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Martin Smith authored
This change is a partial fix for the multi-\fn documentation concept. It outputs the documentation once but listing all the function signatures from the \fn commands found in the qdoc comment. Multiple \since commands are not implemented; the \until command is not implemented, and providing text applicable to a specific \fn signature is not implemented. This change requires clang, which means it requires a sequence of other updates as well, so you can't test it unless you have all that stuff. Task-number: QTBUG-60420 Change-Id: Ib316b6f97fa427ef730c4badfc785101bff55dce Reviewed-by:Topi Reiniö <topi.reinio@qt.io>
fd397614
/******************************************************************************** Copyright (C) 2015 The Qt Company Ltd.** Contact: http://www.qt.io/licensing/**** This file is part of the tools applications of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL21$** Commercial License Usage** Licensees holding valid commercial Qt licenses may use this file in** accordance with the commercial license agreement provided with the** Software or, alternatively, in accordance with the terms contained in** a written agreement between you and The Qt Company. For licensing terms** and conditions see http://www.qt.io/terms-conditions. For further** information use the contact form at http://www.qt.io/contact-us.**** GNU Lesser General Public License Usage** Alternatively, this file may be used under the terms of the GNU Lesser** General Public License version 2.1 or version 3 as published by the Free** Software Foundation and appearing in the file LICENSE.LGPLv21 and** LICENSE.LGPLv3 included in the packaging of this file. Please review the** following information to ensure the GNU Lesser General Public License** requirements will be met: https://www.gnu.org/licenses/lgpl.html and** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.**** As a special exception, The Qt Company gives you certain additional** rights. These rights are described in The Qt Company LGPL Exception** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** $QT_END_LICENSE$******************************************************************************//* clangcodeparser.cpp*/#include <qfile.h>#include <stdio.h>#include <errno.h>#include "codechunk.h"#include "config.h"#include "clangcodeparser.h"#include "qdocdatabase.h"#include <qdebug.h>#include <qscopedvaluerollback.h>#include <qelapsedtimer.h>#include <qregularexpression.h>#include <qtemporarydir.h>#include "generator.h"#include <clang-c/Index.h>QT_BEGIN_NAMESPACEstatic CXTranslationUnit_Flags flags_ = (CXTranslationUnit_Flags)0;static CXIndex index_ = 0;/*! Call clang_visitChildren on the given cursor with the lambda as a callback T can be any functor that is callable with a CXCursor parameter and returns a CXChildVisitResult (in other word compatible with function<CXChildVisitResult(CXCursor)> */template <typename T> bool visitChildrenLambda(CXCursor cursor, T &&lambda){ CXCursorVisitor visitor = [](CXCursor c, CXCursor , CXClientData client_data) -> CXChildVisitResult { return (*static_cast<T*>(client_data))(c); }; return clang_visitChildren(cursor, visitor, &lambda);}7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
/*!
convert a CXString to a QString, and dispose the CXString
*/
static QString fromCXString(CXString &&string)
{
QString ret = QString::fromUtf8(clang_getCString(string));
clang_disposeString(string);
return ret;
}
/*!
convert a CXSourceLocation to a qdoc Location
*/
static Location fromCXSourceLocation(CXSourceLocation location)
{
unsigned int line, column;
CXString file;
clang_getPresumedLocation(location, &file, &line, &column);
Location l(fromCXString(std::move(file)));
l.setColumnNo(column);
l.setLineNo(line);
return l;
}
/*!
convert a CX_CXXAccessSpecifier to Node::Access
*/
static Node::Access fromCX_CXXAccessSpecifier(CX_CXXAccessSpecifier spec) {
switch (spec) {
case CX_CXXPrivate: return Node::Private;
case CX_CXXProtected: return Node::Protected;
case CX_CXXPublic: return Node::Public;
default: return Node::Public;
}
}
/*!
Returns the spelling in the file for a source range
*/
static QString getSpelling(CXSourceRange range)
{
auto start = clang_getRangeStart(range);
auto end = clang_getRangeEnd(range);
CXFile file1, file2;
unsigned int offset1, offset2;
clang_getFileLocation(start, &file1, nullptr, nullptr, &offset1);
clang_getFileLocation(end, &file2, nullptr, nullptr, &offset2);
if (file1 != file2 || offset2 <= offset1)
return QString();
QFile file(fromCXString(clang_getFileName(file1)));
if (!file.open(QFile::ReadOnly))
return QString();
file.seek(offset1);
return QString::fromUtf8(file.read(offset2 - offset1));
}
/*!
Returns the function name from a given cursor representing a
function declaration. This is usually clang_getCursorSpelling, but
not for the conversion function in which case it is a bit more complicated
*/
QString functionName(CXCursor cursor)
{
if (clang_getCursorKind(cursor) == CXCursor_ConversionFunction) {
// For a CXCursor_ConversionFunction we don't want the spelling which would be something like
// "operator type-parameter-0-0" or "operator unsigned int".
// we want the actual name as spelled;
QString type = fromCXString(clang_getTypeSpelling(clang_getCursorResultType(cursor)));
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if (type.isEmpty())
return fromCXString(clang_getCursorSpelling(cursor));
return QLatin1String("operator ") + type;
}
QString name = fromCXString(clang_getCursorSpelling(cursor));
// Remove template stuff from constructor and destructor but not from operator<
auto ltLoc = name.indexOf('<');
if (ltLoc > 0 && !name.startsWith("operator<"))
name = name.left(ltLoc);
return name;
}
/*!
Find the node from the QDocDatabase \a qdb that corrseponds to the declaration
represented by the cursor \a cur, if it exists.
