cppcheck/gui/librarydata.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2015 Daniel Marjamäki and Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "librarydata.h"
#include <QDomDocument>
#include <QDomNode>
#include <QDomNodeList>
const unsigned int LibraryData::Function::Arg::ANY = ~0U;
LibraryData::LibraryData()
{
}
static LibraryData::Define loadDefine(const QDomElement &defineElement)
{
LibraryData::Define define;
define.name = defineElement.attribute("name");
define.value = defineElement.attribute("value");
return define;
}
static LibraryData::Function::Arg loadFunctionArg(const QDomElement &functionArgElement)
{
LibraryData::Function::Arg arg;
if (functionArgElement.attribute("nr") == "any")
arg.nr = LibraryData::Function::Arg::ANY;
else
arg.nr = functionArgElement.attribute("nr").toUInt();
for (QDomElement childElement = functionArgElement.firstChildElement(); !childElement.isNull(); childElement = childElement.nextSiblingElement()) {
if (childElement.tagName() == "not-bool")
arg.notbool = true;
else if (childElement.tagName() == "not-null")
arg.notnull = true;
else if (childElement.tagName() == "not-uninit")
arg.notuninit = true;
else if (childElement.tagName() == "strz")
arg.strz = true;
else if (childElement.tagName() == "formatstr")
arg.formatstr = true;
else if (childElement.tagName() == "valid")
arg.valid = childElement.text();
else if (childElement.tagName() == "minsize") {
arg.minsize.type = childElement.attribute("type");
arg.minsize.arg = childElement.attribute("arg");
arg.minsize.arg2 = childElement.attribute("arg2");
}
}
return arg;
}
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static LibraryData::Function loadFunction(const QDomElement &functionElement, const QStringList &comments)
{
LibraryData::Function function;
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function.comments = comments;
function.name = functionElement.attribute("name");
for (QDomElement childElement = functionElement.firstChildElement(); !childElement.isNull(); childElement = childElement.nextSiblingElement()) {
if (childElement.tagName() == "noreturn")
function.noreturn = (childElement.text() == "true");
else if (childElement.tagName() == "pure")
function.gccPure = true;
else if (childElement.tagName() == "const")
function.gccConst = true;
else if (childElement.tagName() == "leak-ignore")
function.leakignore = true;
else if (childElement.tagName() == "use-retval")
function.useretval = true;
else if (childElement.tagName() == "formatstr") {
function.formatstr.scan = childElement.attribute("scan");
function.formatstr.secure = childElement.attribute("secure");
} else if (childElement.tagName() == "arg") {
const LibraryData::Function::Arg fa = loadFunctionArg(childElement);
function.args.append(fa);
} else {
int x = 123;
x++;
}
}
return function;
}
static LibraryData::MemoryResource loadMemoryResource(const QDomElement &element)
{
LibraryData::MemoryResource memoryresource;
memoryresource.type = element.tagName();
for (QDomElement childElement = element.firstChildElement(); !childElement.isNull(); childElement = childElement.nextSiblingElement()) {
if (childElement.tagName() == "alloc") {
LibraryData::MemoryResource::Alloc alloc;
alloc.init = (childElement.attribute("init", "false") == "true");
alloc.name = childElement.text();
memoryresource.alloc.append(alloc);
} else if (childElement.tagName() == "dealloc")
memoryresource.dealloc.append(childElement.text());
else if (childElement.tagName() == "use")
memoryresource.use.append(childElement.text());
}
return memoryresource;
}
static LibraryData::PodType loadPodType(const QDomElement &element)
{
LibraryData::PodType podtype;
podtype.name = element.attribute("name");
podtype.size = element.attribute("size");
podtype.sign = element.attribute("sign");
return podtype;
}
bool LibraryData::open(QIODevice &file)
{
QDomDocument doc;
if (!doc.setContent(&file))
return false;
clear();
QDomElement rootElement = doc.firstChildElement("def");
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QStringList comments;
for (QDomNode n = rootElement.firstChild(); !n.isNull(); n = n.nextSibling()) {
if (n.isComment())
comments.append(n.toComment().data());
else if (n.isElement()) {
const QDomElement e = n.toElement();
if (e.tagName() == "define")
defines.append(loadDefine(e));
else if (e.tagName() == "function")
functions.append(loadFunction(e, comments));
else if (e.tagName() == "memory" || e.tagName() == "resource")
memoryresource.append(loadMemoryResource(e));
else if (e.tagName() == "podtype")
podtypes.append(loadPodType(e));
comments.clear();
}
}
return true;
}
static QDomElement FunctionElement(QDomDocument &doc, const LibraryData::Function &function)
{
QDomElement functionElement = doc.createElement("function");
functionElement.setAttribute("name", function.name);
if (!function.noreturn) {
QDomElement e = doc.createElement("noreturn");
e.appendChild(doc.createTextNode("false"));
functionElement.appendChild(e);
}
if (function.useretval)
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functionElement.appendChild(doc.createElement("use-retval"));
if (function.leakignore)
functionElement.appendChild(doc.createElement("leak-ignore"));
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if (function.gccConst)
functionElement.appendChild(doc.createElement("const"));
if (function.gccPure)
functionElement.appendChild(doc.createElement("pure"));
if (!function.formatstr.scan.isNull()) {
QDomElement e = doc.createElement("formatstr");
e.setAttribute("scan", function.formatstr.scan);
if (!function.formatstr.secure.isNull())
e.setAttribute("secure", function.formatstr.secure);
functionElement.appendChild(e);
}
// Argument info..
