Commit a446e067 authored by Roberto Raggi's avatar Roberto Raggi
Browse files

Moved CheckUndefinedSymbols in libCPlusPlus

parent 7c88b3e9
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
**
**************************************************************************/
#include "CheckUndefinedSymbols.h"
#include "Overview.h"
#include <Names.h>
#include <Literals.h>
#include <Symbols.h>
#include <TranslationUnit.h>
#include <Scope.h>
#include <AST.h>
using namespace CPlusPlus;
CheckUndefinedSymbols::CheckUndefinedSymbols(Document::Ptr doc)
: ASTVisitor(doc->control()), _doc(doc)
{ }
CheckUndefinedSymbols::~CheckUndefinedSymbols()
{ }
void CheckUndefinedSymbols::setGlobalNamespaceBinding(NamespaceBindingPtr globalNamespaceBinding)
{
_globalNamespaceBinding = globalNamespaceBinding;
_types.clear();
if (_globalNamespaceBinding) {
QSet<NamespaceBinding *> processed;
buildTypeMap(_globalNamespaceBinding.data(), &processed);
}
}
void CheckUndefinedSymbols::operator()(AST *ast)
{ accept(ast); }
void CheckUndefinedSymbols::addType(Name *name)
{
if (! name)
return;
if (Identifier *id = name->identifier())
_types.insert(QByteArray(id->chars(), id->size()));
}
void CheckUndefinedSymbols::buildTypeMap(Class *klass)
{
addType(klass->name());
for (unsigned i = 0; i < klass->memberCount(); ++i) {
Symbol *member = klass->memberAt(i);
if (Class *klass = member->asClass()) {
buildTypeMap(klass);
} else if (Enum *e = member->asEnum()) {
addType(e->name());
} else if (ForwardClassDeclaration *fwd = member->asForwardClassDeclaration()) {
addType(fwd->name());
} else if (Declaration *decl = member->asDeclaration()) {
if (decl->isTypedef())
addType(decl->name());
}
}
}
void CheckUndefinedSymbols::buildTypeMap(NamespaceBinding *binding, QSet<NamespaceBinding *> *processed)
{
if (! processed->contains(binding)) {
processed->insert(binding);
if (Identifier *id = binding->identifier()) {
_namespaceNames.insert(QByteArray(id->chars(), id->size()));
}
foreach (Namespace *ns, binding->symbols) {
for (unsigned i = 0; i < ns->memberCount(); ++i) {
Symbol *member = ns->memberAt(i);
if (Class *klass = member->asClass()) {
buildTypeMap(klass);
} else if (Enum *e = member->asEnum()) {
addType(e->name());
} else if (ForwardClassDeclaration *fwd = member->asForwardClassDeclaration()) {
addType(fwd->name());
} else if (Declaration *decl = member->asDeclaration()) {
if (decl->isTypedef())
addType(decl->name());
}
}
}
foreach (NamespaceBinding *childBinding, binding->children) {
buildTypeMap(childBinding, processed);
}
}
}
FunctionDeclaratorAST *CheckUndefinedSymbols::currentFunctionDeclarator() const
{
if (functionDeclarationStack.isEmpty())
return 0;
return functionDeclarationStack.last();
}
bool CheckUndefinedSymbols::visit(FunctionDeclaratorAST *ast)
{
functionDeclarationStack.append(ast);
return true;
}
void CheckUndefinedSymbols::endVisit(FunctionDeclaratorAST *)
{
functionDeclarationStack.removeLast();
}
bool CheckUndefinedSymbols::visit(TypeofSpecifierAST *ast)
{
accept(ast->next);
return false;
}
bool CheckUndefinedSymbols::visit(TypenameTypeParameterAST *ast)
{
if (NameAST *nameAst = ast->name)
addType(nameAst->name);
return true;
}
bool CheckUndefinedSymbols::visit(TemplateTypeParameterAST *ast)
{
if (ast->name)
addType(ast->name->name);
return true;
}
bool CheckUndefinedSymbols::visit(NamedTypeSpecifierAST *ast)
{
if (ast->name) {
if (! ast->name->name) {
unsigned line, col;
getTokenStartPosition(ast->firstToken(), &line, &col);
// qWarning() << _doc->fileName() << line << col;
} else if (Identifier *id = ast->name->name->identifier()) {
if (! _types.contains(QByteArray::fromRawData(id->chars(), id->size()))) {
if (FunctionDeclaratorAST *functionDeclarator = currentFunctionDeclarator()) {
if (functionDeclarator->as_cpp_initializer)
return true;
