnly))
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{
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WARNING_LOG(m_logger) << "Can not open file " << filename << " for reading: " << f.errorString();
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return false;
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}
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const QString content = QString::fromUtf8(f.readAll());
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f.close();
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const QVector<QStringRef> lines = content.splitRef(QLatin1Char('\n'));
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QVector<QStringRef> linesTrimmed;
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linesTrimmed.reserve(lines.size());
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for (const QStringRef &line : lines)
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linesTrimmed += line.trimmed();
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int i = 0;
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while (i < linesTrimmed.size())
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{
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const QStringRef &line = linesTrimmed.at(i);
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if (line.startsWith(QLatin1String("struct")))
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{
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i = parseStruct(linesTrimmed, i);
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if (i < 0)
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return false;
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}
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else if (line.startsWith(QLatin1String("enum")))
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{
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i = parseEnum(linesTrimmed, i, QString());
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if (i < 0)
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return false;
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}
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else if (line.startsWith(QLatin1String("template <> struct Constraints")))
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{
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i = parseConstraint(linesTrimmed, i);
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if (i < 0)
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return false;
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}
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++i;
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}
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const auto completeStructs = m_structs;
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for (StructInformation &si : m_structs)
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fillBasemembers(si, completeStructs);
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return true;
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}
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void LogViewTetraTelegramsParser::insertPod(const QString &type, int byteLen, bool isSigned, bool isIntegral, bool isBoolean)
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{
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PodInformation pod;
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pod.type = type;
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pod.byteLen = byteLen;
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pod.isBoolean = isBoolean;
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pod.isIntegral = isIntegral;
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pod.isSigned = isSigned;
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m_pods[type] = pod;
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}
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int LogViewTetraTelegramsParser::parseStruct(const QVector<QStringRef> &lines, int iStartPos)
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{
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const QVector<QStringRef> tokens = tokenize(lines.at(iStartPos));
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if (tokens.size() < 2)
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return -1;
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const QStringRef &structType = tokens.at(1);
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if (structType.endsWith(QLatin1Char(';'))) // forward decl
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return iStartPos; // move to next line
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StructInformation si;
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si.type = structType.toString();
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if (tokens.size() > 2)
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{
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if (tokens.at(2) != QLatin1String(":"))
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{
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WARNING_LOG(m_logger) << "Could not parse struct: '" << lines.at(iStartPos).toString() << "', line: " << iStartPos + 1;
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return -1;
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}
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for (int i = 3; i < tokens.size(); ++i)
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{
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if (!si.baseStruct.isEmpty())
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{
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WARNING_LOG(m_logger) << "Could not parse struct: '" << lines.at(iStartPos).toString() << "', line: " << iStartPos + 1;
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return -1;
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}
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QStringRef base = tokens.at(i);
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if (base == QLatin1String("public") ||
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base == QLatin1String("protected") ||
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base == QLatin1String("private"))
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continue;
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if (base.endsWith(QLatin1Char(',')))
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base.chop(1);
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if (base.endsWith(QLatin1Char('>'))) // helper template - ignore
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{
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si.isVisible = true;
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continue;
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}
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si.baseStruct = tokens.at(i).toString();
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}
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}
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int i = iStartPos + 1;
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while (i < lines.size())
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{
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const QVector<QStringRef> tokens = tokenize(lines.at(i));
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if (!validStructTokens(tokens))
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{
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++i;
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continue;
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}
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if (tokens.at(0) == QLatin1String("};"))
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break;
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if (tokens.at(0) == QLatin1String("enum"))
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{
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i = parseEnum(lines, i, si.type, &si);
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if (i < 0)
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return -1;
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++i;
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continue;
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}
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MemberInformation mi;
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if (tokens.size() > 2)
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{
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const int parserCommentPos = tokens.at(2) == QLatin1String("=") ? 4 : 2;
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if (tokens.size() > parserCommentPos)
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{
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const QStringRef &comment = tokens.at(parserCommentPos);
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DEBUG_LOG(m_logger) << "comment: " << comment.toString();
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if (comment.startsWith(QLatin1String("//@array: ")))
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{
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const QStringRef hint = comment.mid(QLatin1String("//@array: ").size());
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QString structStr = QLatin1String("struct ") + si.type + QLatin1String("::") + tokens.at(0).toString() + QLatin1Char('\n') + hint.toString();
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structStr.replace(QLatin1Char(';'), QLatin1String(";\n"));
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DEBUG_LOG(m_logger) << "structStr: " << structStr;
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parseStruct(structStr.splitRef(QLatin1Char('\n')), 0);
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mi.type = si.type + QLatin1String("::") + tokens.at(0).toString();
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mi.isArray = true;
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}
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if (comment == QLatin1String("//@invisible"))
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mi.isVisible = false;
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}
