diff options
Diffstat (limited to 'src/qml/compiler/qv4compilerscanfunctions_p.h')
| -rw-r--r-- | src/qml/compiler/qv4compilerscanfunctions_p.h | 161 |
1 files changed, 72 insertions, 89 deletions
diff --git a/src/qml/compiler/qv4compilerscanfunctions_p.h b/src/qml/compiler/qv4compilerscanfunctions_p.h index 0f7bf1818a..db160db09d 100644 --- a/src/qml/compiler/qv4compilerscanfunctions_p.h +++ b/src/qml/compiler/qv4compilerscanfunctions_p.h @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QV4COMPILERSCANFUNCTIONS_P_H #define QV4COMPILERSCANFUNCTIONS_P_H @@ -50,7 +14,7 @@ // We mean it. // -#include "private/qv4global_p.h" +#include <private/qtqmlcompilerglobal_p.h> #include <private/qqmljsastvisitor_p.h> #include <private/qqmljsast_p.h> #include <private/qqmljsengine_p.h> @@ -62,8 +26,6 @@ QT_BEGIN_NAMESPACE -using namespace QQmlJS; - namespace QV4 { namespace Moth { @@ -83,84 +45,105 @@ class ScanFunctions: protected QQmlJS::AST::Visitor typedef QScopedValueRollback<bool> TemporaryBoolAssignment; public: ScanFunctions(Codegen *cg, const QString &sourceCode, ContextType defaultProgramType); - void operator()(AST::Node *node); + void operator()(QQmlJS::AST::Node *node); + + // see comment at its call site in generateJSCodeForFunctionsAndBindings + // for why this function is necessary + void handleTopLevelFunctionFormals(QQmlJS::AST::FunctionExpression *node) { + if (node && node->formals) + node->formals->accept(this); + } void enterGlobalEnvironment(ContextType compilationMode); - void enterEnvironment(AST::Node *node, ContextType compilationMode, const QString &name); + void enterEnvironment(QQmlJS::AST::Node *node, ContextType compilationMode, + const QString &name); void leaveEnvironment(); - void enterQmlFunction(AST::FunctionDeclaration *ast) - { enterFunction(ast, false); } + void enterQmlFunction(QQmlJS::AST::FunctionExpression *ast) + { enterFunction(ast, FunctionNameContext::None); } protected: + // Function declarations add their name to the outer scope, but not the + // inner scope. Function expressions add their name to the inner scope, + // unless the name is actually picked from the outer scope rather than + // given after the function token. QML functions don't add their name + // anywhere because the name is already recorded in the QML element. + // This enum is used to control the behavior of enterFunction(). + enum class FunctionNameContext { + None, Inner, Outer + }; + using Visitor::visit; using Visitor::endVisit; - void checkDirectivePrologue(AST::StatementList *ast); + void checkDirectivePrologue(QQmlJS::AST::StatementList *ast); - void checkName(const QStringRef &name, const AST::SourceLocation &loc); + void checkName(QStringView name, const QQmlJS::SourceLocation &loc); - bool visit(AST::Program *ast) override; - void endVisit(AST::Program *) override; + bool visit(QQmlJS::AST::Program *ast) override; + void endVisit(QQmlJS::AST::Program *) override; - bool visit(AST::ESModule *ast) override; - void endVisit(AST::ESModule *) override; + bool visit(QQmlJS::AST::ESModule *ast) override; + void endVisit(QQmlJS::AST::ESModule *) override; - bool visit(AST::ExportDeclaration *declaration) override; - bool visit(AST::ImportDeclaration *declaration) override; + bool visit(QQmlJS::AST::ExportDeclaration *declaration) override; + bool visit(QQmlJS::AST::ImportDeclaration *declaration) override; - bool visit(AST::CallExpression *ast) override; - bool visit(AST::PatternElement *ast) override; - bool visit(AST::IdentifierExpression *ast) override; - bool visit(AST::ExpressionStatement *ast) override; - bool visit(AST::FunctionExpression *ast) override; - bool visit(AST::TemplateLiteral *ast) override; - bool visit(AST::SuperLiteral *) override; - bool visit(AST::FieldMemberExpression *) override; - bool visit(AST::ArrayPattern *) override; + bool