}
Overview oo;
translationUnit()->warning(ast->firstToken(), "`%s' is not a type name",
qPrintable(oo(ast->name->name)));
}
}
}
return true;
}
bool CheckUndefinedSymbols::visit(ClassSpecifierAST *ast)
{
if (ast->base_clause) {
unsigned line, col;
getTokenStartPosition(ast->firstToken(), &line, &col);
}
bool hasQ_OBJECT_CHECK = false;
if (ast->symbol) {
Class *klass = ast->symbol->asClass();
for (unsigned i = 0; i < klass->memberCount(); ++i) {
Symbol *symbol = klass->memberAt(i);
if (symbol->name() && symbol->name()->isNameId()) {
NameId *nameId = symbol->name()->asNameId();
if (! qstrcmp(nameId->identifier()->chars(), "qt_check_for_QOBJECT_macro")) {
hasQ_OBJECT_CHECK = true;
break;
}
}
}
}
_qobjectStack.append(hasQ_OBJECT_CHECK);
return true;
}
void CheckUndefinedSymbols::endVisit(ClassSpecifierAST *)
{ _qobjectStack.removeLast(); }
bool CheckUndefinedSymbols::qobjectCheck() const
{
if (_qobjectStack.isEmpty())
return false;
return _qobjectStack.last();
}
bool CheckUndefinedSymbols::visit(FunctionDefinitionAST *ast)
{
if (ast->symbol) {
Function *fun = ast->symbol->asFunction();
if ((fun->isSignal() || fun->isSlot()) && ! qobjectCheck()) {
translationUnit()->warning(ast->firstToken(),
"you forgot the Q_OBJECT macro");
}
}
return true;
}
bool CheckUndefinedSymbols::visit(SimpleDeclarationAST *ast)
{
const bool check = qobjectCheck();
for (List<Declaration *> *it = ast->symbols; it; it = it->next) {
Declaration *decl = it->value;
if (Function *fun = decl->type()->asFunctionType()) {
if ((fun->isSignal() || fun->isSlot()) && ! check) {
translationUnit()->warning(ast->firstToken(),
"you forgot the Q_OBJECT macro");
}
}
}
return true;
}
bool CheckUndefinedSymbols::visit(BaseSpecifierAST *base)
{
if (NameAST *nameAST = base->name) {
bool resolvedBaseClassName = false;
if (Name *name = nameAST->name) {
Identifier *id = name->identifier();
const QByteArray spell = QByteArray::fromRawData(id->chars(), id->size());
if (_types.contains(spell))
resolvedBaseClassName = true;
}
if (! resolvedBaseClassName) {
const char *token = "after `:'";
if (base->comma_token)
token = "after `,'";
translationUnit()->warning(nameAST->firstToken(),
"expected class-name %s token", token);
}
}
return true;
}
bool CheckUndefinedSymbols::visit(UsingDirectiveAST *ast)
{
if (ast->symbol && ast->symbol->name() && _globalNamespaceBinding) {
const Location loc = Location(ast->symbol);
NamespaceBinding *binding = _globalNamespaceBinding.data();
if (Scope *enclosingNamespaceScope = ast->symbol->enclosingNamespaceScope())
binding = NamespaceBinding::find(enclosingNamespaceScope->owner()->asNamespace(), binding);
if (! binding || ! binding->resolveNamespace(loc, ast->symbol->name())) {
translationUnit()->warning(ast->name->firstToken(),
"expected a namespace");
}
}
return true;
}
bool CheckUndefinedSymbols::visit(QualifiedNameAST *ast)
{
if (ast->name) {
QualifiedNameId *q = ast->name->asQualifiedNameId();
for (unsigned i = 0; i < q->nameCount() - 1; ++i) {
Name *name = q->nameAt(i);
if (Identifier *id = name->identifier()) {
const QByteArray spell = QByteArray::fromRawData(id->chars(), id->size());
if (! (_namespaceNames.contains(spell) || _types.contains(spell))) {
translationUnit()->warning(ast->firstToken(),
"`%s' is not a namespace or class name",
spell.constData());
}
}
}
}
return true;
}
bool CheckUndefinedSymbols::visit(CastExpressionAST *ast)
{
if (ast->lparen_token && ast->type_id && ast->rparen_token && ast->expression) {
if (TypeIdAST *cast_type_id = ast->type_id->asTypeId()) {
SpecifierAST *type_specifier = cast_type_id->type_specifier;
if (! cast_type_id->declarator && type_specifier && ! type_specifier->next &&
type_specifier->asNamedTypeSpecifier() && ast->expression &&
ast->expression->asUnaryExpression()) {
// this ast node is ambigious, e.g.
