1951 lines
69 KiB
C++
1951 lines
69 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2022 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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//---------------------------------------------------------------------------
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#include "tokenlist.h"
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#include "astutils.h"
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#include "errorlogger.h"
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#include "errortypes.h"
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#include "library.h"
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#include "path.h"
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#include "settings.h"
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#include "standards.h"
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#include "token.h"
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#include <algorithm>
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#include <cctype>
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#include <cstring>
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#include <exception>
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#include <functional>
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#include <utility>
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#include <set>
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#include <stack>
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#include <simplecpp.h>
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// How many compileExpression recursions are allowed?
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// For practical code this could be endless. But in some special torture test
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// there needs to be a limit.
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static const int AST_MAX_DEPTH = 100;
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TokenList::TokenList(const Settings* settings) :
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mTokensFrontBack(),
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mSettings(settings),
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mIsC(false),
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mIsCpp(false)
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{
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mTokensFrontBack.list = this;
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mKeywords.insert("auto");
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mKeywords.insert("break");
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mKeywords.insert("case");
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//mKeywords.insert("char"); // type
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mKeywords.insert("const");
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mKeywords.insert("continue");
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mKeywords.insert("default");
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mKeywords.insert("do");
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//mKeywords.insert("double"); // type
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mKeywords.insert("else");
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mKeywords.insert("enum");
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mKeywords.insert("extern");
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//mKeywords.insert("float"); // type
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mKeywords.insert("for");
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mKeywords.insert("goto");
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mKeywords.insert("if");
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mKeywords.insert("inline");
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//mKeywords.insert("int"); // type
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//mKeywords.insert("long"); // type
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mKeywords.insert("register");
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mKeywords.insert("restrict");
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mKeywords.insert("return");
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//mKeywords.insert("short"); // type
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mKeywords.insert("signed");
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mKeywords.insert("sizeof");
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mKeywords.insert("static");
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mKeywords.insert("struct");
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mKeywords.insert("switch");
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mKeywords.insert("typedef");
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mKeywords.insert("union");
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mKeywords.insert("unsigned");
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mKeywords.insert("void");
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mKeywords.insert("volatile");
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mKeywords.insert("while");
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}
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TokenList::~TokenList()
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{
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deallocateTokens();
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}
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//---------------------------------------------------------------------------
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const std::string& TokenList::getSourceFilePath() const
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{
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if (getFiles().empty()) {
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return emptyString;
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}
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return getFiles()[0];
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}
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//---------------------------------------------------------------------------
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// Deallocate lists..
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void TokenList::deallocateTokens()
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{
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deleteTokens(mTokensFrontBack.front);
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mTokensFrontBack.front = nullptr;
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mTokensFrontBack.back = nullptr;
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mFiles.clear();
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}
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void TokenList::determineCppC()
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{
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if (!mSettings) {
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mIsC = Path::isC(getSourceFilePath());
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mIsCpp = Path::isCPP(getSourceFilePath());
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} else {
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mIsC = mSettings->enforcedLang == Settings::C || (mSettings->enforcedLang == Settings::None && Path::isC(getSourceFilePath()));
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mIsCpp = mSettings->enforcedLang == Settings::CPP || (mSettings->enforcedLang == Settings::None && Path::isCPP(getSourceFilePath()));
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}
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if (mIsCpp) {
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//mKeywords.insert("bool"); // type
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mKeywords.insert("catch");
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mKeywords.insert("class");
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mKeywords.insert("constexpr");
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mKeywords.insert("const_cast");
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mKeywords.insert("decltype");
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mKeywords.insert("delete");
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mKeywords.insert("dynamic_cast");
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mKeywords.insert("explicit");
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mKeywords.insert("export");
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//mKeywords.insert("false"); // literal
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mKeywords.insert("friend");
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mKeywords.insert("mutable");
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mKeywords.insert("namespace");
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mKeywords.insert("new");
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mKeywords.insert("noexcept");
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mKeywords.insert("operator");
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mKeywords.insert("private");
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mKeywords.insert("protected");
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mKeywords.insert("public");
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mKeywords.insert("reinterpret_cast");
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mKeywords.insert("static_assert");
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mKeywords.insert("static_cast");
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mKeywords.insert("template");
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mKeywords.insert("this");
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mKeywords.insert("thread_local");
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mKeywords.insert("throw");
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//mKeywords.insert("true"); // literal
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mKeywords.insert("try");
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mKeywords.insert("typeid");
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mKeywords.insert("typename");
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mKeywords.insert("typeof");
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mKeywords.insert("using");
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mKeywords.insert("virtual");
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//mKeywords.insert("wchar_t"); // type
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if (!mSettings || mSettings->standards.cpp >= Standards::CPP20) {
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mKeywords.insert("alignas");
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mKeywords.insert("alignof");
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mKeywords.insert("axiom");
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mKeywords.insert("co_await");
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mKeywords.insert("co_return");
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mKeywords.insert("co_yield");
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mKeywords.insert("concept");
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mKeywords.insert("synchronized");
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mKeywords.insert("consteval");
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mKeywords.insert("reflexpr");
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mKeywords.insert("requires");
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}
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}
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}
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int TokenList::appendFileIfNew(const std::string &fileName)
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{
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// Has this file been tokenized already?
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for (int i = 0; i < mFiles.size(); ++i)
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if (Path::sameFileName(mFiles[i], fileName))
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return i;
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// The "mFiles" vector remembers what files have been tokenized..
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mFiles.push_back(fileName);
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// Update mIsC and mIsCpp properties
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if (mFiles.size() == 1) { // Update only useful if first file added to _files
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determineCppC();
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}
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return mFiles.size() - 1;
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}
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void TokenList::clangSetOrigFiles()
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{
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mOrigFiles = mFiles;
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}
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void TokenList::deleteTokens(Token *tok)
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{
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while (tok) {
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Token *next = tok->next();
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delete tok;
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tok = next;
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}
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}
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//---------------------------------------------------------------------------
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// add a token.
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//---------------------------------------------------------------------------
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void TokenList::addtoken(std::string str, const nonneg int lineno, const nonneg int column, const nonneg int fileno, bool split)
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{
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if (str.empty())
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return;
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// If token contains # characters, split it up
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if (split) {
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size_t begin = 0;
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size_t end = 0;
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while ((end = str.find("##", begin)) != std::string::npos) {
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addtoken(str.substr(begin, end - begin), lineno, fileno, false);
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addtoken("##", lineno, column, fileno, false);
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begin = end+2;
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}
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if (begin != 0) {
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addtoken(str.substr(begin), lineno, column, fileno, false);
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return;
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}
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}
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if (mTokensFrontBack.back) {
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mTokensFrontBack.back->insertToken(str);
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} else {
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mTokensFrontBack.front = new Token(&mTokensFrontBack);
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mTokensFrontBack.back = mTokensFrontBack.front;
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mTokensFrontBack.back->str(str);
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}
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mTokensFrontBack.back->linenr(lineno);
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mTokensFrontBack.back->column(column);
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mTokensFrontBack.back->fileIndex(fileno);
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}
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void TokenList::addtoken(std::string str, const Token *locationTok)
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{
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if (str.empty())
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return;
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if (mTokensFrontBack.back) {
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mTokensFrontBack.back->insertToken(str);
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} else {
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mTokensFrontBack.front = new Token(&mTokensFrontBack);
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mTokensFrontBack.back = mTokensFrontBack.front;
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mTokensFrontBack.back->str(str);
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}
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mTokensFrontBack.back->linenr(locationTok->linenr());
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mTokensFrontBack.back->column(locationTok->column());
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mTokensFrontBack.back->fileIndex(locationTok->fileIndex());
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}
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void TokenList::addtoken(const Token * tok, const nonneg int lineno, const nonneg int column, const nonneg int fileno)
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{
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if (tok == nullptr)
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return;
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if (mTokensFrontBack.back) {
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mTokensFrontBack.back->insertToken(tok->str(), tok->originalName());
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} else {
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mTokensFrontBack.front = new Token(&mTokensFrontBack);
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mTokensFrontBack.back = mTokensFrontBack.front;
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mTokensFrontBack.back->str(tok->str());
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if (!tok->originalName().empty())
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mTokensFrontBack.back->originalName(tok->originalName());
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}
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mTokensFrontBack.back->linenr(lineno);
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mTokensFrontBack.back->column(column);
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mTokensFrontBack.back->fileIndex(fileno);
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mTokensFrontBack.back->flags(tok->flags());
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}
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void TokenList::addtoken(const Token *tok, const Token *locationTok)
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{
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if (tok == nullptr || locationTok == nullptr)
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return;
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if (mTokensFrontBack.back) {
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mTokensFrontBack.back->insertToken(tok->str(), tok->originalName());
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} else {
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mTokensFrontBack.front = new Token(&mTokensFrontBack);
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mTokensFrontBack.back = mTokensFrontBack.front;
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mTokensFrontBack.back->str(tok->str());
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if (!tok->originalName().empty())
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mTokensFrontBack.back->originalName(tok->originalName());
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}
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mTokensFrontBack.back->flags(tok->flags());
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mTokensFrontBack.back->linenr(locationTok->linenr());
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mTokensFrontBack.back->column(locationTok->column());
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mTokensFrontBack.back->fileIndex(locationTok->fileIndex());
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}
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void TokenList::addtoken(const Token *tok)
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{
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if (tok == nullptr)
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return;
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if (mTokensFrontBack.back) {
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mTokensFrontBack.back->insertToken(tok->str(), tok->originalName());
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} else {
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mTokensFrontBack.front = new Token(&mTokensFrontBack);
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mTokensFrontBack.back = mTokensFrontBack.front;
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mTokensFrontBack.back->str(tok->str());
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if (!tok->originalName().empty())
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mTokensFrontBack.back->originalName(tok->originalName());
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}
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mTokensFrontBack.back->flags(tok->flags());
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mTokensFrontBack.back->linenr(tok->linenr());
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mTokensFrontBack.back->column(tok->column());
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mTokensFrontBack.back->fileIndex(tok->fileIndex());
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}
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//---------------------------------------------------------------------------
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// copyTokens - Copy and insert tokens
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//---------------------------------------------------------------------------
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Token *TokenList::copyTokens(Token *dest, const Token *first, const Token *last, bool one_line)
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{
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std::stack<Token *> links;
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Token *tok2 = dest;
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int linenr = dest->linenr();
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const int commonFileIndex = dest->fileIndex();
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for (const Token *tok = first; tok != last->next(); tok = tok->next()) {
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tok2->insertToken(tok->str());
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tok2 = tok2->next();
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tok2->fileIndex(commonFileIndex);
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tok2->linenr(linenr);
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tok2->tokType(tok->tokType());
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tok2->flags(tok->flags());
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tok2->varId(tok->varId());
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// Check for links and fix them up
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if (Token::Match(tok2, "(|[|{"))
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links.push(tok2);
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else if (Token::Match(tok2, ")|]|}")) {
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if (links.empty())
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return tok2;
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Token * link = links.top();
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tok2->link(link);
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link->link(tok2);
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links.pop();
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}
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if (!one_line && tok->next())
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linenr += tok->next()->linenr() - tok->linenr();
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}
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return tok2;
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}
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//---------------------------------------------------------------------------
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// InsertTokens - Copy and insert tokens
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//---------------------------------------------------------------------------
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void TokenList::insertTokens(Token *dest, const Token *src, nonneg int n)
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{
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std::stack<Token *> link;
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while (n > 0) {
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dest->insertToken(src->str(), src->originalName());
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dest = dest->next();
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// Set links
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if (Token::Match(dest, "(|[|{"))
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link.push(dest);
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else if (!link.empty() && Token::Match(dest, ")|]|}")) {
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Token::createMutualLinks(dest, link.top());
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link.pop();
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}
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dest->fileIndex(src->fileIndex());
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dest->linenr(src->linenr());
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dest->column(src->column());
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dest->varId(src->varId());
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dest->tokType(src->tokType());
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dest->flags(src->flags());
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src = src->next();
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--n;
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}
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}
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//---------------------------------------------------------------------------
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// Tokenize - tokenizes a given file.