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}
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QStringRef name = tokens.at(1);
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if (name.endsWith(QLatin1Char(';')))
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name.chop(1);
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if (mi.type.isEmpty())
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mi.type += tokens.at(0).toString();
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categorizeMember(mi);
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mi.name = name.toString();
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if (mi.isEnum && !mi.type.contains(QLatin1String("::")))
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{
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// fixup ns
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for (const auto &ei : qAsConst(m_enums))
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{
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if (ei.type == mi.type)
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{
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if (!ei.ns.isEmpty())
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mi.type = ei.ns + QLatin1String("::") + mi.type;
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break;
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}
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}
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}
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si.member.push_back(std::move(mi));
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++i;
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}
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if (m_logger.isDebugEnabled())
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{
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if (si.baseStruct.isEmpty())
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DEBUG_LOG(m_logger) << "Found Struct: " << si.type;
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else
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DEBUG_LOG(m_logger) << "Found Struct: " << si.type << ", base: " << si.baseStruct;
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for (int j = 0; j < si.member.size(); ++j)
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{
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const MemberInformation &mi = si.member.at(j);
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DEBUG_LOG(m_logger) << "Member[" << j << "]: " << mi.type << " - " << mi.name;
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}
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}
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m_structs[si.type] = si;
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return i;
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}
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int LogViewTetraTelegramsParser::parseEnum(const QVector<QStringRef> &lines, int iStartPos, const QString &ns, StructInformation *si)
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{
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const QVector<QStringRef> tokens = tokenize(lines.at(iStartPos));
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if (tokens.size() < 2)
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return -1;
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QStringRef enumName = tokens.at(1);
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if (enumName == QLatin1String("class"))
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{
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if (tokens.size() < 3)
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return -1;
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enumName = tokens.at(2);
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}
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if (enumName.endsWith(QLatin1Char(';'))) // forward decl
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return iStartPos; // move to next line
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EnumInformation ei;
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ei.type = enumName.toString();
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ei.ns = ns;
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int i = iStartPos + 1;
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while (i < lines.size())
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{
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const QVector<QStringRef> tokens = tokenize(lines.at(i).split(QStringLiteral("//")).first());
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if (tokens.isEmpty() ||
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(tokens.at(0) == QLatin1String("{")))
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{
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++i;
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continue;
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}
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if (tokens.at(0) == QLatin1String("};"))
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break;
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if ((tokens.size() != 1 && tokens.size() != 3) ||
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(tokens.size() == 3 && tokens.at(1) != QLatin1String("=")))
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{
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if (tokens.size() == 4 && tokens.at(0) == QLatin1String("}") && tokens.at(3).endsWith(QLatin1Char(';')) && si)
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{
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// enum in struct with direct decl of member
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MemberInformation mi;
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if (ns.isEmpty())
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mi.type = ei.type;
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else
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mi.type = ns + QStringLiteral("::") + ei.type;
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mi.isEnum = true;
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mi.name = tokens.at(1).toString();
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si->member.push_back(std::move(mi));
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break;
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}
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WARNING_LOG(m_logger) << "Could not parse enum: '" << lines.at(i).toString() << "', line: " << i + 1;
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return -1;
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}
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EnumValue ev;
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ev.key = tokens.at(0).toString();
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if (tokens.size() == 3)
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{
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QStringRef value = tokens.at(2);
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if (value.endsWith(QLatin1Char(',')))
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value.chop(1);
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ev.value = value.toInt();
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}
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else
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{
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int val = ei.values.isEmpty() ? 0 : (ei.values.last().value + 1);
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ev.value = val;
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}
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ei.values.push_back(std::move(ev));
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++i;
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}
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DEBUG_LOG(m_logger) << "Found Enum: " << ei.type;
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for (const EnumValue &ev : qAsConst(ei.values))
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DEBUG_LOG(m_logger) << "Member[" << i << "]: " << ev.key << " = " << ev.value;
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if (ei.type == QLatin1String("TelegramId"))
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m_telegramIdEnum = ei;
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m_enums.push_back(std::move(ei));
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return i;
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}
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int LogViewTetraTelegramsParser::parseConstraint(const QVector<QStringRef> &lines, int iStartPos)
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{
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const QVector<QStringRef> tokens = tokenize(lines.at(iStartPos));
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if (tokens.size() != 4)
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{
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WARNING_LOG(m_logger) << "Could not parse constraint: '" << lines.at(iStartPos).toString() << "'";
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return -1;
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}
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const QStringRef &cs = tokens.at(3);
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if (!cs.startsWith(QLatin1String("Constraints<")) || !cs.endsWith(QLatin1Char('>')))
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{
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WARNING_LOG(m_logger) << "Could not parse constraint: '" << lines.at(iStartPos).toString() << "'";
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return -1;
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}
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QStringRef structName = cs.mid(QLatin1String("Constraints<").size());
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structName.chop(1);
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DEBUG_LOG(m_logger) << "Constraint: " << structName.toString();
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int i = iStartPos + 1;
