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con authored
Reviewed-by: Trust Me Conflicts: src/libs/cplusplus/CppBindings.cpp src/libs/cplusplus/CppBindings.h src/libs/cplusplus/FastPreprocessor.cpp src/libs/cplusplus/FastPreprocessor.h src/plugins/cpptools/cppcurrentdocumentfilter.cpp src/plugins/cpptools/cppcurrentdocumentfilter.h src/plugins/cpptools/cppsemanticsearch.cpp src/plugins/cpptools/cppsemanticsearch.h src/plugins/duieditor/parser/qmljs.g src/plugins/duieditor/parser/qmljsast.cpp src/plugins/duieditor/parser/qmljsast_p.h src/plugins/duieditor/parser/qmljsastfwd_p.h src/plugins/duieditor/parser/qmljsastvisitor.cpp src/plugins/duieditor/parser/qmljsastvisitor_p.h src/plugins/duieditor/parser/qmljsengine_p.cpp src/plugins/duieditor/parser/qmljsengine_p.h src/plugins/duieditor/parser/qmljsgrammar.cpp src/plugins/duieditor/parser/qmljsgrammar_p.h src/plugins/duieditor/parser/qmljslexer.cpp src/plugins/duieditor/parser/qmljslexer_p.h src/plugins/duieditor/parser/qmljsmemorypool_p.h src/plugins/duieditor/parser/qmljsnodepool_p.h src/plugins/duieditor/parser/qmljsparser.cpp src/plugins/duieditor/parser/qmljsparser_p.h src/plugins/duieditor/parser/qmljsprettypretty.cpp src/plugins/duieditor/parser/qmljsprettypretty_p.h src/plugins/duieditor/rewriter/rewriter.cpp src/plugins/duieditor/rewriter/rewriter_p.h src/plugins/duieditor/rewriter/textwriter.cpp src/plugins/duieditor/rewriter/textwriter_p.h src/shared/cplusplus/ASTClone.cpp tests/manual/cplusplus/main.cpp
con authoredReviewed-by: Trust Me Conflicts: src/libs/cplusplus/CppBindings.cpp src/libs/cplusplus/CppBindings.h src/libs/cplusplus/FastPreprocessor.cpp src/libs/cplusplus/FastPreprocessor.h src/plugins/cpptools/cppcurrentdocumentfilter.cpp src/plugins/cpptools/cppcurrentdocumentfilter.h src/plugins/cpptools/cppsemanticsearch.cpp src/plugins/cpptools/cppsemanticsearch.h src/plugins/duieditor/parser/qmljs.g src/plugins/duieditor/parser/qmljsast.cpp src/plugins/duieditor/parser/qmljsast_p.h src/plugins/duieditor/parser/qmljsastfwd_p.h src/plugins/duieditor/parser/qmljsastvisitor.cpp src/plugins/duieditor/parser/qmljsastvisitor_p.h src/plugins/duieditor/parser/qmljsengine_p.cpp src/plugins/duieditor/parser/qmljsengine_p.h src/plugins/duieditor/parser/qmljsgrammar.cpp src/plugins/duieditor/parser/qmljsgrammar_p.h src/plugins/duieditor/parser/qmljslexer.cpp src/plugins/duieditor/parser/qmljslexer_p.h src/plugins/duieditor/parser/qmljsmemorypool_p.h src/plugins/duieditor/parser/qmljsnodepool_p.h src/plugins/duieditor/parser/qmljsparser.cpp src/plugins/duieditor/parser/qmljsparser_p.h src/plugins/duieditor/parser/qmljsprettypretty.cpp src/plugins/duieditor/parser/qmljsprettypretty_p.h src/plugins/duieditor/rewriter/rewriter.cpp src/plugins/duieditor/rewriter/rewriter_p.h src/plugins/duieditor/rewriter/textwriter.cpp src/plugins/duieditor/rewriter/textwriter_p.h src/shared/cplusplus/ASTClone.cpp tests/manual/cplusplus/main.cpp