*/
static Node *findNodeForCursor(QDocDatabase* qdb, CXCursor cur) {
auto kind = clang_getCursorKind(cur);
if (clang_isInvalid(kind))
return nullptr;
if (kind == CXCursor_TranslationUnit)
return qdb->primaryTreeRoot();
Node *p = findNodeForCursor(qdb, clang_getCursorSemanticParent(cur));
if (!p)
return nullptr;
if (!p->isAggregate())
return nullptr;
auto parent = static_cast<Aggregate *>(p);
switch (kind) {
case CXCursor_Namespace:
return parent->findChildNode(fromCXString(clang_getCursorSpelling(cur)), Node::Namespace);
case CXCursor_StructDecl:
case CXCursor_ClassDecl:
case CXCursor_UnionDecl:
case CXCursor_ClassTemplate:
return parent->findChildNode(fromCXString(clang_getCursorSpelling(cur)), Node::Class);
case CXCursor_FunctionDecl:
case CXCursor_FunctionTemplate:
case CXCursor_CXXMethod:
case CXCursor_Constructor:
case CXCursor_Destructor:
case CXCursor_ConversionFunction: {
NodeList candidates;
parent->findChildren(functionName(cur), candidates);
if (candidates.isEmpty())
return nullptr;
CXType funcType = clang_getCursorType(cur);
auto numArg = clang_getNumArgTypes(funcType);
bool isVariadic = clang_isFunctionTypeVariadic(funcType);
QVarLengthArray<QString, 20> args;
for (Node *candidate : qAsConst(candidates)) {
if (!candidate->isFunction())
continue;
auto fn = static_cast<FunctionNode*>(candidate);
const auto &funcParams = fn->parameters();
const int actualArg = numArg - fn->isPrivateSignal();
if (funcParams.count() != (actualArg + isVariadic))
continue;
if (fn->isConst() != bool(clang_CXXMethod_isConst(cur)))
continue;
if (isVariadic && funcParams.last().dataType() != QLatin1String("..."))
continue;
bool different = false;
for (int i = 0; i < actualArg; i++) {
if (args.size() <= i)
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args.append(fromCXString(clang_getTypeSpelling(clang_getArgType(funcType, i))));
QString t1 = funcParams.at(i).dataType();
QString t2 = args.at(i);
auto p2 = parent;
while (p2 && t1 != t2) {
QString parentScope = p2->name() + QLatin1String("::");
t1 = t1.remove(parentScope);
t2 = t2.remove(parentScope);
p2 = p2->parent();
}
if (t1 != t2) {
different = true;
break;
}
}
if (!different)
return fn;
}
return nullptr;
}
case CXCursor_EnumDecl:
return parent->findChildNode(fromCXString(clang_getCursorSpelling(cur)), Node::Enum);
case CXCursor_FieldDecl:
case CXCursor_VarDecl:
return parent->findChildNode(fromCXString(clang_getCursorSpelling(cur)), Node::Variable);
case CXCursor_TypedefDecl:
return parent->findChildNode(fromCXString(clang_getCursorSpelling(cur)), Node::Typedef);
default:
return nullptr;
}
}
class ClangVisitor {
public:
ClangVisitor(QDocDatabase *qdb, const QSet<QString> &allHeaders)
: qdb_(qdb), parent_(qdb->primaryTreeRoot()), allHeaders_(allHeaders)
{}
CXChildVisitResult visitChildren(CXCursor cursor)
{
auto ret = visitChildrenLambda(cursor, [&](CXCursor cur) {
auto loc = clang_getCursorLocation(cur);
if (clang_Location_isFromMainFile(loc))
return visitSource(cur, loc);
CXFile file;
clang_getFileLocation(loc, &file, nullptr, nullptr, nullptr);
bool isInteresting = false;
auto it = isInterestingCache_.find(file);
if (it != isInterestingCache_.end()) {
isInteresting = *it;
} else {
QFileInfo fi(fromCXString(clang_getFileName(file)));
isInteresting = allHeaders_.contains(fi.canonicalFilePath());
isInterestingCache_[file] = isInteresting;
}
if (isInteresting) {
return visitHeader(cur, loc);
}
return CXChildVisit_Continue;
});
return ret ? CXChildVisit_Break : CXChildVisit_Continue;
}
Node *nodeForCommentAtLocation(CXSourceLocation loc, CXSourceLocation nextCommentLoc);
private:
/*! \class SimpleLoc
Represents a simple location in the main source file,
which can be used as a key in a QMap
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*/
struct SimpleLoc
{
unsigned int line, column;
friend bool operator<(const SimpleLoc &a, const SimpleLoc &b) {
return a.line != b.line ? a.line < b.line : a.column < b.column;
}
};
/*!
\variable ClangVisitor::declMap_
Map of all the declarations in the source file so we can match them
with a documentation comment.
*/
QMap<SimpleLoc, CXCursor> declMap_;
QDocDatabase* qdb_;
Aggregate *parent_;
QSet<QString> allHeaders_;
QHash<CXFile, bool> isInterestingCache_; // doing a canonicalFilePath is slow, so keep a cache.
/*!
Returns true if the symbol should be ignored for the documentation.
*/
bool ignoredSymbol(const QString &symbolName) {
if (symbolName.startsWith(QLatin1String("qt_")))
return true;
if (symbolName == QLatin1String("QPrivateSignal"))
return true;
if (parent_->name() != "QObject" && parent_->name() != "QMetaType"
&& (symbolName == QLatin1String("metaObject") || symbolName == QLatin1String("tr")
|| symbolName == QLatin1String("trUtf8")))
return true;
return false;
}
/*!
The type parameters do not need to be fully qualified
This function removes the ClassName:: if needed.
example: 'QLinkedList::iterator' -> 'iterator'
*/
QString adjustTypeName(const QString &typeName) {
auto parent = parent_->parent();
if (parent && parent->isClass()) {
QStringRef typeNameConstRemoved(&typeName);
if (typeNameConstRemoved.startsWith(QLatin1String("const ")))
typeNameConstRemoved = typeName.midRef(6);
auto parentName = parent->fullName();
if (typeNameConstRemoved.startsWith(parentName)
&& typeNameConstRemoved.mid(parentName.size(), 2) == QLatin1String("::")) {
QString result = typeName;
result.remove(typeNameConstRemoved.position(), parentName.size() + 2);
return result;
}
}
return typeName;
}
CXChildVisitResult visitSource(CXCursor cursor, CXSourceLocation loc);
CXChildVisitResult visitHeader(CXCursor cursor, CXSourceLocation loc);
void parseProperty(const QString &spelling, const Location &loc);
void readParameterNamesAndAttributes(FunctionNode* fn, CXCursor cursor);
Aggregate *getSemanticParent(CXCursor cursor);
};
/*!