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while (i < lines.size())
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{
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const QVector<QStringRef> tokens = tokenize(lines.at(i));
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if (tokens.isEmpty() ||
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(tokens.at(0) == QLatin1String("{")))
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{
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++i;
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continue;
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}
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if (tokens.at(0) == QLatin1String("};"))
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break;
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if (tokens.size() != 8 || tokens.at(2) != QLatin1String("TelegramId")) // static constexpr TelegramId id() { return TelegramId::INIT; }
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{
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++i;
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continue;
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}
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const QVector<QStringRef> parts = tokens.at(6).split(QLatin1String("::"));
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if (parts.size() != 2)
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{
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WARNING_LOG(m_logger) << "Could not parse constraint: '" << lines.at(i).toString() << "'";
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return -1;
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}
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QStringRef enumKey = parts.at(1);
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if (enumKey.endsWith(QLatin1Char(';')))
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enumKey.chop(1);
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bool bFound = false;
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for (const auto &v : qAsConst(m_telegramIdEnum.values))
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{
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if (v.key == enumKey)
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{
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m_visibleTelegrams.insert(v.value, structName.toString());
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bFound = true;
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break;
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}
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}
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if (!bFound)
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{
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WARNING_LOG(m_logger) << "Could not find enum value '" << enumKey.toString() << "' in enum TelegramId";
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return -1;
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}
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++i;
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}
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return i;
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}
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QString LogViewTetraTelegramsParser::getInnerType(const QString &type)
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{
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int idxLt = type.lastIndexOf(QLatin1Char('>'));
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if (idxLt < 0)
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return QString();
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int idxGt = type.indexOf(QLatin1Char('<'));
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if (idxGt < 0)
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return QString();
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return type.mid(idxGt + 1, idxLt - idxGt - 1);
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}
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void LogViewTetraTelegramsParser::categorizeMember(MemberInformation &mi) const
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{
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mi.isPod = isPod(mi.type);
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mi.isEnum = mi.isPod ? false : isEnum(mi.type);
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if (mi.type.startsWith(QLatin1String("std::vector<")))
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mi.isArray = true;
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mi.isStruct = mi.isArray ? false : isStruct(mi.type);
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mi.isString = (mi.type == QLatin1String("std::string") || mi.type == QLatin1String("QString"));
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mi.isBinary = (mi.type == QLatin1String("std::vector<unsigned char>") || mi.type == QLatin1String("QByteArray"));
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}
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static inline void bracketCount(const QStringRef &str, int &cntLt, int &cntGt)
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{
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cntLt = 0;
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cntGt = 0;
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for (int i = 0; i < str.size(); ++i)
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{
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if (str.at(i) == QLatin1Char('<'))
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cntLt++;
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else if (str.at(i) == QLatin1Char('>'))
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cntGt++;
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}
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}
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QVector<QStringRef> LogViewTetraTelegramsParser::tokenize(const QStringRef &line) const
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{
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QVector<QStringRef> ret = line.split(QLatin1Char(' '), QString::SkipEmptyParts);
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int i = 0;
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while (i < ret.size())
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{
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const QStringRef &token = ret.at(i);
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if (token.startsWith(QLatin1String("//")))
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{
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// all comment after this - merge into one
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if (i == ret.size() - 1)
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break;
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const QStringRef &lastToken = ret.last();
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const QStringRef newToken = QStringRef(token.string(), token.position(), lastToken.position() - token.position() + lastToken.size());
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DEBUG_LOG(m_logger) << "New Token: " << newToken.toString();
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ret.resize(i + 1);
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ret[i] = newToken;
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break;
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}
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if (i == ret.size() - 1)
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break;
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int cntLt;
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int cntGt;
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bracketCount(token, cntLt, cntGt);
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if (cntLt == cntGt)
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{
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++i;
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continue;
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}
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const QStringRef &nextToken = ret.at(i + 1);
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const QStringRef newToken = QStringRef(token.string(), token.position(), nextToken.position() - token.position() + nextToken.size());
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DEBUG_LOG(m_logger) << "New Token: " << newToken.toString();
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ret.removeAt(i + 1);
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ret[i] = newToken;
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}
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return ret;
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}
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bool LogViewTetraTelegramsParser::validStructTokens(const QVector<QStringRef> &tokens)
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{
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if (tokens.isEmpty() ||
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(tokens.at(0) == QLatin1String("{")) ||
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(tokens.at(0) == QLatin1String("{}")) ||
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(tokens.at(0) == QLatin1String("}")) ||
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(tokens.at(0) == QLatin1String(":")) ||
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(tokens.at(0) == QLatin1String(",")) ||
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(tokens.at(0) == QLatin1String("virtual")))
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return false;
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|
if (tokens.at(0) == QLatin1String("};") || tokens.at(0) == QLatin1String("enum"))
|
|
return true;
|
|
|
|
const int len = tokens.last().startsWith(QLatin1String("//")) ? tokens.size() - 1 : tokens.size();
|
|
|
|
if (len == 2)
|
|
return true;
|
|
|
|
if (len < 4)
|
|
return false;
|
|
|
|
if (len >= 4 && tokens.at(2) == QLatin1String("="))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
} // namespace N_LogView
|