CheckDeclaration.cpp 15.46 KiB
/**************************************************************************
**
** 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.
**
**************************************************************************/
// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include "CheckDeclaration.h"
#include "Semantic.h"
#include "AST.h"
#include "TranslationUnit.h"
#include "Scope.h"
#include "Names.h"
#include "CoreTypes.h"
#include "Symbols.h"
#include "Control.h"
#include "Literals.h"
#include <cassert>
CPLUSPLUS_BEGIN_NAMESPACE
CheckDeclaration::CheckDeclaration(Semantic *semantic)
: SemanticCheck(semantic),
_declaration(0),
_scope(0),
_templateParameters(0),
_checkAnonymousArguments(false)
{ }
CheckDeclaration::~CheckDeclaration()
{ }
void CheckDeclaration::check(DeclarationAST *declaration,
Scope *scope, Scope *templateParameters)
{
Scope *previousScope = switchScope(scope);
Scope *previousTemplateParameters = switchTemplateParameters(templateParameters);
DeclarationAST *previousDeclaration = switchDeclaration(declaration);
accept(declaration);
(void) switchDeclaration(previousDeclaration);
(void) switchTemplateParameters(previousTemplateParameters);
(void) switchScope(previousScope);
}
DeclarationAST *CheckDeclaration::switchDeclaration(DeclarationAST *declaration)
{
DeclarationAST *previousDeclaration = _declaration;
_declaration = declaration;
return previousDeclaration;
}
Scope *CheckDeclaration::switchScope(Scope *scope)
{
Scope *previousScope = _scope;
_scope = scope;
return previousScope;
}
Scope *CheckDeclaration::switchTemplateParameters(Scope *templateParameters)
{
Scope *previousTemplateParameters = _templateParameters;
_templateParameters = templateParameters;
return previousTemplateParameters;
}
void CheckDeclaration::checkFunctionArguments(Function *fun)
{
if (! _checkAnonymousArguments)
return;
if (_scope->isClassScope() && fun->isPublic()) {
for (unsigned argc = 0; argc < fun->argumentCount(); ++argc) {
Argument *arg = fun->argumentAt(argc)->asArgument();
assert(arg != 0);
if (! arg->name()) {
translationUnit()->warning(arg->sourceLocation(),
"anonymous argument");
}
}
}
}
bool CheckDeclaration::visit(SimpleDeclarationAST *ast)
{
FullySpecifiedType ty = semantic()->check(ast->decl_specifier_seq, _scope);
FullySpecifiedType qualTy = ty.qualifiedType();
if (_templateParameters && ty) {
if (Class *klass = ty->asClassType()) {
klass->setTemplateParameters(_templateParameters);
}
}
if (! ast->declarators && ast->decl_specifier_seq && ! ast->decl_specifier_seq->next) {
if (ElaboratedTypeSpecifierAST *elab_type_spec = ast->decl_specifier_seq->asElaboratedTypeSpecifier()) {
unsigned sourceLocation = elab_type_spec->firstToken();
if (elab_type_spec->name)
sourceLocation = elab_type_spec->name->firstToken();
Name *name = semantic()->check(elab_type_spec->name, _scope);
ForwardClassDeclaration *symbol =
control()->newForwardClassDeclaration(sourceLocation, name);
if (_templateParameters) {
symbol->setTemplateParameters(_templateParameters);
_templateParameters = 0;
}
_scope->enterSymbol(symbol);
return false;
}
}
const bool isQ_SLOT = ast->qt_invokable_token && tokenKind(ast->qt_invokable_token) == T_Q_SLOT;
const bool isQ_SIGNAL = ast->qt_invokable_token && tokenKind(ast->qt_invokable_token) == T_Q_SIGNAL;
List<Declaration *> **decl_it = &ast->symbols;
for (DeclaratorListAST *it = ast->declarators; it; it = it->next) {
Name *name = 0;
FullySpecifiedType declTy = semantic()->check(it->declarator, qualTy,
_scope, &name);
unsigned location = 0;
if (it->declarator)
location = it->declarator->firstToken();
else
location = ast->firstToken();
Function *fun = 0;
if (declTy && 0 != (fun = declTy->asFunctionType())) {
fun->setSourceLocation(location);
fun->setScope(_scope);
fun->setName(name);
fun->setMethodKey(semantic()->currentMethodKey());
if (isQ_SIGNAL)
fun->setMethodKey(Function::SignalMethod);
else if (isQ_SLOT)
fun->setMethodKey(Function::SlotMethod);
fun->setVisibility(semantic()->currentVisibility());
} else if (semantic()->currentMethodKey() != Function::NormalMethod) {
translationUnit()->warning(ast->firstToken(),
"expected a function declaration");
}
Declaration *symbol = control()->newDeclaration(location, name);
symbol->setStartOffset(tokenAt(ast->firstToken()).offset);
symbol->setEndOffset(tokenAt(ast->lastToken()).offset);
symbol->setType(control()->integerType(IntegerType::Int));