Visits a cursor in the .cpp file.
This fills the declMap_
*/
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CXChildVisitResult ClangVisitor::visitSource(CXCursor cursor, CXSourceLocation loc)
{
auto kind = clang_getCursorKind(cursor);
if (clang_isDeclaration(kind)) {
SimpleLoc l;
clang_getPresumedLocation(loc, nullptr, &l.line, &l.column);
declMap_.insert(l, cursor);
return CXChildVisit_Recurse;
}
return CXChildVisit_Continue;
}
/*!
If the semantic and lexical parent cursors of \a cursor are
not the same, find the Aggregate node for the semantic parent
cursor and return it. Otherwise return the current parent.
*/
Aggregate *ClangVisitor::getSemanticParent(CXCursor cursor)
{
CXCursor sp = clang_getCursorSemanticParent(cursor);
CXCursor lp = clang_getCursorLexicalParent(cursor);
if (!clang_equalCursors(sp, lp) && clang_isDeclaration(clang_getCursorKind(sp))) {
Node* spn = findNodeForCursor(qdb_, sp);
if (spn && spn->isAggregate()) {
return static_cast<Aggregate*>(spn);
}
}
return parent_;
}
CXChildVisitResult ClangVisitor::visitHeader(CXCursor cursor, CXSourceLocation loc)
{
auto kind = clang_getCursorKind(cursor);
switch (kind) {
case CXCursor_TypeAliasDecl: {
QString spelling = getSpelling(clang_getCursorExtent(cursor));
QStringList typeAlias = spelling.split(QChar('='));
if (typeAlias.size() == 2) {
typeAlias[0] = typeAlias[0].trimmed();
typeAlias[1] = typeAlias[1].trimmed();
int lastBlank = typeAlias[0].lastIndexOf(QChar(' '));
if (lastBlank > 0) {
typeAlias[0] = typeAlias[0].right(typeAlias[0].size() - (lastBlank + 1));
TypeAliasNode* ta = new TypeAliasNode(parent_, typeAlias[0], typeAlias[1]);
ta->setAccess(fromCX_CXXAccessSpecifier(clang_getCXXAccessSpecifier(cursor)));
ta->setLocation(fromCXSourceLocation(clang_getCursorLocation(cursor)));
}
}
return CXChildVisit_Continue;
}
case CXCursor_StructDecl:
case CXCursor_UnionDecl:
if (fromCXString(clang_getCursorSpelling(cursor)).isEmpty()) // anonymous struct or union
return CXChildVisit_Continue;
case CXCursor_ClassDecl:
case CXCursor_ClassTemplate: {
if (!clang_isCursorDefinition(cursor))
return CXChildVisit_Continue;
if (findNodeForCursor(qdb_, cursor)) // Was already parsed, propably in another translation unit
return CXChildVisit_Continue;
QString className = fromCXString(clang_getCursorSpelling(cursor));
Aggregate* semanticParent = getSemanticParent(cursor);
if (semanticParent && semanticParent->findChildNode(className, Node::Class)) {
return CXChildVisit_Continue;
}
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ClassNode *classe = new ClassNode(semanticParent, className);
classe->setAccess(fromCX_CXXAccessSpecifier(clang_getCXXAccessSpecifier(cursor)));
classe->setLocation(fromCXSourceLocation(clang_getCursorLocation(cursor)));
if (kind == CXCursor_ClassTemplate) {
QString displayName = fromCXString(clang_getCursorSpelling(cursor));
classe->setTemplateStuff(displayName.mid(className.size()));
}
QScopedValueRollback<Aggregate *> setParent(parent_, classe);
return visitChildren(cursor);
}
case CXCursor_CXXBaseSpecifier: {
if (!parent_->isClass())
return CXChildVisit_Continue;
auto access = fromCX_CXXAccessSpecifier(clang_getCXXAccessSpecifier(cursor));
auto type = clang_getCursorType(cursor);
auto baseCursor = clang_getTypeDeclaration(type);
auto baseNode = findNodeForCursor(qdb_, baseCursor);
auto classe = static_cast<ClassNode*>(parent_);
if (!baseNode || !baseNode->isClass()) {
QString bcName = fromCXString(clang_getCursorSpelling(baseCursor));
classe->addUnresolvedBaseClass(access, QStringList(bcName), bcName);
return CXChildVisit_Continue;
}
auto baseClasse = static_cast<ClassNode*>(baseNode);
classe->addResolvedBaseClass(access, baseClasse);
return CXChildVisit_Continue;
}
case CXCursor_Namespace: {
QString namespaceName = fromCXString(clang_getCursorDisplayName(cursor));
NamespaceNode* ns = 0;
if (parent_)
ns = static_cast<NamespaceNode*>(parent_->findChildNode(namespaceName, Node::Namespace));
if (!ns) {
ns = new NamespaceNode(parent_, namespaceName);
ns->setAccess(Node::Public);
ns->setLocation(fromCXSourceLocation(clang_getCursorLocation(cursor)));
}
QScopedValueRollback<Aggregate *> setParent(parent_, ns);
return visitChildren(cursor);
}
case CXCursor_FunctionDecl:
case CXCursor_FunctionTemplate:
case CXCursor_CXXMethod:
case CXCursor_Constructor:
case CXCursor_Destructor:
case CXCursor_ConversionFunction: {
if (findNodeForCursor(qdb_, cursor)) // Was already parsed, propably in another translation unit
return CXChildVisit_Continue;
QString name = functionName(cursor);
if (ignoredSymbol(name))
return CXChildVisit_Continue;
CXType funcType = clang_getCursorType(cursor);
FunctionNode* fn = new FunctionNode(Node::Function, parent_, name, false);
fn->setAccess(fromCX_CXXAccessSpecifier(clang_getCXXAccessSpecifier(cursor)));
fn->setLocation(fromCXSourceLocation(clang_getCursorLocation(cursor)));
if (kind == CXCursor_Constructor
// a constructor template is classified as CXCursor_FunctionTemplate
|| (kind == CXCursor_FunctionTemplate && name == parent_->name()))
fn->setMetaness(FunctionNode::Ctor);
else if (kind == CXCursor_Destructor)
fn->setMetaness(FunctionNode::Dtor);