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//---------------------------------------------------------------------------
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bool TokenList::createTokens(std::istream &code, const std::string& file0)
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{
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appendFileIfNew(file0);
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simplecpp::OutputList outputList;
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simplecpp::TokenList tokens(code, mFiles, file0, &outputList);
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createTokens(std::move(tokens));
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return outputList.empty();
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}
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//---------------------------------------------------------------------------
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void TokenList::createTokens(simplecpp::TokenList&& tokenList)
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{
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if (tokenList.cfront())
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mOrigFiles = mFiles = tokenList.cfront()->location.files;
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else
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mFiles.clear();
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determineCppC();
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for (const simplecpp::Token *tok = tokenList.cfront(); tok;) {
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std::string str = tok->str();
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// Float literal
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if (str.size() > 1 && str[0] == '.' && std::isdigit(str[1]))
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str = '0' + str;
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if (mTokensFrontBack.back) {
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mTokensFrontBack.back->insertToken(str);
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} else {
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mTokensFrontBack.front = new Token(&mTokensFrontBack);
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mTokensFrontBack.back = mTokensFrontBack.front;
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mTokensFrontBack.back->str(str);
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}
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mTokensFrontBack.back->fileIndex(tok->location.fileIndex);
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mTokensFrontBack.back->linenr(tok->location.line);
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mTokensFrontBack.back->column(tok->location.col);
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mTokensFrontBack.back->isExpandedMacro(!tok->macro.empty());
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tok = tok->next;
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if (tok)
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tokenList.deleteToken(tok->previous);
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}
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if (mSettings && mSettings->relativePaths) {
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for (std::string & mFile : mFiles)
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mFile = Path::getRelativePath(mFile, mSettings->basePaths);
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}
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Token::assignProgressValues(mTokensFrontBack.front);
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}
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//---------------------------------------------------------------------------
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unsigned long long TokenList::calculateChecksum() const
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{
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unsigned long long checksum = 0;
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for (const Token* tok = front(); tok; tok = tok->next()) {
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const unsigned int subchecksum1 = tok->flags() + tok->varId() + tok->tokType();
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unsigned int subchecksum2 = 0;
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for (char i : tok->str())
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subchecksum2 += (unsigned int)i;
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if (!tok->originalName().empty()) {
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for (char i : tok->originalName())
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subchecksum2 += (unsigned int) i;
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}
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checksum ^= ((static_cast<unsigned long long>(subchecksum1) << 32) | subchecksum2);
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const bool bit1 = (checksum & 1) != 0;
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checksum >>= 1;
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if (bit1)
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checksum |= (1ULL << 63);
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}
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return checksum;
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}
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//---------------------------------------------------------------------------
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struct AST_state {
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std::stack<Token*> op;
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int depth;
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int inArrayAssignment;
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bool cpp;
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int assign;
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bool inCase; // true from case to :
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bool stopAtColon; // help to properly parse ternary operators
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const Token *functionCallEndPar;
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explicit AST_state(bool cpp) : depth(0), inArrayAssignment(0), cpp(cpp), assign(0), inCase(false),stopAtColon(false), functionCallEndPar(nullptr) {}
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};
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static Token* skipDecl(Token* tok, std::vector<Token*>* inner = nullptr)
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{
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if (!Token::Match(tok->previous(), "( %name%"))
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return tok;
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Token *vartok = tok;
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while (Token::Match(vartok, "%name%|*|&|::|<")) {
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if (vartok->str() == "<") {
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if (vartok->link())
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vartok = vartok->link();
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else
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return tok;
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} else if (Token::Match(vartok, "%var% [:=(]")) {
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return vartok;
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} else if (Token::Match(vartok, "decltype|typeof (") && !Token::Match(tok->linkAt(1), ") [,)]")) {
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if (inner)
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inner->push_back(vartok->tokAt(2));
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return vartok->linkAt(1)->next();
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}
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vartok = vartok->next();
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}
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return tok;
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}
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static bool iscast(const Token *tok, bool cpp)
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{
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if (!Token::Match(tok, "( ::| %name%"))
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return false;
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if (Token::simpleMatch(tok->link(), ") ( )"))
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return false;
|
|
|
|
if (tok->previous() && tok->previous()->isName() && tok->previous()->str() != "return" &&
|
|
(!cpp || !Token::Match(tok->previous(), "delete|throw")))
|
|
return false;
|
|
|
|
if (Token::simpleMatch(tok->previous(), ">") && tok->previous()->link())
|
|
return false;
|
|
|
|
if (Token::Match(tok, "( (| typeof (") && Token::Match(tok->link(), ") %num%"))
|
|
return true;
|
|
|
|
if (Token::Match(tok->link(), ") }|)|]|;"))
|
|
return false;
|
|
|
|
if (Token::Match(tok->link(), ") %cop%") && !Token::Match(tok->link(), ") [&*+-~!]"))
|
|
return false;
|
|
|
|
if (Token::Match(tok->previous(), "= ( %name% ) {") && tok->next()->varId() == 0)
|
|
return true;
|
|
|
|
bool type = false;
|
|
for (const Token *tok2 = tok->next(); tok2; tok2 = tok2->next()) {
|
|
if (tok2->varId() != 0)
|
|
return false;
|
|
|
|
while (tok2->link() && Token::Match(tok2, "(|[|<"))
|
|
tok2 = tok2->link()->next();
|
|
|
|
if (tok2->str() == ")") {
|
|
if (Token::simpleMatch(tok2, ") (") && Token::simpleMatch(tok2->linkAt(1), ") ."))
|
|
return true;
|
|
if (Token::simpleMatch(tok2, ") {") && !type) {
|
|
const Token *tok3 = tok2->linkAt(1);
|
|
while (tok3 != tok2 && Token::Match(tok3, "[{}]"))
|
|
tok3 = tok3->previous();
|
|
return tok3 != tok2 && tok3->str() != ";";
|
|
}
|
|
return type || tok2->strAt(-1) == "*" || Token::simpleMatch(tok2, ") ~") ||
|
|
(Token::Match(tok2, ") %any%") &&
|
|
(!tok2->next()->isOp() || Token::Match(tok2->next(), "!|~|++|--")) &&
|
|
!Token::Match(tok2->next(), "[[]);,?:.]"));
|
|
}
|
|
|
|
if (Token::Match(tok2, "&|&& )"))
|
|
return true;
|
|
|
|
if (!Token::Match(tok2, "%name%|*|::"))
|
|
return false;
|
|
|
|
if (tok2->isStandardType() && (tok2->next()->str() != "(" || Token::Match(tok2->next(), "( * *| )")))
|
|
type = true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// int(1), int*(2), ..
