--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/icheck/parser/src/shared/cplusplus/CheckStatement.cpp Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,370 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+// 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 "CheckStatement.h"
+#include "Semantic.h"
+#include "AST.h"
+#include "TranslationUnit.h"
+#include "Scope.h"
+#include "CoreTypes.h"
+#include "Control.h"
+#include "Symbols.h"
+#include "Names.h"
+#include "Literals.h"
+#include <string>
+
+using namespace CPlusPlus;
+
+CheckStatement::CheckStatement(Semantic *semantic)
+ : SemanticCheck(semantic),
+ _statement(0),
+ _scope(0)
+{ }
+
+CheckStatement::~CheckStatement()
+{ }
+
+void CheckStatement::check(StatementAST *statement, Scope *scope)
+{
+ Scope *previousScope = switchScope(scope);
+ StatementAST *previousStatement = switchStatement(statement);
+ accept(statement);
+ (void) switchStatement(previousStatement);
+ (void) switchScope(previousScope);
+}
+
+StatementAST *CheckStatement::switchStatement(StatementAST *statement)
+{
+ StatementAST *previousStatement = _statement;
+ _statement = statement;
+ return previousStatement;
+}
+
+Scope *CheckStatement::switchScope(Scope *scope)
+{
+ Scope *previousScope = _scope;
+ _scope = scope;
+ return previousScope;
+}
+
+bool CheckStatement::visit(CaseStatementAST *ast)
+{
+ FullySpecifiedType exprTy = semantic()->check(ast->expression, _scope);
+ semantic()->check(ast->statement, _scope);
+ return false;
+}
+
+bool CheckStatement::visit(CompoundStatementAST *ast)
+{
+ Block *block = control()->newBlock(ast->lbrace_token);
+ block->setStartOffset(tokenAt(ast->firstToken()).offset);
+ block->setEndOffset(tokenAt(ast->lastToken()).offset);
+ ast->symbol = block;
+ _scope->enterSymbol(block);
+ Scope *previousScope = switchScope(block->members());
+ StatementAST *previousStatement = 0;
+ for (StatementListAST *it = ast->statement_list; it; it = it->next) {
+ StatementAST *statement = it->value;
+ semantic()->check(statement, _scope);
+
+ if (statement && previousStatement) {
+ ExpressionStatementAST *expressionStatement = statement->asExpressionStatement();
+ CompoundStatementAST *compoundStatement = previousStatement->asCompoundStatement();
+ if (expressionStatement && ! expressionStatement->expression && compoundStatement && compoundStatement->rbrace_token)
+ translationUnit()->warning(compoundStatement->rbrace_token, "unnecessary semicolon after block");
+ }
+
+ previousStatement = statement;
+ }
+ (void) switchScope(previousScope);
+ return false;
+}
+
+bool CheckStatement::visit(DeclarationStatementAST *ast)
+{
+ semantic()->check(ast->declaration, _scope);
+ return false;
+}
+
+bool CheckStatement::visit(DoStatementAST *ast)
+{
+ semantic()->check(ast->statement, _scope);
+ FullySpecifiedType exprTy = semantic()->check(ast->expression, _scope);
+ return false;
+}
+
+bool CheckStatement::visit(ExpressionOrDeclarationStatementAST *ast)
+{
+// translationUnit()->warning(ast->firstToken(),
+// "ambiguous expression or declaration statement");
+ if (ast->declaration)
+ semantic()->check(ast->declaration, _scope);
+ else
+ semantic()->check(ast->expression, _scope);
+ return false;
+}
+
+bool CheckStatement::visit(ExpressionStatementAST *ast)
+{
+ FullySpecifiedType exprTy = semantic()->check(ast->expression, _scope);
+ return false;
+}
+
+bool CheckStatement::forEachFastEnum(unsigned firstToken,
+ unsigned lastToken,
+ SpecifierListAST *type_specifier_list,
+ DeclaratorAST *declarator,
+ ExpressionAST *initializer,
+ ExpressionAST *expression,
+ StatementAST *statement,
+ Block *&symbol)
+{
+ Block *block = control()->newBlock(firstToken);
+ block->setStartOffset(tokenAt(firstToken).offset);
+ block->setEndOffset(tokenAt(lastToken).offset);
+ symbol = block;
+ _scope->enterSymbol(block);
+ Scope *previousScope = switchScope(block->members());
+ if (type_specifier_list && declarator) {
+ FullySpecifiedType ty = semantic()->check(type_specifier_list, _scope);
+ const Name *name = 0;
+ ty = semantic()->check(declarator, ty, _scope, &name);
+ unsigned location = declarator->firstToken();
+ if (CoreDeclaratorAST *core_declarator = declarator->core_declarator)
+ location = core_declarator->firstToken();
+ Declaration *decl = control()->newDeclaration(location, name);
+ decl->setType(ty);
+ _scope->enterSymbol(decl);
+ } else {
+ FullySpecifiedType exprTy = semantic()->check(initializer, _scope);
+ (void) exprTy;
+ }
+
+ FullySpecifiedType exprTy = semantic()->check(expression, _scope);
+ semantic()->check(statement, _scope);
+ (void) switchScope(previousScope);
+ return false;
+}
+
+bool CheckStatement::visit(ForeachStatementAST *ast)
+{
+ return forEachFastEnum(ast->firstToken(),
+ ast->lastToken(),
+ ast->type_specifier_list,