// (a) + b
// it can be parsed as
// ((a) + b)
// or
// (a) (+b)
accept(ast->expression);
return false;
}
}
}
return true;
}
bool CheckUndefinedSymbols::visit(SizeofExpressionAST *ast)
{
if (ast->lparen_token && ast->expression && ast->rparen_token) {
if (TypeIdAST *type_id = ast->expression->asTypeId()) {
SpecifierAST *type_specifier = type_id->type_specifier;
if (! type_id->declarator && type_specifier && ! type_specifier->next &&
type_specifier->asNamedTypeSpecifier()) {
// this sizeof expression is ambiguos, e.g.
// sizeof (a)
// `a' can be a typeid or a nested-expression.
return false;
} else if (type_id->declarator
&& type_id->declarator->postfix_declarators
&& ! type_id->declarator->postfix_declarators->next
&& type_id->declarator->postfix_declarators->asArrayDeclarator() != 0) {
// this sizeof expression is ambiguos, e.g.
// sizeof(a[10])
// `a' can be a typeid or an expression.
return false;
}
}
}
return true;
}
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
**
**************************************************************************/
#ifndef CHECKUNDEFINEDSYMBOLS_H
#define CHECKUNDEFINEDSYMBOLS_H
#include "CppDocument.h"
#include "CppBindings.h"
#include <ASTVisitor.h>
#include <QtCore/QSet>
#include <QtCore/QByteArray>
namespace CPlusPlus {
class CPLUSPLUS_EXPORT CheckUndefinedSymbols: protected ASTVisitor
{
public:
CheckUndefinedSymbols(Document::Ptr doc);
virtual ~CheckUndefinedSymbols();
void setGlobalNamespaceBinding(NamespaceBindingPtr globalNamespaceBinding);
void operator()(AST *ast);
protected:
using ASTVisitor::visit;
void addType(Name *name);
void buildTypeMap(Class *klass);
void buildTypeMap(NamespaceBinding *binding, QSet<NamespaceBinding *> *processed);
FunctionDeclaratorAST *currentFunctionDeclarator() const;
bool qobjectCheck() const;
virtual bool visit(FunctionDeclaratorAST *ast);
virtual void endVisit(FunctionDeclaratorAST *ast);
virtual bool visit(TypeofSpecifierAST *ast);
virtual bool visit(TypenameTypeParameterAST *ast);
virtual bool visit(TemplateTypeParameterAST *ast);
virtual bool visit(NamedTypeSpecifierAST *ast);
virtual bool visit(ClassSpecifierAST *ast);
virtual void endVisit(ClassSpecifierAST *);
virtual bool visit(FunctionDefinitionAST *ast);
virtual bool visit(SimpleDeclarationAST *ast);
virtual bool visit(BaseSpecifierAST *base);
virtual bool visit(UsingDirectiveAST *ast);
virtual bool visit(QualifiedNameAST *ast);
virtual bool visit(CastExpressionAST *ast);
virtual bool visit(SizeofExpressionAST *ast);
private:
Document::Ptr _doc;
NamespaceBindingPtr _globalNamespaceBinding;
QList<bool> _qobjectStack;
QList<FunctionDeclaratorAST *> functionDeclarationStack;
QSet<QByteArray> _types;
QSet<QByteArray> _namespaceNames;
};
} // end of namespace CPlusPlus
#endif // CHECKUNDEFINEDSYMBOLS_H
......@@ -28,6 +28,7 @@ HEADERS += \
$$PWD/LookupContext.h \
$$PWD/CppBindings.h \
$$PWD/ASTParent.h \
$$PWD/CheckUndefinedSymbols.h \
$$PWD/PreprocessorClient.h \
$$PWD/PreprocessorEnvironment.h \
$$PWD/Macro.h \
......@@ -49,6 +50,7 @@ SOURCES += \
$$PWD/LookupContext.cpp \
$$PWD/CppBindings.cpp \
$$PWD/ASTParent.cpp \
$$PWD/CheckUndefinedSymbols.cpp \
$$PWD/PreprocessorClient.cpp \
$$PWD/PreprocessorEnvironment.cpp \
$$PWD/FastPreprocessor.cpp \
......