|
|
static Token * findCppTypeInitPar(Token *tok)
|
|
{
|
|
if (!tok || !Token::Match(tok->previous(), "[,()] %name%"))
|
|
return nullptr;
|
|
bool istype = false;
|
|
while (Token::Match(tok, "%name%|::|<")) {
|
|
if (tok->str() == "<") {
|
|
tok = tok->link();
|
|
if (!tok)
|
|
return nullptr;
|
|
}
|
|
istype |= tok->isStandardType();
|
|
tok = tok->next();
|
|
}
|
|
if (!istype)
|
|
return nullptr;
|
|
if (!Token::Match(tok, "[*&]"))
|
|
return nullptr;
|
|
while (Token::Match(tok, "[*&]"))
|
|
tok = tok->next();
|
|
return (tok && tok->str() == "(") ? tok : nullptr;
|
|
}
|
|
|
|
// X{} X<Y>{} etc
|
|
static bool iscpp11init_impl(const Token * const tok);
|
|
static bool iscpp11init(const Token * const tok)
|
|
{
|
|
if (tok->isCpp11init() == TokenImpl::Cpp11init::UNKNOWN)
|
|
tok->setCpp11init(iscpp11init_impl(tok));
|
|
return tok->isCpp11init() == TokenImpl::Cpp11init::CPP11INIT;
|
|
}
|
|
|
|
static bool iscpp11init_impl(const Token * const tok)
|
|
{
|
|
if (Token::simpleMatch(tok, "{") && Token::simpleMatch(tok->link()->previous(), "; }"))
|
|
return false;
|
|
const Token *nameToken = tok;
|
|
while (nameToken && nameToken->str() == "{") {
|
|
if (nameToken->isCpp11init() != TokenImpl::Cpp11init::UNKNOWN)
|
|
return nameToken->isCpp11init() == TokenImpl::Cpp11init::CPP11INIT;
|
|
nameToken = nameToken->previous();
|
|
if (nameToken && nameToken->str() == "," && Token::simpleMatch(nameToken->previous(), "} ,"))
|
|
nameToken = nameToken->linkAt(-1);
|
|
}
|
|
if (!nameToken)
|
|
return false;
|
|
if (nameToken->str() == ")" && Token::simpleMatch(nameToken->link()->previous(), "decltype ("))
|
|
return true;
|
|
if (Token::simpleMatch(nameToken, ", {"))
|
|
return true;
|
|
if (nameToken->str() == ">" && nameToken->link())
|
|
nameToken = nameToken->link()->previous();
|
|
|
|
const Token *endtok = nullptr;
|
|
if (Token::Match(nameToken, "%name%|return|: {") &&
|
|
(!Token::simpleMatch(nameToken->tokAt(2), "[") || findLambdaEndScope(nameToken->tokAt(2))))
|
|
endtok = nameToken->linkAt(1);
|
|
else if (Token::Match(nameToken,"%name% <") && Token::simpleMatch(nameToken->linkAt(1),"> {"))
|
|
endtok = nameToken->linkAt(1)->linkAt(1);
|
|
else if (Token::Match(nameToken->previous(), "%name% ( {"))
|
|
endtok = nameToken->linkAt(1);
|
|
else
|
|
return false;
|
|
if (Token::Match(nameToken, "else|try|do|const|constexpr|override|volatile|&|&&"))
|
|
return false;
|
|
if (Token::simpleMatch(nameToken->previous(), "namespace"))
|
|
return false;
|
|
if (Token::Match(nameToken, "%any% {") && !Token::Match(nameToken, "return|:")) {
|
|
// If there is semicolon between {..} this is not a initlist
|
|
for (const Token *tok2 = nameToken->next(); tok2 != endtok; tok2 = tok2->next()) {
|
|
if (tok2->str() == ";")
|
|
return false;
|
|
const Token * lambdaEnd = findLambdaEndScope(tok2);
|
|
if (lambdaEnd)
|
|
tok2 = lambdaEnd;
|
|
}
|
|
}
|
|
// There is no initialisation for example here: 'class Fred {};'
|
|
if (!Token::simpleMatch(endtok, "} ;"))
|
|
return true;
|
|
const Token *prev = nameToken;
|
|
while (Token::Match(prev, "%name%|::|:|<|>")) {
|
|
if (Token::Match(prev, "class|struct"))
|
|
return false;
|
|
|
|
prev = prev->previous();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool isQualifier(const Token* tok)
|
|
{
|
|
while (Token::Match(tok, "&|&&|*"))
|
|
tok = tok->next();
|
|
if (!Token::Match(tok, "{|;"))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static void compileUnaryOp(Token *&tok, AST_state& state, void (*f)(Token *&tok, AST_state& state))
|
|
{
|
|
Token *unaryop = tok;
|
|
if (f) {
|
|
tok = tok->next();
|
|
state.depth++;
|
|
if (state.depth > AST_MAX_DEPTH)
|
|
throw InternalError(tok, "maximum AST depth exceeded", InternalError::AST);
|
|
if (tok)
|
|
f(tok, state);
|
|
state.depth--;
|
|
}
|
|
|
|
if (!state.op.empty()) {
|
|
unaryop->astOperand1(state.op.top());
|
|
state.op.pop();
|
|
}
|
|
state.op.push(unaryop);
|
|
}
|
|
|
|
static void compileBinOp(Token *&tok, AST_state& state, void (*f)(Token *&tok, AST_state& state))
|
|
{
|
|
Token *binop = tok;
|
|
if (f) {
|
|
tok = tok->next();
|
|
if (Token::Match(binop, "::|. ~"))
|
|
tok = tok->next();
|
|
state.depth++;
|
|
if (tok && state.depth <= AST_MAX_DEPTH)
|
|
f(tok, state);
|
|
state.depth--;
|
|
}
|
|
|
|
// TODO: Should we check if op is empty.
|
|
// * Is it better to add assertion that it isn't?
|
|
// * Write debug warning if it's empty?
|
|
if (!state.op.empty()) {
|
|
binop->astOperand2(state.op.top());
|
|
state.op.pop();
|
|
}
|
|
if (!state.op.empty()) {
|
|
binop->astOperand1(state.op.top());
|
|
state.op.pop();
|
|
}
|
|
state.op.push(binop);
|
|
}
|
|
|
|
static void compileExpression(Token *&tok, AST_state& state);
|
|
|
|
static void compileTerm(Token *&tok, AST_state& state)
|
|
{
|
|
if (!tok)
|
|
return;
|
|
if (Token::Match(tok, "L %str%|%char%"))
|
|
tok = tok->next();
|
|
if (state.inArrayAssignment && Token::Match(tok->previous(), "[{,] . %name%")) { // Jump over . in C style struct initialization
|
|
state.op.push(tok);
|
|
tok->astOperand1(tok->next());
|
|
tok = tok->tokAt(2);
|
|
}
|
|
if (state.inArrayAssignment && Token::Match(tok->previous(), "[{,] [ %num%|%name% ]")) {
|
|
state.op.push(tok);
|
|
tok->astOperand1(tok->next());
|
|
tok = tok->tokAt(3);
|
|
}
|
|
if (tok->isLiteral()) {
|
|
state.op.push(tok);
|
|
do {
|
|
tok = tok->next();
|
|
} while (Token::Match(tok, "%name%|%str%"));
|
|
} else if (tok->isName()) {
|
|
if (Token::Match(tok, "return|case") || (state.cpp && tok->str() == "throw")) {
|
|
if (tok->str() == "case")
|
|
state.inCase = true;
|
|
const bool tokIsReturn = tok->str() == "return";
|
|
const bool stopAtColon = state.stopAtColon;
|
|
state.stopAtColon=true;
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
state.stopAtColon=stopAtColon;
|
|
if (tokIsReturn)
|
|
state.op.pop();
|
|
if (state.inCase && Token::simpleMatch(tok, ": ;")) {
|
|
state.inCase = false;
|
|
tok = tok->next();
|
|
}
|
|
} else if (Token::Match(tok, "sizeof !!(")) {
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
state.op.pop();
|
|
} else if (state.cpp && findCppTypeInitPar(tok)) { // int(0), int*(123), ..