visit(QQmlJS::AST::CallExpression *ast) override; + bool visit(QQmlJS::AST::PatternElement *ast) override; + bool visit(QQmlJS::AST::IdentifierExpression *ast) override; + bool visit(QQmlJS::AST::ExpressionStatement *ast) override; + bool visit(QQmlJS::AST::FunctionExpression *ast) override; + bool visit(QQmlJS::AST::TemplateLiteral *ast) override; + bool visit(QQmlJS::AST::SuperLiteral *) override; + bool visit(QQmlJS::AST::FieldMemberExpression *) override; + bool visit(QQmlJS::AST::ArrayPattern *) override; - bool enterFunction(AST::FunctionExpression *ast, bool enterName); + bool enterFunction(QQmlJS::AST::FunctionExpression *ast, + FunctionNameContext nameContext); - void endVisit(AST::FunctionExpression *) override; + void endVisit(QQmlJS::AST::FunctionExpression *) override; - bool visit(AST::ObjectPattern *ast) override; + bool visit(QQmlJS::AST::ObjectPattern *ast) override; - bool visit(AST::PatternProperty *ast) override; - void endVisit(AST::PatternProperty *) override; + bool visit(QQmlJS::AST::PatternProperty *ast) override; + void endVisit(QQmlJS::AST::PatternProperty *) override; - bool visit(AST::FunctionDeclaration *ast) override; - void endVisit(AST::FunctionDeclaration *) override; + bool visit(QQmlJS::AST::FunctionDeclaration *ast) override; + void endVisit(QQmlJS::AST::FunctionDeclaration *) override; - bool visit(AST::ClassExpression *ast) override; - void endVisit(AST::ClassExpression *) override; + bool visit(QQmlJS::AST::ClassExpression *ast) override; + void endVisit(QQmlJS::AST::ClassExpression *) override; - bool visit(AST::ClassDeclaration *ast) override; - void endVisit(AST::ClassDeclaration *) override; + bool visit(QQmlJS::AST::ClassDeclaration *ast) override; + void endVisit(QQmlJS::AST::ClassDeclaration *) override; - bool visit(AST::DoWhileStatement *ast) override; - bool visit(AST::ForStatement *ast) override; - void endVisit(AST::ForStatement *) override; - bool visit(AST::ForEachStatement *ast) override; - void endVisit(AST::ForEachStatement *) override; + bool visit(QQmlJS::AST::DoWhileStatement *ast) override; + bool visit(QQmlJS::AST::ForStatement *ast) override; + void endVisit(QQmlJS::AST::ForStatement *) override; + bool visit(QQmlJS::AST::ForEachStatement *ast) override; + void endVisit(QQmlJS::AST::ForEachStatement *) override; - bool visit(AST::ThisExpression *ast) override; + bool visit(QQmlJS::AST::ThisExpression *ast) override; - bool visit(AST::Block *ast) override; - void endVisit(AST::Block *ast) override; + bool visit(QQmlJS::AST::Block *ast) override; + void endVisit(QQmlJS::AST::Block *ast) override; - bool visit(AST::CaseBlock *ast) override; - void endVisit(AST::CaseBlock *ast) override; + bool visit(QQmlJS::AST::CaseBlock *ast) override; + void endVisit(QQmlJS::AST::CaseBlock *ast) override; - bool visit(AST::Catch *ast) override; - void endVisit(AST::Catch *ast) override; + bool visit(QQmlJS::AST::Catch *ast) override; + void endVisit(QQmlJS::AST::Catch *ast) override; - bool visit(AST::WithStatement *ast) override; - void endVisit(AST::WithStatement *ast) override; + bool visit(QQmlJS::AST::WithStatement *ast) override; + void endVisit(QQmlJS::AST::WithStatement *ast) override; void throwRecursionDepthError() override; protected: - bool enterFunction(AST::Node *ast, const QString &name, AST::FormalParameterList *formals, AST::StatementList *body, bool enterName); + bool enterFunction(QQmlJS::AST::Node *ast, const QString &name, + QQmlJS::AST::FormalParameterList *formals, + QQmlJS::AST::StatementList *body, FunctionNameContext nameContext); void calcEscapingVariables(); // fields: @@ -173,7 +156,7 @@ protected: ContextType defaultProgramType; private: - static constexpr AST::Node *astNodeForGlobalEnvironment = nullptr; + static constexpr QQmlJS::AST::Node *astNodeForGlobalEnvironment = nullptr; }; } |