else
fn->setReturnType(adjustTypeName(fromCXString(
clang_getTypeSpelling(clang_getResultType(funcType)))));
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fn->setStatic(clang_CXXMethod_isStatic(cursor));
fn->setConst(clang_CXXMethod_isConst(cursor));
fn->setVirtualness(!clang_CXXMethod_isVirtual(cursor) ? FunctionNode::NonVirtual
: clang_CXXMethod_isPureVirtual(cursor) ? FunctionNode::PureVirtual
: FunctionNode::NormalVirtual);
CXRefQualifierKind refQualKind = clang_Type_getCXXRefQualifier(funcType);
if (refQualKind == CXRefQualifier_LValue)
fn->setRef(true);
else if (refQualKind == CXRefQualifier_RValue)
fn->setRefRef(true);
// For virtual functions, determine what it overrides
// (except for destructor for which we do not want to classify as overridden)
if (!fn->isNonvirtual() && kind != CXCursor_Destructor) {
CXCursor *overridden;
unsigned int numOverridden = 0;
clang_getOverriddenCursors(cursor, &overridden, &numOverridden);
for (uint i = 0; i < numOverridden; ++i) {
auto n = findNodeForCursor(qdb_, overridden[i]);
if (n && n->isFunction()) {
fn->setReimplementedFrom(static_cast<FunctionNode *>(n));
}
}
clang_disposeOverriddenCursors(overridden);
}
auto numArg = clang_getNumArgTypes(funcType);
QVector<Parameter> pvect;
pvect.reserve(numArg);
for (int i = 0; i < numArg; ++i) {
CXType argType = clang_getArgType(funcType, i);
if (fn->isCtor()) {
if (fromCXString(clang_getTypeSpelling(clang_getPointeeType(argType))) == name) {
if (argType.kind == CXType_RValueReference)
fn->setMetaness(FunctionNode::MCtor);
else if (argType.kind == CXType_LValueReference)
fn->setMetaness(FunctionNode::CCtor);
}
} else if ((kind == CXCursor_CXXMethod) && (name == QLatin1String("operator="))) {
if (argType.kind == CXType_RValueReference)
fn->setMetaness(FunctionNode::MAssign);
else if (argType.kind == CXType_LValueReference)
fn->setMetaness(FunctionNode::CAssign);
}
pvect.append(Parameter(adjustTypeName(fromCXString(clang_getTypeSpelling(argType)))));
}
if (pvect.size() > 0 && pvect.last().dataType().endsWith(QLatin1String("::QPrivateSignal"))) {
pvect.pop_back(); // remove the QPrivateSignal argument
fn->setPrivateSignal();
}
if (clang_isFunctionTypeVariadic(funcType))
pvect.append(Parameter(QStringLiteral("...")));
fn->setParameters(pvect);
readParameterNamesAndAttributes(fn, cursor);
return CXChildVisit_Continue;
}
#if CINDEX_VERSION >= 36
case CXCursor_FriendDecl: {
// Friend functions are declared in the enclosing namespace
Aggregate *ns = parent_;
while (ns && ns->isClass())
ns = ns->parent();
QScopedValueRollback<Aggregate *> setParent(parent_, ns);
// Visit the friend functions
return visitChildren(cursor);
}
#endif
case CXCursor_EnumDecl: {
if (findNodeForCursor(qdb_, cursor)) // Was already parsed, propably in another tu
return CXChildVisit_Continue;
QString enumTypeName = fromCXString(clang_getCursorSpelling(cursor));
if (enumTypeName.isEmpty())
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enumTypeName = "anonymous";
auto en = new EnumNode(parent_, enumTypeName);
en->setAccess(fromCX_CXXAccessSpecifier(clang_getCXXAccessSpecifier(cursor)));
en->setLocation(fromCXSourceLocation(clang_getCursorLocation(cursor)));
// Enum values
visitChildrenLambda(cursor, [&](CXCursor cur) {
if (clang_getCursorKind(cur) != CXCursor_EnumConstantDecl)
return CXChildVisit_Continue;
QString value;
visitChildrenLambda(cur, [&](CXCursor cur) {
if (clang_isExpression(clang_getCursorKind(cur))) {
value = getSpelling(clang_getCursorExtent(cur));
return CXChildVisit_Break;
}
return CXChildVisit_Continue;
});
if (value.isEmpty()) {
QLatin1String hex("0x");
if (!en->items().isEmpty() && en->items().last().value().startsWith(hex)) {
value = hex + QString::number(clang_getEnumConstantDeclValue(cur), 16);
} else {
value = QString::number(clang_getEnumConstantDeclValue(cur));
}
}
en->addItem(EnumItem(fromCXString(clang_getCursorSpelling(cur)), value));
return CXChildVisit_Continue;
});
return CXChildVisit_Continue;
}
case CXCursor_FieldDecl:
case CXCursor_VarDecl: {
if (findNodeForCursor(qdb_, cursor)) // Was already parsed, propably in another translation unit
return CXChildVisit_Continue;
auto access = fromCX_CXXAccessSpecifier(clang_getCXXAccessSpecifier(cursor));
auto var = new VariableNode(parent_, fromCXString(clang_getCursorSpelling(cursor)));
var->setAccess(access);
var->setLocation(fromCXSourceLocation(clang_getCursorLocation(cursor)));
var->setLeftType(fromCXString(clang_getTypeSpelling(clang_getCursorType(cursor))));
var->setStatic(kind == CXCursor_VarDecl && parent_->isClass());
return CXChildVisit_Continue;
}
case CXCursor_TypedefDecl: {
if (findNodeForCursor(qdb_, cursor)) // Was already parsed, propably in another translation unit
return CXChildVisit_Continue;
TypedefNode* td = new TypedefNode(parent_, fromCXString(clang_getCursorSpelling(cursor)));
td->setAccess(fromCX_CXXAccessSpecifier(clang_getCXXAccessSpecifier(cursor)));
td->setLocation(fromCXSourceLocation(clang_getCursorLocation(cursor)));
// Search to see if this is a Q_DECLARE_FLAGS (if the type is QFlags<ENUM>)
visitChildrenLambda(cursor, [&](CXCursor cur) {