|
|
tok = findCppTypeInitPar(tok);
|
|
state.op.push(tok);
|
|
tok = tok->tokAt(2);
|
|
} else if (state.cpp && iscpp11init(tok)) { // X{} X<Y>{} etc
|
|
state.op.push(tok);
|
|
tok = tok->next();
|
|
if (tok->str() == "<")
|
|
tok = tok->link()->next();
|
|
|
|
if (Token::Match(tok, "{ . %name% =|{")) {
|
|
const int inArrayAssignment = state.inArrayAssignment;
|
|
state.inArrayAssignment = 1;
|
|
compileBinOp(tok, state, compileExpression);
|
|
state.inArrayAssignment = inArrayAssignment;
|
|
} else if (Token::simpleMatch(tok, "{ }")) {
|
|
tok->astOperand1(state.op.top());
|
|
state.op.pop();
|
|
state.op.push(tok);
|
|
tok = tok->tokAt(2);
|
|
}
|
|
} else if (!state.cpp || !Token::Match(tok, "new|delete %name%|*|&|::|(|[")) {
|
|
std::vector<Token*> inner;
|
|
tok = skipDecl(tok, &inner);
|
|
for (Token* tok3 : inner) {
|
|
AST_state state1(state.cpp);
|
|
compileExpression(tok3, state1);
|
|
}
|
|
bool repeat = true;
|
|
while (repeat) {
|
|
repeat = false;
|
|
if (Token::Match(tok->next(), "%name%")) {
|
|
tok = tok->next();
|
|
repeat = true;
|
|
}
|
|
if (Token::simpleMatch(tok->next(), "<") && Token::Match(tok->linkAt(1), "> %name%")) {
|
|
tok = tok->next()->link()->next();
|
|
repeat = true;
|
|
}
|
|
}
|
|
state.op.push(tok);
|
|
if (Token::Match(tok, "%name% <") && tok->linkAt(1))
|
|
tok = tok->linkAt(1);
|
|
else if (Token::Match(tok, "%name% ...") || (state.op.size() == 1 && state.depth == 0 && Token::Match(tok->tokAt(-3), "!!& ) ( %name% ) =")))
|
|
tok = tok->next();
|
|
tok = tok->next();
|
|
if (Token::Match(tok, "%str%")) {
|
|
while (Token::Match(tok, "%name%|%str%"))
|
|
tok = tok->next();
|
|
}
|
|
if (Token::Match(tok, "%name% %assign%"))
|
|
tok = tok->next();
|
|
}
|
|
} else if (tok->str() == "{") {
|
|
const Token *prev = tok->previous();
|
|
if (Token::simpleMatch(prev, ") {") && iscast(prev->link(), state.cpp))
|
|
prev = prev->link()->previous();
|
|
if (Token::simpleMatch(tok->link(),"} [")) {
|
|
tok = tok->next();
|
|
} else if (state.cpp && iscpp11init(tok)) {
|
|
if (state.op.empty() || Token::Match(tok->previous(), "[{,]") || Token::Match(tok->tokAt(-2), "%name% (")) {
|
|
if (Token::Match(tok, "{ !!}")) {
|
|
Token *const end = tok->link();
|
|
if (Token::Match(tok, "{ . %name% =|{")) {
|
|
const int inArrayAssignment = state.inArrayAssignment;
|
|
state.inArrayAssignment = 1;
|
|
compileBinOp(tok, state, compileExpression);
|
|
state.inArrayAssignment = inArrayAssignment;
|
|
} else {
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
}
|
|
if (precedes(tok,end))
|
|
tok = end;
|
|
} else {
|
|
state.op.push(tok);
|
|
tok = tok->tokAt(2);
|
|
}
|
|
} else
|
|
compileBinOp(tok, state, compileExpression);
|
|
if (Token::Match(tok, "} ,|:|)"))
|
|
tok = tok->next();
|
|
} else if (state.cpp && Token::Match(tok->tokAt(-2), "%name% ( {") && !Token::findsimplematch(tok, ";", tok->link())) {
|
|
if (Token::simpleMatch(tok, "{ }"))
|
|
tok = tok->tokAt(2);
|
|
else {
|
|
Token *tok1 = tok;
|
|
state.inArrayAssignment++;
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
state.inArrayAssignment--;
|
|
tok = tok1->link()->next();
|
|
}
|
|
} else if (!state.inArrayAssignment && !Token::simpleMatch(prev, "=")) {
|
|
state.op.push(tok);
|
|
tok = tok->link()->next();
|
|
} else {
|
|
if (tok->link() != tok->next()) {
|
|
state.inArrayAssignment++;
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
if (Token::Match(tok, "} [,};]") && state.inArrayAssignment > 0) {
|
|
tok = tok->next();
|
|
state.inArrayAssignment--;
|
|
}
|
|
} else {
|
|
state.op.push(tok);
|
|
tok = tok->tokAt(2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void compileScope(Token *&tok, AST_state& state)
|
|
{
|
|
compileTerm(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == "::") {
|
|
const Token *lastOp = state.op.empty() ? nullptr : state.op.top();
|
|
if (Token::Match(lastOp, ":: %name%"))
|
|
lastOp = lastOp->next();
|
|
if (Token::Match(lastOp, "%name%") &&
|
|
(lastOp->next() == tok || (Token::Match(lastOp, "%name% <") && lastOp->linkAt(1) && tok == lastOp->linkAt(1)->next())))
|
|
compileBinOp(tok, state, compileTerm);
|
|
else
|
|
compileUnaryOp(tok, state, compileTerm);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static bool isPrefixUnary(const Token* tok, bool cpp)
|
|
{
|
|
if (!tok->previous()
|
|
|| ((Token::Match(tok->previous(), "(|[|{|%op%|;|}|?|:|,|.|return|::") || (cpp && tok->strAt(-1) == "throw"))
|
|
&& (tok->previous()->tokType() != Token::eIncDecOp || tok->tokType() == Token::eIncDecOp)))
|
|
return true;
|
|
|
|
if (tok->str() == "*" && tok->previous()->tokType() == Token::eIncDecOp && isPrefixUnary(tok->previous(), cpp))
|
|
return true;
|
|
|
|
return tok->strAt(-1) == ")" && iscast(tok->linkAt(-1), cpp);
|
|
}
|
|
|
|
static void compilePrecedence2(Token *&tok, AST_state& state)
|
|
{
|
|
const bool isStartOfCpp11Init = state.cpp && tok && tok->str() == "{" && iscpp11init(tok);
|
|
if (!(isStartOfCpp11Init && Token::Match(tok->tokAt(-2), "new %type% {")))
|
|
compileScope(tok, state);
|
|
while (tok) {
|
|
if (tok->tokType() == Token::eIncDecOp && !isPrefixUnary(tok, state.cpp)) {
|
|
compileUnaryOp(tok, state, compileScope);
|
|
} else if (tok->str() == "...") {
|
|
state.op.push(tok);
|
|
tok = tok->next();
|
|
break;
|
|
} else if (tok->str() == "." && tok->strAt(1) != "*") {
|
|
if (tok->strAt(1) == ".") {
|
|
state.op.push(tok);
|
|
tok = tok->tokAt(3);
|
|
break;
|
|
}
|
|
compileBinOp(tok, state, compileScope);
|
|
} else if (tok->str() == "[") {
|
|
if (state.cpp && isPrefixUnary(tok, state.cpp) && Token::Match(tok->link(), "] (|{")) { // Lambda
|
|
// What we do here:
|
|
// - Nest the round bracket under the square bracket.
|
|
// - Nest what follows the lambda (if anything) with the lambda opening [
|
|
// - Compile the content of the lambda function as separate tree (this is done later)
|
|
// this must be consistent with isLambdaCaptureList
|
|
Token* const squareBracket = tok;
|
|
// Parse arguments in the capture list
|
|
if (tok->strAt(1) != "]") {
|
|
Token* tok2 = tok->next();
|
|
AST_state state2(state.cpp);
|
|
compileExpression(tok2, state2);
|
|
if (!state2.op.empty()) {
|
|
squareBracket->astOperand2(state2.op.top());
|
|
}
|
|
}
|
|
|
|
if (Token::simpleMatch(squareBracket->link(), "] (")) {
|
|
Token* const roundBracket = squareBracket->link()->next();
|
|
Token* curlyBracket = roundBracket->link()->next();
|
|
while (Token::Match(curlyBracket, "mutable|const|constexpr"))
|
|
curlyBracket = curlyBracket->next();
|
|
if (Token::simpleMatch(curlyBracket, "noexcept ("))
|
|
curlyBracket = curlyBracket->linkAt(1)->next();
|
|
if (curlyBracket && curlyBracket->originalName() == "->")
|
|
curlyBracket = findTypeEnd(curlyBracket->next());
|
|
if (curlyBracket && curlyBracket->str() == "{") {
|
|
squareBracket->astOperand1(roundBracket);
|
|
roundBracket->astOperand1(curlyBracket);
|
|
state.op.push(squareBracket);
|
|
tok = curlyBracket->link()->next();
|
|
continue;
|
|
}
|
|
} else {
|
|
Token* const curlyBracket = squareBracket->link()->next();
|
|
squareBracket->astOperand1(curlyBracket);
|
|
state.op.push(squareBracket);
|
|
tok = curlyBracket->link()->next();
|
|
continue;
|
|
}
|
|
}
|
|
|
|
const Token* const tok2 = tok;
|
|
if (tok->strAt(1) != "]")
|
|
compileBinOp(tok, state, compileExpression);
|
|
else
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
tok = tok2->link()->next();
|
|
} else if (tok->str() == "(" && (!iscast(tok, state.cpp) || Token::Match(tok->previous(), "if|while|for|switch|catch"))) {
|
|
Token* tok2 = tok;
|
|
tok = tok->next();
|
|
const bool opPrevTopSquare = !state.op.empty() && state.op.top() && state.op.top()->str() == "[";
|
|
const std::size_t oldOpSize = state.op.size();
|
|
compileExpression(tok, state);
|
|
tok = tok2;
|
|
if ((oldOpSize > 0 && Token::simpleMatch(tok->previous(), "} ("))
|
|
|| (tok->previous() && tok->previous()->isName() && !Token::Match(tok->previous(), "return|case") && (!state.cpp || !Token::Match(tok->previous(), "throw|delete")))
|
|
|| (tok->strAt(-1) == "]" && (!state.cpp || !Token::Match(tok->linkAt(-1)->previous(), "new|delete")))
|
|
|| (tok->strAt(-1) == ">" && tok->linkAt(-1))
|
|
|| (tok->strAt(-1) == ")" && !iscast(tok->linkAt(-1), state.cpp)) // Don't treat brackets to clarify precedence as function calls
