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Roberto Raggi authored
This reverts commit 33b19f02.
Roberto Raggi authoredThis reverts commit 33b19f02.
CppRewriter.cpp 10.60 KiB
/**************************************************************************
**
** This file is part of Qt Creator
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
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** Software or, alternatively, in accordance with the terms contained in
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** GNU Lesser General Public License Usage
**
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** 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.
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#include "CppRewriter.h"
#include <TypeVisitor.h>
#include <NameVisitor.h>
#include <CoreTypes.h>
#include <Symbols.h>
#include <Literals.h>
#include <Names.h>
#include <Scope.h>
#include <QtCore/QVarLengthArray>
#include <QtCore/QDebug>
using namespace CPlusPlus;
class CPlusPlus::Rewrite
{
public:
Rewrite(Control *control, SubstitutionEnvironment *env)
: control(control), env(env), rewriteType(this), rewriteName(this) {}
class RewriteType: public TypeVisitor
{
Rewrite *rewrite;
QList<FullySpecifiedType> temps;
Control *control() const
{ return rewrite->control; }
void accept(const FullySpecifiedType &ty)
{
TypeVisitor::accept(ty.type());
unsigned flags = ty.flags();
flags |= temps.back().flags();
temps.back().setFlags(flags);
}
public:
RewriteType(Rewrite *r): rewrite(r) {}
FullySpecifiedType operator()(const FullySpecifiedType &ty)
{
accept(ty);
return temps.takeLast();
}
virtual void visit(UndefinedType *)
{
temps.append(FullySpecifiedType());
}
virtual void visit(VoidType *)
{
temps.append(control()->voidType());
}
virtual void visit(IntegerType *type)
{
temps.append(control()->integerType(type->kind()));
}
virtual void visit(FloatType *type)
{
temps.append(control()->floatType(type->kind()));
}
virtual void visit(PointerToMemberType *type)
{
const Name *memberName = rewrite->rewriteName(type->memberName());
const FullySpecifiedType elementType = rewrite->rewriteType(type->elementType());
temps.append(control()->pointerToMemberType(memberName, elementType));
}
virtual void visit(PointerType *type)
{
const FullySpecifiedType elementType = rewrite->rewriteType(type->elementType());
temps.append(control()->pointerType(elementType));
}
virtual void visit(ReferenceType *type)
{
const FullySpecifiedType elementType = rewrite->rewriteType(type->elementType());
temps.append(control()->referenceType(elementType));
}
virtual void visit(ArrayType *type)
{
const FullySpecifiedType elementType = rewrite->rewriteType(type->elementType());
temps.append(control()->arrayType(elementType, type->size()));
}
virtual void visit(NamedType *type)
{
FullySpecifiedType ty = rewrite->env->apply(type->name(), rewrite);
if (! ty->isUndefinedType())
temps.append(rewrite->rewriteType(ty));
else {
const Name *name = rewrite->rewriteName(type->name());
temps.append(control()->namedType(name));
}
}
virtual void visit(Function *type)
{
Function *funTy = control()->newFunction(0, 0);
funTy->copy(type);
funTy->setName(rewrite->rewriteName(type->name()));
funTy->setReturnType(rewrite->rewriteType(type->returnType()));
for (unsigned i = 0; i < type->argumentCount(); ++i) {
Symbol *arg = type->argumentAt(i);
Argument *newArg = control()->newArgument(0, 0);
newArg->copy(arg);
newArg->setName(rewrite->rewriteName(arg->name()));
newArg->setType(rewrite->rewriteType(arg->type()));
funTy->arguments()->enterSymbol(newArg);
}
temps.append(funTy);
}
virtual void visit(Namespace *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(Class *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(Enum *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(ForwardClassDeclaration *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(ObjCClass *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(ObjCProtocol *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(ObjCMethod *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(ObjCForwardClassDeclaration *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