if (clang_getCursorKind(cur) != CXCursor_TemplateRef
|| fromCXString(clang_getCursorSpelling(cur)) != QLatin1String("QFlags"))
return CXChildVisit_Continue;
// Found QFlags<XXX>
visitChildrenLambda(cursor, [&](CXCursor cur) {
if (clang_getCursorKind(cur) != CXCursor_TypeRef)
return CXChildVisit_Continue;
auto *en = findNodeForCursor(qdb_, clang_getTypeDeclaration(clang_getCursorType(cur)));
if (en && en->isEnumType())
static_cast<EnumNode*>(en)->setFlagsType(td);
return CXChildVisit_Break;
});
return CXChildVisit_Break;
});
return CXChildVisit_Continue;
}
default:
if (clang_isDeclaration(kind) && parent_->isClass()) {
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// maybe a static_assert (which is not exposed from the clang API)
QString spelling = getSpelling(clang_getCursorExtent(cursor));
if (spelling.startsWith(QLatin1String("Q_PROPERTY"))
|| spelling.startsWith(QLatin1String("QDOC_PROPERTY"))
|| spelling.startsWith(QLatin1String("Q_OVERRIDE"))) {
parseProperty(spelling, fromCXSourceLocation(loc));
}
}
return CXChildVisit_Continue;
}
}
void ClangVisitor::readParameterNamesAndAttributes(FunctionNode* fn, CXCursor cursor)
{
auto pvect = fn->parameters();
// Visit the parameters and attributes
int i = 0;
visitChildrenLambda(cursor, [&](CXCursor cur) {
auto kind = clang_getCursorKind(cur);
if (kind == CXCursor_AnnotateAttr) {
QString annotation = fromCXString(clang_getCursorDisplayName(cur));
if (annotation == QLatin1String("qt_slot")) {
fn->setMetaness(FunctionNode::Slot);
} else if (annotation == QLatin1String("qt_signal")) {
fn->setMetaness(FunctionNode::Signal);
}
} else if (kind == CXCursor_ParmDecl) {
if (i >= pvect.count())
return CXChildVisit_Break; // Attributes comes before parameters so we can break.
QString name = fromCXString(clang_getCursorSpelling(cur));
if (!name.isEmpty())
pvect[i].setName(name);
// Find the default value
visitChildrenLambda(cur, [&](CXCursor cur) {
if (clang_isExpression(clang_getCursorKind(cur))) {
QString defaultValue = getSpelling(clang_getCursorExtent(cur));
if (defaultValue.startsWith('=')) // In some cases, the = is part of the range.
defaultValue = defaultValue.midRef(1).trimmed().toString();
if (defaultValue.isEmpty())
defaultValue = QStringLiteral("...");
pvect[i].setDefaultValue(defaultValue);
return CXChildVisit_Break;
}
return CXChildVisit_Continue;
});
i++;
}
return CXChildVisit_Continue;
});
fn->setParameters(pvect);
}
void ClangVisitor::parseProperty(const QString& spelling, const Location& loc)
{
const QLatin1String metaKeyword("READ|WRITE|CONSTANT|FINAL|REVISION|MEMBER|RESET|SCRIPTABLE|STORED|WRITE|DESIGNABLE|EDITABLE|NOTIFY|USER");
static QRegularExpression typeNameRx(QLatin1String("^[^(]*\\((?<type>.*?)\\s*(?<name>[a-zA-Z0-9_]+)\\s+(")
+ metaKeyword + QLatin1String(")\\s"));
auto match = typeNameRx.match(spelling);
if (!match.hasMatch()) {
qWarning() << "(qdoc) ERROR PARSING " << spelling;
return;
}
auto type = match.captured(QStringLiteral("type"));
auto name = match.captured(QStringLiteral("name"));
auto *property = new PropertyNode(parent_, name);
property->setAccess(Node::Public);
property->setLocation(loc);
property->setDataType(type);
701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770
static QRegularExpression nextKeyword(QLatin1String("\\s(?<key>") + metaKeyword
+ QLatin1String(")\\s+(?<value>.*?)(\\s*\\)$|\\s+(") + metaKeyword + QLatin1String("))"));
int pos = match.capturedEnd(QStringLiteral("name"));
while ((match = nextKeyword.match(spelling, pos)).hasMatch()) {
pos = match.capturedEnd(QStringLiteral("value"));
auto key = match.capturedRef(QStringLiteral("key"));
auto value = match.captured(QStringLiteral("value"));
// Keywords with no associated values
if (key == "CONSTANT") {
property->setConstant();
} else if (key == "FINAL") {
property->setFinal();
} else if (key == "READ") {
qdb_->addPropertyFunction(property, value, PropertyNode::Getter);
} else if (key == "WRITE") {
qdb_->addPropertyFunction(property, value, PropertyNode::Setter);
property->setWritable(true);
} else if (key == "STORED") {
property->setStored(value.toLower() == "true");
} else if (key == "DESIGNABLE") {
QString v = value.toLower();
if (v == "true")
property->setDesignable(true);
else if (v == "false")
property->setDesignable(false);
else {
property->setDesignable(false);
property->setRuntimeDesFunc(value);
}
} else if (key == "RESET") {
qdb_->addPropertyFunction(property, value, PropertyNode::Resetter);
} else if (key == "NOTIFY") {
qdb_->addPropertyFunction(property, value, PropertyNode::Notifier);
} else if (key == "REVISION") {
int revision;
bool ok;
revision = value.toInt(&ok);
if (ok)
property->setRevision(revision);
else
loc.warning(ClangCodeParser::tr("Invalid revision number: %1").arg(value));
} else if (key == "SCRIPTABLE") {
QString v = value.toLower();
if (v == "true")
property->setScriptable(true);
else if (v == "false")
property->setScriptable(false);
else {
property->setScriptable(false);
property->setRuntimeScrFunc(value);
}
}
}
}
/*!
Given a comment at location \a loc, return a Node for this comment
\a nextCommentLoc is the location of the next comment so the declaration
must be inbetween.