|
|
|| (tok->strAt(-1) == "}" && opPrevTopSquare)) {
|
|
const bool operandInside = oldOpSize < state.op.size();
|
|
if (operandInside)
|
|
compileBinOp(tok, state, nullptr);
|
|
else
|
|
compileUnaryOp(tok, state, nullptr);
|
|
}
|
|
tok = tok->link()->next();
|
|
} else if (iscast(tok, state.cpp) && Token::simpleMatch(tok->link(), ") {") && Token::simpleMatch(tok->link()->linkAt(1), "} [")) {
|
|
Token *cast = tok;
|
|
tok = tok->link()->next();
|
|
Token *tok1 = tok;
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
cast->astOperand1(tok1);
|
|
tok = tok1->link()->next();
|
|
} else if (state.cpp && tok->str() == "{" && iscpp11init(tok)) {
|
|
if (Token::simpleMatch(tok, "{ }"))
|
|
compileUnaryOp(tok, state, compileExpression);
|
|
else
|
|
compileBinOp(tok, state, compileExpression);
|
|
while (Token::simpleMatch(tok, "}"))
|
|
tok = tok->next();
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compilePrecedence3(Token *&tok, AST_state& state)
|
|
{
|
|
compilePrecedence2(tok, state);
|
|
while (tok) {
|
|
if ((Token::Match(tok, "[+-!~*&]") || tok->tokType() == Token::eIncDecOp) &&
|
|
isPrefixUnary(tok, state.cpp)) {
|
|
if (Token::Match(tok, "* [*,)]")) {
|
|
Token* tok2 = tok->next();
|
|
while (tok2->next() && tok2->str() == "*")
|
|
tok2 = tok2->next();
|
|
if (Token::Match(tok2, "[>),]")) {
|
|
tok = tok2;
|
|
continue;
|
|
}
|
|
}
|
|
compileUnaryOp(tok, state, compilePrecedence3);
|
|
} else if (tok->str() == "(" && iscast(tok, state.cpp)) {
|
|
Token* castTok = tok;
|
|
castTok->isCast(true);
|
|
tok = tok->link()->next();
|
|
const int inArrayAssignment = state.inArrayAssignment;
|
|
if (tok && tok->str() == "{")
|
|
state.inArrayAssignment = 1;
|
|
compilePrecedence3(tok, state);
|
|
state.inArrayAssignment = inArrayAssignment;
|
|
compileUnaryOp(castTok, state, nullptr);
|
|
} else if (state.cpp && Token::Match(tok, "new %name%|::|(")) {
|
|
Token* newtok = tok;
|
|
tok = tok->next();
|
|
bool innertype = false;
|
|
if (tok->str() == "(") {
|
|
if (Token::Match(tok, "( &| %name%") && Token::Match(tok->link(), ") ( %type%") && Token::simpleMatch(tok->link()->linkAt(1), ") ("))
|
|
tok = tok->link()->next();
|
|
if (Token::Match(tok->link(), ") ::| %type%")) {
|
|
if (Token::Match(tok, "( !!)")) {
|
|
Token *innerTok = tok->next();
|
|
AST_state innerState(true);
|
|
compileExpression(innerTok, innerState);
|
|
}
|
|
tok = tok->link()->next();
|
|
} else if (Token::Match(tok, "( %type%") && Token::Match(tok->link(), ") [();,[]")) {
|
|
tok = tok->next();
|
|
innertype = true;
|
|
} else if (Token::Match(tok, "( &| %name%") && Token::simpleMatch(tok->link(), ") (")) {
|
|
tok = tok->next();
|
|
innertype = true;
|
|
} else {
|
|
/* bad code */
|
|
continue;
|
|
}
|
|
}
|
|
|
|
Token* leftToken = tok;
|
|
while (Token::Match(tok->next(), ":: %name%")) {
|
|
Token* scopeToken = tok->next(); //The ::
|
|
scopeToken->astOperand1(leftToken);
|
|
scopeToken->astOperand2(scopeToken->next());
|
|
leftToken = scopeToken;
|
|
tok = scopeToken->next();
|
|
}
|
|
|
|
state.op.push(tok);
|
|
while (Token::Match(tok, "%name%|*|&|<|::")) {
|
|
if (tok->link())
|
|
tok = tok->link();
|
|
tok = tok->next();
|
|
}
|
|
if (Token::Match(tok, "( const| %type% ) (")) {
|
|
state.op.push(tok->next());
|
|
tok = tok->link()->next();
|
|
compileBinOp(tok, state, compilePrecedence2);
|
|
} else if (tok && (tok->str() == "[" || tok->str() == "(" || tok->str() == "{"))
|
|
compilePrecedence2(tok, state);
|
|
else if (innertype && Token::simpleMatch(tok, ") [")) {
|
|
tok = tok->next();
|
|
compilePrecedence2(tok, state);
|
|
}
|
|
compileUnaryOp(newtok, state, nullptr);
|
|
if (innertype && Token::simpleMatch(tok, ") ,"))
|
|
tok = tok->next();
|
|
} else if (state.cpp && Token::Match(tok, "delete %name%|*|&|::|(|[")) {
|
|
Token* tok2 = tok;
|
|
tok = tok->next();
|
|
if (tok && tok->str() == "[")
|
|
tok = tok->link()->next();
|
|
compilePrecedence3(tok, state);
|
|
compileUnaryOp(tok2, state, nullptr);
|
|
}
|
|
// TODO: Handle sizeof
|
|
else break;
|
|
}
|
|
}
|
|
|
|
static void compilePointerToElem(Token *&tok, AST_state& state)
|
|
{
|
|
compilePrecedence3(tok, state);
|
|
while (tok) {
|
|
if (Token::simpleMatch(tok, ". *")) {
|
|
compileBinOp(tok, state, compilePrecedence3);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileMulDiv(Token *&tok, AST_state& state)
|
|
{
|
|
compilePointerToElem(tok, state);
|
|
while (tok) {
|
|
if (Token::Match(tok, "[/%]") || (tok->str() == "*" && !tok->astOperand1() && !isQualifier(tok))) {
|
|
if (Token::Match(tok, "* [*,)]")) {
|
|
Token* tok2 = tok->next();
|
|
while (tok2->next() && tok2->str() == "*")
|
|
tok2 = tok2->next();
|
|
if (Token::Match(tok2, "[>),]")) {
|
|
tok = tok2;
|
|
break;
|
|
}
|
|
}
|
|
compileBinOp(tok, state, compilePointerToElem);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileAddSub(Token *&tok, AST_state& state)
|
|
{
|
|
compileMulDiv(tok, state);
|
|
while (tok) {
|
|
if (Token::Match(tok, "+|-") && !tok->astOperand1()) {
|
|
compileBinOp(tok, state, compileMulDiv);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileShift(Token *&tok, AST_state& state)
|
|
{
|
|
compileAddSub(tok, state);
|
|
while (tok) {
|
|
if (Token::Match(tok, "<<|>>")) {
|
|
compileBinOp(tok, state, compileAddSub);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileThreewayComp(Token *&tok, AST_state& state)
|
|
{
|
|
compileShift(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == "<=>") {
|
|
compileBinOp(tok, state, compileShift);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileRelComp(Token *&tok, AST_state& state)
|
|
{
|
|
compileThreewayComp(tok, state);
|
|
while (tok) {
|
|
if (Token::Match(tok, "<|<=|>=|>") && !tok->link()) {
|
|
compileBinOp(tok, state, compileThreewayComp);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileEqComp(Token *&tok, AST_state& state)
|
|
{
|
|
compileRelComp(tok, state);
|
|
while (tok) {
|
|
if (Token::Match(tok, "==|!=")) {
|
|
compileBinOp(tok, state, compileRelComp);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileAnd(Token *&tok, AST_state& state)
|
|
{
|
|
compileEqComp(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == "&" && !tok->astOperand1() && !isQualifier(tok)) {
|
|
Token* tok2 = tok->next();
|
|
if (!tok2)
|
|
break;
|
|
if (tok2->str() == "&")
|
|
tok2 = tok2->next();
|
|
if (state.cpp && Token::Match(tok2, ",|)")) {
|
|
tok = tok2;
|
|
break; // rValue reference
|
|
}
|
|
compileBinOp(tok, state, compileEqComp);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileXor(Token *&tok, AST_state& state)
|
|
{
|
|
compileAnd(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == "^") {
|
|
compileBinOp(tok, state, compileAnd);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileOr(Token *&tok, AST_state& state)
|
|
{
|
|
compileXor(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == "|") {
|
|
compileBinOp(tok, state, compileXor);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileLogicAnd(Token *&tok, AST_state& state)
|
|
{
|
|
compileOr(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == "&&" && !isQualifier(tok)) {
|
|
if (!tok->astOperand1()) {
|
|
Token* tok2 = tok->next();
|
|
if (!tok2)
|
|
break;
|
|
if (state.cpp && Token::Match(tok2, ",|)")) {
|
|
tok = tok2;
|
|
break; // rValue reference
|
|
}
|
|
}
|
|
compileBinOp(tok, state, compileOr);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileLogicOr(Token *&tok, AST_state& state)
|
|
{
|
|
compileLogicAnd(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == "||") {
|
|
compileBinOp(tok, state, compileLogicAnd);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileAssignTernary(Token *&tok, AST_state& state)
|
|
{
|
|
compileLogicOr(tok, state);
|
|
while (tok) {
|
|
if (tok->isAssignmentOp()) {
|
|
state.assign++;
|
|
const Token *tok1 = tok->next();
|
|
compileBinOp(tok, state, compileAssignTernary);
|
|
if (Token::simpleMatch(tok1, "{") && tok == tok1->link() && tok->next())
|
|
tok = tok->next();
|
|
if (state.assign > 0)
|
|
state.assign--;
|
|
} else if (tok->str() == "?") {
|
|
// http://en.cppreference.com/w/cpp/language/operator_precedence says about ternary operator:
|
|
// "The expression in the middle of the conditional operator (between ? and :) is parsed as if parenthesized: its precedence relative to ?: is ignored."
