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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2002-2005 Roberto Raggi <roberto@kdevelop.org>
** Contact: https://www.qt.io/licensing/
**
** This file is part of PySide2.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "declarator_compiler.h"
#include "name_compiler.h"
#include "type_compiler.h"
#include "compiler_utils.h"
#include "lexer.h"
#include "binder.h"
#include "tokens.h"
#include <qdebug.h>
DeclaratorCompiler::DeclaratorCompiler(Binder *binder)
: _M_binder(binder), _M_token_stream(binder->tokenStream())
{
}
void DeclaratorCompiler::run(DeclaratorAST *node)
{
_M_id.clear();
_M_parameters.clear();
_M_array.clear();
_M_function = false;
_M_reference = false;
_M_variadics = false;
_M_indirection = 0;
if (node) {
NameCompiler name_cc(_M_binder);
DeclaratorAST *decl = node;
while (decl && decl->sub_declarator)
decl = decl->sub_declarator;
Q_ASSERT(decl != 0);
name_cc.run(decl->id);
_M_id = name_cc.name();
_M_function = (node->parameter_declaration_clause != 0);
if (node->parameter_declaration_clause && node->parameter_declaration_clause->ellipsis)
_M_variadics = true;
visitNodes(this, node->ptr_ops);
visit(node->parameter_declaration_clause);
if (const ListNode<ExpressionAST*> *it = node->array_dimensions) {
it->toFront();
const ListNode<ExpressionAST*> *end = it;
do {
QString elt;
if (ExpressionAST *expr = it->element) {
const Token &start_token = _M_token_stream->token((int) expr->start_token);
const Token &end_token = _M_token_stream->token((int) expr->end_token);
elt += QString::fromUtf8(&start_token.text[start_token.position],
(int)(end_token.position - start_token.position)).trimmed();
}
_M_array.append(elt);
it = it->next;
} while (it != end);
}
}
}
void DeclaratorCompiler::visitPtrOperator(PtrOperatorAST *node)
{
std::size_t op = _M_token_stream->kind(node->op);
switch (op) {
case '&':
_M_reference = true;
break;
case '*':
++_M_indirection;
break;
default:
break;
}
if (node->mem_ptr) {
#if defined(__GNUC__)
#warning "ptr to mem -- not implemented"
#endif
}
}
void DeclaratorCompiler::visitParameterDeclaration(ParameterDeclarationAST *node)
{
Parameter p;
DeclaratorCompiler decl_cc(_M_binder);
// Find the innermost declarator, to extract the name / id of the declaration.
DeclaratorAST *declarator = node->declarator;
while (declarator && declarator->sub_declarator)
declarator = declarator->sub_declarator;
decl_cc.run(declarator);
p.name = decl_cc.id();
// Use the original declarator to extract the type.
p.type = CompilerUtils::typeDescription(node->type_specifier, node->declarator, _M_binder);
// In case if the declarator is a function pointer, extract the arguments of the declarator
// parameter clause. This only works for top-declarator function pointers, it will fail to
// determine nested function pointers.
if (declarator != node->declarator
&& node->declarator->parameter_declaration_clause) {
p.type.setFunctionPointer(true);
decl_cc.run(node->declarator);
foreach (const DeclaratorCompiler::Parameter &innerParam, decl_cc.parameters())
p.type.addArgument(innerParam.type);
}
if (node->expression != 0) {
const Token &start = _M_token_stream->token((int) node->expression->start_token);
const Token &end = _M_token_stream->token((int) node->expression->end_token);
int length = (int)(end.position - start.position);
p.defaultValueExpression = QString();
QString source = QString::fromUtf8(&start.text[start.position], length).trimmed();
QStringList list = source.split(QLatin1Char('\n'));
for (int i = 0; i < list.size(); ++i) {
if (!list.at(i).startsWith(QLatin1Char('#')))
p.defaultValueExpression += list.at(i).trimmed();
}
p.defaultValue = p.defaultValueExpression.size() > 0;
}
_M_parameters.append(p);
}
// kate: space-indent on; indent-width 2; replace-tabs on;
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