Returns nullptr if no suitable declaration was found between the two comments.
*/
Node* ClangVisitor::nodeForCommentAtLocation(CXSourceLocation loc, CXSourceLocation nextCommentLoc)
{
ClangVisitor::SimpleLoc docloc;
clang_getPresumedLocation(loc, nullptr, &docloc.line, &docloc.column);
auto decl_it = declMap_.upperBound(docloc);
if (decl_it == declMap_.end())
return nullptr;
unsigned int declLine = decl_it.key().line;
771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840
unsigned int nextCommentLine;
clang_getPresumedLocation(nextCommentLoc, nullptr, &nextCommentLine, nullptr);
if (nextCommentLine < declLine)
return nullptr; // there is another comment before the declaration, ignore it.
// make sure the previous decl was finished.
if (decl_it != declMap_.begin()) {
CXSourceLocation prevDeclEnd = clang_getRangeEnd(clang_getCursorExtent(*(decl_it-1)));
unsigned int prevDeclLine;
clang_getPresumedLocation(prevDeclEnd, nullptr, &prevDeclLine, nullptr);
if (prevDeclLine >= docloc.line) {
// The previous declaration was still going. This is only valid if the previous
// declaration is a parent of the next declaration.
auto parent = clang_getCursorLexicalParent(*decl_it);
if (!clang_equalCursors(parent, *(decl_it-1)))
return nullptr;
}
}
auto *node = findNodeForCursor(qdb_, *decl_it);
// borrow the parameter name from the definition
if (node && node->isFunction())
readParameterNamesAndAttributes(static_cast<FunctionNode*>(node), *decl_it);
return node;
}
/*!
The destructor is trivial.
*/
ClangCodeParser::~ClangCodeParser()
{
// nothing.
}
/*!
Get the include paths from the qdoc configuration database
\a config. Call the initializeParser() in the base class.
Get the defines list from the qdocconf database.
*/
void ClangCodeParser::initializeParser(const Config &config)
{
const auto args = config.getStringList(CONFIG_INCLUDEPATHS);
includePaths_.resize(args.size());
std::transform(args.begin(), args.end(), includePaths_.begin(),
[](const QString &s) { return s.toUtf8(); });
CppCodeParser::initializeParser(config);
pchFileDir_.reset(nullptr);
allHeaders_.clear();
pchName_.clear();
defines_.clear();
QSet<QString> accepted;
{
const QStringList tmpDefines = config.getStringList(CONFIG_CLANGDEFINES);
for (const QString &def : tmpDefines) {
if (!accepted.contains(def)) {
QByteArray tmp("-D");
tmp.append(def.toUtf8());
defines_.append(tmp.constData());
accepted.insert(def);
}
}
}
{
const QStringList tmpDefines = config.getStringList(CONFIG_DEFINES);
for (const QString &def : tmpDefines) {
if (!accepted.contains(def) && !def.contains(QChar('*'))) {
QByteArray tmp("-D");
tmp.append(def.toUtf8());
defines_.append(tmp.constData());
accepted.insert(def);
}
841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910
}
}
}
/*!
*/
void ClangCodeParser::terminateParser()
{
CppCodeParser::terminateParser();
}
/*!
*/
QString ClangCodeParser::language()
{
return "Clang";
}
/*!
Returns a list of extensions for header files.
*/
QStringList ClangCodeParser::headerFileNameFilter()
{
return QStringList() << "*.ch" << "*.h" << "*.h++" << "*.hh" << "*.hpp" << "*.hxx";
}
/*!
Returns a list of extensions for source files, i.e. not
header files.
*/
QStringList ClangCodeParser::sourceFileNameFilter()
{
return QStringList() << "*.c++" << "*.cc" << "*.cpp" << "*.cxx" << "*.mm";
}
/*!
Parse the C++ header file identified by \a filePath and add
the parsed contents to the database. The \a location is used
for reporting errors.
*/
void ClangCodeParser::parseHeaderFile(const Location & /*location*/, const QString &filePath)
{
QFileInfo fi(filePath);
allHeaders_.insert(fi.canonicalFilePath());
}
static const char *defaultArgs_[] = {
"-std=c++14",
"-fPIC",
"-fno-exceptions", // Workaround for clang bug http://reviews.llvm.org/D17988
"-DQ_QDOC",
"-DQT_DISABLE_DEPRECATED_BEFORE=0",
"-DQT_ANNOTATE_CLASS(type,...)=static_assert(sizeof(#__VA_ARGS__), #type);",
"-DQT_ANNOTATE_CLASS2(type,a1,a2)=static_assert(sizeof(#a1, #a2), #type);",
"-DQT_ANNOTATE_FUNCTION(a)=__attribute__((annotate(#a)))",
"-DQT_ANNOTATE_ACCESS_SPECIFIER(a)=__attribute__((annotate(#a)))",
"-Wno-constant-logical-operand",
#ifdef Q_OS_WIN
"-fms-compatibility-version=19",
#endif
"-I" CLANG_RESOURCE_DIR
};
/*!
Load the default arguments and the defines into \a args.
Clear \a args first.
*/
void ClangCodeParser::getDefaultArgs()
{
args_.clear();
911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980
args_.insert(args_.begin(), std::begin(defaultArgs_), std::end(defaultArgs_));
// Add the defines from the qdocconf file.
for (const auto &p : qAsConst(defines_))
args_.push_back(p.constData());
}
/*!
Load the include paths into \a moreArgs.
*/
void ClangCodeParser::getMoreArgs()
{
if (includePaths_.isEmpty() || includePaths_.at(0) != QByteArray("-I")) {
/*
The include paths provided are inadequate. Make a list
of reasonable places to look for include files and use
that list instead.