|
|
// Hence, we rely on Tokenizer::prepareTernaryOpForAST() to add such parentheses where necessary.
|
|
const bool stopAtColon = state.stopAtColon;
|
|
state.stopAtColon = false;
|
|
if (tok->strAt(1) == ":") {
|
|
state.op.push(nullptr);
|
|
}
|
|
const int assign = state.assign;
|
|
state.assign = 0;
|
|
compileBinOp(tok, state, compileAssignTernary);
|
|
state.assign = assign;
|
|
state.stopAtColon = stopAtColon;
|
|
} else if (tok->str() == ":") {
|
|
if (state.depth == 1U && state.inCase) {
|
|
state.inCase = false;
|
|
tok = tok->next();
|
|
break;
|
|
}
|
|
if (state.stopAtColon)
|
|
break;
|
|
if (state.assign > 0)
|
|
break;
|
|
compileBinOp(tok, state, compileAssignTernary);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileComma(Token *&tok, AST_state& state)
|
|
{
|
|
compileAssignTernary(tok, state);
|
|
while (tok) {
|
|
if (tok->str() == ",") {
|
|
if (Token::simpleMatch(tok, ", }"))
|
|
tok = tok->next();
|
|
else
|
|
compileBinOp(tok, state, compileAssignTernary);
|
|
} else if (tok->str() == ";" && state.functionCallEndPar && tok->index() < state.functionCallEndPar->index()) {
|
|
compileBinOp(tok, state, compileAssignTernary);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
static void compileExpression(Token *&tok, AST_state& state)
|
|
{
|
|
if (state.depth > AST_MAX_DEPTH)
|
|
throw InternalError(tok, "maximum AST depth exceeded", InternalError::AST); // ticket #5592
|
|
if (tok)
|
|
compileComma(tok, state);
|
|
}
|
|
|
|
static bool isLambdaCaptureList(const Token * tok)
|
|
{
|
|
// a lambda expression '[x](y){}' is compiled as:
|
|
// [
|
|
// `-( <<-- optional
|
|
// `-{
|
|
// see compilePrecedence2
|
|
if (tok->str() != "[")
|
|
return false;
|
|
if (!Token::Match(tok->link(), "] (|{"))
|
|
return false;
|
|
if (Token::simpleMatch(tok->astOperand1(), "{") && tok->astOperand1() == tok->link()->next())
|
|
return true;
|
|
if (!tok->astOperand1() || tok->astOperand1()->str() != "(")
|
|
return false;
|
|
const Token * params = tok->astOperand1();
|
|
if (!params->astOperand1() || params->astOperand1()->str() != "{")
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static Token * createAstAtToken(Token *tok, bool cpp);
|
|
|
|
// Compile inner expressions inside inner ({..}) and lambda bodies
|
|
static void createAstAtTokenInner(Token * const tok1, const Token *endToken, bool cpp)
|
|
{
|
|
for (Token* tok = tok1; precedes(tok, endToken); tok = tok ? tok->next() : nullptr) {
|
|
if (tok->str() == "{" && !iscpp11init(tok)) {
|
|
const Token * const endToken2 = tok->link();
|
|
bool hasAst = false;
|
|
for (const Token *inner = tok->next(); inner != endToken2; inner = inner->next()) {
|
|
if (inner->astOperand1()) {
|
|
hasAst = true;
|
|
break;
|
|
}
|
|
if (tok->isConstOp())
|
|
break;
|
|
if (inner->str() == "{")
|
|
inner = inner->link();
|
|
}
|
|
if (!hasAst) {
|
|
for (; tok && tok != endToken && tok != endToken2; tok = tok ? tok->next() : nullptr)
|
|
tok = createAstAtToken(tok, cpp);
|
|
}
|
|
} else if (cpp && tok->str() == "[") {
|
|
if (isLambdaCaptureList(tok)) {
|
|
tok = tok->astOperand1();
|
|
if (tok->str() == "(")
|
|
tok = tok->astOperand1();
|
|
const Token * const endToken2 = tok->link();
|
|
tok = tok->next();
|
|
for (; tok && tok != endToken && tok != endToken2; tok = tok ? tok->next() : nullptr)
|
|
tok = createAstAtToken(tok, cpp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static Token * findAstTop(Token *tok1, Token *tok2)
|
|
{
|
|
for (Token *tok = tok1; tok && (tok != tok2); tok = tok->next()) {
|
|
if (tok->astParent() || tok->astOperand1() || tok->astOperand2()) {
|
|
while (tok->astParent() && tok->astParent()->index() >= tok1->index() && tok->astParent()->index() <= tok2->index())
|
|
tok = tok->astParent();
|
|
return tok;
|
|
}
|
|
if (Token::simpleMatch(tok, "( {"))
|
|
tok = tok->link();
|
|
}
|
|
for (Token *tok = tok1; tok && (tok != tok2); tok = tok->next()) {
|
|
if (tok->isName() || tok->isNumber())
|
|
return tok;
|
|
if (Token::simpleMatch(tok, "( {"))
|
|
tok = tok->link();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
static Token * createAstAtToken(Token *tok, bool cpp)
|
|
{
|
|
if (Token::simpleMatch(tok, "for (")) {
|
|
if (cpp && Token::Match(tok, "for ( const| auto &|&&| [")) {
|
|
Token *decl = Token::findsimplematch(tok, "[");
|
|
if (Token::simpleMatch(decl->link(), "] :")) {
|
|
AST_state state1(cpp);
|
|
while (decl->str() != "]") {
|
|
if (Token::Match(decl, "%name% ,|]")) {
|
|
state1.op.push(decl);
|
|
} else if (decl->str() == ",") {
|
|
if (!state1.op.empty()) {
|
|
decl->astOperand1(state1.op.top());
|
|
state1.op.pop();
|
|
}
|
|
if (!state1.op.empty()) {
|
|
state1.op.top()->astOperand2(decl);
|
|
state1.op.pop();
|
|
}
|
|
state1.op.push(decl);
|
|
}
|
|
decl = decl->next();
|
|
}
|
|
if (state1.op.size() > 1) {
|
|
Token *lastName = state1.op.top();
|
|
state1.op.pop();
|
|
state1.op.top()->astOperand2(lastName);
|
|
}
|
|
decl = decl->next();
|
|
|
|
Token *colon = decl;
|
|
compileExpression(decl, state1);
|
|
|
|
tok->next()->astOperand1(tok);
|
|
tok->next()->astOperand2(colon);
|
|
|
|
return decl;
|
|
}
|
|
}
|
|
|
|
std::vector<Token*> inner;
|
|
Token* tok2 = skipDecl(tok->tokAt(2), &inner);
|
|
for (Token* tok3 : inner) {
|
|
AST_state state1(cpp);
|
|
compileExpression(tok3, state1);
|
|
}
|
|
Token *init1 = nullptr;
|
|
Token * const endPar = tok->next()->link();
|
|
if (tok2 == tok->tokAt(2) && Token::Match(tok2, "%op%|(")) {
|
|
init1 = tok2;
|
|
AST_state state1(cpp);
|
|
compileExpression(tok2, state1);
|
|
if (Token::Match(init1, "( !!{")) {
|
|
for (Token *tok3 = init1; tok3 != tok3->link(); tok3 = tok3->next()) {
|
|
if (tok3->astParent()) {
|
|
while (tok3->astParent())
|
|
tok3 = tok3->astParent();
|
|
init1 = tok3;
|
|
break;
|
|
}
|
|
if (!Token::Match(tok3, "%op%|(|["))
|
|
init1 = tok3;
|
|
}
|
|
}
|
|
} else {
|
|
while (tok2 && tok2 != endPar && tok2->str() != ";") {
|
|
if (tok2->str() == "<" && tok2->link()) {
|
|
tok2 = tok2->link();
|
|
} else if (Token::Match(tok2, "%name% )| %op%|(|[|.|:|::") || Token::Match(tok2->previous(), "[(;{}] %cop%|(")) {
|
|
init1 = tok2;
|
|
AST_state state1(cpp);
|
|
compileExpression(tok2, state1);
|
|
if (Token::Match(tok2, ";|)"))
|
|
break;
|
|
init1 = nullptr;
|
|
}
|
|
if (!tok2) // #7109 invalid code
|
|
return nullptr;
|
|
tok2 = tok2->next();
|
|
}
|
|
}
|
|
if (!tok2 || tok2->str() != ";") {
|
|
if (tok2 == endPar && init1) {
|
|
tok->next()->astOperand2(init1);
|
|
tok->next()->astOperand1(tok);
|
|
}
|
|
return tok2;
|
|
}
|
|
|
|
Token * const init = init1 ? init1 : tok2;
|
|
|
|
Token * const semicolon1 = tok2;
|
|
tok2 = tok2->next();
|
|
AST_state state2(cpp);
|
|
compileExpression(tok2, state2);
|
|
|
|
Token * const semicolon2 = tok2;
|
|
if (!semicolon2)
|
|
return nullptr; // invalid code #7235
|
|
|
|
if (semicolon2->str() == ";") {
|
|
tok2 = tok2->next();
|
|
AST_state state3(cpp);
|
|
if (Token::simpleMatch(tok2, "( {")) {
|
|
state3.op.push(tok2->next());
|
|
tok2 = tok2->link()->next();
|
|
}
|
|
compileExpression(tok2, state3);