......@@ -30,6 +30,7 @@
#include <cplusplus/pp.h>
#include <cplusplus/CppBindings.h>
#include <cplusplus/Overview.h>
#include <cplusplus/CheckUndefinedSymbols.h>
#include "cppmodelmanager.h"
#include "cpptoolsconstants.h"
......@@ -253,351 +254,6 @@ void CppPreprocessor::setTodo(const QStringList &files)
namespace {
class Process;
class CheckUndefinedSymbols: protected ASTVisitor
{
QSet<QByteArray> _types;
QSet<QByteArray> _namespaceNames;
public:
CheckUndefinedSymbols(Document::Ptr doc)
: ASTVisitor(doc->control()), _process(0), _doc(doc)
{ }
void setGlobalNamespaceBinding(NamespaceBindingPtr globalNamespaceBinding)
{
_globalNamespaceBinding = globalNamespaceBinding;
_types.clear();
if (_globalNamespaceBinding) {
QSet<NamespaceBinding *> processed;
buildTypeMap(_globalNamespaceBinding.data(), &processed);
}
}
void operator()(AST *ast, Process *process)
{ _process = process; accept(ast); }
protected:
using ASTVisitor::visit;
void addType(Name *name)
{
if (! name)
return;
if (Identifier *id = name->identifier())
_types.insert(QByteArray(id->chars(), id->size()));
}
void buildTypeMap(Class *klass)
{
addType(klass->name());
for (unsigned i = 0; i < klass->memberCount(); ++i) {
Symbol *member = klass->memberAt(i);
if (Class *klass = member->asClass()) {
buildTypeMap(klass);
} else if (Enum *e = member->asEnum()) {
addType(e->name());
} else if (ForwardClassDeclaration *fwd = member->asForwardClassDeclaration()) {
addType(fwd->name());
} else if (Declaration *decl = member->asDeclaration()) {
if (decl->isTypedef())
addType(decl->name());
}
}
}
void buildTypeMap(NamespaceBinding *binding, QSet<NamespaceBinding *> *processed)
{
if (! processed->contains(binding)) {
processed->insert(binding);
if (Identifier *id = binding->identifier()) {
_namespaceNames.insert(QByteArray(id->chars(), id->size()));
}
foreach (Namespace *ns, binding->symbols) {
for (unsigned i = 0; i < ns->memberCount(); ++i) {
Symbol *member = ns->memberAt(i);
if (Class *klass = member->asClass()) {
buildTypeMap(klass);
} else if (Enum *e = member->asEnum()) {
addType(e->name());
} else if (ForwardClassDeclaration *fwd = member->asForwardClassDeclaration()) {
addType(fwd->name());
} else if (Declaration *decl = member->asDeclaration()) {
if (decl->isTypedef())
addType(decl->name());
}
}
}
foreach (NamespaceBinding *childBinding, binding->children) {
buildTypeMap(childBinding, processed);
}
}
}
QList<FunctionDeclaratorAST *> functionDeclarationStack;
FunctionDeclaratorAST *currentFunctionDeclarator() const
{
if (functionDeclarationStack.isEmpty())
return 0;
return functionDeclarationStack.last();
}
virtual bool visit(FunctionDeclaratorAST *ast)
{
functionDeclarationStack.append(ast);
return true;
}
virtual void endVisit(FunctionDeclaratorAST *)
{
functionDeclarationStack.removeLast();