virtual void visit(ObjCForwardProtocolDeclaration *type)
{
qWarning() << Q_FUNC_INFO;
temps.append(type);
}
};
class RewriteName: public NameVisitor
{
Rewrite *rewrite;
QList<const Name *> temps;
Control *control() const
{ return rewrite->control; }
const Identifier *identifier(const Identifier *other) const
{
if (! other)
return 0;
return control()->findOrInsertIdentifier(other->chars(), other->size());
}
public:
RewriteName(Rewrite *r): rewrite(r) {}
const Name *operator()(const Name *name)
{
if (! name)
return 0;
accept(name);
return temps.takeLast();
}
virtual void visit(const QualifiedNameId *name)
{
const Name *base = rewrite->rewriteName(name->base());
const Name *n = rewrite->rewriteName(name->name());
temps.append(control()->qualifiedNameId(base, n));
}
virtual void visit(const NameId *name)
{
temps.append(control()->nameId(identifier(name->identifier())));
}
virtual void visit(const TemplateNameId *name)
{
QVarLengthArray<FullySpecifiedType, 8> args(name->templateArgumentCount());
for (unsigned i = 0; i < name->templateArgumentCount(); ++i)
args[i] = rewrite->rewriteType(name->templateArgumentAt(i));
temps.append(control()->templateNameId(identifier(name->identifier()), args.data(), args.size()));
}
virtual void visit(const DestructorNameId *name)
{
temps.append(control()->destructorNameId(identifier(name->identifier())));
}
virtual void visit(const OperatorNameId *name)
{
temps.append(control()->operatorNameId(name->kind()));
}
virtual void visit(const ConversionNameId *name)
{
FullySpecifiedType ty = rewrite->rewriteType(name->type());
temps.append(control()->conversionNameId(ty));
}
virtual void visit(const SelectorNameId *name)
{
QVarLengthArray<const Name *, 8> names(name->nameCount());
for (unsigned i = 0; i < name->nameCount(); ++i)
names[i] = rewrite->rewriteName(name->nameAt(i));
temps.append(control()->selectorNameId(names.constData(), names.size(), name->hasArguments()));
}
};
public: // attributes
Control *control;
SubstitutionEnvironment *env;
RewriteType rewriteType;
RewriteName rewriteName;
};
ContextSubstitution::ContextSubstitution(const LookupContext &context, Scope *scope)
: _context(context), _scope(scope)
{
}
ContextSubstitution::~ContextSubstitution()
{
}
FullySpecifiedType ContextSubstitution::apply(const Name *name, Rewrite *rewrite) const
{
const QList<LookupItem> candidates = _context.lookup(name, _scope);
foreach (const LookupItem &r, candidates) {
Symbol *s = r.declaration();
if (s->isDeclaration() && s->isTypedef()) {
qDebug() << "resolved typedef:" << s->fileName() << s->line() << s->column();
qDebug() << "scope is:" << r.scope()->owner()->fileName()
<< r.scope()->owner()->line()
<< r.scope()->owner()->column();
ContextSubstitution subst(_context, s->scope());
rewrite->env->enter(&subst);
FullySpecifiedType ty = rewrite->rewriteType(s->type());
rewrite->env->leave();
return ty;
}
}
return FullySpecifiedType();
}
SubstitutionMap::SubstitutionMap()
{
}
SubstitutionMap::~SubstitutionMap()
{
}
void SubstitutionMap::bind(const Name *name, const FullySpecifiedType &ty)
{
_map.append(qMakePair(name, ty));
}
FullySpecifiedType SubstitutionMap::apply(const Name *name, Rewrite *) const
{
for (int n = _map.size() - 1; n != -1; --n) {
const QPair<const Name *, FullySpecifiedType> &p = _map.at(n);
if (name->isEqualTo(p.first))
return p.second;
}
return FullySpecifiedType();
}
FullySpecifiedType CPlusPlus::rewriteType(const FullySpecifiedType &type,
SubstitutionEnvironment *env,
Control *control)
{
Rewrite rewrite(control, env);
return rewrite.rewriteType(type);
}
const Name *CPlusPlus::rewriteName(const Name *name,
SubstitutionEnvironment *env,
Control *control)
{
Rewrite rewrite(control, env);
return rewrite.rewriteName(name);
}