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new trunk (base for 1.5)
windows build only
This commit is contained in:
Aleksandar Fabijanic
248
CppParser/src/Function.cpp
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248
CppParser/src/Function.cpp
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//
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// Function.cpp
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//
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// $Id: //poco/1.3/CppParser/src/Function.cpp#3 $
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//
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// Library: CppParser
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// Package: SymbolTable
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// Module: Function
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//
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// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/CppParser/Function.h"
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#include "Poco/CppParser/Parameter.h"
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#include "Poco/CppParser/NameSpace.h"
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#include "Poco/CppParser/Struct.h"
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#include "Poco/CppParser/Utility.h"
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#include "Poco/String.h"
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#include <sstream>
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#include <cctype>
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#include <cstddef>
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namespace Poco {
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namespace CppParser {
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Function::Function(const std::string& decl, NameSpace* pNameSpace):
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Decl(decl, pNameSpace),
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_flags(0),
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_retParam()
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{
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if (hasAttr(decl, "static"))
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_flags |= FN_STATIC;
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if (hasAttr(decl, "virtual"))
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_flags |= FN_VIRTUAL;
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if (hasAttr(decl, "inline"))
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_flags |= FN_INLINE;
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if (hasAttr(decl, "template"))
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_flags |= FN_TEMPLATE;
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if (isMethod() || isFunction())
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{
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// parse the decl
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std::size_t pos = decl.rfind(name());
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_retParam = decl.substr(0, pos-1);
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// eliminate static, virtual, inline, template
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_retParam = replace(_retParam, "static ", "");
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_retParam = replace(_retParam, "virtual ", "");
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_retParam = replace(_retParam, "inline ", "");
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if (_flags & FN_TEMPLATE)
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{
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std::size_t pos = _retParam.find(">");
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poco_assert (pos != std::string::npos);
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_retParam = _retParam.substr(pos+1);
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}
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Poco::trimInPlace(_retParam);
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}
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}
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Function::~Function()
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{
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for (Parameters::iterator it = _params.begin(); it != _params.end(); ++it)
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{
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delete *it;
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}
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}
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void Function::addParameter(Parameter* pParam)
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{
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_params.push_back(pParam);
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}
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Function::Iterator Function::begin() const
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{
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return _params.begin();
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}
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Function::Iterator Function::end() const
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{
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return _params.end();
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}
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void Function::makeInline()
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{
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_flags |= FN_INLINE;
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}
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void Function::makeConst()
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{
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_flags |= FN_CONST;
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}
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void Function::makePureVirtual()
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{
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_flags |= FN_PURE_VIRTUAL;
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}
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bool Function::isConstructor() const
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{
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return name() == nameSpace()->name();
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}
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bool Function::isDestructor() const
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{
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return name()[0] == '~';
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}
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bool Function::isMethod() const
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{
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return !isConstructor() && !isDestructor() && nameSpace()->kind() == Symbol::SYM_STRUCT;
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}
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bool Function::isFunction() const
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{
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return nameSpace()->kind() == Symbol::SYM_NAMESPACE;
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}
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int Function::countParameters() const
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{
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return (int) _params.size();
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}
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Symbol::Kind Function::kind() const
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{
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return Symbol::SYM_FUNCTION;
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}
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std::string Function::signature() const
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{
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std::string signature(declaration());
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if (signature.compare(0, 8, "virtual ") == 0)
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signature.erase(0, 8);
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else if (signature.compare(0, 7, "static ") == 0)
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signature.erase(0, 8);
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if (signature.compare(0, 7, "inline ") == 0)
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signature.erase(0, 7);
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signature += "(";
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bool isFirst = true;
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for (Iterator it = begin(); it != end(); ++it)
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{
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if (isFirst)
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isFirst = false;
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else
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signature += ", ";
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std::string arg = (*it)->declaration();
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std::string::size_type pos = arg.size() - 1;
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while (pos > 0 && !std::isspace(arg[pos])) --pos;
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while (pos > 0 && std::isspace(arg[pos])) --pos;
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signature.append(arg, 0, pos + 1);
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}
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signature += ")";
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if (_flags & FN_CONST)
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signature += " const";
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return signature;
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}
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bool Function::isVirtual() const
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{
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if (_flags & FN_VIRTUAL)
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{
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return true;
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}
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else if (isDestructor())
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{
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Struct* pClass = dynamic_cast<Struct*>(nameSpace());
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return pClass && pClass->hasVirtualDestructor();
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}
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else return getOverridden() != 0;
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return false;
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}
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Function* Function::getOverridden() const
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{
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if (isMethod() && !(_flags & FN_STATIC))
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{
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Struct* pClass = dynamic_cast<Struct*>(nameSpace());
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if (pClass)
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{
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for (Struct::BaseIterator it = pClass->baseBegin(); it != pClass->baseEnd(); ++it)
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{
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if (it->pClass)
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{
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Function* pOverridden = it->pClass->findFunction(signature());
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if (pOverridden && pOverridden->isVirtual())
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return pOverridden;
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}
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}
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}
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}
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return 0;
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}
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std::string Function::toString() const
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{
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std::ostringstream ostr;
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ostr << Decl::toString() << "(\n";
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for (Iterator it = begin(); it != end(); ++it)
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{
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ostr << "\t" << (*it)->toString() << "\n";
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}
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ostr << ");";
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return ostr.str();
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}
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} } // namespace Poco::CppParser
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