diff options
Diffstat (limited to 'src/qml/compiler/qv4codegen.cpp')
-rw-r--r-- | src/qml/compiler/qv4codegen.cpp | 51 |
1 files changed, 31 insertions, 20 deletions
diff --git a/src/qml/compiler/qv4codegen.cpp b/src/qml/compiler/qv4codegen.cpp index ded08907dc..5a0dc11fbf 100644 --- a/src/qml/compiler/qv4codegen.cpp +++ b/src/qml/compiler/qv4codegen.cpp @@ -1,12 +1,11 @@ /**************************************************************************** ** -** Copyright (C) 2021 The Qt Company Ltd. +** Copyright (C) 2017 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtQml module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:COMM$ -** +** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the @@ -15,25 +14,26 @@ ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** -** $QT_END_LICENSE$ -** -** -** -** -** -** -** -** -** -** -** -** -** -** -** -** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** 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-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. ** +** $QT_END_LICENSE$ ** ****************************************************************************/ @@ -2927,6 +2927,17 @@ bool Codegen::visit(YieldExpression *ast) return false; } + auto innerMostCurentFunctionContext = _context; + while (innerMostCurentFunctionContext && innerMostCurentFunctionContext->contextType != ContextType::Function) + innerMostCurentFunctionContext = innerMostCurentFunctionContext->parent; + + Q_ASSERT(innerMostCurentFunctionContext); // yield outside function would have been rejected by parser + + if (!innerMostCurentFunctionContext->isGenerator) { + throwSyntaxError(ast->firstSourceLocation(), QLatin1String("Yield is only valid in generator functions")); + return false; + } + RegisterScope scope(this); TailCallBlocker blockTailCalls(this); Reference expr = ast->expression ? expression(ast->expression) : Reference::fromConst(this, Encode::undefined()); |