+ ast->declarator,
+ ast->initializer,
+ ast->expression,
+ ast->statement,
+ ast->symbol);
+}
+
+bool CheckStatement::visit(ObjCFastEnumerationAST *ast)
+{
+ return forEachFastEnum(ast->firstToken(),
+ ast->lastToken(),
+ ast->type_specifier_list,
+ ast->declarator,
+ ast->initializer,
+ ast->fast_enumeratable_expression,
+ ast->statement,
+ ast->symbol);
+}
+
+bool CheckStatement::visit(ForStatementAST *ast)
+{
+ Block *block = control()->newBlock(ast->for_token);
+ block->setStartOffset(tokenAt(ast->firstToken()).offset);
+ block->setEndOffset(tokenAt(ast->lastToken()).offset);
+ ast->symbol = block;
+ _scope->enterSymbol(block);
+ Scope *previousScope = switchScope(block->members());
+ semantic()->check(ast->initializer, _scope);
+ FullySpecifiedType condTy = semantic()->check(ast->condition, _scope);
+ FullySpecifiedType exprTy = semantic()->check(ast->expression, _scope);
+ semantic()->check(ast->statement, _scope);
+ (void) switchScope(previousScope);
+ return false;
+}
+
+bool CheckStatement::visit(IfStatementAST *ast)
+{
+ Block *block = control()->newBlock(ast->if_token);
+ block->setStartOffset(tokenAt(ast->firstToken()).offset);
+ block->setEndOffset(tokenAt(ast->lastToken()).offset);
+ ast->symbol = block;
+ _scope->enterSymbol(block);
+ Scope *previousScope = switchScope(block->members());
+ FullySpecifiedType exprTy = semantic()->check(ast->condition, _scope);
+ semantic()->check(ast->statement, _scope);
+ semantic()->check(ast->else_statement, _scope);
+ (void) switchScope(previousScope);
+ return false;
+}
+
+bool CheckStatement::visit(LabeledStatementAST *ast)
+{
+ semantic()->check(ast->statement, _scope);
+ return false;
+}
+
+bool CheckStatement::visit(BreakStatementAST *)
+{
+ return false;
+}
+
+bool CheckStatement::visit(ContinueStatementAST *)
+{
+ return false;
+}
+
+bool CheckStatement::visit(GotoStatementAST *)
+{
+ return false;
+}
+
+bool CheckStatement::visit(ReturnStatementAST *ast)
+{
+ FullySpecifiedType exprTy = semantic()->check(ast->expression, _scope);
+ return false;
+}
+
+bool CheckStatement::visit(SwitchStatementAST *ast)
+{
+ Block *block = control()->newBlock(ast->switch_token);
+ block->setStartOffset(tokenAt(ast->firstToken()).offset);
+ block->setEndOffset(tokenAt(ast->lastToken()).offset);
+ ast->symbol = block;
+ _scope->enterSymbol(block);
+ Scope *previousScope = switchScope(block->members());
+ FullySpecifiedType condTy = semantic()->check(ast->condition, _scope);
+ semantic()->check(ast->statement, _scope);
+ (void) switchScope(previousScope);
+ return false;
+}
+
+bool CheckStatement::visit(TryBlockStatementAST *ast)
+{
+ semantic()->check(ast->statement, _scope);
+ for (CatchClauseListAST *it = ast->catch_clause_list; it; it = it->next) {
+ semantic()->check(it->value, _scope);
+ }
+ return false;
+}
+
+bool CheckStatement::visit(CatchClauseAST *ast)
+{
+ Block *block = control()->newBlock(ast->catch_token);
+ block->setStartOffset(tokenAt(ast->firstToken()).offset);
+ block->setEndOffset(tokenAt(ast->lastToken()).offset);
+ ast->symbol = block;
+ _scope->enterSymbol(block);
+ Scope *previousScope = switchScope(block->members());
+ semantic()->check(ast->exception_declaration, _scope);
+ semantic()->check(ast->statement, _scope);
+ (void) switchScope(previousScope);
+ return false;
+}
+
+bool CheckStatement::visit(WhileStatementAST *ast)
+{
+ Block *block = control()->newBlock(ast->while_token);
+ block->setStartOffset(tokenAt(ast->firstToken()).offset);
+ block->setEndOffset(tokenAt(ast->lastToken()).offset);
+ ast->symbol = block;
+ _scope->enterSymbol(block);
+ Scope *previousScope = switchScope(block->members());
+ FullySpecifiedType condTy = semantic()->check(ast->condition, _scope);
+ semantic()->check(ast->statement, _scope);
+ (void) switchScope(previousScope);
+ return false;
+}
+
+bool CheckStatement::visit(QtMemberDeclarationAST *ast)
+{
+ const Name *name = 0;
+
+ if (tokenKind(ast->q_token) == T_Q_D)
+ name = control()->nameId(control()->findOrInsertIdentifier("d"));
+ else
+ name = control()->nameId(control()->findOrInsertIdentifier("q"));
+
+ FullySpecifiedType declTy = semantic()->check(ast->type_id, _scope);
+
+ if (tokenKind(ast->q_token) == T_Q_D) {
+ if (NamedType *namedTy = declTy->asNamedType()) {
+ if (const NameId *nameId = namedTy->name()->asNameId()) {
+ std::string privateClass;
+ privateClass += nameId->identifier()->chars();
+ privateClass += "Private";
+
+ const Name *privName = control()->nameId(control()->findOrInsertIdentifier(privateClass.c_str(),
+ privateClass.size()));
+ declTy.setType(control()->namedType(privName));
+ }
+ }
+ }
+
+ Declaration *symbol = control()->newDeclaration(/*generated*/ 0, name);
+ symbol->setType(control()->pointerType(declTy));
+
+ _scope->enterSymbol(symbol);
+
+ return false;
+}