foreach(const LibraryData::Function::Arg &arg, function.args) {
QDomElement argElement = doc.createElement("arg");
functionElement.appendChild(argElement);
if (arg.nr == LibraryData::Function::Arg::ANY)
argElement.setAttribute("nr", "any");
else
argElement.setAttribute("nr", arg.nr);
if (arg.notbool)
argElement.appendChild(doc.createElement("not-bool"));
if (arg.notnull)
argElement.appendChild(doc.createElement("not-null"));
if (arg.notuninit)
argElement.appendChild(doc.createElement("not-uninit"));
if (arg.strz)
argElement.appendChild(doc.createElement("strz"));
if (arg.formatstr)
argElement.appendChild(doc.createElement("formatstr"));
if (!arg.valid.isEmpty()) {
QDomElement e = doc.createElement("valid");
e.appendChild(doc.createTextNode(arg.valid));
argElement.appendChild(e);
}
if (!arg.minsize.type.isEmpty()) {
QDomElement e = doc.createElement("minsize");
e.setAttribute("type", arg.minsize.type);
e.setAttribute("arg", arg.minsize.arg);
if (!arg.minsize.arg2.isEmpty())
e.setAttribute("arg2", arg.minsize.arg2);
argElement.appendChild(e);
}
}
return functionElement;
}
static QDomElement MemoryResourceElement(QDomDocument &doc, const LibraryData::MemoryResource &mr)
{
QDomElement element = doc.createElement(mr.type);
foreach(const LibraryData::MemoryResource::Alloc &alloc, mr.alloc) {
QDomElement e = doc.createElement("alloc");
if (alloc.init)
e.setAttribute("init", "true");
e.appendChild(doc.createTextNode(alloc.name));
element.appendChild(e);
}
foreach(const QString &dealloc, mr.dealloc) {
QDomElement e = doc.createElement("dealloc");
e.appendChild(doc.createTextNode(dealloc));
element.appendChild(e);
}
foreach(const QString &use, mr.use) {
QDomElement e = doc.createElement("use");
e.appendChild(doc.createTextNode(use));
element.appendChild(e);
}
return element;
}
QString LibraryData::toString() const
{
QDomDocument doc;
QDomElement root = doc.createElement("def");
doc.appendChild(root);
root.setAttribute("format","2");
foreach(const Define &define, defines) {
QDomElement defineElement = doc.createElement("define");
defineElement.setAttribute("name", define.name);
defineElement.setAttribute("value", define.value);
root.appendChild(defineElement);
}
foreach(const Function &function, functions) {
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foreach(const QString &comment, function.comments) {
root.appendChild(doc.createComment(comment));
}
root.appendChild(FunctionElement(doc, function));
}
foreach(const MemoryResource &mr, memoryresource) {
root.appendChild(MemoryResourceElement(doc, mr));
}
foreach(const PodType &podtype, podtypes) {
QDomElement podtypeElement = doc.createElement("podtype");
podtypeElement.setAttribute("name", podtype.name);
podtypeElement.setAttribute("size", podtype.size);
podtypeElement.setAttribute("sign", podtype.sign);
root.appendChild(podtypeElement);
}
return doc.toString();
}