|
|
|
|
tok2 = findAstTop(semicolon1->next(), semicolon2);
|
|
if (tok2)
|
|
semicolon2->astOperand1(tok2);
|
|
tok2 = findAstTop(semicolon2->next(), endPar);
|
|
if (tok2)
|
|
semicolon2->astOperand2(tok2);
|
|
else if (!state3.op.empty())
|
|
semicolon2->astOperand2(state3.op.top());
|
|
semicolon1->astOperand2(semicolon2);
|
|
} else {
|
|
if (!cpp || !Token::simpleMatch(state2.op.top(), ":"))
|
|
throw InternalError(tok, "syntax error", InternalError::SYNTAX);
|
|
|
|
semicolon1->astOperand2(state2.op.top());
|
|
}
|
|
|
|
if (init != semicolon1)
|
|
semicolon1->astOperand1(init->astTop());
|
|
tok->next()->astOperand1(tok);
|
|
tok->next()->astOperand2(semicolon1);
|
|
|
|
createAstAtTokenInner(endPar->link(), endPar, cpp);
|
|
|
|
return endPar;
|
|
}
|
|
|
|
if (Token::simpleMatch(tok, "( {"))
|
|
return tok;
|
|
|
|
if (Token::Match(tok, "%type% <") && tok->linkAt(1) && !Token::Match(tok->linkAt(1), "> [({]"))
|
|
return tok->linkAt(1);
|
|
|
|
if (cpp && !tok->isKeyword() && Token::Match(tok, "%type% ::|<|%name%")) {
|
|
Token *tok2 = tok;
|
|
while (true) {
|
|
if (Token::Match(tok2, "%name%|> :: %name%"))
|
|
tok2 = tok2->tokAt(2);
|
|
else if (Token::Match(tok2, "%name% <") && tok2->linkAt(1))
|
|
tok2 = tok2->linkAt(1);
|
|
else
|
|
break;
|
|
}
|
|
if (Token::Match(tok2, "%name%|> %name% {") && tok2->next()->varId() && iscpp11init(tok2->tokAt(2))) {
|
|
Token *const tok1 = tok = tok2->next();
|
|
AST_state state(cpp);
|
|
compileExpression(tok, state);
|
|
createAstAtTokenInner(tok1->next(), tok1->linkAt(1), cpp);
|
|
return tok;
|
|
}
|
|
}
|
|
|
|
if (Token::Match(tok, "%type% %name%|*|&|::") && !Token::Match(tok, "return|new")) {
|
|
int typecount = 0;
|
|
Token *typetok = tok;
|
|
while (Token::Match(typetok, "%type%|::|*|&")) {
|
|
if (typetok->isName() && !Token::simpleMatch(typetok->previous(), "::"))
|
|
typecount++;
|
|
typetok = typetok->next();
|
|
}
|
|
if (Token::Match(typetok, "%var% =") && typetok->varId())
|
|
tok = typetok;
|
|
|
|
// Do not create AST for function declaration
|
|
if (typetok &&
|
|
typecount >= 2 &&
|
|
!Token::Match(tok, "return|throw") &&
|
|
Token::Match(typetok->previous(), "%name% (") &&
|
|
typetok->previous()->varId() == 0 &&
|
|
!typetok->previous()->isKeyword() &&
|
|
Token::Match(typetok->link(), ") const|;|{"))
|
|
return typetok;
|
|
}
|
|
|
|
if (Token::Match(tok, "return|case") ||
|
|
(cpp && tok->str() == "throw") ||
|
|
!tok->previous() ||
|
|
Token::Match(tok, "%name% %op%|(|[|.|::|<|?|;") ||
|
|
(cpp && Token::Match(tok, "%name% {") && iscpp11init(tok->next())) ||
|
|
Token::Match(tok->previous(), "[;{}] %cop%|++|--|( !!{") ||
|
|
Token::Match(tok->previous(), "[;{}] %num%|%str%|%char%")) {
|
|
if (cpp && (Token::Match(tok->tokAt(-2), "[;{}] new|delete %name%") || Token::Match(tok->tokAt(-3), "[;{}] :: new|delete %name%")))
|
|
tok = tok->previous();
|
|
|
|
Token * const tok1 = tok;
|
|
AST_state state(cpp);
|
|
if (Token::Match(tok, "%name% ("))
|
|
state.functionCallEndPar = tok->linkAt(1);
|
|
compileExpression(tok, state);
|
|
const Token * const endToken = tok;
|
|
if (endToken == tok1 || !endToken)
|
|
return tok1;
|
|
|
|
createAstAtTokenInner(tok1->next(), endToken, cpp);
|
|
|
|
return endToken->previous();
|
|
}
|
|
|
|
if (cpp && tok->str() == "{" && iscpp11init(tok)) {
|
|
Token * const tok1 = tok;
|
|
AST_state state(cpp);
|
|
compileExpression(tok, state);
|
|
const Token * const endToken = tok;
|
|
if (endToken == tok1 || !endToken)
|
|
return tok1;
|
|
|
|
createAstAtTokenInner(tok1->next(), endToken, cpp);
|
|
return endToken->previous();
|
|
}
|
|
|
|
return tok;
|
|
}
|
|
|
|
void TokenList::createAst() const
|
|
{
|
|
for (Token *tok = mTokensFrontBack.front; tok; tok = tok ? tok->next() : nullptr) {
|
|
tok = createAstAtToken(tok, isCPP());
|
|
}
|
|
}
|
|
|
|
struct OnException {
|
|
std::function<void()> f;
|
|
|
|
~OnException() {
|
|
#ifndef _MSC_VER
|
|
if (std::uncaught_exception())
|
|
f();
|
|
#endif
|
|
}
|
|
};
|
|
|
|
void TokenList::validateAst() const
|
|
{
|
|
OnException oe{[&] {
|
|
if (mSettings->debugnormal)
|
|
mTokensFrontBack.front->printOut();
|
|
}};
|
|
// Check for some known issues in AST to avoid crash/hang later on
|
|
std::set<const Token*> safeAstTokens; // list of "safe" AST tokens without endless recursion
|
|
for (const Token *tok = mTokensFrontBack.front; tok; tok = tok->next()) {
|
|
// Syntax error if binary operator only has 1 operand
|
|
if ((tok->isAssignmentOp() || tok->isComparisonOp() || Token::Match(tok,"[|^/%]")) && tok->astOperand1() && !tok->astOperand2())
|
|
throw InternalError(tok, "Syntax Error: AST broken, binary operator has only one operand.", InternalError::AST);
|
|
|
|
// Syntax error if we encounter "?" with operand2 that is not ":"
|
|
if (tok->str() == "?") {
|
|
if (!tok->astOperand1() || !tok->astOperand2())
|
|
throw InternalError(tok, "AST broken, ternary operator missing operand(s)", InternalError::AST);
|
|
else if (tok->astOperand2()->str() != ":")
|
|
throw InternalError(tok, "Syntax Error: AST broken, ternary operator lacks ':'.", InternalError::AST);
|
|
}
|
|
|
|
// Check for endless recursion
|
|
const Token* parent = tok->astParent();
|
|
if (parent) {
|
|
std::set<const Token*> astTokens; // list of ancestors
|
|
astTokens.insert(tok);
|
|
do {
|
|
if (safeAstTokens.find(parent) != safeAstTokens.end())
|
|
break;
|
|
if (astTokens.find(parent) != astTokens.end())
|
|
throw InternalError(tok, "AST broken: endless recursion from '" + tok->str() + "'", InternalError::AST);
|
|
astTokens.insert(parent);
|
|
} while ((parent = parent->astParent()) != nullptr);
|
|
safeAstTokens.insert(astTokens.begin(), astTokens.end());
|
|
} else if (tok->str() == ";") {
|
|
safeAstTokens.clear();
|
|
} else {
|
|
safeAstTokens.insert(tok);
|
|
}
|
|
|
|
// Don't check templates
|
|
if (tok->str() == "<" && tok->link()) {
|
|
tok = tok->link();
|
|
continue;
|
|
}
|
|
|
|
// Check binary operators
|
|
if (Token::Match(tok, "%or%|%oror%|%assign%|%comp%")) {
|
|
// Skip lambda captures
|
|
if (Token::Match(tok, "= ,|]"))
|
|
continue;
|
|
// Skip pure virtual functions
|
|
if (Token::simpleMatch(tok->previous(), ") = 0"))
|
|
continue;
|
|
// Skip operator definitions
|
|
if (Token::simpleMatch(tok->previous(), "operator"))
|
|
continue;
|
|
// Skip incomplete code
|
|
if (!tok->astOperand1() && !tok->astOperand2() && !tok->astParent())
|
|
continue;
|
|
// Skip lambda assignment and/or initializer
|
|
if (Token::Match(tok, "= {|^|["))
|
|
continue;
|
|
// FIXME: Workaround broken AST assignment in type aliases
|
|
if (Token::Match(tok->previous(), "%name% = %name%"))
|
|
continue;
|
|
if (!tok->astOperand1() || !tok->astOperand2())
|
|
throw InternalError(tok, "Syntax Error: AST broken, binary operator '" + tok->str() + "' doesn't have two operands.", InternalError::AST);
|
|
}
|
|
|
|
// Check control blocks and asserts
|
|
if (Token::Match(tok->previous(), "if|while|for|switch|assert|ASSERT (")) {
|
|
if (!tok->astOperand1() || !tok->astOperand2())
|
|
throw InternalError(tok,