symbol->setType(declTy);
if (_templateParameters && it == ast->declarators && ty && ! ty->isClassType())
symbol->setTemplateParameters(_templateParameters);
symbol->setVisibility(semantic()->currentVisibility());
if (ty.isFriend())
symbol->setStorage(Symbol::Friend);
else if (ty.isRegister())
symbol->setStorage(Symbol::Register);
else if (ty.isStatic())
symbol->setStorage(Symbol::Static);
else if (ty.isExtern())
symbol->setStorage(Symbol::Extern);
else if (ty.isMutable())
symbol->setStorage(Symbol::Mutable);
else if (ty.isTypedef())
symbol->setStorage(Symbol::Typedef);
*decl_it = new (translationUnit()->memoryPool()) List<Declaration *>();
(*decl_it)->value = symbol;
decl_it = &(*decl_it)->next;
_scope->enterSymbol(symbol);
}
return false;
}
bool CheckDeclaration::visit(EmptyDeclarationAST *)
{
return false;
}
bool CheckDeclaration::visit(AccessDeclarationAST *ast)
{
int accessSpecifier = tokenKind(ast->access_specifier_token);
int visibility = semantic()->visibilityForAccessSpecifier(accessSpecifier);
semantic()->switchVisibility(visibility);
if (ast->slots_token)
semantic()->switchMethodKey(Function::SlotMethod);
else if (accessSpecifier == T_SIGNALS)
semantic()->switchMethodKey(Function::SignalMethod);
else
semantic()->switchMethodKey(Function::NormalMethod);
return false;
}
bool CheckDeclaration::visit(AsmDefinitionAST *)
{
return false;
}
bool CheckDeclaration::visit(ExceptionDeclarationAST *)
{
return false;
}
bool CheckDeclaration::visit(FunctionDefinitionAST *ast)
{
FullySpecifiedType ty = semantic()->check(ast->decl_specifier_seq, _scope);
FullySpecifiedType qualTy = ty.qualifiedType();
Name *name = 0;
FullySpecifiedType funTy = semantic()->check(ast->declarator, qualTy,
_scope, &name);
if (! (funTy && funTy->isFunctionType())) {
translationUnit()->error(ast->firstToken(),
"expected a function prototype");
return false;
}
Function *fun = funTy->asFunctionType();
fun->setStartOffset(tokenAt(ast->firstToken()).offset);
fun->setEndOffset(tokenAt(ast->lastToken()).offset);
if (ast->declarator)
fun->setSourceLocation(ast->declarator->firstToken());
fun->setName(name);
fun->setTemplateParameters(_templateParameters);
fun->setVisibility(semantic()->currentVisibility());
fun->setMethodKey(semantic()->currentMethodKey());
const bool isQ_SLOT = ast->qt_invokable_token && tokenKind(ast->qt_invokable_token) == T_Q_SLOT;
const bool isQ_SIGNAL = ast->qt_invokable_token && tokenKind(ast->qt_invokable_token) == T_Q_SIGNAL;
if (isQ_SIGNAL)
fun->setMethodKey(Function::SignalMethod);
else if (isQ_SLOT)
fun->setMethodKey(Function::SlotMethod);
checkFunctionArguments(fun);
ast->symbol = fun;
_scope->enterSymbol(fun);
if (ast->ctor_initializer) {
bool looksLikeCtor = false;
if (ty.isValid() || ! fun->identity())
looksLikeCtor = false;
else if (fun->identity()->isNameId() || fun->identity()->isTemplateNameId())
looksLikeCtor = true;
if (! looksLikeCtor) {
translationUnit()->error(ast->ctor_initializer->firstToken(),
"only constructors take base initializers");
}
}
const int previousVisibility = semantic()->switchVisibility(Symbol::Public);
const int previousMethodKey = semantic()->switchMethodKey(Function::NormalMethod);
semantic()->check(ast->function_body, fun->members());
semantic()->switchMethodKey(previousMethodKey);
semantic()->switchVisibility(previousVisibility);
if (ast->next && ast->next->asEmptyDeclaration()) {
translationUnit()->warning(ast->next->firstToken(),
"unnecessary semicolon after function block");
}
return false;
}
bool CheckDeclaration::visit(LinkageBodyAST *ast)
{
for (DeclarationAST *decl = ast->declarations; decl; decl = decl->next) {
semantic()->check(decl, _scope);
}
return false;
}
bool CheckDeclaration::visit(LinkageSpecificationAST *ast)
{
for (DeclarationAST *decl = ast->declaration; decl; decl = decl->next) {
semantic()->check(decl, _scope);
}
return false;
}
bool CheckDeclaration::visit(NamespaceAST *ast)
{
Identifier *id = identifier(ast->identifier_token);
Name *namespaceName = control()->nameId(id);
unsigned sourceLocation = ast->firstToken();
if (ast->identifier_token)
sourceLocation = ast->identifier_token;
Namespace *ns = control()->newNamespace(sourceLocation, namespaceName);
ns->setStartOffset(tokenAt(ast->firstToken()).offset);
ns->setEndOffset(tokenAt(ast->lastToken()).offset);
ast->symbol = ns;
_scope->enterSymbol(ns);
semantic()->check(ast->linkage_body, ns->members()); // ### we'll do the merge later.