*/
QList<QString> headers = allHeaders_.values();
QString filePath = headers.at(0);
auto forest = qdb_->searchOrder();
QByteArray version = qdb_->version().toUtf8();
QString basicIncludeDir = QDir::cleanPath(QString(Config::installDir + "/../include"));
moreArgs_ += "-I" + basicIncludeDir.toLatin1();
moreArgs_ += "-I" + QDir::cleanPath(QString(filePath + "/../")).toLatin1();
moreArgs_ += "-I" + QDir::cleanPath(QString(filePath + "/../../")).toLatin1();
for (const auto &s : forest) {
QString module = basicIncludeDir +"/" + s->camelCaseModuleName();
moreArgs_ += QString("-I" + module).toLatin1();
moreArgs_ += QString("-I" + module + "/" + qdb_->version()).toLatin1();
moreArgs_ += QString("-I" + module + "/" + qdb_->version() + "/" + module).toLatin1();
}
for (int i=0; i<includePaths_.size(); ++i) {
if (!includePaths_.at(i).startsWith("-"))
moreArgs_ += "-I" + includePaths_.at(i);
else
moreArgs_ += includePaths_.at(i);
}
}
else {
moreArgs_ = includePaths_;
}
}
/*!
Building the PCH must be possible when there are no .cpp
files, so it is moved here to its own member function, and
it is called after the list of header files is complete.
*/
void ClangCodeParser::buildPCH()
{
if (!pchFileDir_) {
pchFileDir_.reset(new QTemporaryDir(QDir::tempPath() + QLatin1String("/qdoc_pch")));
if (pchFileDir_->isValid()) {
//const QByteArray module = qdb_->primaryTreeRoot()->tree()->camelCaseModuleName().toUtf8();
const QByteArray module = moduleHeader().toUtf8();
QByteArray header;
QByteArray privateHeaderDir;
// Find the path to the module's header (e.g. QtGui/QtGui) to be used
// as pre-compiled header
for (const auto &p : qAsConst(includePaths_)) {
if (p.endsWith(module)) {
QByteArray candidate = p + "/" + module;
if (QFile::exists(QString::fromUtf8(candidate))) {
header = candidate;
break;
}
}
}
if (header.isEmpty()) {
981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050
for (const auto &p : qAsConst(includePaths_)) {
QByteArray candidate = p + "/" + module;
if (QFile::exists(QString::fromUtf8(candidate))) {
header = candidate;
break;
}
}
}
// Find the path to the module's private header directory (e.g.
// include/QtGui/5.8.0/QtGui/private) to use for including all
// the private headers in the PCH.
for (const auto &p : qAsConst(includePaths_)) {
if (p.endsWith(module)) {
QByteArray candidate = p + "/private";
if (QFile::exists(QString::fromUtf8(candidate))) {
privateHeaderDir = candidate;
break;
}
}
}
if (header.isEmpty()) {
QByteArray installDocDir = Config::installDir.toUtf8();
const QByteArray candidate = installDocDir + "/../include/" + module + "/" + module;
if (QFile::exists(QString::fromUtf8(candidate)))
header = candidate;
}
if (header.isEmpty()) {
qWarning() << "(qdoc) Could not find the module header in the include path for module"
<< module << " (include paths: "<< includePaths_ << ")";
} else {
args_.push_back("-xc++");
CXTranslationUnit tu;
QString tmpHeader = pchFileDir_->path() + "/" + module;
if (QFile::copy(header, tmpHeader) && !privateHeaderDir.isEmpty()) {
privateHeaderDir = QDir::cleanPath(privateHeaderDir.constData()).toLatin1();
const char *const headerPath = privateHeaderDir.constData();
const QStringList pheaders = QDir(headerPath).entryList();
QFile tmpHeaderFile(tmpHeader);
if (tmpHeaderFile.open(QIODevice::Text | QIODevice::Append)) {
for (const QString &phead : pheaders) {
if (phead.endsWith("_p.h")) {
QByteArray entry;
entry = "#include \"";
entry += headerPath;
entry += QChar('/');
entry += phead;
entry += "\"\n";
tmpHeaderFile.write(entry);
}
}
}
}
CXErrorCode err = clang_parseTranslationUnit2(index_,
tmpHeader.toLatin1().data(),
args_.data(), args_.size(), nullptr, 0,
flags_ | CXTranslationUnit_ForSerialization, &tu);
if (!err && tu) {
pchName_ = pchFileDir_->path().toUtf8() + "/" + module + ".pch";
auto error = clang_saveTranslationUnit(tu, pchName_.constData(), clang_defaultSaveOptions(tu));
if (error) {
qWarning() << "(qdoc) Could not save PCH file for " << module << error;
pchName_.clear();
}
// Visit the header now, as token from pre-compiled header won't be visited later
CXCursor cur = clang_getTranslationUnitCursor(tu);
ClangVisitor visitor(qdb_, allHeaders_);
visitor.visitChildren(cur);
clang_disposeTranslationUnit(tu);
} else {
1051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120
pchFileDir_->remove();
qWarning() << "(qdoc) Could not create PCH file for "
<< tmpHeader
<< " error code:" << err;
}
args_.pop_back(); // remove the "-xc++";
}
}
qdb_->resolveInheritance();
}
}
/*!
Precompile the header files for the current module.
*/
void ClangCodeParser::precompileHeaders()
{
getDefaultArgs();
getMoreArgs();
for (const auto &p : qAsConst(moreArgs_))
args_.push_back(p.constData());
flags_ = (CXTranslationUnit_Flags) (CXTranslationUnit_Incomplete | CXTranslationUnit_SkipFunctionBodies | CXTranslationUnit_KeepGoing);
index_ = clang_createIndex(1, 0);
buildPCH();
clang_disposeIndex(index_);
}
/*!
Get ready to parse the C++ cpp file identified by \a filePath
and add its parsed contents to the database. \a location is
used for reporting errors.
Call matchDocsAndStuff() to do all the parsing and tree building.