|
|
"Syntax Error: AST broken, '" + tok->previous()->str() +
|
|
"' doesn't have two operands.",
|
|
InternalError::AST);
|
|
}
|
|
|
|
// Check member access
|
|
if (Token::Match(tok, "%var% .")) {
|
|
if (!tok->astParent()) {
|
|
throw InternalError(
|
|
tok, "Syntax Error: AST broken, '" + tok->str() + "' doesn't have a parent.", InternalError::AST);
|
|
}
|
|
if (!tok->next()->astOperand1() || !tok->next()->astOperand2()) {
|
|
const std::string& op =
|
|
tok->next()->originalName().empty() ? tok->next()->str() : tok->next()->originalName();
|
|
throw InternalError(
|
|
tok, "Syntax Error: AST broken, '" + op + "' doesn't have two operands.", InternalError::AST);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
std::string TokenList::getOrigFile(const Token *tok) const
|
|
{
|
|
return mOrigFiles.at(tok->fileIndex());
|
|
}
|
|
|
|
const std::string& TokenList::file(const Token *tok) const
|
|
{
|
|
return mFiles.at(tok->fileIndex());
|
|
}
|
|
|
|
std::string TokenList::fileLine(const Token *tok) const
|
|
{
|
|
return ErrorMessage::FileLocation(tok, this).stringify();
|
|
}
|
|
|
|
bool TokenList::validateToken(const Token* tok) const
|
|
{
|
|
if (!tok)
|
|
return true;
|
|
for (const Token *t = mTokensFrontBack.front; t; t = t->next()) {
|
|
if (tok==t)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void TokenList::simplifyPlatformTypes()
|
|
{
|
|
const bool isCPP11 = mSettings->standards.cpp >= Standards::CPP11;
|
|
|
|
enum { isLongLong, isLong, isInt } type;
|
|
|
|
/** @todo This assumes a flat address space. Not true for segmented address space (FAR *). */
|
|
|
|
if (mSettings->sizeof_size_t == mSettings->sizeof_long)
|
|
type = isLong;
|
|
else if (mSettings->sizeof_size_t == mSettings->sizeof_long_long)
|
|
type = isLongLong;
|
|
else if (mSettings->sizeof_size_t == mSettings->sizeof_int)
|
|
type = isInt;
|
|
else
|
|
return;
|
|
|
|
for (Token *tok = front(); tok; tok = tok->next()) {
|
|
// pre-check to reduce unneeded match calls
|
|
if (!Token::Match(tok, "std| ::| %type%"))
|
|
continue;
|
|
bool isUnsigned;
|
|
if (Token::Match(tok, "std| ::| size_t|uintptr_t|uintmax_t")) {
|
|
if (isCPP11 && tok->strAt(-1) == "using" && tok->strAt(1) == "=")
|
|
continue;
|
|
isUnsigned = true;
|
|
} else if (Token::Match(tok, "std| ::| ssize_t|ptrdiff_t|intptr_t|intmax_t")) {
|
|
if (isCPP11 && tok->strAt(-1) == "using" && tok->strAt(1) == "=")
|
|
continue;
|
|
isUnsigned = false;
|
|
} else
|
|
continue;
|
|
|
|
bool inStd = false;
|
|
if (tok->str() == "::") {
|
|
tok->deleteThis();
|
|
} else if (tok->str() == "std") {
|
|
if (tok->next()->str() != "::")
|
|
continue;
|
|
inStd = true;
|
|
tok->deleteNext();
|
|
tok->deleteThis();
|
|
}
|
|
|
|
if (inStd)
|
|
tok->originalName("std::" + tok->str());
|
|
else
|
|
tok->originalName(tok->str());
|
|
if (isUnsigned)
|
|
tok->isUnsigned(true);
|
|
|
|
switch (type) {
|
|
case isLongLong:
|
|
tok->isLong(true);
|
|
tok->str("long");
|
|
break;
|
|
case isLong:
|
|
tok->str("long");
|
|
break;
|
|
case isInt:
|
|
tok->str("int");
|
|
break;
|
|
}
|
|
}
|
|
|
|
const std::string platform_type(mSettings->platformString());
|
|
|
|
for (Token *tok = front(); tok; tok = tok->next()) {
|
|
if (tok->tokType() != Token::eType && tok->tokType() != Token::eName)
|
|
continue;
|
|
|
|
const Library::PlatformType * const platformtype = mSettings->library.platform_type(tok->str(), platform_type);
|
|
|
|
if (platformtype) {
|
|
// check for namespace
|
|
if (tok->strAt(-1) == "::") {
|
|
const Token * tok1 = tok->tokAt(-2);
|
|
// skip when non-global namespace defined
|
|
if (tok1 && tok1->tokType() == Token::eName)
|
|
continue;
|
|
tok = tok->previous();
|
|
tok->deleteThis();
|
|
}
|
|
Token *typeToken;
|
|
if (platformtype->mConstPtr) {
|
|
tok->str("const");
|
|
tok->insertToken("*");
|
|
tok->insertToken(platformtype->mType);
|
|
typeToken = tok;
|
|
} else if (platformtype->mPointer) {
|
|
tok->str(platformtype->mType);
|
|
typeToken = tok;
|
|
tok->insertToken("*");
|
|
} else if (platformtype->mPtrPtr) {
|
|
tok->str(platformtype->mType);
|
|
typeToken = tok;
|
|
tok->insertToken("*");
|
|
tok->insertToken("*");
|
|
} else {
|
|
tok->originalName(tok->str());
|
|
tok->str(platformtype->mType);
|
|
typeToken = tok;
|
|
}
|
|
if (platformtype->mSigned)
|
|
typeToken->isSigned(true);
|
|
if (platformtype->mUnsigned)
|
|
typeToken->isUnsigned(true);
|
|
if (platformtype->mLong)
|
|
typeToken->isLong(true);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TokenList::simplifyStdType()
|
|
{
|
|
for (Token *tok = front(); tok; tok = tok->next()) {
|
|
|
|
if (Token::Match(tok, "const|extern *|&|%name%") && (!tok->previous() || Token::Match(tok->previous(), "[;{}]"))) {
|
|
if (Token::Match(tok->next(), "%name% !!;"))
|
|
continue;
|
|
|
|
tok->insertToken("int");
|
|
tok->next()->isImplicitInt(true);
|
|
continue;
|
|
}
|
|
|
|
if (Token::Match(tok, "char|short|int|long|unsigned|signed|double|float") || (mSettings->standards.c >= Standards::C99 && Token::Match(tok, "complex|_Complex"))) {
|
|
bool isFloat= false;
|
|
bool isSigned = false;
|
|
bool isUnsigned = false;
|
|
bool isComplex = false;
|
|
int countLong = 0;
|
|
Token* typeSpec = nullptr;
|
|
|
|
Token* tok2 = tok;
|
|
for (; tok2->next(); tok2 = tok2->next()) {
|
|
if (tok2->str() == "long") {
|
|
countLong++;
|
|
if (!isFloat)
|
|
typeSpec = tok2;
|
|
} else if (tok2->str() == "short") {
|
|
typeSpec = tok2;
|
|
} else if (tok2->str() == "unsigned")
|
|
isUnsigned = true;
|
|
else if (tok2->str() == "signed")
|
|
isSigned = true;
|
|
else if (Token::Match(tok2, "float|double")) {
|
|
isFloat = true;
|
|
typeSpec = tok2;
|
|
} else if (mSettings->standards.c >= Standards::C99 && Token::Match(tok2, "complex|_Complex"))
|
|
isComplex = !isFloat || tok2->str() == "_Complex" || Token::Match(tok2->next(), "*|&|%name%"); // Ensure that "complex" is not the variables name
|
|
else if (Token::Match(tok2, "char|int")) {
|
|
if (!typeSpec)
|
|
typeSpec = tok2;
|
|
} else
|
|
break;
|
|
}
|
|
|
|
if (!typeSpec) { // unsigned i; or similar declaration
|
|
if (!isComplex) { // Ensure that "complex" is not the variables name
|
|
tok->str("int");
|
|
tok->isSigned(isSigned);
|
|
tok->isUnsigned(isUnsigned);
|
|
tok->isImplicitInt(true);
|
|
}
|
|
} else {
|
|
typeSpec->isLong(typeSpec->isLong() || (isFloat && countLong == 1) || countLong > 1);
|
|
typeSpec->isComplex(typeSpec->isComplex() || (isFloat && isComplex));
|
|
typeSpec->isSigned(typeSpec->isSigned() || isSigned);
|
|
typeSpec->isUnsigned(typeSpec->isUnsigned() || isUnsigned);
|
|
|
|
// Remove specifiers
|
|
const Token* tok3 = tok->previous();
|
|
tok2 = tok2->previous();
|
|
while (tok3 != tok2) {
|
|
if (tok2 != typeSpec &&
|
|
(isComplex || !Token::Match(tok2, "complex|_Complex"))) // Ensure that "complex" is not the variables name
|
|
tok2->deleteThis();
|
|
tok2 = tok2->previous();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool TokenList::isKeyword(const std::string &str) const
|
|
{
|
|
return mKeywords.find(str) != mKeywords.end();
|
|
}
|