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-rw-r--r--sources/shiboken2/ApiExtractor/parser/declarator_compiler.cpp167
1 files changed, 167 insertions, 0 deletions
diff --git a/sources/shiboken2/ApiExtractor/parser/declarator_compiler.cpp b/sources/shiboken2/ApiExtractor/parser/declarator_compiler.cpp
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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;