*/
void ClangCodeParser::parseSourceFile(const Location& /*location*/, const QString& filePath)
{
currentFile_ = filePath;
flags_ = (CXTranslationUnit_Flags) (CXTranslationUnit_Incomplete | CXTranslationUnit_SkipFunctionBodies | CXTranslationUnit_KeepGoing);
index_ = clang_createIndex(1, 0);
getDefaultArgs();
if (!pchName_.isEmpty() && !filePath.endsWith(".mm")) {
args_.push_back("-w");
args_.push_back("-include-pch");
args_.push_back(pchName_.constData());
}
for (const auto &p : qAsConst(moreArgs_))
args_.push_back(p.constData());
CXTranslationUnit tu;
CXErrorCode err = clang_parseTranslationUnit2(index_, filePath.toLocal8Bit(), args_.data(),
args_.size(), nullptr, 0, flags_, &tu);
if (err || !tu) {
qWarning() << "(qdoc) Could not parse " << filePath << " error code:" << err;
clang_disposeIndex(index_);
return;
}
CXCursor cur = clang_getTranslationUnitCursor(tu);
ClangVisitor visitor(qdb_, allHeaders_);
visitor.visitChildren(cur);
CXToken *tokens;
unsigned int numTokens = 0;
clang_tokenize(tu, clang_getCursorExtent(cur), &tokens, &numTokens);
const QSet<QString>& topicCommandsAllowed = topicCommands();
const QSet<QString>& otherMetacommandsAllowed = otherMetaCommands();
const QSet<QString>& metacommandsAllowed = topicCommandsAllowed + otherMetacommandsAllowed;
1121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190
for (unsigned int i = 0; i < numTokens; ++i) {
if (clang_getTokenKind(tokens[i]) != CXToken_Comment)
continue;
QString comment = fromCXString(clang_getTokenSpelling(tu, tokens[i]));
if (!comment.startsWith("/*!"))
continue;
auto loc = fromCXSourceLocation(clang_getTokenLocation(tu, tokens[i]));
auto end_loc = fromCXSourceLocation(clang_getRangeEnd(clang_getTokenExtent(tu, tokens[i])));
Doc::trimCStyleComment(loc,comment);
Doc doc(loc, end_loc, comment, metacommandsAllowed, topicCommandsAllowed);
/*
* Doc parses the comment.
*/
QString topic;
bool isQmlPropertyTopic = false;
bool isJsPropertyTopic = false;
const TopicList& topics = doc.topicsUsed();
if (!topics.isEmpty()) {
topic = topics[0].topic;
if (topic.startsWith("qml")) {
if ((topic == COMMAND_QMLPROPERTY) ||
(topic == COMMAND_QMLPROPERTYGROUP) ||
(topic == COMMAND_QMLATTACHEDPROPERTY)) {
isQmlPropertyTopic = true;
}
} else if (topic.startsWith("js")) {
if ((topic == COMMAND_JSPROPERTY) ||
(topic == COMMAND_JSPROPERTYGROUP) ||
(topic == COMMAND_JSATTACHEDPROPERTY)) {
isJsPropertyTopic = true;
}
}
}
NodeList nodes;
DocList docs;
if (topic.isEmpty()) {
CXSourceLocation commentLoc = clang_getTokenLocation(tu, tokens[i]);
Node *n = nullptr;
if (i + 1 < numTokens) {
// Try to find the next declaration.
CXSourceLocation nextCommentLoc = commentLoc;
while (i + 2 < numTokens && clang_getTokenKind(tokens[i+1]) != CXToken_Comment)
++i; // already skip all the tokens that are not comments
nextCommentLoc = clang_getTokenLocation(tu, tokens[i+1]);
n = visitor.nodeForCommentAtLocation(commentLoc, nextCommentLoc);
}
if (n) {
nodes.append(n);
docs.append(doc);
} else if (CodeParser::isWorthWarningAbout(doc)) {
doc.location().warning(tr("Cannot tie this documentation to anything"),
tr("I found a /*! ... */ comment, but there was no "
"topic command (e.g., '\\%1', '\\%2') in the "
"comment and no function definition following "
"the comment.")
.arg(COMMAND_FN).arg(COMMAND_PAGE));
}
} else if (isQmlPropertyTopic || isJsPropertyTopic) {
Doc nodeDoc = doc;
processQmlProperties(nodeDoc, nodes, docs, isJsPropertyTopic);
} else {
ArgList args;
1191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260
const QSet<QString>& topicCommandsUsed = topicCommandsAllowed & doc.metaCommandsUsed();
if (topicCommandsUsed.count() > 0) {
topic = *topicCommandsUsed.constBegin();
args = doc.metaCommandArgs(topic);
}
if (topicCommandsUsed.count() > 1) {
QString topicList;
QSet<QString>::ConstIterator t = topicCommandsUsed.constBegin();
while (t != topicCommandsUsed.constEnd()) {
topicList += " \\" + *t + QLatin1Char(',');
++t;
}
topicList[topicList.lastIndexOf(',')] = '.';
int i = topicList.lastIndexOf(',');
topicList[i] = ' ';
topicList.insert(i+1,"and");
doc.location().warning(tr("Multiple topic commands found in comment: %1").arg(topicList));
}
ArgList::ConstIterator a = args.constBegin();
Node *node = 0;
SharedCommentNode* scn = 0;
int count = args.size();
while (a != args.constEnd()) {
Doc nodeDoc = doc;
if ((count > 1) && (topic == COMMAND_FN)) {
node = processFnCommand(*a, doc);
if (node != 0) {
if (scn == 0) {
scn = new SharedCommentNode(node->parent(), count);
nodes.append(scn);
docs.append(nodeDoc);
}
scn->append(node);
node->setCollectiveNode(scn);
}
}
else {
node = processTopicCommand(nodeDoc, topic, *a);
if (node != 0) {
nodes.append(node);
docs.append(nodeDoc);
}
}
++a;
}
}
NodeList::Iterator n = nodes.begin();
QList<Doc>::Iterator d = docs.begin();
while (n != nodes.end()) {
processOtherMetaCommands(*d, *n);
(*n)->setDoc(*d);
checkModuleInclusion(*n);
if ((*n)->isAggregate() && ((Aggregate *)*n)->includes().isEmpty()) {
Aggregate *m = static_cast<Aggregate *>(*n);
while (m->parent() && m->physicalModuleName().isEmpty()) {
m = m->parent();
}
if (m == *n)
((Aggregate *)*n)->addInclude((*n)->name());
else
((Aggregate *)*n)->setIncludes(m->includes());
}
++d;
++n;
}
}
clang_disposeTokens(tu, tokens, numTokens);
clang_disposeTranslationUnit(tu);
12611262126312641265
clang_disposeIndex(index_);
}
QT_END_NAMESPACE