if (ast->next && ast->next->asEmptyDeclaration()) {
translationUnit()->warning(ast->next->firstToken(),
"unnecessary semicolon after namespace");
}
return false;
}
bool CheckDeclaration::visit(NamespaceAliasDefinitionAST *)
{
return false;
}
bool CheckDeclaration::visit(ParameterDeclarationAST *ast)
{
unsigned sourceLocation = 0;
if (ast->declarator)
sourceLocation = ast->declarator->firstToken();
Name *argName = 0;
FullySpecifiedType ty = semantic()->check(ast->type_specifier, _scope);
FullySpecifiedType argTy = semantic()->check(ast->declarator, ty.qualifiedType(),
_scope, &argName);
FullySpecifiedType exprTy = semantic()->check(ast->expression, _scope);
Argument *arg = control()->newArgument(sourceLocation, argName);
ast->symbol = arg;
if (ast->expression)
arg->setInitializer(true);
arg->setType(argTy);
_scope->enterSymbol(arg);
return false;
}
bool CheckDeclaration::visit(TemplateDeclarationAST *ast)
{
Scope *previousScope = switchScope(new Scope(_scope->owner()));
for (DeclarationAST *param = ast->template_parameters; param;
param = param->next) {
semantic()->check(param, _scope);
}
Scope *templateParameters = switchScope(previousScope);
semantic()->check(ast->declaration, _scope, templateParameters);
return false;
}
bool CheckDeclaration::visit(TypenameTypeParameterAST *ast)
{
unsigned sourceLocation = ast->firstToken();
if (ast->name)
sourceLocation = ast->name->firstToken();
Name *name = semantic()->check(ast->name, _scope);
Argument *arg = control()->newArgument(sourceLocation, name); // ### new template type
ast->symbol = arg;
_scope->enterSymbol(arg);
return false;
}
bool CheckDeclaration::visit(TemplateTypeParameterAST *ast)
{
unsigned sourceLocation = ast->firstToken();
if (ast->name)
sourceLocation = ast->name->firstToken();
Name *name = semantic()->check(ast->name, _scope);
Argument *arg = control()->newArgument(sourceLocation, name); // ### new template type
ast->symbol = arg;
_scope->enterSymbol(arg);
return false;
}
bool CheckDeclaration::visit(UsingAST *ast)
{
Name *name = semantic()->check(ast->name, _scope);
unsigned sourceLocation = ast->firstToken();
if (ast->name)
sourceLocation = ast->name->firstToken();
UsingDeclaration *u = control()->newUsingDeclaration(sourceLocation, name);
ast->symbol = u;
_scope->enterSymbol(u);
return false;
}
bool CheckDeclaration::visit(UsingDirectiveAST *ast)
{
Name *name = semantic()->check(ast->name, _scope);
unsigned sourceLocation = ast->firstToken();
if (ast->name)
sourceLocation = ast->name->firstToken();
UsingNamespaceDirective *u = control()->newUsingNamespaceDirective(sourceLocation, name);
ast->symbol = u;
_scope->enterSymbol(u);
if (! (_scope->isBlockScope() || _scope->isNamespaceScope()))
translationUnit()->error(ast->firstToken(),
"using-directive not within namespace or block scope");
return false;
}
CPLUSPLUS_END_NAMESPACE